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食品研究与开发:2021,42(24):121-126
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中高温干燥对挂面储藏品质的影响
(1.中粮营养健康研究院有限公司,营养健康与食品安全北京市重点实验室,老年营养食品研究北京市工程实验室,北京 102209;2.中粮面业(濮阳)有限公司,河南 濮阳 457000)
Effect of Medium-High Temperature Drying on the Storage Quality of Dried Noodles
(1.Nutrition&Health Research Institute,COFCO Corporation,Beijing Key Laboratory of Nutrition&Health and Food Safety,Beijing Engineering Laboratory of Geriatric Nutrition&Food Research,Beijing 102209,China;2.COFCO Flour Industry(Puyang)Company Limited,Puyang 457000,Henan,China)
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投稿时间:2020-12-13    
中文摘要: 为延长挂面货架期,研究了中高温干燥对挂面储藏品质的影响。研究结果表明,中高温干燥对挂面酸度及白度值无显著影响,但挂面脂肪酸值在经过高温干燥后显著下降(p<0.05)。同时,挂面水分、脂肪酶活性、脂肪氧化酶活性及微生物数量均显著降低(p<0.05),且随着干燥温度的升高,作用效果越显著。其中挂面的菌落总数由40℃干燥时的4.10 lg(CFU/g)降低到80℃干燥时的1.98 lg(CFU/g),霉菌、酵母菌数量也显著降低。因此,提高挂面干燥温度有助于改善挂面的储藏品质,延长挂面保质期。
中文关键词: 挂面  中高温干燥  理化特性  微生物  保质期
Abstract:In order to prolong the shelf life of dried noodles,the influence of medium-high temperature drying on the storage quality of dried noodles was studied.The results showed that the medium-high temperature drying had no significant effect on the acidity and whiteness value of dried noodles;however,the fat acidity value of driednoodlesdecreasedsignificantlyafterhightemperature drying(p<0.05).Meanwhile,the water content,lipase activity,lipoxygenase activity,and microbial number of dried noodles decreased significantly(p<0.05).The effect became more significant with an increase in the drying temperature.In addition,the aerobic plate count of dried noodles decreased from 4.10lg(CFU/g)at 40 ℃ to 1.98 lg(CFU/g)at 80 ℃,and the mould and yeast counts were markedly reduced.Therefore,increasing the drying temperature could contribute to the improvement of storage quality and prolong the shelf life of dried noodles.
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