LI Qing,LIU Dan,MA Yan-ping,et al.Effect of Different Modified Atmosphere Packages on Shelf-Life Quality and Endogenous Hormones Content of Fresh Walnuts[J].Northern Horticulture,2015,39(04):123-128.[doi:10.11937/bfyy.201504029]
MA包装对鲜食核桃冷藏期货架品质及内源激素的影响
- Title:
- Effect of Different Modified Atmosphere Packages on Shelf-Life Quality and Endogenous Hormones Content of Fresh Walnuts
- 文献标志码:
- A
- 摘要:
- 以“辽核2号”鲜食核桃为试材，采用Thn-PE11(11 μm)、PE30(30 μm)、PE50(50 μm)和Thk-PE90（90 μm）4种MA包装后于（0±0.5）℃下贮藏，定期转入7℃货架期贮藏7 d，以6 μm的普通薄膜包装为CK，监测各包装袋内气体成分、核仁品质及内源激素含量的变化。结果表明：各MA包装处理均具有提高CO2浓度和降低O2浓度的气调能力；4种包装下鲜核仁的酸价、过氧化值和羰基价均极显著低于CK，其中以PE30和PE50包装最低；PE30和PE50包装核桃的粗蛋白和脂肪含量较高；同时，4种MA包装降低了鲜食核桃脱落酸（abscisic acid，ABA）的含量，显著维持了其贮藏后期较高的赤霉酸（gibberellic acid，GA）与玉米素核苷（zeatin riboside，ZR）的含量。综合考虑各指标变化及成本因素，确定PE30为脱青皮鲜食核桃适宜的MA包装。
- Abstract:
- Taking‘Liaohe 2’fresh walnuts as test materials，the changes of gas concentrations，kernel quality and the endogenous hormones concentrations of ‘Liaohe 2’ fresh walnuts were regularly monitored after storing at（0±0.5）℃ and a further 7 days at 7℃.These fresh walnuts were packed in Thn-PE11 (11 μm)，PE30 (30 μm)，PE50 (50 μm) and Thk-PE90 (90 μm) packages (6 μm plastic films as control).The results showed that all MA packages reduced the concentration of O2 and increased that of CO2.Acidfi value，peroxide value and carbonyl value were lower in walnuts packed by MA packages than that of the control significantly (P＜0.01)，especially obvious in PE30 and PE50 packages，in which relatively high contents of crude protein and fat were detected.All MA packages reduced abscisic acid(ABA) content and maintained significantly (P＜0.05) higher contents of gibberellic acid (GA) and zeatin riboside (ZR) in the late storage of fresh walnuts than control.Considered the changes of all indicators and the cost，PE30 could be selected as the suitable MA package of fresh walnuts for better shelf quality after cold storage.
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备注/Memo
第一作者简介：李晴（1990-），女，硕士，研究方向为果蔬贮藏与加工。E-mail：liqing900414@gmail.com.责任作者：马艳萍（1976-），女，博士，讲师，现主要从事经济林果品贮藏与加工等研究工作。E-mail：myp1273@163.com.基金项目：国家自然科学基金资助项目(31200518)；西北农林科技大学试验示范站科技成果推广资助项目（TGZX2014-20）。