Bibliografias temáticas / Extractos de plantas

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Literatura científica selecionada sobre o tema "Extractos de plantas"

Autor: Grafiati
Publicado: 4 de junho de 2021
Última modificação: 25 de julho de 2025

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Artigos de revistas sobre o assunto "Extractos de plantas"

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Taborda, Natalia A., Liliana Y. Acevedo, Claudia P. Patiño, Jorge E. Forero, and Albeiro López Herrera. "Actividad antiviral in vitro de extractos de Hura crepitans y Codiaeum variegatum en la replicación de herpes virus bovino tipo-1 y virus de estomatitis vesicular." Revista Colombiana de Ciencias Pecuarias 20, no. 3 (2016): 9. http://dx.doi.org/10.17533/udea.rccp.324147.

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Resumen Hojas de las plantas Hura crepitans y Codiaeum variegatum se recolectaron en la ciudad de Medellín (Colombia), para determinar la actividad biológica (Actividad citotóxica [AC] y antiviral [AAV]) de cuatro extractos de éstas (hexánico, en acetato de etilo, metanólico y acuoso) sobre los virus de Estomatitis Vesicular (VSV) serotipos Indiana y New Jersey y Herpes Virus Bovino tipo-1 cepa Bogotá (BHV-1B). El tamizaje de actividad biológica de los extractos se realizó en monocapas de células BHK-21. Luego los extractos promisorios, pasaron a la fase cuantitativa de AAV por el ensayo de MT
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Ruiz Q., Julio R., and Mirtha Roque A. "Actividad antimicrobiana de cuatro plantas del nor-oriente peruano." Ciencia e Investigación 12, no. 1 (2009): 41–47. http://dx.doi.org/10.15381/ci.v12i1.3387.

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Se investigó la actividad antimicrobiana in vitro de los extractos metanólicos, etanólicos e hidroalcohólicos de cuatro plantas del nor-oriente peruano: Cassia reticulata (planta entera), Ilex guayusa Loes (hojas), Piper lineatum (hojas), y Terminalia catappa (hojas). Las especies fueron recolectadas en el departamento de Cajamarca, excepto Terminalia catappa (Amazonas). La actividad antimicrobiana se evaluó mediante el método de difusión en agar. Los microorganismos utilizados fueron las bacterias Staphylococcus aureus, Staphylococcus epidermidis, Pseudomonas aeruginosa, Bacillus subtilis y E
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Delgadillo Ruiz, Lucía, Rómulo Bañuelos Valenzuela, Olivia Delgadillo Ruiz, Mónica Silva Vega, and Perla Gallegos Flores. "Composición química y efecto antibacteriano in vitro de extractos de Larrea tridentata, Origanum vulgare, Artemisa ludoviciana y Ruta graveolens." Nova Scientia 9, no. 19 (2017): 273. http://dx.doi.org/10.21640/ns.v9i19.1019.

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Introducción: Los extractos de algunas plantas han demostrado tener propiedades antimicrobianas relacionadas a ciertos compuestos químicos como son el timol, carvacrol, limoneno, linalol y terpineno. El objetivo del presente trabajo fue determinar la concentración de estos compuestos en los extractos de Larrea tridentata, Origanum vulgare, Artemisa ludoviciana y Ruta graveolens; así como evaluar su efecto antimicrobiano en Escherichia coli, Acinetobacter baumanii, Pseudomona sp y Staphylococcus aureus.Método: Los extractos se obtuvieron por destilación simple empleando alcohol etílico como sol
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Celaya-Michel, Hernán, Jesús Anaya-Islas, Miguel Ángel Barrera-Silva, et al. "Extractos hidro-etanólicos de plantas comestibles como alternativa para controlar bacterias patógenas, parásitos e insectos en la industria pecuaria." Biotecnia 21, no. 2 (2019): 47–54. http://dx.doi.org/10.18633/biotecnia.v21i2.905.

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En la industria pecuaria es importante mantener al ganado en buen estado de salud para alcanzar niveles adecuados de producción. En la actualidad, el uso de antibióticos para el control de infecciones es limitado, debido a la resistencia de los microorganismos a estos fármacos. Por otro lado, los insecticidas y repelentes de origen sintéticos contienen químicos tóxicos para los animales, el humano y el medio ambiente. Una alternativa es utilizar compuestos químicos naturales derivados de plantas. El objetivo fue evaluar la actividad antimicrobiana, insecticida y repelente de extractos hidro-et
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Anza Cruz, Héctor Guillermo, Sandra Isabel Ramírez Gonzále, Orlando López Báez, and Saul Espinoza Zaragoz. "Fitotoxicidad de extractos vegetales en la germinación de semillas y desarrollo inicial de plantas mono y dicotiledóneas." Revista Espacio I+D Innovación más Desarrollo 12, no. 32 (2023): 118–40. http://dx.doi.org/10.31644/imasd.32.2023.a07.

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El control de malezas es un factor importante en la producción de cultivos, pero se hace necesario generar alternativas menos contaminantes y más sostenibles, por lo que se planteó una investigación exploratoria para deter-minar la actividad fitotóxica de extractos vegetales de Rosmarinus officinalis, Raphanus sativus, Origanum vulgare, Capsicum annuum y Allium sativum en la germinación de semillas y plantas de especies monocotiledóneas (Zea mays) y dicoltiledoneas (Phaseolus vulgaris); se utilizaron con cada planta dos formas de extracción (licuado y presurización). En la primera etapa se eva
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Rodriguez Conterón, Oscar, and Orestes López Hernández. "EXTRACTOS DE PLANTAS MICROENCAPSULADAS CON POTENCIAL ACTIVIDAD ANTIVIRAL: UNA REVISION GENERAL." Investigación y Desarrollo 14, no. 1 (2021): 47. http://dx.doi.org/10.31243/id.v14.2021.1326.

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El uso de compuestos activos de plantas ha generado una alternativa natural en torno a las afecciones que involucran la salud humana. Un extracto de plantas es una mezcla compleja de moléculas bioactivas que presenta propiedad antioxidante, antiviral, antimicrobiana, antiparasitaria, entre otras. A pesar que un reto prominente para el uso de extractos herbales es el uso de solventes orgánicos pues dificultan su formulación y administración directa a personas, esto podría ser solucionado ya que investigaciones recientes señalan a la microencapsulación como una tecnología alentadora en la admini
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Torres-Barajas, Ana Lucía, Karla Daniela Salas-Baéz, Rosa Isela Chávez-Gómez, et al. "Actividad tripanocida de cinco plantas latinoamericanas." Revista de Biología Tropical 72, no. 1 (2024): e54026. http://dx.doi.org/10.15517/rev.biol.trop..v72i1.54026.

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Introducción: La enfermedad de Chagas es causada por un parásito hemoflagelado llamado Trypanosoma cruzi, distribuido principalmente en América Latina. Países como México se ven afectados por este parásito, y se estima que un millón de personas padecen la enfermedad. Actualmente, el tratamiento se centra en el benznidazol y el nifurtimox, que, cuando se aplican en la fase aguda, son efectivos, pero no en la fase crónica y son de difícil acceso. Por lo tanto, se buscan alternativas que puedan proporcionar nuevos tratamientos; una opción son las plantas, ya que producen metabolitos secundarios c
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Velasco Lezama, Rodolfo, Sara Beatriz Herrera Solís, Rafaela Tapia Aguilar, Janeth Ramírez Calvo, Reyna Cerón Ramírez, and Jorge Santana Carrillo. "Efecto de Cinco Plantas del Género Urtica sobre el Crecimiento de Bacterias de Importancia Clinica." Ciencia Latina Revista Científica Multidisciplinar 8, no. 3 (2024): 11088–105. http://dx.doi.org/10.37811/cl_rcm.v8i3.12265.

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Urtica dioica, Urtica urens y Urtica mexicana, son similares morfológicamente y son comercializadas como la misma planta pero se desconocen las propiedades antibacterians de U, mexicana. Se evaluó actividad antibacteriana de estas plantas y de U. dioica L variedad Angustifolia, comparándola con la de Urtica dioica L. Las plantas se colectaron en en el Estado de México, la variedad Angustifolia fue adquirida en el mercado. Las hojas secas se molieron y maceraron 48 h en; Hexano, diclorometano, metanol y agua. Se determinó la concentración mínima inhibitoria (CMI) mediante el método de Resazurin
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Navas-Flores, Vinicio, Ximena Chiriboga-Pazmiño, Patricio Miño-Cisneros, and Carmen Luzuriaga- Quichimbo. "Estudio fitoquímico y toxicológico de plantas nativas del oriente ecuatoriano." CIENCIA UNEMI 14, no. 35 (2021): 26–36. http://dx.doi.org/10.29076/issn.2528-7737vol14iss35.2021pp26-36p.

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Existen muchas plantas nativas de la amazonia cuyas cualidades fitoquímicas, toxicológicas y sus posibles efectos terapéuticos no han sido estudiados. Nuestro objetivo fue encontrar en el oriente ecuatoriano plantas que contengan látex y resinas, para estudiar preliminarmente sus características fitoquímicas y toxicológicas con el fin de utilizarlas como embolizantes en el tratamiento de algunas enfermedades. Inicialmente, se buscó en la literatura algunas plantas ubicadas en la región amazónica ecuatoriana que contienen látex o resinas. Se identificaron 33 plantas de las cuales 5 plantas fuer
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Mayo Tadeo, Rosa Iris, Mónica Espinoza Rojo, Javier Jiménez Hernández, Flaviano Godinez Jaimes, Agustín Damián Nava, and Dolores Vargas Alvarez. "La Poliextractos de plantas medicinales vs bacterias asociadas a infecciones respiratorias agudas (IRAS)." Revista Mexicana de Ciencias Agrícolas 11, no. 5 (2020): 1171–77. http://dx.doi.org/10.29312/remexca.v11i5.1595.

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El presente trabajo de investigación tuvo como objetivo el modelaje para la elaboración de la formulación de un jarabe a base de extractos vegetales de bugambilia, eucalipto, canela, caléndula e ítamo para inhbir el crecimientio de S. aureus y S. pyogenes, bacterias asociadas con las infecciones respiratorias. Se determinó por cromatografía la presencia los metabolitos secundarios en los extractos metanólicos de cada especie, así como también se evalúo la actividad antibacteriana de los extractos y de los jarabes y su capacidad antioxidante. Se encontró que el extracto de eucalipto es el mejor
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Teses / dissertações sobre o assunto "Extractos de plantas"

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Mondragón, Tarrillo Iris Giovana. "Estudio farmacognóstico y bromatológico de los residuos industriales de la extracción del aceite de Plukenetia volubilis L. (Sacha inchi)." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2009. https://hdl.handle.net/20.500.12672/1502.

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La producción de biomasa residual, como consecuencia de las actividades humanas constituye fuente de energía y materiales desaprovechados con grave peligro para la biosfera y daño a sus recursos naturales. Dentro de la composición de residuos sólidos, se encuentran en mayor proporción los de materia orgánica y dentro de estos se encuentran los residuos producidos por la industria aceitera y de granos oleosos que se incrementa en estos últimos años. El presente trabajo de investigación realizó un estudio, farmacognóstico, bromatológico y toxicológico de los residuos industriales de la extracció
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Ernesto, Miguel Mussa. "Composição química de extractos da Momordica balsamina cultivada em Moçambique." Master's thesis, Universidade de Aveiro, 2006. http://hdl.handle.net/10773/4863.

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Mestrado em Química de Produtos Naturais e Alimentos<br>A Momordica balsamina, espécie da família das Cucurbitaceae, é uma planta herbácea trepadeira, ou rasteira, perene, espalhada por quase toda a África, Ásia e algumas regiões tropicais da Austrália e América. Esta espécie cresce em terrenos de cultivo das regiões tropical e subtropical, e estendendo-se até às regiões temperadas dos hemisférios sul e norte. Devido ao seu valor nutricional aquela planta é muito utilizada pelas populações nativas, em particular na região austral da África, essencialmente como constituinte alimentar; sã
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Venegas, Romero Valentina Inés. "Efecto redox de diferentes extractos herbales sobre biomoléculas : lípidos de membrana y tioles proteícos." Tesis, Universidad de Chile, 2012. http://www.repositorio.uchile.cl/handle/2250/116709.

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Memoria para optar al título de Químico Farmacéutico<br>Las plantas poseen diferentes tipos de antioxidantes, entre ellos compuestos polifenólicos y azufrados; entre estos últimos, GSH y cisteína, principales antioxidantes no enzimáticos de la célula animal. La capacidad antioxidante de los preparados herbales depende de numerosas variables, entre ellas, la parte de la planta seleccionada y el proceso de extracción. En este trabajo se analizó la actividad antioxidante de diferentes extractos herbales de los cuales se recibió sólo los nombres que mencionamos a continuación: Gel Aloe Vera, Phyto
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PARRA, GARCIA ARMANDO MANGLORIO 58327, and GARCIA ARMANDO MANGLORIO PARRA. "Evaluación de extractos de plantas en la nutrición y salud de animales herbívoros." Tesis de doctorado, Universidad Autónoma del Estado de México, 2019. http://hdl.handle.net/20.500.11799/104517.

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Para la nutrición animal, existe una gran variedad de plantas y árboles de los cuales poco se habían estudiado: Y por ello en varias universidades como la Universidad Autónoma del Estado de México se tienen varios proyectos de investigación de interés científico; por ejemplo: en la Facultad de Medicina Veterinaria y Zootecnia se han hecho estudios in vitro de extractos de plantas en las siguientes especies: Sauce (Salix Babylonica), Moringa (Moringa oleífera), Neem (Azadirachta indica). La adaptación de árboles, arbustos y plantas puede incrementar la producción animal y disminuir la emisión
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Silva, Vera Armanda Moreira da. "Acção de extractos de Pterospartum tridentatum em ratinhos expostos a CCI4." Master's thesis, Universidade de Aveiro, 2009. http://hdl.handle.net/10773/897.

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Mestrado em Biologia Molecular e Celular<br>Pterospartum tridentatum (L.) WillK., leguminosa que cresce espontaneamente em Portugal, é usada na medicina popular, no tratamento de irritações de garganta e em misturas herbais de várias plantas para o tratamento da diabetes. A formação de radicais livres que causam stress oxidativo pode constituir a base de muitas doenças. Por esta razão, o uso de ervas ou de compostos naturais delas isoladas é cada vez mais comum, com vista aos seus efeitos benéficos. O objectivo do presente trabalho consistiu em estudar os efeitos histopatológicos de extractos
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Santos, Isis Sofia Norinho. "Avaliação do potencial antioxidante dos compostos fenólicos de extractos de plantas da flora portuguesa." Bachelor's thesis, [s.n.], 2011. http://hdl.handle.net/10284/2460.

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Trabalho apresentado à Universidade Fernando Pessoa como parte dos requisitos para a obtenção do grau de Licenciado em Ciências Farmacêuticas<br>Alguns extractos de plantas são ricos em substâncias com poder antioxidante, como os compostos fenólicos, os quais desempenham um papel importante na homeostase celular dos vegetais e do Homem que as utiliza. A medicina popular portuguesa é muito rica em terapias desenvolvidas com base em extractos de partes de plantas, entre elas, as folhas de Castanea sativa e de Mentha piperita, ou seja, castanheiro e menta, respectivamente. Ambos os exemplare
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Avilés, Ochante Rosa Natalie. "Estudio químico y biológico de extractos de la hoja de tara (Caesalpinia spinosa)." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2018. https://hdl.handle.net/20.500.12672/10894.

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Estudia la fitoquímica de los extractos de las hojas de la tara (Caesalpinia spinosa), cuantifica los principales metabolitos secundarios (polifenoles, taninos) y determina la actividad antioxidante, antimicrobiana, y cicatrizante de dichos extractos. El conocimiento de estos análisis será trascendental para evaluar su potencial aplicación como cicatrizante en el tratamiento de quemaduras. Los extractos fueron conseguidos a partir de las hojas de tara, utilizando etanol, metanol y una mezcla hidroalcohólica como solventes, a distintas temperaturas. En el análisis fitoquímico se encontró tanino
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Verdeguer, Sancho Mercedes María. "FITOTOXICIDAD DE ACEITES ESENCIALES Y EXTRACTOS ACUOSOS DE PLANTAS MEDITERRÁNEAS PARA EL CONTROL DE ARVENSES." Doctoral thesis, Universitat Politècnica de València, 2011. http://hdl.handle.net/10251/13827.

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El hombre, desde que puso en práctica la domesticación y cultivo de plantas, a principios del Neolítico, ha ido incorporando mejoras de forma paulatina, a fin de conseguir el máximo rendimiento de la tierra. Introdujo para ello, y de forma progresiva, el abonado, la irrigación y el control de las plagas, enfermedades y arvenses. Las prácticas, basadas fundamentalmente en operaciones manuales, fueron muy rudimentarias hasta bien entrado el siglo XX. Con el gran desarrollo de los productos químicos para uso agrícola, a partir de los años 40, se produce un gran incremento en la productividad agra
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Torres, Chati Jane. "Evaluación de la actividad antimicrobiana de extractos de Luma chequen (Molina) A. Gray "Arrayán" frente a patógenos aislados de hemocultivos del Hospital Nacional Guillermo Almenara Irigoyen, Lima - Perú." Bachelor's thesis, Universidad Nacional Mayor de San Marcos, 2014. https://hdl.handle.net/20.500.12672/3605.

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Ante el incremento alarmante de la resistencia antimicrobiana, en la actualidad a nivel mundial se viene explorando y valorando el uso de productos naturales como fuente de nuevos y variados agentes antimicrobianos. El objetivo principal del presente trabajo fue evaluar la actividad antimicrobiana de extractos orgánicos de Luma chequen “arrayán” frente a patógenos bacterianos (Escherichia coli, Klebsiella pneumoniae, Staphylococcus epidermidis, Staphylococcus aureus) y fúngicos (Candida albicans, Candida tropicalis, Candida parapsilosis) aislados de hemocultivos y cepas controles ATCC (Escheri
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Magro, Ana Maria da Costa Aldir. "Avaliação das actividades fungistática e fungicida de extractos de plantas e seus constituintes em produtos agrícolas secos armazenados." Doctoral thesis, ISA, 2009. http://hdl.handle.net/10400.5/2817.

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Doutoramento em Biologia - Instituto Superior de Agronomia<br>Com este trabalho pretendeu-se contribuir para o conhecimento da diversidade de fungos que podem ser identificados em Portugal no arroz armazenado e para a avaliação das potencialidades fungicidas des espécies vegetais Daphne gnidium, Laurus nibilis, Mentha pullegium, Syzygium aromaticum e Zingiber officinale no controlo dos fungos do armazenamento.
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Livros sobre o assunto "Extractos de plantas"

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N, Golovkin B., ред. Biologicheski aktivnye veshchestva rastitelʹnogo proiskhozhdenii͡a︡. "Nauka", 2001.

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Houghton, Peter J. Laboratory handbook for the fractionation of natural extracts. Chapman & Hall, 1998.

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Hansen, Clark. Grape seed extract: Procyanidolic oligomers (PCO). Healing Wisdom Publications, 1995.

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Filho, Valdir Cechinel. Plant bioactives and drug discovery: Principles, practice, and perspectives. John Wiley & Sons, 2011.

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D, Sarker Satyajit, and Maruyama Yūji, eds. Magnolia: The genus Magnolia. Taylor & Francis, 2002.

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B, Bastyr John, ed. Plant medicine in practice: Using the teachings of John Bastyr. Churchill Livingstone, 2003.

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Brinker, Francis J. The toxicology of botanical medicines. 2nd ed. National College of Naturopathic Medicine, 1986.

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Brinker, Francis J. The toxicology of botanical medicines. 3rd ed. Electic Medical Publications, 2000.

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Brinker, Francis J. The toxicology of botanical medicines. 2nd ed. Eclectic Institute, 1989.

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Vignes, Alain. Extractive metallurgy: Processing operations and routes. ISTE, 2011.

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Capítulos de livros sobre o assunto "Extractos de plantas"

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Viaene, Nicole, Johannes Hallmann, and Leendert P. G. Molendijk. "Methods for nematode extraction." In Techniques for work with plant and soil nematodes. CABI, 2021. http://dx.doi.org/10.1079/9781786391759.0012.

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Abstract Nematodes can be present in different matrices. This chapter describes several methods to extract nematodes from soil and plant parts. It is crucial that an appropriate method is chosen for the purpose of the research as different types of nematodes, and even different nematode stages, are extracted depending on the method. Factors to consider for choosing the optimal extraction method are the extraction efficiency of the method, the maximum sample size that can be analysed and costs of the extraction equipment. In addition, water consumption, labour and the time needed before nematod
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Viaene, Nicole, Johannes Hallmann, and Leendert P. G. Molendijk. "Methods for nematode extraction." In Techniques for work with plant and soil nematodes. CABI, 2021. http://dx.doi.org/10.1079/9781786391759.0002.

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Abstract Nematodes can be present in different matrices. This chapter describes several methods to extract nematodes from soil and plant parts. It is crucial that an appropriate method is chosen for the purpose of the research as different types of nematodes, and even different nematode stages, are extracted depending on the method. Factors to consider for choosing the optimal extraction method are the extraction efficiency of the method, the maximum sample size that can be analysed and costs of the extraction equipment. In addition, water consumption, labour and the time needed before nematod
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Bährle-Rapp, Marina. "exotic plants extract." In Springer Lexikon Kosmetik und Körperpflege. Springer Berlin Heidelberg, 2007. http://dx.doi.org/10.1007/978-3-540-71095-0_3840.

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Stahl, Egon, Karl-Werner Quirin, and Dieter Gerard. "Methods, Apparatus and Plants." In Dense Gases for Extraction and Refining. Springer Berlin Heidelberg, 1988. http://dx.doi.org/10.1007/978-3-642-72892-1_3.

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Gómez, Noelia, Sandy Gavilanes, Inés Malo, and Mónica Espadero. "In vitro Evaluation of Antimicrobial Activity from the Methanolic Extracts of Taraxacum officinale and Melissa officinalis on Staphylococcus aureus." In Lecture Notes in Networks and Systems. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-87065-1_23.

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Abstract The use of plants has been increasing by the presence of bioactives, which is an opportunity in the creation of products such as medicines, food and cosmetics. Taraxacum officinale (Dandelion) and Melissa officinalis (Toronjil), are cosmopolitan species with great therapeutic potential, traditionally used for their anti-inflammatory, antioxidant and antimicrobial activity. Therefore, this research evaluates the antimicrobial activity of the methanol extracts of Taraxacum officinale and Melissa officinalis on Staphylococcus aureus using in vitro tests. Analyzes of secondary metabolites
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Sadashiv Vadke, Vivekanand. "Utility Requirement of Oil Extraction Plants." In Principles of Vegetable Oil Extraction. CRC Press, 2023. http://dx.doi.org/10.1201/9781003309475-21.

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James, Peet. "Information Extraction." In Verification Plans. Springer US, 2004. http://dx.doi.org/10.1007/978-1-4615-0473-3_7.

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Pacheco, Patricia, Dévora Carrión, Sandy Gavilanes, and Mónica Espadero. "In vitro Antibacterial Activity of Ethanolic and Acetonic Extracts of Curcuma longa Against Propionibacterium acnes (Cutibacterium acnes)." In Lecture Notes in Networks and Systems. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-87065-1_27.

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Abstract Throughout history, plants have been indispensable in the development of society due to their high content of bioactive substances, which are used in different industries such as food, pharmaceutical, and cosmetics. Curcuma longa is a perennial species that belongs to the Zingiberaceae family, which is used for therapeutic purposes due to its anti-oxidant, anti-inflammatory and antibacterial properties, among others. This research evaluates the antibacterial activity of ethanolic and acetonic extracts of Curcuma longa against Propionibacterium acnes, recently renamed Cutibacterium acn
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MacTavish-West, Hazel. "Native Australian Plant Extracts: Cosmetic Applications." In Australian Native Plants. CRC Press, 2017. http://dx.doi.org/10.1201/b20635-21.

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Kistler, Logan. "Ancient DNA Extraction from Plants." In Methods in Molecular Biology. Humana Press, 2011. http://dx.doi.org/10.1007/978-1-61779-516-9_10.

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Trabalhos de conferências sobre o assunto "Extractos de plantas"

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Caraba, Marioara Nicoleta, Valeriu Caraba, Gabi Dumitrescu, Elena Pet, and Roxana Popescu. "ANTIMICROBIAL POTENTIAL OF METHANOLIC AND N-HEXANE EXTRACTS OF VISCUM ALBUM." In SGEM International Multidisciplinary Scientific GeoConference 24. STEF92 Technology, 2024. https://doi.org/10.5593/sgem2024/6.1/s25.19.

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Plants are sources of compounds with medicinal potential, an impressive number of medicines have in their composition compounds isolated from natural sources, many of them being used since ancient times, in traditional medicine. Aromatic and medicinal plants are sources of various nutrients and non-nutritive molecules, many of which exhibit antimicrobial and antioxidant properties. V. album extracts have a complex chemical composition, some of the identified compounds being responsable for their antibacterial and antifungal potential. The chemical composition of V. album extracts differs depen
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Davis, Guy D., J. Anthony von Fraunhofer, Lorrie A. Krebs, and Chester M. Dacres. "The Use of Tobacco Extracts as Corrosion Inhibitors." In CORROSION 2001. NACE International, 2001. https://doi.org/10.5006/c2001-01558.

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Abstract Extracts of tobacco plants show considerable promise as environmentally acceptable corrosion inhibitors. Use of extracts obtained from stems and twigs, as well as leaves, show significant corrosion inhibition during immersion of aluminum or steel in saline solutions and immersion of steel in strong pickling acids. In several cases, the inhibition is greater than that provided by chromates and is provided over a wide range of extract solution concentrations. When steel was treated in sulfuric acid with tobacco extract to remove mill scale and rust, the steel emerged bright and shiny. W
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Stein, J. L., T. Chaturvedi, T. L. Skovhus, and M. H. Thomsen. "Effect of Antimicrobial Halophilic Plant Extracts on Microbiologically Influenced Corrosion (MIC)." In CONFERENCE 2022. AMPP, 2022. https://doi.org/10.5006/c2022-18089.

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Abstract Offshore oil production is susceptible to internal corrosion, which can occur through microbiologically influenced corrosion (MIC) caused by biofilm-forming sulfate-reducing prokaryotes (SRP). The oil and gas industry relies primarily on biocides and mechanical cleaning to mitigate MIC. Halophytes (salt-tolerant plants) produce a variety of bioactive compounds, some of which have antimicrobial activity. MIC was studied on UNS S31600 stainless steel coupons in flasks with three extract types, from four halophytes, at three different concentrations. Flasks were inoculated batch-wise wit
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Ancelmo Macedo, Antonio Lucas, Robson F. S. Navegantes, Mariana M. Marques, Antônio Victor de Castro Braga, Dalva C. B. do Lago, and Lilian F. de Senna. "Coffee Leaves Dried Extracts as Green Inhibitors for Carbon Steel in Acid Medium." In LatinCORR 2023. AMPP, 2023. https://doi.org/10.5006/lac23-20464.

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Corrosion inhibitors are widely used to mitigate the corrosion process of carbon steel in acidic media. However, there is a growing concern about the toxicity, biodegradability, and bioaccumulation of corrosion inhibitors released into the environment. The need for environmental preservation requires the immediate replacement of toxic inhibitors with less aggressive ones. Extracts from plants and other natural wastes became interesting candidates for potential green corrosion inhibitors. The use of natural products as corrosion inhibitors for carbon steel, mainly in acidic environments, has be
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Shavliashvili, L., G. Kuchava, E. Shubladze, M. Tabatadze, and S. Iram. "PHYTOREMEDIATION OF ARSENIC CONTAMINATED SOILS OF THE AMBROLAURI MUNICIPALITY." In 24th SGEM International Multidisciplinary Scientific GeoConference 2024. STEF92 Technology, 2025. https://doi.org/10.5593/sgem2024v/3.2/s12.29.

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Phytoremediation technology is environmentally friendly and inexpensive to clean soils of harmful toxins. The study aims to introduce phytoremediation of arsenic in the Racha-Lechkhumi and Kvemo Svaneti regions to restore soil fertility. For this study, three plants, Amaranthus gangeticus, Chenopodium album and Helianthus annuus, were selected for the accumulation and translocation of Arsenic from the contaminated soil. The seeds of selected plants were treated with the bioactivator Biorag to increase the plant's green mass. Plants were sown in May and harvested in August and October. Plants w
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Dadi, Maichol, Alessandra Lumini, Annalisa Franco, and Giuseppe Sangiorgi. "Deep learning for Root System Extraction from Barley Plants." In 2024 14th International Conference on Pattern Recognition Systems (ICPRS). IEEE, 2024. http://dx.doi.org/10.1109/icprs62101.2024.10677835.

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Lantgios, Iza, Logan Williams, and Daniel Mikkelson. "Assessment of the Thermal Extraction Capabilities of the HYBRID Modelica Models." In 2024 International Congress on Advances in Nuclear Power Plants (ICAPP). American Nuclear Society, 2024. http://dx.doi.org/10.13182/t130-44245.

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Wijesekara, Anupaja, S. R. M. M. Lanka Kumari, and Jagath Kasturiarachchi. "A Study on Anti bacterial Properties of Costus speciosus." In SLIIT INTERNATIONAL CONFERENCE ON ADVANCEMENTS IN SCIENCES AND HUMANITIES. Faculty of Humanities & Sciences, SLIIT, 2024. https://doi.org/10.54389/rrmm7674.

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Anti biotic resistant bacteria have posed a serious threat to world health in recent years, forcing the investigation of alternate sources for anti bacterials. Higher plants are a key source of medicinal compounds. The objective of this study was to evaluate the anti bacterial properties of C. speciosus against gram-negative E. coli and gram-positive Staphylococcus aureus, to explore its potential as a natural alternative to conventional anti bioti cs. Leaves, stems, and rhizomes of C. speciosus were extracted using hexane, methanol, and water as solvents with reflux, sonication and maceratio.
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Grinco, Marina, Alexandru Marina, Natalia Birca, et al. "Pomolic acid from apple pomace: quantitative determination by heteronuclear two-dimentional QNMR and preparative isolation." In Scientific seminar with international participation "New frontiers in natural product chemistry". Institute of Chemistry, Republic of Moldova, 2023. http://dx.doi.org/10.19261/nfnpc.2023.ab14.

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Pomolic acid (PA) is a pentacyclic triterpenic acid isolated from apples by Brieskorn and Wunderer in 1967 [1]. Its highly relevant biological activity profile came recently into focus and there have been many reports on the content of PA in different plant sources [2]. Quite surprisingly, the general perception of low PA content in plants persists and this information hinders its broader investigation as a compound of pharmaceutical and nutraceutical potential. The main aim of the current work was quantitative determination of pomolic acid in apple pomace by two-dimensional heteronuclear NMR
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Berechet, Mariana Daniela, Demetra Simion, Maria Stanca, and Cosmin Andrei Alexe. "Protein Extracts from Fish Head as Natural Fertilizer for Corn Plants." In The 9th International Conference on Advanced Materials and Systems. INCDTP - Leather and Footwear Research Institute (ICPI), Bucharest, Romania, 2022. http://dx.doi.org/10.24264/icams-2022.iv.1.

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The amino acid composition in the hydrolysates of fish proves to be a most promising source of protein. Two extracts from fish by-products (P1, from the head and fins of sturgeon and P2, from the cartilage of sturgeon head and fins) were obtained as liquids that were dried at 40°C. Liquid extracts were characterized physico-chemically (dry matter 3.86% and 4.25%, protein content 1.44% and 3.25%), and particle size (247nm, 94% and 4148nm, 65% majority populations for P1 and P2) and zeta potential (-27.4mV and -15.8mV) were measured. The smaller particle size for the P1 extract led to its choice
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Relatórios de organizações sobre o assunto "Extractos de plantas"

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Landolt, Peter, Ezra Dunkelblum, Robert Heath, and Moshe Kehat. Host Plant Kairomonal Effects on Heliothis Mate-Finding Behavior. United States Department of Agriculture, 1993. http://dx.doi.org/10.32747/1993.7613016.bard.

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We investigated the possible attraction of species of Helicoverpa and Heliothis to host plant odors and to male pheromone as a prelude to a larger investigation of host chemical effects on moth sexual and reproductive behavior. Both sexes of H. armigera and H. peltigera were attracted to particular host plants or host plant extracts. Heliothis virescens was also found to be attracted to a flowering shrub it may use as a nectar source. Unmated females of H. armigera and H. peltigera were attracted to live males and to a male pheromone extract prepared from exposed filter papers in cages of male
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Fluhr, Robert, and Maor Bar-Peled. Novel Lectin Controls Wound-responses in Arabidopsis. United States Department of Agriculture, 2012. http://dx.doi.org/10.32747/2012.7697123.bard.

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Innate immune responses in animals and plants involve receptors that recognize microbe-associated molecules. In plants, one set of this defense system is characterized by large families of TIR–nucleotide binding site–leucine-rich repeat (TIR-NBS-LRR) resistance genes. The direct interaction between plant proteins harboring the TIR domain with proteins that transmit and facilitate a signaling pathway has yet to be shown. The Arabidopsis genome encodes TIR-domain containing genes that lack NBS and LRR whose functions are unknown. Here we investigated the functional role of such protein, TLW1 (TI
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Farazi, Mena, Michael Houghton, Margaret Murray та Gary Williamson. Systematic review of the inhibitory effect of extracts from edible parts of nuts on α-glucosidase activity. INPLASY - International Platform of Registered Systematic Review and Meta-analysis Protocols, 2022. http://dx.doi.org/10.37766/inplasy2022.8.0061.

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Review question / Objective: The aim of this review is to examine inhibitory effect of functional components in extracts from edible nuts on α-glucosidase activity. At the end of this review the following questions will be addressed by summarizing data of in-vitro studies: which nut extract has the strongest inhibitory effect? Which functional component (e.g. polyphenols) has the strongest inhibitory effect against α-glucosidase? Are there any differences between inhibition of α-glucosidase from different sources (e.g. yeast and mammalian)? Condition being studied: Any papers looking at inhibi
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Paterek, J. Robert. L51963 Environmental Benign Mitigation of Microbiologically Influenced Corrosion (MIC). Pipeline Research Council International, Inc. (PRCI), 2002. http://dx.doi.org/10.55274/r0011299.

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The objective is to develop and evaluate environmental benign agents or products that are effective in the prevention, inhibition, and mitigation of microbially influenced corrosion (MIC) on the internal surfaces of metallic natural gas pipelines. The goal is one or more products that can be applied to maintain the structure and dependability of the natural gas infrastructure. The technical approach for this year has been to evaluate a number of methods to fractionate and concentrate the components found in the pepper extracts. The separation methods considered include size exclusion chromatog
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Kupina, Steve, Mark Kelm, Maria Monagas, and STEFAN GAFNER. Grape Seed Extract Laboratory Guidance Document. ABC-AHP-NCNPR Botanical Adulterants Prevention Program, 2019. http://dx.doi.org/10.59520/bapp.lgd/dozo2637.

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Grape Seed Extract (GSE) has received acceptance almost globally as an ingredient for human consumption. It is one of the more widely used botanical extracts, due to increasing scientific findings supporting health benefits. However, it remains a specialty item relative to global commodities. In the United States, GSE has ranked among the top 20 best-selling dietary supplements in the Food, Drug and Mass Market channel. The motivation behind purposeful adulteration in commercial products is financial gain (also known as economically motivated adulteration) and to increase the concentration in
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Lam, W. W., R. J. Mikula, C. Payette, K. Flint, and V A Munoz. Froth sampling from extraction plants. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1992. http://dx.doi.org/10.4095/305302.

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Reisch, Bruce, Avichai Perl, Julie Kikkert, Ruth Ben-Arie, and Rachel Gollop. Use of Anti-Fungal Gene Synergisms for Improved Foliar and Fruit Disease Tolerance in Transgenic Grapes. United States Department of Agriculture, 2002. http://dx.doi.org/10.32747/2002.7575292.bard.

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Original objectives . 1. Test anti-fungal gene products for activity against Uncinula necator, Aspergillus niger, Rhizopus stolonifer and Botrytis cinerea. 2. For Agrobacterium transformation, design appropriate vectors with gene combinations. 3. Use biolistic bombardment and Agrobacterium for transformation of important cultivars. 4. Characterize gene expression in transformants, as well as level of powdery mildew and Botrytis resistance in foliage of transformed plants. Background The production of new grape cultivars by conventional breeding is a complex and time-consuming process. Transfer
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Barrows, Louis R. In-Vitro Cytotoxicity Screening of Plant Extracts. Defense Technical Information Center, 2001. http://dx.doi.org/10.21236/ada396772.

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Barrows, Louis R. In-Vitro Cytotoxicity Screening of Plant Extracts. Defense Technical Information Center, 2002. http://dx.doi.org/10.21236/ada410231.

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Barrows, Louis R. In-Vitro Cytotoxicity Screening of Plant Extracts. Defense Technical Information Center, 2003. http://dx.doi.org/10.21236/ada417374.

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