固定波长UV-VIS光对大豆油品质的影响  

Effect of Fixed Wavelength UV-VIS Light on Quality of Soybean Oil

作　　者：于殿宇[1] 刘鑫[1] 王玥[1] 邹小雨[1] 奚会松[1] 江连洲[1] 

机构地区：[1]东北农业大学食品学院,哈尔滨150030

出　　处：《中国粮油学报》2013年第8期19-23,共5页Journal of the Chinese Cereals and Oils Association

基　　金："十二五"国家科技支撑计划(2011BAD02B01)

摘　　要：通过设定不同温度、光强度、光波长、时间对大豆油进行脱色试验,对大豆油的过氧化值、酸价及色泽进行了测定,研究分析了大豆油过氧化值、酸价及色泽随温度、光强度、光波长及照射时间变化的基本规律。通过单因素及正交试验,VIS-450光照脱色的最优工艺条件:光通量2 400 lm,温度35℃,时间3 h,脱色率为53.2%。UV-365光照脱色的最优工艺条件:光通量2 400 lm,温度35℃,时间2 h,脱色率为42.4%。结果表明:UV-365比VIS-450对大豆油品质劣变影响较大;VIS-450比UV-365对大豆油脱色率影响较大。By setting the different temperature, light intensity, light wavelength, time on decolorization of soy- bean off, determine peroxide value, acid value and color of soybean, research and analysis of soybean oil peroxide value, acid value and color variation with relationship of temperature, light intensity, light wavelength and exposure time. Through single factor and orthogonal test, the optimum conditions of the VIS -450 light decolorization is： The luminous flux 2 400 lm, temperature of 35 ~C ,time of 3 h, The decolorization rate 53.2%. The optimum conditions of the VIS - 365 light decolorization is ： The luminous flux 2 400 lm, temperature of 35 ~C, time of 2 h, the decolor- ization rate 42.4%. The results showed that： UV-365 more influential than VIS -450 t on the quality of soybean oil deterioration, VIS -450 more influential than UV- 365 on soybean oil decolorization rate influence.

关 键 词：固定波长 UV—VIS光 大豆油 品质 脱色率 

分 类 号：TS224[轻工技术与工程—粮食、油脂及植物蛋白工程]