45 - 49 Marina AM.pmd
نویسنده
چکیده
A rapid method for quantitative analysis of free fatty acids in virgin coconut oil (VCO) was determined using Fourier transform infrared (FTIR) spectroscopy. Thirty training samples of VCO were prepared by spiking lauric acid to VCO samples covering a range of 0.1% to 5% of free fatty acids. FTIR spectra between 1730 and 1690 cm-1 was used for quantitative determination of free fatty acids. A partial least square (PLS) model was calibrated to predict the free fatty acids content of VCO. A linear calibration curve was obtained for the actual value against FTIR predicted value which yields an equation of y = 0.9744x + 0.0006 and satisfactory results of root mean square error of prediction (RMSEP) of 0.1264 and correlation coefficient (R2) of 0.9281. Thus, FTIR spectroscopy with PLS regression can serve as important tools for determining the free fatty acids in VCO because it is rapid, accurate and environmental friendly compared to the conventional chemical analyses.
منابع مشابه
Comparison of Antidiabetic Effects of Aqueous Extract of the Leaves and Fruits of Avicennia Marina in Streptozotocin-induced Diabetic Male Rats
Background: In this study, the anti-diabetic effect of the extract of leaves and fruits of Avicennia marina (A. marina) in streptozotocin (STZ)-induced diabetic male rats was investigated. Methods: An experimental study was conducted on 45 adult male rats in 9 groups of 5 rats. The control group received normal food only. Other groups were made diabetic by injecting them with 60 mg/kg intrap...
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متن کاملEvaluation of Protective Efficacy Of Avicennia marina (Forssk.) Leaves Against Complete Freund's Adjuvant-Induced Arthritis In Wistar Rats
Aviecennia marina (Avicenniaceae) is an endemic plant that widely distributed in the Southern parts of Iran. This plant has been used as treatment of rheumatism arthritis among the inhabitants of Southern parts of Iran. The Avicennia marina hydroalcoholic extract was prepared and its protective efficacy was investigated using measurement of ankle diameter, total WBC and RBC count, ESR, and Pro-...
متن کاملEvaluation of Protective Efficacy Of Avicennia marina (Forssk.) Leaves Against Complete Freund's Adjuvant-Induced Arthritis In Wistar Rats
Aviecennia marina (Avicenniaceae) is an endemic plant that widely distributed in the Southern parts of Iran. This plant has been used as treatment of rheumatism arthritis among the inhabitants of Southern parts of Iran. The Avicennia marina hydroalcoholic extract was prepared and its protective efficacy was investigated using measurement of ankle diameter, total WBC and RBC count, ESR, and Pro-...
متن کاملبررسی اثر عصاره آبی و آبی- الکلی برگ گیاه حرا در موش صحرایی نر دیابتی شده با استرپتوزوتوسین
Background and Objectives: Diabetes Mellitus is a major endocrine disorder and growing health problem in most of countries. Avicennia marina is a type of mangrove plants which can grows in the Iranian coastal areas of Persian Gulf. We studied the effects of Avicennia marina leaves aqueous and hydroalcoholic extract on streptozotocin -induced diabetic male rats. Material and Methods : In thi...
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