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Position: Home > Articles > Study on a rapid method to estimate the heat treatment of liquid milk Science and Technology of Food Industry 2011 (5) 165-167

快速评价液态乳受热强度方法的研究

作  者:
孙丽平;庄永亮;汪东风
单  位:
昆明理工大学化学与工程学院食品工程研究中心;中国海洋大学食品科学与工程学院食品科学实验室
关键词:
紫外-可见吸收光谱;液态模拟乳;糠氨酸;热处理
摘  要:
100、120、140℃加热液态模拟乳0~30min,在300nm产生特征吸收峰,峰强度随加热时间逐渐增强,并显著线性相关(R2=0.9527、0.9685和0.9917,P<0.001);在100℃加热0~30min和120℃加热0~20min加热时间内,峰强度与糠氨酸产量线性相关(R2=0.9492,P<0.01;R2=0.9524,P<0.05)。表明紫外-可见吸收光谱法可以用于液态乳受热强度分析,具有简单、快速、低成本且适用范围广等优点。
译  名:
Study on a rapid method to estimate the heat treatment of liquid milk
作  者:
SUN Li-ping1,ZHUANG Yong-liang1,WANG Dong-feng2 (1.Research Center of Food Engineering,College of Chemistry and Engineering,Kunming University of Science and Technology,Kunming 650224,China;2.The Laboratory of Food Science,College of Food Science and Technology,Ocean University of China,Qingdao 266003,China)
关键词:
UV-Vis spectroscopy;liquid milk-like sample;furosine;heat treatment
摘  要:
When heated at 100,120 and 140℃,liquid milk-like samples showed characteristic absorbance peak at about 300nm and the absorbance density increased with the heating time.Meanwhile,the good linear correlations(R2=0.9527,0.9685 and 0.9917,P<0.001)were observed between the absorbance density and heating time.Furosine was formed during heating and for samples at 100℃ for 0~30min and 120℃ for 0~20min,good linear correlations were observed with R2=0.9492(P<0.01)and 0.9524(P<0.05)respectively.The results suggested the UV-Vis spectroscopy method might allow a wide characterization of heat processes and give a rapid evaluation of the nutritional quality of milk products with low cost.

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