长期贮藏对植物油理化指标的影响
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摘要
为了研究长期贮藏后植物油理化指标的变化,测定了室温条件下存贮5年后的大豆油、花生油、菜籽油与调和油等不同植物油的酸价、过氧化值、折射率及电导率。结果表明:过氧化值比酸价的表现更为灵敏;存贮5年后植物油的折射率和电导率发生了显著变化,可以作为筛选陈化植物油的有效手段,且操作简便快速、安全可靠。
In order to study the physicochemical indicators change of different vegetable oils stored long time, the acid value, peroxide value, refractive index and conductivity of different types of soybean oil, peanut oil, rapeseed oil and blend oil which stored 6 years at room temperature were measured. The results showed that peroxide value was more sensitive than acid value. Refractive index and conductivity of different vegetable oils changed dramatically, which could be used to screen aging vegetable oils. The method was effective simple, rapid, safe and reliable.
In order to study the physicochemical indicators change of different vegetable oils stored long time, the acid value, peroxide value, refractive index and conductivity of different types of soybean oil, peanut oil, rapeseed oil and blend oil which stored 6 years at room temperature were measured. The results showed that peroxide value was more sensitive than acid value. Refractive index and conductivity of different vegetable oils changed dramatically, which could be used to screen aging vegetable oils. The method was effective simple, rapid, safe and reliable.
引文
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[16]张清,沈群.我国食用植物油中地沟油检测技术回顾[J].食品科技,2010,35(10):311-314.
[17]李洁莉,郑丹玮.食用植物油折光指数测定法的探讨[J].粮油食品科技,2006,14(3):46-47.
[18]黄伟,郑建军,徐建华.地沟油的安全快速检测研究[J].山东科技大学学报(自然科学版),2010,29(3):51-53.
[2]鲍丹青,毕艳英,王梦华,等.植物油在储存过程中氧化情况的研究[J].中国油脂,2009,34(9):38-43.
[3]MUIK B,LENDL B,MOLINA-DIAZ A,et al.Direct monitoring of lipid oxidation in edible oils by Fourier trans-form Raman spectroscopy[J].Chemistry and Physis of Lipids,2005,134(2):173-182.
[4]WITZTUM J L.The oxidation hypothesis of atherosclerosis[J].Annals of Clinical and Laboratory Science,1997,27(1):1-10.
[5]王耀,尹平河,梁芳慧,等.紫外可见分光光度法鉴别掺兑潲水油的花生油[J].分析试验室,2006,25(3):92-94.
[6]王乐,胡健华.食用油掺伪餐饮业废油脂鉴别检测方法研究进展[J].中国油脂,2007,32(9):75-77.
[7]罗赟,龚光隆,廖成华.国内潲水油鉴别检测的研究[J].现代预防医学,2008,35(6):1145-1146.
[8]赵玲,尹平河,邓琪.餐饮业废油脂脱色及皂化工艺[J].暨南大学学报(自然科学版),2004,25(5):632-636.
[9]李志江.陈化菜籽油的精炼探讨[J].中国油脂,2004,29(1):23-25.
[10]朱锐,王睿,杨小京,等.电导率测定在鉴别食用植物油掺伪应用研究[J].粮食与油脂,2008(11):42-43.
[11]刘志金,郑雪玉,潘红芝,等.潲水油与合格食用油鉴别方法的研究[J].武汉工业学院学报,2006,25(4):9-11.
[12]彭进,黄道平,刘吉星,等.电导率的测定在鉴别潲水油中的应用研究[J].实用预防医学,2007,14(3):878-879.
[13]胡小泓,刘志金,郑雪玉,等.应用电导率检测潲水油方法的研究[J].食品科学,2007,28(11):482-484.
[14]许冲,刘远洋.电导率法鉴别食用油中潲水油实验条件的选择[J].农产品加工·创新版,2010(4):39-42.
[15]吉礼,车振明,李明元.电导率法快速甄别泔水油的研究[J].中国油脂,2009,34(3):75-78.
[16]张清,沈群.我国食用植物油中地沟油检测技术回顾[J].食品科技,2010,35(10):311-314.
[17]李洁莉,郑丹玮.食用植物油折光指数测定法的探讨[J].粮油食品科技,2006,14(3):46-47.
[18]黄伟,郑建军,徐建华.地沟油的安全快速检测研究[J].山东科技大学学报(自然科学版),2010,29(3):51-53.