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Docosahexaenoic Acid Ester Degradation Measured by FTIR-ATR with Correlation Spectroscopy

American Journal of Analytical Chemistry 2014年第6期5卷 373-377页

作者： Ronald A. Holser Quality and Safety Assessment Russell Research Center United States Department of Agriculture Agricultural Research Service (USDA-ARS) Athens USA

Highly unsaturated fatty acids such as docosahexaenoic acid and linolenic acid are prone to oxidation with a resulting loss of bioactivity and generation of malodorous degradation compounds. Degradation proceeds by formation of the corresponding hydroperoxyl free radical with subsequent oxidative cleavage at the double bond site. FTIR-ATR was used to detect degradation through spectral changes that were correlated to oxidative degradation. The spectrometer was equipped with a heated stage so that a series of spectra could be collected while the sample was exposed to elevated temperatures. The appearance of new bands at 972.8 cm﹣1, 2934 cm﹣1, and 3498 cm﹣1 with the disappearance of bands at 703.6 cm﹣1 and 3013 cm﹣1 were observed after heating and these spectral changes were evaluated by correlation spectroscopy analysis. These results provide a method to quickly detect the oxidative degradation of polyunsaturated fats. This approach is expected to be applied for the quality assessment of feed formulations fortified with omega-3 fatty acids.

关键词： Correlation Spectroscopy Infrared Spectroscopy Polyunsaturated Acid linolenic Acid

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Physiochemical Composition of Fig Seed Oil from Turkey

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Journal of Pharmacy and Pharmacology 2019年第10期7卷 541-545页

作者： Nazan Güven Ali Gokyer Aysenur Koc Naime Nur Temiz Seher Selvi Beril Koparal Burcak Deniz Dedeoglu Sidika Büyükhelvacigil Oztürk Hale Feyza Büyükhelvacigil Ramazan Büyükhelvacigil Ceren Erman Zade Vital■ Natural Supplements Istanbul 34775 Turkey Zade Vital■ Natural Supplements General Menager/Zade■& Zade Global General Manager 2800 Lively Blvd Elk Grove Village IL 60007 Illinois ABD Zade Vital■ Natural Supplements Avicenna Ar&Ge Center Konya 42050 Turkey 不详

Fig (Ficus carica Linn (Moraceae)) is a deciduous tree that grows in tropical and subtropical zones [1]. Ficus carica has a broad spectrum of pharmacological activity and is widely used in traditional medicine. Research has found its use in more than 40 areas. Some of these are gastrointestinal, endocrine, respiratory, reproductive system disorders [2]. The fig seed oil contains alpha-linolenic acid (ALA), which is highly beta-sitosterol and herbal omega [3]. It can be used as a supplement in the treatment of diseases such as cardiovascular disorders, gastrointestinal disorders, and diabetes. Fig seed oil can be a good choice for skin hydration when used externally. In our study, the fig seed oil was analyzed by gas and liquid chromatography. In this study where linoleic acid (C18:2) and linolenic acid (C20:0) ratios found in fig seed oil composition were evaluated, the health benefits of two fatty acids were discussed based on the literature.

关键词： Ficus carica fig seed oil linoleic acid linolenic acid fig

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