不同冷却方式对熟制麻团品质的影响

Effect of different cooling methods on quality of fried glutinous rice balls with sesame

摘要: 本文通过对产品进行自然冷却、冷风冷却、真空冷却和自真混合冷却及风真混合冷却,比较5种不同的冷却处理下熟制麻团品质的变化情况。结果表明:真空冷却过程中失重率远远高于自然冷却及冷风冷却;真空冷却产品硬度和脆性较高,但弹性、色泽、感官评价均低于其他冷却方式;理化指标方面,随着贮藏时间的延长,真空冷却和混合冷却能够显著减少微生物的增长,从而达到延长货架期的目的。研究发现,采用自然冷却与真空冷却相结合的方式,既能缩短冷却时间,提高产品口感,而且能达到延长货架期的目的。

Abstract: The present work aimed to explore the effect of natural cooling,air- blast cooling,vacuum cooling and two hybrid coolings on quality of fried glutinous rice balls with sesame.The results showed that,the weight loss of the vacuum cooling was higher than the natural cooling and air- blast cooling. Vacuum cooling products had higher hardness and brittleness,but lower flexible,color,sensory evaluation than other cooling methods.In the aspect of chemical indicators,with the extension of storage time,vacuum cooling and hybrid cooling can significantly reduce microbial contaminations,to achieve the purpose of extending the shelf life of food.Combining natural cooling and vacuum cooling could not only improve the appearance quality,but also extended the shelf life of products.