论文部分内容阅读
The research was conducted to investigate the antioxidant activities and total phenolic contents of grape marc extracts by steam treatment.The result revealed that the untreated sample and the sample treated at 100 o C showed similar antioxidant property and phenolic contents.But the treatment at 120° C for 5 minutes and 10 minutes showed higher antioxidant activity and higher phenolic contents compared to those of untreated sample and treated at 100 ℃.Overall,the result suggest that the adequate condition to make grape juice containing high antioxidants is higher temperature (120 ℃) for 5 to 10 minutes during steaming process.