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Title: Optimizing tannin precipitation in cashew apple juice
Authors: Trakul Prommajak
Noppol Leksawasdi
Nithiya Rattanapanone
Keywords: Multidisciplinary
Issue Date: 1-Jan-2018
Abstract: The juice extracted from cashew apples contains tannins that must be reduced due to their astringency and anti-nutritional properties. This study investigated reducing the tannins in cashew apple juice by mixing gelatin at 0.0 to 1.0% (w/v) with the juice for 5 to 15 min. Response surface methodology was used to simulate tannin concentration, turbidity, and weight of precipitate as a function of gelatin concentration and mixing time. All models were significant (P<0.01) and residuals exhibited normal distribution. Increasing the gelatin concentration decreased tannins and juice turbidity. Optimal conditions for minimum concentration of tannins and turbidity were obtained by adding gelatin at 0.67% (w/v) for 15 min. Cashew apple juice with the tannins reduced could be used in the subsequent production of wine and bioethanol.
ISSN: 16851994
Appears in Collections:CMUL: Journal Articles

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