Effects of hypobaric treatment on some physiological indices and fruit quality of postharvest pomegranate
ZHANG Run-guang, ZHANG You-lin, TIAN Cheng-rui, YIN Hai-li, HOU Ya-fei, ZHANG-YANG Jun-na
(College of Food Engineering and Nutritional Science, Shaanxi Normal University, Xi′an 710062, Shaanxi, China)
Abstract:
Effects of different hypobaric treatment on some physiological indices and storage quality of postharvest “Jingpitian” pomegranate fruit from Lintong,Shaanxi province were studied. The results showed that pomegranate fruit stored at 4 ℃ under the pressure of 50.7 kPa with the relative humidity of 90%～95% could maintain the soluble solids content, titratable acidity and vitamin C content of arils well, reduce the fruit respiratory rate effectively, slow down the rise of the relative conductivity rate and browning index of peel, inhibit the activities of polyphenoloxidase and ascorbic acid oxidase, keep catalase activity at a relatively high level, decrease the fruit weight loss rate and rotten rate. After 120 days of storage, pomegranate fruit had a colorful appearance and the quality of arils was favorable.
KeyWords:
pomegranate; hypobaric treatment; physiological index; fruit quality
