Base de dados : LILACS
Pesquisa : B01.206 [Categoria DeCS]
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Id: biblio-1046676
Autor: Nikiforov, Andrey Igorevich; Oleynikova, Elena Mikhaylovna; Bagdasarian, Aleksandr Seregeevich; Mironova, Olga Yurievna; Mishurova, Olga Ivanovna.
Título: Medical and social legal aspects of the use of hydrophyte plants for food
Fonte: Prensa méd. argent;105(9 especial):582-588, oct 2019. fig.
Idioma: en.
Resumo: The species diversity of hydrophytes suitable for human consumption and the possibility of their introduction into the practice of organic farming and sustainable polyculture are explored in the article. The economic and environmental potential of shallow freshwater areas and waterlogged areas are discussed from the perspective of sustainable agriculture. The possibility of using some hydrophyte plants for food and drugs is indicated. The necessity of using the practice of traditional nature management by the native population in relation to water and near-water food plants is mentioned. The relevant issues of providing the growing population of the Earth with food and technical plant raw materials from hydrophytes are discussed. It has been established that a necessary condition for the operation of the market for wild-growing medicinal hydrophytes in accordance with the concept of sustainable development is its efficient legal regulation at all levels.
Descritores: Plantas Comestíveis
Plantas Medicinais
Consumo de Alimentos
Flora Aquática
Criptófitas
Indústria Agropecuária/legislação & jurisprudência
Agricultura Orgânica/economia
Responsável: AR392.1 - Biblioteca


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Id: lil-646528
Autor: Guevara, Miguel; Bastardo, Leandro; Cortez, Roraysi; Arredondo-Vega, Bertha; Romero, Lolymar; Gómez, Patricia.
Título: Pastas de Rhodomonas salina (Cryptophyta) como alimento para Brachionus plicatilis (Rotifera)
Fonte: Rev. biol. trop;59(4):1503-1515, Dec. 2011. graf, tab.
Idioma: es.
Resumo: Rhodomonas salina (Cryptophyta) pastes as feed for Brachionus plicatilis (Rotifera). Rotifers are an important live feed for first feeding larvae of many fish species. The use of concentrated algae cells in the mass culture of the rotifer Brachionus plicatilis (Brachionidae) has opened new horizons for research on this organism. Pastes of Rhodomonas salina (Pyrenomonadaceae) obtained either by centrifugation or flocculation with chitosan were preserved, with or without vitamin C, at -20°C for four weeks and were evaluated biochemically (proteins, lipids, pigments and fatty acids contents) and subsequently, were used to feed the rotifer Brachionus plicatilis at a ratio of 25mg/L/day. Four different microalgae pastes were prepared: (1) centrifuged and preserved with vitamin C (CV), (2) centrifuged and preserved without vitamin C (C), (3) flocculated and with vitamin C (FV) and (4) flocculated without vitamin C (F). All treatments showed similar contents of proteins and total lipids with respect to control culture (a fresh culture of R. salina), with mean values of 40.0±2.32% and 12.0±1.45%, respectively. The pheophytin a/chlorophyll a ratio, a general indicator of the chemical status of microalgal concentrates, was similar (0.09-0.11) between centrifuged pastes and control culture, but was found to be higher in flocculated pastes (1.28-1.48). The fatty acid profile varied with respect to the control culture, mainly in the proportion of the essential polyunsaturated fatty acids (PUFAs): eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA). Total PUFAs, EPA and DHA contents were statistically similar between centrifuged pastes and control culture (PUFAs: 47%, EPA: 4% and DHA: 4.7%), whereas values obtained for flocculated pastes were significantly lower. The rotifers grew equally well when fed with centrifuged pastes or control culture (maximum density: 320rotifers/mL; instantaneous growth rate: 0.23rotifers/day, fecundity: 1.49eggs/female and productivity: 43x103rotifers/L/day. No significant effect of vitamin C was found when used as a paste preservative. We concluded that centrifugation is an effective harvesting method, and that freezing to -20ºC for four weeks (no vitamin added), may help maintain the nutritional quality of R. salina paste, similar to fresh microalgae and can be offered to Brachionus plicatilis. Rev. Biol. Trop. 59 (4): 1503-1515. Epub 2011 December 01.

Pastas de Rhodomonas salina, obtenidas mediante centrifugación y floculación con quitosano y preservadas con o sin vitamina C, a -20°C fueron evaluadas bioquímicamente y proporcionadas como alimento al rotífero Brachionus plicatilis. Las pastas microalgales: (1) centrifugada y con vitamina C (CV), (2) centrifugada y sin vitamina C (C), (3) floculada y con vitamina C (FV) y (4) floculada y sin adición de vitamina C (F); mantuvieron sus contenidos de proteínas y lípidos totales similares al cultivo control, con valores de 40.0±2.32% y 12.0±1.45%, respectivamente. La relación feofitina a/clorofila a fue similar (0.09-0.11) entre las pastas centrifugadas y el cultivo control, pero mayor en las pastas floculadas (1.28-1.48). Las pastas centrifugadas presentaron porcentajes de PUFAs totales, EPA y DHA similares al cultivo control (PUFAs: 47%, EPA: 4% y DHA: 4.7%) y superiores al de las pastas floculadas. Las pastas obtenidas por centrifugación indujeron un crecimiento del rotífero igual al obtenido con el alimento control (densidad máxima: 320rotíferos/mL; tasa instantánea de crecimiento: 0.23rotíferos/día, fecundidad: 1.49huevos/ hembra y productividad: 43x103rotíferos/L/día). Se concluye que la pasta de R. salina centrifugada y congelada a -20°C, durante cuatro semanas, sin adición de vitamina C, mantiene su calidad nutricional similar a la del alga fresca y puede ser usada como alimento de Brachionus plicatilis.
Descritores: Ração Animal
Aquicultura/métodos
Criptófitas/química
Rotíferos/crescimento & desenvolvimento
-Ração Animal/análise
Ácido Ascórbico/administração & dosagem
Proteínas na Dieta/análise
Ácidos Graxos/análise
Lipídeos/análise
Limites: Animais
Feminino
Tipo de Publ: Research Support, Non-U.S. Gov't
Responsável: CR1.1 - BINASSS - Biblioteca Nacional de Salud y Seguridad Social



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