کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4492884 1623301 2014 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
1H NMR spectral analysis as a new aspect to evaluate the stability of some edible oils
موضوعات مرتبط
علوم زیستی و بیوفناوری علوم کشاورزی و بیولوژیک علوم کشاورزی و بیولوژیک (عمومی)
پیش نمایش صفحه اول مقاله
1H NMR spectral analysis as a new aspect to evaluate the stability of some edible oils
چکیده انگلیسی

Oxidative stability is one of the most important indicators for maintaining the quality of edible oils. 1H NMR fingerprinting is used to evaluate the stability of edible oils at room temperature. The assignments of the 1H NMR signals of the major and minor components of unoxidized edible oils and the oil stability prediction were given. Minor components of the oils are playing an essential role in defining oil authenticity and quality. Extra virgin olive oil (EVOO) showed β-sitosterol, whereas, moringa oil (MO) showed β-sitosterol and stigmasterol. MO showed nonglyceride fraction, aliphatic chains and olefins. Sunflower oil (SO) could be easily distinguished due to its high linoleic acid content followed by apricot kernel oil (AKO). The order of stability of edible oils under study was: MO > EVOO > AKO > SO. 1H NMR spectral data agreed with the results obtained from Rancimat method for the determination of oxidative stability of edible oils under study. The main advantages of this method are the short time of analysis, the possibility to analyze samples without any preliminary treatment, and the small quantity of sample required.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Annals of Agricultural Sciences - Volume 59, Issue 2, December 2014, Pages 201–206
نویسندگان
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