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Evaluation of foam properties of saponin from Ilex paraguariensis A. St. Hil. (Aquifoliaceae) fruits BJPS
Canto,Gizele Scotti do; Treter,Janine; Yang,Samanta; Borré,Gustavo Luís; Peixoto,Maria Paula Garofo; Ortega,George González.
Saponins are natural compounds able to form abundant foam, a desirable quality required in some chemical, foods, cosmetic and pharmaceutical processes. Ilex paraguariensis A. St. Hil. (Aquifoliaceae) known as mate, is a South American widely cultivated specie due to the preparation of a tea-like beverage from its leaves. Moreover, its green fruits are a rich source of non-toxic and very low haemolytic saponins. In this study, mate saponin fraction (MSF) was evaluated as a foam former, focusing on its foamability, foam lifetime, and film drainage in the presence of different electrolytes (ionic strength I = 0.024 M). Sodium dodecyl sulphate (SDS) and polysorbate 80 (Poly-80) were used as reference surfactants. The critical micelle concentration (CMC), the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ilex paraguariensis; Aquifoliaceae; Mate; Saponins; Surfactants; Foam; Assay.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502010000200010
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Identification of demand characteristics in the production of sires using a conceptual model of quality function deployment: a case study R. Bras. Zootec.
Rosado Júnior,Adriano Garcia; Lobato,José Fernando Piva; Echeveste,Márcia; Gerber,Adriano Schaun; Yang,Samanta; Rossini,Karina.
The objective of this study is to identify demands of customers of a sire-producing company in Rio Grande do Sul, Brazil, by using a methodology adapted from quality function deployment tool. The adaptation consisted on the fact that matrices are treated in an unified manner among product and services due to the high perception of inter-relationship among these business components. The results evidenced that clients priorize traits related to the product, especially genetic value of the bulls. Service items were also highlighted, and they may be presented as an opportunity of differentiation among suppliers. Customer profile influenced priority order inasmuch as farmers with no technical services prioritized performance traits over genetic traits, opposing...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agribusiness; Genetics characteristics; Quality demand.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-35982011000100029
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