中国食品学报2017，Vol.17Issue(5)：130-137,8.DOI:10.16429/j.1009-7848.2017.05.017
ClO2处理和包装方法对鲜核桃仁贮藏品质的影响
Effects of ClO2 Treatment and Packing Methods on Storage Quality of Fresh Walnut Kernel
摘要
Abstract
Fresh walnut kernel was considered as delicious and nutritious,but hard to storage,it make an obstacles for selling and storage.The objective of this study was investigated a safe and highly efficient method for walnut preservation.The "WEN 185" thin-shell walnut which is the major production walnut varieties in Xinjiang province was used as test materials.Effects of different concentration (40 mg/L and 80 mg/L) chlorine dioxide (ClO2) treatment and different packing methods (Aluminum foil-heat sealing and aluminum foil-vacuum package) on storage quality and lipid oxidization enzyme activity of Fresh Walnut was explored.The results revealed that vacuum packing combined with low concentration of chlorine dioxide (40 mg/L) treatment could restrain decay rate,respiration intensity and browning of fresh walnut kernel effectively.The storage quality of walnut kernel was effectively preserved.The change of the nutrient in walnut kernel was analyzed.It was found the consumption of protein and sugar content was decreased significantly.Meanwhile the increase of acid value and peroxide value were delayed,it cause the oxidation decomposition of unsaturated fatty acid which is the main beneficial components of walnut kernel was significantly reduced.The peaks of fat oxidation related enzyme activity (SOD,CAT) was postponed 10d,the activity of lipoxygenase was effectively reduced.It indicted that the production of harmful materials such as free radicals and superoxide were inhibited.The regulation pathway of fresh walnut kernel quality keep with enzyme activity was expounded.关键词
鲜核桃仁/二氧化氯/贮藏品质/氧化酶活Key words
fresh walnut kernel/chlorine dioxide/storage quality/oxidation related enzymes activity引用本文复制引用
韩强,郜海燕,陈杭君,房祥军,穆宏磊,吴伟杰..ClO2处理和包装方法对鲜核桃仁贮藏品质的影响[J].中国食品学报,2017,17(5):130-137,8.基金项目
浙江省科技厅援疆项目(2015C26006) （2015C26006）
国家自然科学基金面上项目(31571907) （31571907）
