Using medicine food homologous medicinal material such as Astragalus membranaceus and Codonop-sis pilosula,along with green tea as raw materials,the ratio and extraction process of Shenqi composite tea were optimized through single-factor experiments,orthogonal experiments,and response surface methodology.In addition,the antioxidant capacity and physicochemical indicators of the composite tea were determined.The results showed that the optimal ratio of the composite tea was 3.0 g of Astragalus membranaceus,5.0 g of Codonopsis pilosula,2.0 g of green tea,0.5 g of Lycium barbarum and 0.5 g of jujube,with the sensory score of 90.66.The optimal extraction process was 150 mL of water,heating time of 10 min,and heating tempera-ture of 95 ℃.The total flavonoid and tea polyphenol contents were 22.20 mg/g and 30.77 mg/g,respective-ly.The DPPH scavenging rate of the composite tea was 84.21％,and the ABTS+radical scavenging rate was 93.17％.All physicochemical test results complied with the relevant national standards.This study not only provides a reference for the development of new medicine food homologous products but also promotes the in-heritance and development of China's traditional medicine food homologous culture.
关键词
药食同源/复合茶/感官评价/总黄酮/茶多酚/抗氧化活性
Key words
medicine food homology/composite tea/sensory evaluation total flavonoids/tea polyphenols/an-tioxidant ability
维普
万方数据