RELATIONSHIP BETWEEN PHENOLICS METABOLISM IN HUANGGUAN PEAR PEEL AND JIZHUA DISEASE OF HUANGGUAN PEAR DURING STORAGE
In order to investigate the causes of Jizhua disease of Huanggnan pear during storage, we analyzed the phenolics in the Huanggnan pear peel processed by different methods. The results showed that the phenolics in the Huanggnan pear peel mainly contained chlorogenic acid, arfoutin, catechin, caffeic acid, coumaric acid, and quercetin, wherein chlorogenic acid accounted for 80% the total amount of the phenolics, and served as the major PPO substrate. Calcium treatment and pullulan coating treatment postponed the content decrease speed of the phenolics, such as chlorogenic acid, in the Huanggnan pear peel during storage so as to lower the incidence rate of Jizhua disease. At the last stage of storage, the incidence rate of the contrast group of Huanggnan pear reached 33.33%, the incidence rate of the group treated by calcium-dipping treatment was 0%, and the incidence rate of the group treated by pullulan coating treatment was 3.33%. Accordingly, the calcium treatment had better disease prevention effect.
NETL
NSTL
万方数据
维普
