5-没食子酰基奎宁酸 TN1290

Product Introduction
Bioactivity


英文名: 5-Galloylquinic acid

描述: 5-Galloylquinic acid as an index for the baking intensity of oolong teas. It has antioxidant activity.

体外活性: Phenolic compounds in a series of old oolong teas prepared by baking annually were monitored and compared. The results showed that the relative content of gallic acid over 5-Galloylquinic acid was subsequently elevated during this preparatory process. To reveal the effect was mainly resulted from baking or aging, two sets of oolong teas were collected and examined; one set was generated from fresh oolong tea via continually daily baking and the other set was composed of aged oolong teas with no or light baking in the storage period. The relative content of gallic acid over 5-Galloylquinic acid was observed to be subsequently elevated when oolong tea was continually baked at 90, 100, 110, and 120 °C for 8 h day after day. In contrast, the relative contents of gallic acid over 5-Galloylquinic acid in aged oolong teas with no or light baking were found to be similar to or slightly higher than that in fresh oolong tea.

存储条件: Powder: -20°C for 3 years | In solvent: -80°C for 1 year

关键字: 5 Galloylquinic acid | 5Galloylquinic acid | 5-Galloylquinic acid

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注：该产品未在中华人民共和国食品药品监督管理部门申请医疗器械注册和备案，不可用于临床诊断或治疗等相关用途