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Journal articles on the topic 'Piper peltatum'

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Author: Grafiati
Published: 27 July 2024
Last updated: 29 July 2024

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1

Fuertes, César M. "Actividad inhibitoria in vitro de extractos etanólicos de plantas del género Annona y Piper sobre promastigotes de Leishmania braziliensis." Revista Peruana de Medicina Integrativa 3, no. 3 (March 25, 2019): 112. http://dx.doi.org/10.26722/rpmi.2018.33.90.

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Objetivo. Evaluar el efecto de extractos etanólicos de cinco especies del género Annona y cinco especies del género Piper frente a la línea clonal de referencia de promastigotes de Leishmania braziliensis. Materiales y métodos. Se evaluó el efecto de los extractos etanolicos de Annona hypoglauca, Annonamontana, mucosa, Annona nítida, Annona squamosa, Piper acutifolium¸ Piper aduncum, Piper callosum,Piper carpunya y Piper peltatum; sobre cepas de promastigotes de Leishmania braziliensis MHON/BR/79/M2904. El efecto leishmanicida in vitro se evaluó mediante el cálculo del IC50 por el método probit. Resultados. Las especies con mayor actividad fueron P. acutifolium (IC50=19,40 μg/mL) P. peltatum (IC50=26,6 μg/mL), P. callosum (IC50=21,7 μg/mL), A. mucosa (IC50=30,5 μg/mL) y A. montana (IC50=16,4 μg/mL). Conclusión. Los extractos etanólicos de P. acutifolium, P. peltatum, P. callosum, A. mucosa y A. montana, han mostrado una actividad leishmanicida in vitro. Sin embargo, estos efectos no son superiores a los exhibidos por Anfotericina B.
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2

Rafalski, Claudiene, Alessandra De Rezende Ramos, Elizabeth Amélia Alves Duarte, Ilmarina Campos de Menezes, Thiago Alves Santos de Oliveira, and Roseane Cavalcanti Dos Santos. "Physiological and Oxidative Effects of Native Piperaceae From Brazilian Amazon on Growth of Weed." Journal of Agricultural Studies 8, no. 4 (November 4, 2020): 651. http://dx.doi.org/10.5296/jas.v8i4.17755.

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The use of bioherbicides for the sustainable management of weeds is one of the main challenges of agriculture. With this approach, the application of complex (crude) extract has shown to be inore efficient and less expensive due to phytotoxic (together) presence, than single, isolated, or majority compounds. In this perspective, the aqueous extract of the five Piper spp. (Piper divaricatum, P. hispidum, P. marginatum, P. peltatum, and P. reticulatum) native from the Amazon region, Brazil were used to evaluate the physiological and oxidative effects on the emergence and growth of common weeds under controlled conditions and in greenhouse. The extract obtained in sufficient quantity and the expected inhibitory effect was used in biochemical assays again with lettuce (indicator plant) and weeds seedlings, focusing on antioxidative enzymes activity. We verify the allelopathic potential of the P. divaricatum and P. peltatum, which caused high toxicity to lettuce and weeds seedlings in vitro and in vivo assays. In both Piper extract at 1.5%, the emergence inhibition of weed seedlings was up to 70%. This concentration also influenced the growth of seedlings. As to responses of antioxidative enzymes, we found that lettuce seedlings were widely affected by the exposition of Piper extracts (P. divaricatum and P. peltatum) at 5%, with an input of 89%, 300%, and 290% on SOD, CAT, and APX activities, respectively. Thus, Piper divaricatum and P. peltatum are potent allelopathic species that could contribute to minimize the damage of crops caused by weed competitions.
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3

Soto Vásquez, Marilú Roxana. "Estudio fitoquímico y cuantificación de flavonoides totales de las hojas de Piper peltatum L. y Piper aduncum L. procedentes de la región Amazonas." In Crescendo 6, no. 1 (June 26, 2015): 33. http://dx.doi.org/10.21895/incres.2015.v6n1.04.

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El presente trabajo tuvo como objetivo realizar el estudio fitoquímico y determinar la concentración de flavonoides totales de las hojas de Piper peltatum L. y Piper aduncum L. procedentes de la región Amazonas. Las especies fueron recolectadas en el distrito de Río Santiago, provincia de Condorcanqui, región Amazonas. El tamizaje fitoquímico se realizó usando reactivos de coloración y precipitación. Los flavonoides totales se cuantificaron con el método de Kostennikova. Se encontró una alta diversidad de metabolitos en ambas especies, como alcaloides, triterpenos y esteroides, flavonoides, fenoles y taninos, azúcares reductores, quinonas, compuestos grasos, cumarinas y resinas; sólo se evidenció la presencia de saponinas en la especie de Piper aduncum L. El contenido de flavonoides totales en las especies de Piper peltatum L. y Piper aduncum L. fue de 1,8 ± 0,16 y 2,51 ± 0,15 g equivalentes a quercetina por cada 100 g de hoja seca, respectivamente; la especie de Piper aduncum L. fue la que presentó mayor concentración de flavonoides expresados como quercetina con diferencias estadísticamente significativas (p < 0,05).
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4

Pinto, Ana, Francisco Chaves, Pierre dos Santos, Cecília Nunez, Wanderli Tadei, and Adrian Pohlit. "Piper peltatum: Biomass and 4-Nerolidylcatechol Production." Planta Medica 76, no. 13 (March 1, 2010): 1473–76. http://dx.doi.org/10.1055/s-0029-1240938.

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5

Noronha, Aloyséia C. S., Ilmarina C. Menezes, Júlia J. Ferla, Regiane C. Vieira, Leonardo S. Duarte, and Jeferson L. C. Mineiro. "Tetranychus marianae McGregor, 1950 (Acari: Tetranychidae) in Piper (Piperaceae) species in the state of Pará, Brazil." Entomological Communications 3 (December 6, 2021): ec03034. http://dx.doi.org/10.37486/2675-1305.ec03034.

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This study reports the occurrence of the phytophagous mite Tetranychus marianae McGregor, 1950 (Tetranychidae), in species of the genus Piper (P. hispidum Sw., P. marginatum Jacq., P. montealegreanum Yunk., P. peltatum L., P. reticulatum L., and P. tuberculatum Jacq.) (Piperaceae) and the predator mite Amblyseius tamatavensis Blommers, 1974 (Phytoseiidae), in species and cultivars of Piper nigrum L., from the Piperaceae collection of Embrapa Amazônia Oriental in Belém, Pará.
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6

Rito, Danielle Santana, Eduardo Filipe Torres Vieira, Ilmarina Campos de Menezes, Osmar Alves Lameira, Marli Costa Poltronieri, Oriel Filgueira de Lemos, and Simone de Miranda Rodrigues. "Caracterização morfológica de piperáceas nativas conservadas em casa de vegetação." Research, Society and Development 10, no. 6 (May 31, 2021): e33410615686. http://dx.doi.org/10.33448/rsd-v10i6.15686.

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A família Piperácea possui diversas espécies de interesse econômico, medicinal, ornamental e ambiental. A Embrapa Amazônia Oriental possui uma coleção de piperáceas nativas para garantir a diversidade dessas espécies e o uso em programas de melhoramento genético, dentre outras finalidades. Esse trabalho teve como objetivo descrever as características morfológicas de quatro espécies de piperáceas conservadas em casa de vegetação: Piper marginatum Jacq., Piper montealegreanum Yunck, Piper peltatum L. e Piper tuberculatum Jacq. Foi mensurado o comprimento e largura de folhas, pedúnculo, pecíolo, espigas, entrenós, e altura das plantas. Também foi avaliado o hábito de crescimento, filotaxia das folhas, formato de folhas e caule, presença de lenticelas e ataque de pragas e doenças nos espécimes. Documentou-se a coloração de folhas, caules e espigas usando a carta de Munsell. Os dados consideraram a média das medidas aferidas de quatro espécimes, por espécie, para cada órgão avaliado e comparado a informações da literatura. Os resultados demonstraram que ocorreram diferenças nas características morfológicas das plantas quando cultivadas em ambientes controlados.
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7

Michel, T., A. Kerdudo, EN Ellong, V. Gonnot, S. Rocchi, JF Tanti, L. Boyer, S. Adenet, K. Rochefort, and X. Fernandez. "Anti-inflammatory, cytotoxic and antimicrobial activities of Piper peltatum leaf extract." Planta Medica 81, S 01 (December 14, 2016): S1—S381. http://dx.doi.org/10.1055/s-0036-1596571.

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8

Saravia-Otten, Patricia, Rosario Hernández, José M. Gutiérrez, Max Mérida, and Armando Cáceres. "Evaluación de la capacidad neutralizante de extractos de plantas de uso popular en Guatemala como antí­dotos para el envenenamiento por la mordedura de la serpiente Bothrops asper." Ciencia, Tecnologí­a y Salud 2, no. 1 (July 1, 2015): 25–37. http://dx.doi.org/10.36829/63cts.v2i1.34.

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Se determinó la capacidad de los extractos de seis plantas de uso etnomédico (Acacia hindsii, Aristolochia maxima, Cissampelos pareira, Hamelia patens, Piper peltatum y Sansevieria hyacinthoides) para neutralizar los efectos proteolí­tico y fosfolipasa A2 (PLA2) del veneno de Bothrops asper, la principal especie causante de envenenamiento en el paí­s. Estos efectos, indicadores de la capacidad miotóxica, hemorrágica e inflamatoria del veneno, se evaluaron en ensayos controlados in vitro. Las plantas fueron colectadas, secadas y extraí­das por percolación con etanol. Los resultados demuestran que ninguno de los extractos posee actividad PLA2 o proteolí­tica intrí­nseca a las dosis estudiadas. Se determinó que tres de los extractos neutralizaron pobremente (< 50%) los efectos estudiados: S. hyacinthoides neutralizó 13.90 ± 6.41% del efecto PLA2 y P. peltatum y C. pareira el 32.98 ± 5.51% y 24.52 ± 7.45%, respectivamente, del efecto proteolí­tico. Por ello, ningún extracto se evaluó en pruebas de neutralización de la letalidad en ratones. Se concluye que no es recomendable el uso aislado de estas plantas en el tratamiento del envenenamiento por mordedura de B. asper, aunque posiblemente las que demostraron alguna actividad puedan resultar potenciadas al usarse en combinación con otras plantas, como se hace en las recetas tradicionales. Dada la complejidad de los componentes del veneno y sus efectos fisiopatológicos, falta investigar la capacidad de las plantas estudiadas para neutralizar las coagulopatí­as, edema y miotoxicidad producidas durante el envenenamiento.
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9

Núñez, Vitelbina, Víctor Castro, Renato Murillo, Luis A. Ponce-Soto, Irmgard Merfort, and Bruno Lomonte. "Inhibitory effects of Piper umbellatum and Piper peltatum extracts towards myotoxic phospholipases A2 from Bothrops snake venoms: Isolation of 4-nerolidylcatechol as active principle." Phytochemistry 66, no. 9 (May 2005): 1017–25. http://dx.doi.org/10.1016/j.phytochem.2005.03.026.

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10

Pinheiro, Esmael Cunha, and Geraldo José Nascimento de Vasconcelos. "Efeito letal de extratos de piperáceas ao ácaro-vermelho-das-palmeiras, Raoiella indica (Acari: Tenuipalpidae)." Revista Verde de Agroecologia e Desenvolvimento Sustentável 15, no. 3 (July 1, 2020): 229–38. http://dx.doi.org/10.18378/rvads.v15i3.7632.

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Desde a introdução do ácaro-vermelho-das-palmeiras, Raoiella indica, no Brasil, diversos métodos de controle têm sido estudados para supressão desta praga, a exemplo dos métodos de controle quarentenários, químicos, biológicos e com extratos vegetais. O presente estudo objetivou avaliar o potencial letal de extratos aquosos de folha de Piper aduncum, P. callosum, P. hostmannianum, P. marginatum e P. peltatum sobre R. indica. Foi avaliada a ação residual de contato dos extratos, aplicados por imersão, nas concentrações de 0, 5, 10, 15, 20, 25 e 30%, sendo a ação avaliada em três períodos de exposição, 24, 48 e 72 h. A partir dos dados de mortalidade nas diferentes concentrações e em cada período de exposição foram determinadas as mortalidades corrigidas e as concentrações letais (CL25% e CL50%) dos extratos das piperáceas para a população de R. indica. Apenas os extratos de P. aduncum, a 5% após 24 h de exposição, e P. callosum, nesta mesma concentração em todos os tempos de exposição, não apresentaram mortalidade corrigida diferente do controle. As CL25% variaram de 0,99 a 13,02%, 1,29 a 7,89% e 1,82 a 7,69%, respectivamente, para os períodos de exposição de 24, 48 e 72 h. Já as CL50%, respectivamente para os mesmos períodos, variaram de 2,27 a 21,29%, 2,33 a 13,26% e 2,84 a 10,94%. Os extratos aquosos de folha das cinco espécies de piperáceas apresentaram efeito toxicológico sobre a população de R. indica.
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11

Saravia-Otten, Patricia, Rosario Hernández, Nereida Marroquín, Gabriela García, Max Mérida, Sully Cruz, Nohemí Orozco, Armando Cáceres, and José M. Gutiérrez. "Inhibición de los efectos coagulante, fosfolipasa A2 y proteolítico del veneno de Bothrops asper por plantas usadas tradicionalmente en Centroamérica." Ciencia, Tecnologí­a y Salud 4, no. 2 (December 31, 2017): 203–16. http://dx.doi.org/10.36829/63cts.v4i2.355.

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Existen pocos estudios científicos que demuestren el valor terapéutico de las plantas en la medicina tradicional centroamericana para tratar el envenenamiento ofídico. En este estudio se evaluó la capacidad de los extractos etanólicos de nueve plantas de uso etnomédico en Centroamérica (Acacia hindsii, Aristolochia maxima, Bursera simaruba, Cissampelos pareira, Eryngium foetidum, Hamelia patens, Pimenta dioica, Piper peltatum y Sansevieria hyacinthoides) para inhibir el efecto coagulante del veneno de Bothrops asper. Tres de ellas (B. simaruba, E. foetidum y P. dioica) también fueron evaluadas en cuanto a su capacidad inhibitoria de los efectos fosfolipasa A2 (PLA2) y proteolítico del veneno. Las plantas fueron colectadas en Guatemala, secadas, extraídas con etanol y los efectos inhibitorios evaluados in vitro después de preincubar concentraciones variables de extracto con concentraciones fijas de veneno. Los resultados demostraron que ninguno de los extractos logró inhibir los efectos coagulante y PLA2, pero los extractos clorofilados de P. dioica y E. foetidum inhibieron efectivamente la actividad proteolítica del veneno. El tamizaje fitoquímico, mediante ensayos macro y semimicrométricos de cromatografía en capa fina, demostró la presencia de metabolitos secundarios reportados con actividad antiproteolítica (flavonoides, antocianinas, catequinas y taninos) en la composición química de los extractos de E. foetidum y P. dioica. Su efecto sobre el veneno se evaluó mediante electroforesis SDS-PAGE, demostrándose que no está mediado por degradación proteolítica de los componentes del veneno. El aislamiento y caracterización específica de sus metabolitos secundarios en futuros estudios, permitirá determinar el mecanismo de acción inhibitoria ejercido por estos extractos.
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12

Caballero-Gallardo, Karina, Neda Alvarez-Ortega, and Jesus Olivero-Verbel. "Cytotoxicity of Nine Medicinal Plants from San Basilio de Palenque (Colombia) on HepG2 Cells." Plants 12, no. 14 (July 19, 2023): 2686. http://dx.doi.org/10.3390/plants12142686.

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The utilization of plants with medicinal properties is deeply rooted in the traditional knowledge of diverse human populations. This study aims to investigate the cytotoxicity of nine plants commonly used by communities in San Basilio de Palenque, Bolivar (Colombia), for managing inflammation-related illnesses. Hydroethanolic extracts from various plant parts such as roots, stems, barks, or leaves were prepared through a process involving drying, powdering, and maceration in an ethanol–water (7:3) solution. The extracts were subsequently freeze-dried and dissolved in DMSO for the bioassays. Cytotoxicity against the human hepatoma HepG2 cell line was assessed using the MTT assay, with extract concentrations ranging from 0 to 500 µg/mL and treatment durations of 24 and 48 h. The total phenolic content of the nine extracts varied from 96.7 to 167.6 mg GAE/g DT. Among them, eight hydroethanolic extracts from Jatropha gossypiifolia L., Piper peltatum L., Malachra alceifolia, Verbesina turbacensis, Ricinus communis, Desmodium incanum, and Dolichandra unguis-cati showed low toxicity (IC50 > 500 µg/mL, 24 h) against HepG2 cells. On the other hand, the extracts of Aristolochia odoratissima L. (IC50 = 95.7 µg/mL) and Picramnia latifolia (IC50 = 128.9 µg/mL) demonstrated the highest cytotoxicity against the HepG2 cell line, displaying a modest selectivity index when compared to the HEKn cell line after 48 h of treatment. These findings suggest that medicinal plants from San Basilio de Palenque, particularly Picramnia latifolia and Aristolochia odoratissima, have potential activity against cancer cells, highlighting their potential for further research and development.
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13

Jaramillo, M. Alejandra, Dayro Rodríguez-Duque, and Magda Escobar-Alba. "A new species of Piper (Piperaceae) with peltate leaves from Serranía de las Quinchas, Colombia." PhytoKeys 227 (May 29, 2023): 9–24. http://dx.doi.org/10.3897/phytokeys.227.101405.

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Piper quinchasense is described and illustrated as a new species occurring in the understory of wet montane forest of the middle Magdalena Valley in Colombia, the easternmost portion of the Chocó Region. Its relationships are discussed with related taxa from the Macrostachys clade. An identification key for 35 Neotropical Piper species with peltate leaves is provided.
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14

Chao-Yun, Hao, Tan Yun-Hong, Hu Li-Song, Tan Le-He, Chen Hai-Ping, Qin Xia-Wei, Wu Gang, and Wu Hua-Song. "Piper peltatifolium, a new species of Piperaceae from Hainan, China." Phytotaxa 236, no. 3 (December 1, 2015): 291. http://dx.doi.org/10.11646/phytotaxa.236.3.12.

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Piper peltatifolium, a new species of Piperaceae from Hainan, China, is here described and illustrated. The new species is morphologically similar to P. hongkongense, but the former can be easily distinguished by the combination of characteristics: trophophyll blades peltate and subleathery with nonbranched hairs; leaves with longer sheaths; stamens usually only two; anthers ovoid and shorter than filaments; ovaries ellipsoid to ovoid; stigmas 3 or 4, or rarely 5; bracts suborbicular, sessile, and adnate to rachis; and drupes slightly hispidulous.
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Sulaiman, Endang, Nopriyeni Nopriyeni, Carles Darwin, and Anggi Lusianti. "Diversity Of Liana Plants Available In The Konak Protected Forest Area, Kepahiang District, Kepahiang Regency." JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS 8, no. 3 (November 28, 2022): 820–30. http://dx.doi.org/10.36987/jpbn.v8i3.3170.

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This study aims to determine the diversity of lianas found in the Konak Protection Forest, Kepahiang District, Kepahiang Regency. Penelitian ini menggunakan metode purposive sampling yang dilaksanakan pada bulan Januari-Februari 2022. Pengambilan sampel menggunakan metode plot, dimana petakan plot disusun sepanjang garis transek secara sistematik. This study used a purposive sampling method,which was carried out in January-February 2022. Sampling used the plot method, where plots were arranged systematically along transect lines. The samples obtained were then identified at the Bengkulu Muhammadiyah University Laboratory. The results of the study in the Konak Protection Forest, Kepahiang District, Kepahiang Regency, obtained 12 families which included 20 species, namely Araceae (Pothos scandens), Arecaceae (Calamus javensis, Korthalsia rigida), Asteraceae (Mikania micrantha), Basellaceae (Anredera cordifolia), Convolvulaceae (Merremia peltata).(Merremia vitifolia), Cucurbitaceae (Momordica charantia), Dioscoraceae (Dioscorea hispida, Dioscorea alata), Fabaceae (Calopogonium mucunoides, Centrosema pubescens, Psophocarpus tetragonolobus), Menispermoideae (Cycle barbata, Pericampylus galusia (Passiflora crispa), Passiflora Piperaceae (Piper nigrum, Piper retrofracrum), Schizaeaceae, (Lygodium flexuosum). Based on the species diversity index (H') of lianas in the Konak Protection Forest area, Kepahiang District, Kepahiang Regency, which is 1.211, and is included in the category of medium diversity. With temperatures ranging from 25°C-30°C, humidity between 55% - 89%, and light intensity ranging from 507 Lux – 2115 Lux.Keywords: diversity, liana, konak protected forest
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K.P, Prasanth, and Sekaran S. "A COMPARATIVE ANATOMICAL CHARACTERISTICS OF THE STEMS OF CLIMBING PLANTS IN ARALAM WILD LIFE SANCTUARY, KANNUR." Kongunadu Research Journal 3, no. 1 (June 30, 2016): 37–44. http://dx.doi.org/10.26524/krj124.

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Climbing plants differ from self-supporting plants, such as shrubs and trees, in a range of characteristics. The most notable is the mechanical properties of the stem Comparison of the differentiated anatomical structures recorded in ten species of the climbing plants. The plants selected for the present study are Ampelocissus latifolia, (Vitaceae), Lygodium flexuosum (Lygodiaceae), Centrosema virginianum (Fabaceae), Tinospora cordifolia, (Menispermaceae), Wattakakka volubilis (Asclepiadaceae) Cyclea peltata (Menispermaceae), Calycopteris floribunda (Combretaceae) Pothos scandens (Araceae) Ipomoea separia (Convolvulaceae) and Piper nigrum (Piperaceae). The stems of climbing plants are characterized by the scarcity of supporting cells (fibers) and an increase in the diameter of the xylem vessels. The study con firms that they show a greater diversity of organization than other plant life forms. This anatomical radiation couldprobably not exist without the achievement of a wide range of secondary growth processes. Many dicotyledons, notably those with a climbing habit, show interesting secondary structure which differs from the more usual type described, therefore, sometimes termed anomalous. The variant secondary growth isparticularly widespread in tropical climbers. It is speculated that variant growth can increase stem flexibility, protect the phloem, increase storage parenchyma, aid in clinging to supports, limit physical disruption of vascular tissues during twisting and bending, and promote wound healing after girdling.
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K.P, Prasanth, and Sekaran S. "A COMPARATIVE ANATOMICAL CHARACTERISTICS OF THE STEMS OF CLIMBING PLANTS IN ARALAM WILD LEFE SANCTUARY, KANNUR." Kongunadu Research Journal 4, no. 1 (June 30, 2017): 92–95. http://dx.doi.org/10.26524/krj184.

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Climbing plants differ from self-supporting plants, such as shrubs and trees, in a range of characteristics. The most notable is the mechanical properties of the stem Comparison of the differentiated anatomical structures recorded in ten species of the climbing plants. The plants selected for the present study are Ampelocissus latifolia,(Vitaceae), Lygodium flexuosum (Lygodiaceae), Centrosema virginianum(Fabaceae), Tinospora cordifolia,(Menispermaceae), Wattakakka volubilis (Asclepiadaceae) Cyclea peltata (Menispermaceae), Calycopteris floribunda (Combretaceae) Pothos scandens(Araceae) Ipomoea separia (Convolvulaceae) and Piper nigrum (Piperaceae). The stems of climbing plants are characterized by the scarcity of supporting cells (fibers) and an increase in the diameter of the xylem vessels. The study con firms that they show a greater diversity of organization than other plant life forms. This anatomical radiation couldprobably not exist without the achievement of a wide range of secondary growth processes. Many dicotyledons, notably those with a climbing habit, show interesting secondary structure which differs from the more usual type described, therefore, sometimes termed anomalous. The variant secondary growth isparticularly widespread in tropical climbers. It is speculated that variant growth can increase stem flexibility, protect the phloem, increase storage parenchyma, aid in clinging to supports, limit physical disruption of vascular tissues during twisting and bending, and promote wound healing after girdling.
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18

"Piper peltatum." CABI Compendium CABI Compendium (January 7, 2022). http://dx.doi.org/10.1079/cabicompendium.41377.

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19

Pilco, G., D. Vinueza, K. Acosta, and A. Torres. "Actividad Inhibitoria De La Hialuronidasa Del Extracto Hidroalcohólico De Piper Peltatum/Hyaluronidase Inhibitor Activity in Hydroalcoholic Extracts of Piper Peltatum." KnE Engineering, January 26, 2020. http://dx.doi.org/10.18502/keg.v5i2.6241.

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Ecuador se ubica en una zona geográfica privilegiada, presenta zonas climáticas bien definidas con características ambientales y geográficas únicas. Estas particularidades hacen que cada región posea sus propios ecosistemas, existiendo así muchas especies vegetales y animales sin investigar. La población hace uso de estos recursos para tratar diversas dolencias como por ejemplo, Piper peltatum utilizada en caso de mordedura de serpiente. El objetivo del estudio fue determinar si los extractos de esta especie presentaban efectos inhibitorios sobre la hialuronidasa, para lo cual se identificó los metabolitos secundarios presentes mediante el tamizaje fitoquímico, se cuantificó la cantidad de fenoles y flavonoides totales a través de métodos espectrofotométricos y se determinó el porcentaje de inhibición tanto sobre la hialuronidasa bovina como la hialuronidasa presente en el veneno de Naja naja atra y Botrox atrox. Se identificó en P. peltatum alcaloides con potencial actividad antimitótica, cumarinas, terpenos, compuestos fenólicos y flavonoides. La cantidad de fenoles totales fue de 14,49±1,2 mg equivalente de ácido gálico/g extracto seco y 14,53±0,208 mg equivalente de Quercetina/g extracto seco de flavonoides. Respecto a la actividad inhibitoria se concluyó que existe mayor inhibición sobre la hialuronidasa bovina, seguida del veneno de Naja naja atra y no de manera significativa sobre B. atrox. Ecuador is located in a privileged geographical area, it has strongly defined climatic zones with unique environmental and geographical characteristics. These particularities mean that each region has its own ecosystems, so many plant and animal species exist without investigating. The population makes use of these resources to treat various ailments such as Piper peltatum used in case of snakebite. The objective of the study was to determine if extracts of this species has inhibitory effects on hyaluronidase. The secondary metabolites present were identified by phytochemical screening, the amount of phenols and total flavonoids was quantified by spectrophotometric methods, as well as the determination of the inhibition of bovine, Naja naja atra venom and Botrox atrox hyaluronidase. P. peltatum contains alkaloids with potential antimitotic activity, coumarins, terpenes, phenolic compounds and flavonoids. The amount of total phenols was 14.49 ± 1.2 mg gallic acid equivalent / g dry extract and 14.53 ± 0.208 mg Quercetin equivalent /g dry flavonoid extract. Regarding the inhibitory activity, it was concluded that there is greater inhibition on bovine hyaluronidase, followed by Naja naja atra venom and not significantly on B. atrox. Palabras claves: Piper peltatum, hialuronidasa, Naja naja atra, Extracto, Bothrops atrox. Keywords: Piper peltatum, hialuronidase, Naja naja atra, extract, Bothrops atrox.
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20

Cruz, S., R. Veliz, A. Gómez, L. Álvarez, A. Cáceres, J. Morales, M. Apel, and A. Henriquez. "Caracterización Quimica De Los Aceites Esenciales y Extractos De Especies Mesoamericanas Del Género Piper Como Nuevos Recursos Aromáticos." Revista Científica, December 31, 2008, 25–29. http://dx.doi.org/10.54495/rev.cientifica.edicionespecial2008.186.

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La familia Piperaceae comprende 14 géneros y aproximadamente 700 especies, que están distribuidas en las zonas tropicales y subtropicales del mundo. En Guatemala se describen aproximadamente 88 especies de Piper distribuidas en diferentes regiones del país, de las cuales se encuentra muy poca información química y farmacológica. El presente estudio contribuye al estudio químico de las especies aromáticas más importantes del género Piper en Guatemala, Se identificaron 16 especies en 3 departamentos de Guatemala; en Suchitepéquez se encontraron 4 especies (Piper umbellatum, P. oradendrnm, P. patulum y P. jaequemontianum); en Alta Verapaz se encontraron 8 especies (P. geniculatum,R jaequemontianum, P. obliquom, P. variabile, P. phytolaccifoiium, P. shippianum, P. sempervirens y P hispidum) y en Izabal 4 especies (P. peltatum, P donnell smithii, P. fallens y R diandrum). Se obtuvo el aceite esencial de cada especie por hidrodestilación y se calculó su rendimiento. Se realizó la caracterización química de los extractos mediante ensayos macro y semimicro y cromatografía en capa fina determinándose 1a presencia dealcaloides, flavonoides, antraquinonas, saponinas, principios amargos, aceites volátiles y camarinas. Se identificaron los constituyentes de los aceites esenciales por CG-EM, se observó que R phytolaccifoiium fue la especie que presentó mayor número de constituyentes (42), entre los cuales se identificaron mayoritario germacrano D 18%: P.umbellatum (39), presentó como mayoritarios E’-nerolidol 23,4% y P. variabile (36), el cual presentó como mayoritario alcanfor 28.4%, y P. jaequemontianum que presentó linalool 69.4% como mayoritario. un constituyentes interesante en la industria de perfumería.
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Nascimento, Sara Raquel Lavareda, Ana Cristina da Silva Pinto, Sabrina da Fonseca Meireles, Junielson Soares da Silva, Francisco Celio Maia Chaves, and Míriam Silva Rafael. "Isolation of 4-nerolidylcatechol from leaves of Piper peltatum L., and evaluation of larvicidal activity in mosquito vectors, with emphasis on Aedes aegypti (Diptera: Culicidae)." Revista Brasileira de Entomologia 68, no. 2 (2024). http://dx.doi.org/10.1590/1806-9665-rbent-2023-0074.

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22

Hasan, Rusdi, Anggi Yuniarti, and Kasmiruddin Kasmiruddin. "Keanekaragaman Liana di Hutan Pendidikan Universitas Muhammadiyah Bengkulu, Kabupaten Bengkulu Tengah." Jurnal Sains Teknologi & Lingkungan 4, no. 1 (June 25, 2018). http://dx.doi.org/10.29303/jstl.v4i1.70.

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This study aims to determine the species of Liana plants found in Educational Forest of Muhammadiyah University of Centre Bengkulu withinConservation Forest of Bukit Barisan located in Kepahyang Regency of Bengkulu Province. This survey method research was conducted on March-April 2017. Sampling was collected in the plots placed along transect line in the forest which have temperature range from 27–31OC and humidity range 76-87%. The result found that of 20 Liana plants species belong to 9 families. Asteraceae family consist of 1 species of Mikania micrantha, family Araceae consist of 1 species of Pothos scandens, family Convolvulaceae consist of 4 species namely Ipomoea triloba, Ipomoea cairica, Merremia peltata, Merremia vitifolia, family Dioscorea consist of 1 species of Dioscorea hispida, family Fabaceae consist of 2 species of Calopogonium mucunoides, Centrosema pubescens, family Menispermaceae consist of 3 species of Cyclea barbata, Pericampylus glaucus, Tinospora crispa, family Palmae cinsist of 4 species namely Calamus caesius, Calamus manan, Daemonorops sabut, Korthalsia rigida, famili Piperaceae consist of 3 species of Piper betle, Piper nigrum, Piper ornatum, family Schizaeaceae consist of 1 species of Lygodium flexuosum.
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