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Comparison of the antioxidant and physiological activities of grape seed extracts prepared with different drying methods
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 Title & Authors
Comparison of the antioxidant and physiological activities of grape seed extracts prepared with different drying methods
Jeong, Da-Som; Youn, Kwang-Sup;
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 Abstract
The physiological activities of 70% ethanol extracts of grape seed (GS) prepared by freeze-drying (GSFD), infrared drying (GSIR), hot-air drying (GSHD), or sun-drying (GSSD) were investigated. The moisture contents of GSFD, GSIR, GSHD and GSSD powders were 4.53, 6.71, 6.91 and 5.55% respectively. Hunter`s color value analysis revealed that the value of GSIR was lower, and the and values of GSIR were higher, than those of GSFD, GSHD, and GSSD. The total polyphenol and proanthocyanidin contents of GSFD were significantly higher than those of the other extracts. The flavonoid related substance contents were in the order of GSFD (7.68 g/100g)
 Keywords
grape seed;antioxidant;drying method;physiological activities;
 Language
Korean
 Cited by
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