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食品研究与开发:2017,38(6):15-20
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低温漂烫对芦笋酶活、质构特性和色泽的影响
毕家钰1,郑炯1,2,*
(1. 西南大学 食品科学学院,重庆 400715;2. 农业部农产品贮藏保鲜质量安全风险评估实验室(重庆), 重庆 400715)
Effects of Low Temperature Blanching Processing on the Enzyme Activity, Texture and Color for Asparagus
BI Jia-yu1, ZHENG Jiong1,2,*
(1. College of Food Science, Southwest University, Chongqing 400715, China;2. Laboratory of Quality and Safety Risk Assessment for Agro-products on Storage and Preservation(Chongqing), Ministry of Agriculture,Chongqing 400715, China)
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投稿时间:2016-07-15    
中文摘要: 以芦笋为原料,研究了低温漂烫处理(60、65、70 ℃)对芦笋酶活、质构特性和色泽的影响。结果表明:芦笋经过 漂烫处理后,其硬度和弹性均下降,60、65、70 ℃和对照组漂烫 10 min 后,其硬度值分别下降了 36.5 %、31.4 %、61.8 %和84.9 %,弹性分别下降了 6.8 %、14.8 %、20.5 %和 54.5 %;60、65、70 ℃分别处理 15、10、5 min 以上可以使过氧化物酶和多 酚氧化酶失活;漂烫后芦笋的亮度值 L* 逐渐增加,红绿值 a* 先减小后增大,黄蓝值 b* 逐渐增加。65 ℃漂烫 10 min 的处 理在一定程度上延缓了芦笋质构的下降,并且能够抑制过氧化物酶和多酚氧化酶的活性,与传统的沸水漂烫相比,低温 漂烫对芦笋色泽的影响较小,较好的保持芦笋的质构和颜色品质。
中文关键词: 芦笋  低温漂烫  酶活  质构  色泽
Abstract:The effects of low temperature blanching processing on the enzyme activity texture and color for as- paragus at 60, 65 ℃ and 70 ℃ were analyzed. The results showed that the hardness and elasticity decreased gradually during blanching. After different blanching temperature(60,65,70 ℃,CK) for 10 min, the hardness fell by 36.5 %,31.4 %,61.8 %,84.9 %, and the elasticity fell by 6.8 %,14.8 %,20.5 %,54.5 %. Peroxides and polyphenol oxidase inactivated by the more than 15,10,5 min treatment ot 60,65,70 ℃, respectively. Compared with the fresh sample, the L* value and b* value of blanching asparagus increased the a* value decreased first and then increased. To a certain extent, blanching at 65 ℃ for 10 min could delay the decrease of the structure of asparagus, and could inhibit the activity of peroxidase and polyphenol oxidase, had less effect on the color of as- paragus.
文章编号:201706004     中图分类号:    文献标志码:A
基金项目:重庆市社会事业与民生保障科技创新专项 (cstc2015-shmszx80007)
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