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苹果制汁新品种鲁加4号浓缩汁贮藏过程中稳定性的影响因素
引用本文:周亚平,刘洪涛,何维华,刘春辉,祝军,戴洪义.苹果制汁新品种鲁加4号浓缩汁贮藏过程中稳定性的影响因素[J].果树学报,2006,23(1):65-68.
作者姓名:周亚平  刘洪涛  何维华  刘春辉  祝军  戴洪义
作者单位:1. 莱阳农学院园艺系,山东,莱阳,265200
2. 莱阳农学院生命科学院,山东,莱阳,265200
基金项目:山东省农业良种产化项目
摘    要:以苹果制汁新品种鲁加4号特拉蒙(Telamon)×新红星(Starkrimson)]的浓缩果汁为试材,研究温度、pH值、糖度和果实成熟度对苹果浓缩汁贮藏过程中稳定性的影响。结果表明,温度对苹果浓缩汁贮藏过程中稳定性影响较大,贮藏温度越高,浓缩汁的稳定性越差;糖度对其影响显著,糖度越高,浓缩汁稳定性越差;pH值和果实成熟度对苹果浓缩汁稳定性也有显著性影响,浓缩汁贮藏1~2周期间,pH值与A420值呈正相关,贮藏3~4周期间,pH值与A420值呈负相关。不同采收期苹果果实出汁率、可溶性固形物含量、多酚含量、浓缩汁酸含量变化不同。果实成熟时采收制得的浓缩汁稳定性比较好。

关 键 词:苹果浓缩汁  稳定性  温度  pH值  糖度  果实成熟度
文章编号:1009-9980(2006)01-65-04
收稿时间:2005-05-25
修稿时间:2005-10-18

Studies on the factors influencing the stability of apple juice concentrate of new processing cultivar Lujia 4 during storage
ZHOU Ya-ping,LIU Hong-tao,HE Wei-hua,LIU Chun-hui,ZHU Jun,DAI Hong-yi.Studies on the factors influencing the stability of apple juice concentrate of new processing cultivar Lujia 4 during storage[J].Journal of Fruit Science,2006,23(1):65-68.
Authors:ZHOU Ya-ping  LIU Hong-tao  HE Wei-hua  LIU Chun-hui  ZHU Jun  DAI Hong-yi
Abstract:A study was carried out on the influences of temperature, pH, sugar (soluble solid substance) content and fruit maturation degree on the storage stability of apple juice concentrate of Lujia 4 (Lu for Shandong province; Jia for processing) derived from a cross between Telamon and Starkrimson.The results showed that temperature had great effects on the stability of apple juice concentrates during storage, and the higher temperature, the worse the stability of apple juice concentrates;Sugar content also had notable effects on it, and the higher sugar content , the worse the stability of apple juice concentrates;pH and fruit maturation degree significantly affected it as well,pH was positively correlated with A420 within 2 weeks in storage at 25 ℃, whereas pH was negatively associated with A420 after 2 weeks storage. The changes of ratio of juice output, soluble solids content, polyphenol content of fruit, and acid content of apple juice concentrate were different with different fruit maturation degree. Better stability of apple juice concentrates was found with fully matured fruit.
Keywords:Apple juice concentrate  Stability  Temperature  pH  Sugar content  Fruit maturation degree
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