Academic literature on the topic 'Cafeteria experiment'
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Journal articles on the topic "Cafeteria experiment"
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Burgi, U., M. E. Burgi-Saville, F. Ziegler, L. Krahenbuhl, G. Huber, and C. Schoch. "Food intake, body and heart composition, and heart rate in T3 plus atenolol-treated rats." American Journal of Physiology-Endocrinology and Metabolism 256, no. 4 (April 1, 1989): E459—E466. http://dx.doi.org/10.1152/ajpendo.1989.256.4.e459.
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Thyroid hormones and beta-blockers both affect energy balance and the heart. The interaction of 3,5,3'-triiodothyronine (T3) and the beta-blocker atenolol on some cardiac and energy balance parameters was therefore investigated. Stock-fed male Wistar rats (approximately 400 g) received 5 micrograms (expt 1) or 1.5 micrograms (expt 2) T3.100 g body wt-1.day-1 for 3 wk, with or without atenolol. In expt 3, rats were overfed with a "cafeteria" diet before and during the experiment and otherwise treated as in experiment 2. Compared with stock-fed (expt 1 and 2) or overfed (expt 3) controls, T3 caused an increase in food intake in experiments 1 and 2 but not in experiment 3. There was a large loss of body fat in all experiments, disproportionately greater than the body weight loss. Protein loss was significant only in experiment 1 and negligible in cafeteria rats. Heart rate and weight were increased, although heart composition remained unchanged. Atenolol, in a dose that abolished T3-induced tachycardia, did not modify any of the other T3 effects investigated, including the hypertrophy of the heart. These results indicate that T3-induced tachycardia can be abolished by concomitant treatment with a beta-blocker without altering parameters connected with energy balance, whereas protein loss caused by T3 can be attenuated by lowering the dose of T3 used and can be further blunted by dietary manipulation (cafeteria overfeeding).
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LeBlanc, Jacques, Diane Lupien, Pierre Diamond, Marcos Macari, and Denis Richard. "Thermogenesis in response to various intakes of palatable food." Canadian Journal of Physiology and Pharmacology 64, no. 7 (July 1, 1986): 976–82. http://dx.doi.org/10.1139/y86-167.
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Complete energy balance studies were made on groups of overfed (A) and underfed (B) Wistar rats. In experiment A one group was fed cafeteria diet ad libitum (the intake was 29% larger than the control), two other groups were fed the same diet but in restricted quantities (18 and 9% above control), and a fourth group, fed a stock diet, served as control. In experiment B, caloric intake was restricted by 12 and 31% in two groups fed cafeteria diet, and by 21 and 34% in two other groups fed stock diet. The experiments lasted 41 days and during that period the protein gain was comparable between the control and the cafeteria-29% group (643.4 ± 33.3 vs. 578.1 ± 25.0) but the fat gain was significantly different between the two groups (863.2 ± 81.6 vs. 1663.2 ± 99.8 kJ). When energy expenditure (EE) (metabolizable energy less storage added to the cost of storage) is expressed as a percentage of metabolizable energy (ME) intake no significant difference was found among the groups. The average value was [Formula: see text]. This finding would not support the presence of dietary-induced thermogenesis in animals overfed on the cafeteria diet. However, since the obligatory cost associated with storing energy would not explain the higher EE of the overfed groups, it is suggested that the level of ME intake exerts continuous proportional regulatory action on EE and, as a result, energy is spared by underfeeding and it is wasted by overfeeding. Rats fed the cafeteria diet, independent of whether they are overfed or restricted were shown to increase both brown adipose tissue (BAT) protein content and thermogenic capacity in response to norepinephrine. For that reason it is suggested that it is not the caloric content of the diet which affects BAT but instead other factors such as fat content or palatability of the food. The results also suggest that BAT is not directly implicated in the regulatory responses associated with various intakes of food. Indeed in the underfed experiment, although the capacity of the BAT was enhanced in the cafeteria groups, the EE was not different from that of the animals fed the stock diet.
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De Luca, B., M. Monda, M. P. Pellicano, and A. Zenga. "Cortical control of thermogenesis induced by lateral hypothalamic lesion and overeating." American Journal of Physiology-Regulatory, Integrative and Comparative Physiology 253, no. 4 (October 1, 1987): R626—R633. http://dx.doi.org/10.1152/ajpregu.1987.253.4.r626.
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Increased O2 consumption was found in rats after bilateral lesions of the lateral hypothalamus (LH) or during voluntary overeating. This phenomenon appears to be mediated by the sympathetic nervous system (SNS) in both conditions, since it is blocked by the beta-blocker propranolol administration. In the first experiment we showed that the brain cortex is involved in the thermogenesis induced by LH lesion and this effect is mediated by SNS, since bilateral functional decortication induced by cortical-spreading depression (CSD) impaired the increase of O2 consumption to the same extent as administration of propranolol. In the second experiment the role played by the cerebral cortex on thermogenesis in rats during voluntary overeating of "cafeteria" diet and in control rats was investigated. Cafeteria rats showed a significantly higher colonic temperature, brown adipose tissue temperature (Tbat), and rate of O2 consumption than control animals. CSD led to a significant decrease of Tbat and O2 consumption in cafeteria rats but not in controls. On the basis of the results obtained in the two experiments, the possibility that the cerebral cortex could be involved in the metabolic responses for reduction of body weight to the "set-point" is hypothesized.
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Goularte, Jéferson F., Maria B. C. Ferreira, and Gilberto L. Sanvitto. "Effects of food pattern change and physical exercise on cafeteria diet-induced obesity in female rats." British Journal of Nutrition 108, no. 8 (January 23, 2012): 1511–18. http://dx.doi.org/10.1017/s0007114511006933.
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Obesity affects a large number of people around the world and appears to be the result of changes in food intake, eating habits and physical activity levels. Changes in dietary patterns and physical exercise are therefore strongly recommended to treat obesity and its complications. The present study tested the hypothesis that obesity and metabolic changes produced by a cafeteria diet can be prevented with dietary changes and/or physical exercise. A total of fifty-six female Wistar rats underwent one of five treatments: chow diet; cafeteria diet; cafeteria diet followed by a chow diet; cafeteria diet plus exercise; cafeteria diet followed by a chow diet plus exercise. The duration of the experiment was 34 weeks. The cafeteria diet resulted in higher energy intake, weight gain, increased visceral adipose tissue and liver weight, and insulin resistance. The cafeteria diet followed by the chow diet resulted in energy intake, body weight, visceral adipose tissue and liver weight and insulin sensitivity equal to that of the controls. Exercise increased total energy intake at week 34, but produced no changes in the animals' body weight or adipose tissue mass. However, insulin sensitivity in animals subjected to exercise and the diet was similar to that of the controls. The present study found that exposure to palatable food caused obesity and insulin resistance and a diet change was sufficient to prevent cafeteria diet-induced obesity and to maintain insulin sensitivity at normal levels. In addition, exercise resulted in normal insulin sensitivity in obese rats. These results may help to develop new approaches for the treatment of obesity and type 2 diabetes mellitus.
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NADERALI, Ebrahim K., Lucy C. PICKAVANCE, John P. H. WILDING, and Gareth WILLIAMS. "Diet-induced endothelial dysfunction in the rat is independent of the degree of increase in total body weight." Clinical Science 100, no. 6 (May 3, 2001): 635–41. http://dx.doi.org/10.1042/cs1000635.
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A growing number of studies indicate an association between obesity, insulin resistance, dyslipidaemia and cardiovascular disorders, collectively known as Syndrome X. In this study we have aimed to produce a model of Syndrome X by voluntary feeding of Wistar rats with a highly palatable cafeteria diet, and examined its effects on metabolic changes and vascular reactivity of Wistar rats. At the end of the experiment, the cafeteria-diet fed group was divided into two groups of low weight gain (LWG) and high weight gain (HWG). Both LWG and HWG groups had significantly (P < 0.01) higher fat-pad mass than their chow-fed counterparts, while gastrocnemius muscle mass were comparable. All cafeteria-diet fed rats had significantly (P < 0.01) raised plasma triacylglycerol (TG) levels whereas plasma non-esterified fatty acids, glucose and insulin levels were similar between chow-fed and cafeteria-diet fed rats. Vasorelaxation responses to acteylcholine, insulin and sodium nitroprusside were significantly (P < 0.01) attenuated in cafeteria-diet fed animals; however, there were no differences in contractile responses of the mesenteric arteries to noradrenaline or KCl between the groups. Multiple regression analysis showed a significant (P < 0.05) negative association between plasma TG levels and reduction in acetylcholine-induced vasorelaxation. Acetylcholine-induced vasorelaxation was also significantly (P < 0.05) associated with the amount of fat-pad mass. These data suggest that diet-induced vascular dysfunction can occur in the absence of insulin resistance, and that plasma TGs may have a detrimental effect on vascular reactivity.
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Andersson, Ola, and Lif Nelander. "Nudge the Lunch: A Field Experiment Testing Menu-Primacy Effects on Lunch Choices." Games 12, no. 1 (January 5, 2021): 2. http://dx.doi.org/10.3390/g12010002.
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By way of a field experiment conducted at a university cafeteria this paper finds that placing a vegetarian option instead of a meat option at the top of a menu decreases the share of meat dishes sold by 11%. This translates to a 6% decrease of daily emissions due to food sales. Using data on payment method, we find that the result is most likely driven by non-students responding to the nudge.
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Klas, Cynthia Fontoura, Rebeca Loureiro Rebouças, Géssica de Mattos Diosti, Kader Osman, Luiz Felipe Paludo Carmona, Luiz Fernando Kubrusly, and Camila Moraes Marques. "The Effect of Stool Transplantation on Weight Control in Obese Rats." Journal of Coloproctology 41, no. 01 (March 2021): 058–62. http://dx.doi.org/10.1055/s-0041-1724068.
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Abstract Introduction Obesity is defined as a multifactorial metabolic syndrome in which there is an excessive number of fat cells within the tissues. It is discussed that intestinal microbiota might have a relevant relation with obesity, since it is relevantly altered in obese patients. Objectives To assess the effect of stool transplantation (ST) in the condition of obesity and its outcomes in an experimental model of cafeteria diet by analyzing histology and weight gain. Methods Forty male Wistar rats were randomly assigned to 5 groups: control (CO), control with antibiotics (CO + ATB), obesity (CAF + ATB), stool transplantation (ATB + ST) and obesity with stool transplantation (CAF + ATB + ST). During the experiment, obesity induction groups received cafeteria diet, whereas the remaining groups had normal diet ad libitum. After 3 months, daily ST was carried out for 8 weeks by gavage procedure. The animals were euthanized, and the small intestine was harvested for further analysis. Results It was observed that before starting the ST, the cafeteria and normal diet groups had significant weight difference (p < 0,0001). In the comparison between CAF + ATB and CAF + ATB + ST during the gavage period, the CAF + ATB + ST group presented lower weight gain (p = 0.0017). The histopathological evaluation show that the ATB + ST group did not present intestinal crypt distortion. Conclusion Cafeteria diet resulted in an expected weight gain. In relation to the ST, it has been shown that the procedure is effective in reducing weekly weight gain. Apparently, there was no induction of disabsortive syndrome in nonobese animals that received ST.
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Lizarraga-Sánchez, H. L., F. J. Solorio-Sánchez, and C. A. Sandoval-Castro. "Voluntary intake of five forage trees in a cafeteria trial." Proceedings of the British Society of Animal Science 2001 (2001): 106. http://dx.doi.org/10.1017/s1752756200004889.
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In tropical countries is a common practice to feed cattle with variety of forage trees as supplements. In order to develop adequate strategies for management of trees, an assessment is needed of their potential use (intake) by cattle. Little research has been conducted in this area, and most effort has been focused on single forage evaluation. The objective of this experiment was to assess the preference by cattle of five forage trees. Preference was taken as the voluntary intake of a tree forage offered in a cafeteria trial.
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Zhu, Yan, and Dong Wang. "Leaf Volatiles from Two Corydalis Species Lure A Keystone Seed-dispersing Ant and Enhance Seed Retrieval." Sociobiology 65, no. 3 (October 2, 2018): 370. http://dx.doi.org/10.13102/sociobiology.v65i3.2726.
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It has been reported that a suit of plant traits can regulate the ant-seed interaction and subsequently affect the seed dispersal. However, the role of plant volatiles in attracting the ants for seed dispersal remains little examined. We used a Y-tube olfactometer to test behavior response of a keystone seed-dispersing ant (Pristomyrmex pungens Mayr) to leaves and seeds of five co-occurring myrmecochorous Corydalis species (C. wilfordii Regel, C. racemosa (Thunberg) Persoon, C. sheareri S. Moore, C. balansae Prain and C. incisa (Thunberg) Persoon). Of the five species, only C. wilfordii and C. racemosa leaves emits heavily volatiles. We also performed seed cafeteria experiments to assess the effect of leaf volatiles from C. racemosa on seed retrieval by presenting simultaneously the seeds near the fresh leaf and the leaf immersed by diethyl ether both in the field and lab. The experiment using Y-tube showed that the ants were only significantly attracted by the fresh leaves of two species, C. wilfordii and C. racemosa. The cafeteria experiments showed that ants spent less time to detect the C. racemosa seeds which were near the fresh leaf, and transported these seeds more quickly. This indicated that the leaf volatiles can function as an attractant for the dispersing ants, and ant preference in turn enhance the seed retrieval. The findings reveal that leaf volatiles can play na important but underestimated role in shaping the ant-seed dispersing interactions.
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Bouaziz, Assia, Amira Leila Dib, Nedjoua Lakhdara, Louiza Kadja, Elena Espigares, Elena Moreno, Omar Bouaziz, and Mohammed Gagaoua. "Study of Probiotic Effects of Bifidobacterium animalis subsp. lactis BB-12 and Lactobacillus plantarum 299v Strains on Biochemical and Morphometric Parameters of Rabbits after Obesity Induction." Biology 10, no. 2 (February 7, 2021): 131. http://dx.doi.org/10.3390/biology10020131.
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This study aimed first to develop an experimental model of obesity and metabolic syndrome over 14 weeks using a diet called “cafeteria”, which is a high-fat diet, to evaluate its consequences on the biochemical and morphometric parameters in ITELV2006 strain rabbits. Second, the trial aimed to evaluate the effect of two strains of probiotics, these being Bifidobacterium animalis subsp. lactis BB-12® and Lactobacillus plantarum 299v®, on the obesity and MetS induced during the first experiment. Overall, the results of the “cafeteria” diet demonstrated significant changes in numerous biochemical and morphometric parameters, reproducing obesity and the main clinical manifestations of the metabolic syndrome in humans. The administration of the two probiotic strains demonstrated an impact on certain parameters of obesity and induced MetS. This study makes it possible to conclude that probiotics could be useful in the treatment of obesity and metabolic syndrome of rabbits, but in a dependent manner. Furthermore, this study evidenced the importance of selecting specific probiotic strains and dosages to achieve desirable results on rabbits or other species.
Dissertations / Theses on the topic "Cafeteria experiment"
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Nelander, Lif. "Nudge the lunch : a field experiment testing primacy effects using a menu intervention approach in a university cafeteria." Thesis, Uppsala universitet, Nationalekonomiska institutionen, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-392280.
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The world is facing a global climate crisis and a collective step towards a more sustainable lifestyle is of importance. Food consumption accounts for a large part of an individuals’ total emissions and as the production of meat generally emits less green-house-gases than that of plant-based alternatives, changing towards a more plant-based diet can be one step to a more sustainable lifestyle. This study outlines a field experiment at a university cafeteria where the menu order was altered by random assignment. It is tested if placing the vegetarian option at the top of the menu has a causal effect on the share of vegetarian option sold that day, i.e. if it is possible to nudge customers to choose a more sustainable option. Using ordinary least squares and a beta regression models, the results do not show a positive treatment effect on the share of vegetarian option sold but do find a significantly average negative effect of 5.5 percentage points on the share of meat option sold. This effect it translated to an average negative effect of 6 percent on the daily emissions due to food sales at the cafeteria.
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Holanda, Patrícia Morais de Aquino. "Influência do aroma sobre o comportamento do consumidor : um experimento em cafeterias." Universidade de Fortaleza, 2005. http://dspace.unifor.br/handle/tede/82214.
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Previous issue date: 2005-08-31The sensorial stimulus influence in the consumer behavior has been considered and investigated for more than fifty years. However the researches have been increasing around the Experiment or Sensorial Marketing. At the end of 90 s, the Olfative Marketing was meaningful explored. This research intends to add this theme, identifying the aroma consumer influence, the point of sale attraction, the consumer induction and general satisfaction aspects related with the point of sale and the product, in the alimentation sector. For this, we carried out an experiment in a coffee shop. The results indicated that the aroma utilization influences the consumer attraction for the point of sale and induces the coffee consume, but there´s no aroma influence in the satisfaction. Finally, we show the academic and management contributions, suggesting new researches in the area. Keywords: Experiential Marketing. Sensorial Marketing. Olfative Marketing. Consumer Behavior. Aroma. Coffee Shop.
A influência dos estímulos sensoriais no comportamento do consumidor vem sendo discutida e pesquisada há mais de 50 anos. Porém, um grande salto foi dado nos últimos anos, com a intensificação das pesquisas em torno do marketing experiencial e ou sensorial. Com essa intensificação, ao final da década de 90, houve uma significativa exploração do estímulo olfativo. Esta pesquisa tem como propósito o enriquecimento deste tema, mediante a identificação da influência que o aroma exerce sobre o consumidor, como atração ao ponto de venda, indução ao consumo e satisfação de aspectos gerais relacionados ao ponto de venda e ao produto, no setor alimentício. Para tanto, foi realizado experimento em uma cafeteria. Os resultados evidenciam que a utilização do aroma interfere na atração do consumidor ao ponto de venda e induz ao consumo de café. Porém, com relação à satisfação do cliente, os dados mostram não haver interferência direta do aroma. Por fim, são expostas, aqui, as contribuições acadêmicas e gerenciais do estudo, apontando para novas investigações na área. Palavras-Chaves: Marketing Sensorial. Marketing Olfativo. Comportamento do consumidor. Aroma. Cafeterias.
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Berry, Christopher J. J. "Post-dispersal seed predation in a conifer-broadleaf forest remnant : the importance of exotic mammals." Lincoln University, 2006. http://hdl.handle.net/10182/666.
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Despite extensive international acceptance of the critical role of mammalian post-dispersal seed predation in many plant communities, in New Zealand we have limited knowledge of these predators’ influence on plant recruitment in our forests. The principle objective of my thesis was to determine the importance of exotic mammals as post-dispersal seed predators in a New Zealand conifer-broadleaf forest remnant. To address this goal, I used a series of field-based experiments where the actions of different post-dispersal seed predators were separated by wire-mesh exclosures. My study was conducted at Mount Peel Forest Park Scenic Reserve, South Canterbury, New Zealand. Being a human modified conifer forest currently dominated by broadleaf species, it is typical of forest remnants in New Zealand. This presented an opportunity to study a wide range of both potential post-dispersal seed predators and broadleaf tree species. My findings indicate that exotic mammals are not only post-dispersal seed predators at Peel Forest, but are responsible for the majority of post-dispersal predation events observed. Ship rats (Rattus rattus) were the dominant post-dispersal seed predators, while brushtail possums (Trichosurus vulpecula), house mice (Mus musculus) and native invertebrates were also important post-dispersal seed predators for several tree species. Through use of time-lapse video and cafeteria experiments I found that exotic mammalian seed predators, when compared to native invertebrate seed predators, preyed upon larger-seeded plant species and were responsible for considerable seed losses of several tree species. However, exotic mammalian seed predators do share several foraging characteristics with native invertebrate seed predators, as predators foraged in similar habitats and responded in a similar way to changes in seed density. In investigating if post-dispersal seed predation by mammals had a flow-on effect to plant recruitment, I observed natural seedling densities at Peel Forest were significantly higher in the absence of mammalian seed predators, but I found no evidence that the presence of mammals significantly altered the overall species richness. At the community level, I did not find an interaction between habitat and exotic mammals, however I present evidence that for individual plant species a significant mammal : habitat interaction occurred. Consequently, even though my cafeteria experiment implied there was no significant difference in the overall amount of seed preyed upon within different habitats, the less favourable microsite conditions for germination under an intact continuous canopy allows mammals to exacerbate habitat-related patterns of seed mortality and have a noticeable effect on seedling establishment. In an effort to validate the use of manipulative experiments to predict the long-term effect of post-dispersal seed predation on plant dynamics, I attempted to link results of my cafeteria experiment with observed seedling abundance at Peel Forest. Seven tree species were used in this comparison and a strong correlation was observed. This result shows that the level of post-dispersal seed predation determined in the cafeteria experiment provided a good predictor of the effect of mammalian post-dispersal seed predation on seedling establishment. To fully gauge the impact of mammalian post-dispersal seed predators on seedling establishment, the relationship between these seed predators and the type of recruitment limitation experienced by a plant species was also investigated. By using a combination of seed addition, plot manipulations and seed predator exclusion I was able to investigate this relationship. I found evidence that seed limitation at Peel Forest is positively correlated with seed size, and that while mammalian post-dispersal seed predators can further reduce plant recruitment of plant species experiencing seed limitation, the influence of mammals in determining plant recruitment was limited for plant species experiencing microsite limitation. My study has proven that exotic mammals are now the dominant post-dispersal seed predators at Peel Forest, the amount of seed preyed upon varies among plant species, and post-dispersal seed predation by mammalian species can lead to differences in seedling richness and abundance. I proved that the influence of exotic mammals on seedling establishment is also linked to habitat structure and recruitment limitations. When combined these observations suggest that exotic mammalian post-dispersal seed predators may play an important role in determining landscape abundance and distribution of plants at Peel Forest.
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Carvalho, Fabiana Maria Coimbra de. "Efeito anti-inflamat?rio de prote?nas sacietog?nicas da semente de tamarindo em modelo experimental de s?ndrome metab?lica." PROGRAMA DE P?S-GRADUA??O EM NUTRI??O, 2016. https://repositorio.ufrn.br/jspui/handle/123456789/21674.
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Conselho Nacional de Desenvolvimento Cient?fico e Tecnol?gico (CNPq)
Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior (CAPES)
Os inibidores de tripsina s?o estudados numa variedade de modelos, devido as suas propriedades bioativas, tais como: atividades antiobesidade e anti-inflamat?ria. O nosso grupo demonstrou, anteriormente, o efeito satietog?nico do inibidor de tripsina de semente de tamarindo (ITT) em modelos de ratos eutr?ficos e tamb?m tem evidenciado o efeito anti-inflamat?rio de diversos outros inibidores de tripsina. Neste estudo, foi avaliado o efeito do ITT sobre a saciedade, par?metros bioqu?micos e inflamat?rios em um modelo experimental de s?ndrome metab?lica (SM). Tr?s grupos de ratos Wistar, obesos, adultos, machos (n = 5) com SM receberam durante 10 dias, os seguintes tratamentos: 1) dieta cafeteria; 2) dieta cafetaria + ITT (25 mg / kg) e 3) dieta padr?o. O ITT provocou a redu??o do consumo alimentar em animais obesos com SM. No entanto, relacionado ao ganho de peso n?o foi observado diferen?a entre os grupos estudados bem como para os par?metros de dislipidemia. Entretanto, o grupo que recebeu a dieta padr?o mostrou valores inferiores da Lipoprote?nas de muito baixa densidade (VLDL) e Triglicer?deos (TG) (Kruskal-Wallis, p <0,05). Quanto aos par?metros inflamat?rios estudados, foi demostrado que a produ??o de interleucina-6 (IL-6) n?o diferiu entre os grupos. Curiosamente, o fator de necrose tumoral-alfa (TNF-?) se apresentou inferior nos animais que receberam o ITT. A atividade foi confirmada em animais obesos com SM. Sendo observado que a utiliza??o da dieta de cafetaria + ITT, promeveu redu??o da inflama??o, independente da perda de peso. Isso classifica o ITT como um candidato para estudos relacionados ? sua efic?cia como adjuvante no tratamento da SM.
Trypsin inhibitors are studied in a variety of models for their anti-obesity and anti-inflammatory bioactive properties. Our group has previously demonstrated the satietogenic effect of tamarind seed trypsin inhibitors (TTI) in eutrophic mouse models and anti-inflammatory effects of other trypsin inhibitors. In this study, we evaluated TTI effect upon satiety, biochemical and inflammatory parameters in an experimental model of metabolic syndrome (MetS). Three groups of n=5 male Wistar rats with obesity-based MetS received for 10 days one of the following: 1) Cafeteria diet; 2) Cafeteria diet + TTI (25 mg/Kg); 3) Standard diet. TTI reduced food intake in animals with MetS. Nevertheless, weight gain was not different between studied groups. Dyslipidemia parameters were not different with the use of TTI, only the group receiving standard diet showed lower VLDL and triglycerides (TG) (Kruskal-Wallis, p < 0.05). IL-6 production did not differ between groups. Interestingly, TNF-? was lower in animals receiving TTI. Our results corroborate the satietogenic effect of TTI in a MetS model. Furthermore, we show that TTI used with a cafeteria diet may decrease inflammation regardless of weight loss. This puts TTI as a candidate for studies to test its effectiveness as an adjuvant in MetS treatment.
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Ferreira, Claudio Meilman. "The short-and long-term impact of an incentives program on healthier eating: a quasi-experiment in school cafeterias in Brazil." reponame:Repositório Institucional do FGV, 2016. http://hdl.handle.net/10438/17763.
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The impact of economic incentives on healthier eating is unclear, particularly in the long-term (i.e., after the intervention period). This research assessed the short- and long-term effectiveness of a private nutrition company’s promotion initiative in school cafeterias in Belo Horizonte, Brazil. Two hundred and eight children and adolescents from 3 schools participated in a short-lived, lottery-based incentives program contingent on the purchase of locally promoted healthy products. One hundred and forty-four children and adolescents from a fourth comparable school served as controls. A multilevel model compared the average number of promoted healthy products purchased daily per participant before (26 weekdays), during (9 weekdays), and after (28 weekdays) the intervention period. The results indicate a clear short-term effect. The incentives program significantly increased the purchase of promoted healthy products during (vs. before) the intervention period in the treated schools, specially among girls and younger children. On average, no long-term effect was observed. The purchase of the promoted healthy products returned to pre-intervention levels immediately after the removal of the incentives program. Interestingly, a detailed analysis revealed a rather heterogeneous long-term effect based on past consumption behavior. The incentive promoted a positive long-term effect on the children who had never consumed the incentivized healthier products prior to the intervention, whereas a negative long-term effect was noted for the already habitual consumers of the targeted healthier products. Past consumption behavior must be taken into consideration for a complete understanding of the long-term effects of incentives on healthier eating.
O impacto de incentivos econômicos sobre a alimentação saudável não é claro, particularmente no longo prazo (ou seja, após o período da intervenção). Esta pesquisa avaliou a eficácia de curto e longo prazo de uma iniciativa de promoção de uma empresa de nutrição privada em cantinas escolares em Belo Horizonte, Brasil. Duzentas e oito crianças e adolescentes de três escolas participaram de um programa de incentivos de curta duração baseado em um sorteio, condicionado à compra de produtos saudáveis promovidos localmente. Cento e quarenta e quatro crianças e adolescentes de uma quarta escola comparável serviram como controles. Um modelo multinível comparou o número médio de produtos saudáveis promovidos adquiridos diariamente por participante antes (26 dias úteis), durante (9 dias úteis) e após (28 dias úteis) o período da intervenção. Os resultados indicam um efeito claro de curto prazo. O programa de incentivos aumentou significativamente a compra de produtos saudáveis promovidos durante o período da intervenção (vs. antes) nas escolas tratadas, especialmente entre as meninas e crianças mais novas. Em média, nenhum efeito de longo prazo foi observado. A compra dos produtos saudáveis promovidos retornou aos níveis pré-intervenção imediatamente após a remoção do programa de incentivos. Curiosamente, uma análise detalhada revelou um efeito bastante heterogêneo de longo prazo baseado no comportamento prévio de consumo dos indivíduos. O incentivo promoveu um efeito positivo de longo prazo sobre as crianças que nunca haviam consumido os produtos promovidos e saudáveis antes da intervenção, ao passo que um efeito negativo de longo prazo foi observado para os consumidores já habituais dos produtos mais saudáveis visados. O comportamento do consumo passado deve ser levado em consideração para uma melhor compreensão dos efeitos de longo prazo de incentivos sobre uma alimentação mais saudável.
Book chapters on the topic "Cafeteria experiment"
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Akai, Kenju. "School Cafeteria Experiments for Food Healthy Messages." In Service Engineering for Gastronomic Sciences, 173–90. Singapore: Springer Singapore, 2020. http://dx.doi.org/10.1007/978-981-15-5321-9_9.
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Pasqualotto, Karoline Rodrigues, Janaini Brunoski, Any Karoline Almeida, Marília Rizzi, Rosane Aparecida Ribeiro, Marcelo Paulo Bueno da Silva, Mário Augusto Cray da Costa, and Dionizia Xavier Scomparin. "AÇÕES DA SUPLEMENTAÇÃO COM CASEÍNA SOBRE A OBESIDADE E HOMEOSTASE DA GLICOSE EM RATAS ALIMENTADAS COM DIETA DE CAFETERIA." In Patologia: Molecular, humana e experimental, 67–78. Atena Editora, 2021. http://dx.doi.org/10.22533/at.ed.1632128067.
Full textConference papers on the topic "Cafeteria experiment"
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Baky, Md Abdullah Hil, Muhammad Nazmul Hassan Khan, Md Faisal Kader, and Habibullah Amin Chowdhury. "Production of Biogas by Anaerobic Digestion of Food Waste and Process Simulation." In ASME 2014 8th International Conference on Energy Sustainability collocated with the ASME 2014 12th International Conference on Fuel Cell Science, Engineering and Technology. American Society of Mechanical Engineers, 2014. http://dx.doi.org/10.1115/es2014-6756.
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Anaerobic Digestion is a biological process that takes place naturally when microorganisms break down organic matter in the absence of oxygen. In an enclosed chamber, controlled anaerobic digestion of organic matter produces biogas which is predominantly methane. The produced methane then can be directly used for rural cooking; or after certain conditioning, can be used in onsite power generation, heating homes or as vehicular fuel. Besides, food waste is increasingly becoming a major problem in every society imposing serious economic and environmental concerns. For this reason, many contemporary researches are emphasizing in finding sustainable solutions to recycle and produce energy from such waste. In this context, this paper aims to study and optimize the production of biogas from food waste (rice). For the experiment, an existing wet digestion biogas plant installed in Islamic University of Technology was used. The food waste (rice) for the research was collected from the cafeteria of Islamic University of Technology. Furthermore, a process simulation was performed by PROII software to estimate the methane production rate. Eventually, the simulated and experimental results were compared. The duration of the study period was 120 days. The experimental results showed that an average specific gas production of 14.4 kg-mol/hr can be obtained for 0.05 kg-mol/hr of starch loading rate. In case of the simulated results, the gas production was found to be 19.82 kg-mol/hr for the same loading rate of starch. The percentage of methane and CO2 obtained in the biogas plant was 69% and 29% respectively.