Importance of water loss in the chilling injury of grapefruit stored at low temperature

Differences in chilling injury susceptibility of grapefruit from exterior and interior tree canopy positions were used to investigate the hypothesis that water loss is related to chilling injury symptom development during low-temperature storage. The sun-exposed surface of grapefruit from exterior canopy positions was more susceptible to chilling injury and had lower diffusive resistance than the shaded surface of the same fruit. Reducing the rate of fruit transpiration during the first week of storage by a pre-cooling treatment prior to low-temperature storage delayed, but did not eliminate, the development of chilling injury.     

二氧化氯在西乡樱桃保鲜中的应用

西乡樱桃经ClO2水溶液预冷后,包装于附设100 mm2·(500g)-1硅窗的PP碗内,在(4±1)℃条件下冷藏.结果表明:ClO2作为防腐保鲜剂,防止了樱桃因水预冷过程中造成的病菌交叉感染;降低了樱桃的呼吸强度;抑制了樱桃TSS、TA、Vc含量的下降及乙醇含量的上升;推迟了樱桃开始褐变的时间,降低了褐变的程度与数量.最佳使用浓度为50 mg·L-1,浸泡时间为5 min,樱桃具有10～11 d的最佳可食用保鲜期,基本达到了异地鲜销的要求.