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Extraction of Soluble Polysaccharides from Grape Skins Ciencia e Investigación Agraria
Gil Cortiella,Mariona; Peña-Neira,Álvaro.
Obtaining polysaccharides from grape cell walls is an interesting topic for the wine industry given its implications with regards to wine treatments and potential sensory attributes. In the present work, several conditions (i.e., a chelating agent, pH, titratable acidity, extraction time, number of successive extractions, solid to liquid ratio and alcoholic fermentation) were tested to assess their effects on the yield of soluble polysaccharides obtained from grape skins. Among the four tested solvents (i.e., water, tartaric acid, ammonium oxalate, and ethylenediaminetetraacetic acid), aqueous ammonium oxalate was the most effective for polysaccharide extraction but also produced the highest amount of protein impurities. Increasing the number of successive...
Tipo: Journal article Palavras-chave: Carménère; Extraction; Grape skin polysaccharides; Pectin; Polysaccharides; Wine.
Ano: 2017 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202017000100009
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