Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10395598 | Bioresource Technology | 2010 | 6 Pages |
Abstract
Leaching was studied for its application in extracting inorganic and organic constituents from fresh fermented grape pomace, air-dried fermented grape pomace and air-dried sugar beet pulp. Samples of each feedstock were leached in water at ambient temperature for 30 or 120Â min at dry solid-to-liquid ratios of 1/20 and 1/50Â kg/L. Leaching removed 82% of sodium, 86% of potassium, and 76% of chlorine from sugar beet pulp, and reduced total ash concentration in air-dry fermented grape pomace from 8.2% to 2.9% of dry matter, 8.2% to 4.4% in fresh fermented grape pomace, and 12.5% to 5.4% in sugar beet pulp. Glycerol (7-11Â mg/dry g), ethanol (131-158Â mg/dry g), and acetic acid (24-31Â mg/dry g) were also extracted from fermented grape pomace. These results indicate that leaching is a beneficial pretreatment step for improving the quality of food processing residues for thermochemical and biochemical conversion.
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Physical Sciences and Engineering
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Authors
Chaowei Yu, Yi Zheng, Yu-Shen Cheng, Bryan M. Jenkins, Ruihong Zhang, Jean S. VanderGheynst,