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葡萄籽含有丰富的生物活性成分,具有极高的营养价值和保健作用。为了充分利用葡萄籽中的功能性成分,提高产品的附加值,将超微粉碎技术应用于葡萄籽的加工中,生产葡萄籽超微粉产品。为评价葡萄籽超微粉在人体中的吸收利用状况,做模拟肠、胃环境的吸收试验。试验结果表明:葡萄籽超微粉经模拟胃液消化3～5h,多酚、白藜芦醇溶出率:霞多丽60.87%～67.43%、23.65%～40.64%,赤霞珠60.48%～69.99%、20.63%～43.38%;经模拟肠液消化5～15h,多酚、白藜芦醇溶出率:霞多丽1.96%～17.86%、17.51%～50.25%,赤霞珠3.38%～15.23%、14.02%～44.71%。葡萄籽多酚物质的消化吸收主要集中在胃环境中,白藜芦醇在肠、胃环境中的消化吸收几乎各占一半。
Grape seeds are rich in bioactive ingredients, with high nutritional value and health effects. In order to make full use of the functional components in grape seed and improve the added value of the product, the ultrafine grinding technology is applied to the processing of grape seed to produce the grape seed ultrafine powder product. In order to evaluate the absorption and utilization status of grape seed ultrafine powder in the human body, the absorption test of simulated intestinal and gastric environment was conducted. The results showed that the digestion rates of polyphenol and resveratrol were 60.87% -67.43%, 23.65% -40.64% and Cabernet Sauvignon 60.48% -69.99%, respectively. 20.63% ~ 43.38%. The digestion rate of polyphenol and resveratrol was 1.96% ~ 17.86%, 17.51% ~ 50.25%, Cabernet Sauvignon 3.38% ~ 15.23%, 14.02% ~ 44.71%. Grape seed polyphenols digestion and absorption of substances mainly in the stomach environment, resveratrol in the intestine, stomach digestion and absorption in almost half.