不同包装和贮藏温度的澳洲坚果果仁贮藏品质及货架期预测  

Storage Quality and Shelf Life Prediction of Macadamia Kernels under Different Packing Treatments and Storage Temperatures

作　　者：徐文婷 付镓榕 马尚玄 魏元苗 杨悦雪 黄克昌[1] 郭刚军[1] 贺熙勇[1] XU Wenting;FU Jiarong;MA Shangxuan;WEI Yuanmiao;YANG Yuexue;HUANG Kechang;GUO Gangjun;HE Xiyong(Yunnan Macadamia Agricultural Engineering Research Center,Yunnan Institute of Tropical Crops,Jinghong 666100,China)

机构地区：[1]云南省热带作物科学研究所,云南省澳洲坚果农业工程研究中心,云南景洪666100

出　　处：《食品科学》2024年第16期232-243,共12页Food Science

基　　金：云南省重大科技专项计划(202202AE090006);云南省盈江县澳洲坚果产业科技特派团项目(202104BI090004);云南省热带作物科技创新体系建设专项(RF2023-15,RF2024-6);云南省创新引导与科技型企业培育计划项目(202404BP090014);云南省科技人才和平台计划项目(202405AD350060);西双版纳州“雨林英才支持计划”项目;“兴滇英才支持计划”项目。

摘　　要：测定普通包装、真空包装、真空脱氧包装、氮气包装和氮气脱氧包装5种包装方式澳洲坚果果仁不同贮藏温度(4℃、常温、60℃)下水分含量、酸价、过氧化值及抗氧化活性等指标的变化,同时通过过氧化值建立动力学模型以预测澳洲坚果果仁的货架期。结果表明:采用氮气及氮气脱氧包装可显著降低生干果仁贮藏过程中酸价和过氧化值的增加幅度,减轻脂肪氧化酸败,减缓总酚含量的下降,维持较高的1,1-二苯基-2-三硝基苯肼自由基、2,2’-联氮双(3-乙基苯并噻唑啉-6-磺酸)阳离子自由基及羟自由基清除能力;过氧化值与贮藏温度和贮藏时间均呈显著正相关(P<0.05),其变化规律符合一级动力学模型,Arrhenius方程具有较好的拟合性,货架期预测模型误差小于14%,氮气包装的货架期最长,在4℃、常温和60℃下的实测值分别为215、180、108 d,其次是氮气脱氧包装,实测值分别为205、175、104 d。In this study,the changes in the water content,acid value,peroxide value,and antioxidant activity of macadamia kernels were determined at different storage temperatures(4℃,normal temperature and 60℃)in 5 packaging systems,including conventional packaging,vacuum packaging,vacuum deoxidizer packaging,nitrogen packaging and nitrogen deoxidizer packaging,and a kinetic model to predict the shelf life of macadamia kernels was established based on the peroxide value.The results showed that nitrogen and nitrogen deoxidizer packaging significantly inhibited the increase of acid value and peroxide value,reduced oxidative rancidity,slowed down the decline of total phenol content,and maintain high 1,1-diphenyl-2-picrylhydrazyl,2,2’-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid)cationic radical and hydroxyl radical scavenging ability in macadamia kernels.Peroxide value was positively correlated with both storage temperature and time(P<0.05),and its changes were fitted to a first-order kinetic model.The Arrhenius equation had good fitness,and the error of the prediction model was less than 14%.Nitrogen packaging had the longest shelf life,with measured values of 215,180,and 108 days at 4℃,normal temperature,and 60℃,respectively,followed by nitrogen deoxidizer packaging,with measured values of 205,175,and 104 days,respectively.

关 键 词：澳洲坚果 包装处理 贮藏品质 抗氧化活性 货架期预测模型 

分 类 号：TS255.3[轻工技术与工程—农产品加工及贮藏工程]