油脂同步荧光光谱检测及橄榄油掺假鉴别  

Synchronous Fluorescence Detection of Oil and Olive Oil Adulteration Identification

作　　者：方晓明[1] 张欣[2] 冯春野 唐毅锋[1] 丁卓平[2] 

机构地区：[1]上海出入境检验检疫局,上海200135 [2]上海海洋大学食品学院,上海201306

出　　处：《中国粮油学报》2015年第9期112-118,共7页Journal of the Chinese Cereals and Oils Association

基　　金：国家质检总局科研项目(2012IK184);上海市技术性贸易措施应对专项项目(12TBT010)

摘　　要：采用同步荧光光谱仪,在激发波长250-720 nm,波长间隔Δλ=15 nm时,采集20种食用植物油和掺杂的特级初榨橄榄油的荧光光谱图,分析比较了各种植物油脂的同步荧光光谱图。结果表明,同步荧光光谱法能够将特级初榨橄榄油与其他17种植物油明显地区分开来。在橄榄油掺杂鉴别中,其中14种植物油掺兑量在1%的情况下,同步荧光光谱图与特级初榨橄榄油有着明显的差异。同步荧光光谱法对橄榄油掺假鉴别,无需复杂的样品前处理,本方法简便、快速、灵敏,适合快速筛查。The synchronous fluorescence spectra including 20 categories of edible vegetable oils as well as adulterated extra virgin olive oils were collected by Synchronous Fluorescence Spectrometry （SFS）. The spectra were acquired by varying the excitation wavelength within 250 -720 nm with the wavelength interval （Ak） of 15 nm. On basis of analysis and comparison of the spectra of various vegetable oils, the SFS had revealed an obvious difference between the extra virgin olive oil and the other 17 categories of edible vegetable oils. In detection of olive oil adulteration, in cases which 14 categories of vegetable oil blending quantity in 1% , the spectra of adulterants could be discriminated from extra virgin olive oil. SFS for olive oil adulteration detection requires no complicated sample pretreatment. The method is simple, rapid and sensitive to be suitable for rapid screening detection of olive oil adulteration.

关 键 词：同步荧光光谱 食用植物油 橄榄油 掺假 检测 

分 类 号：TS207.3[轻工技术与工程—食品科学]