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Paper Information

Journal:   JOURNAL OF AGRICULTURAL SCIENCE (UNIVERSITY OF TABRIZ)   2007 , Volume 17 , Number 1; Page(s) 99 To 107.
 
Paper: 

CHROMATOGRAPHIC MEASUREMENT OF FATTY ACIDS, STEROLS AND VITAMIN E IN HAZELNUTS GROWN IN SELECTED AREAS OF IRAN

 
 
Author(s):  FATHI ACHACHLOUEI B.*, AZADMARD DAMIRCHI S., SEYED SHARIFI REZA, ASGHARI ZAKARIA R., SIROUSAZAR M.
 
* DEPARTMENT OF ANIMAL SCIENCE, FACULTY OF AGRICULTURE, UNIVERSITY OF MOHAGHEGH ARDABILI, ARDABIL, IRAN
 
Abstract: 

Hazelnut has high nutritional value because of high oil content, essential fatty acids, sterols, antioxidants, and minerals. Monounsaturated and polyunsaturated fatty acids and sterols have major roles in reducing LDL in coronary heart disease. In this study, fatty acids, sterols, and vitamin E of extracted oils from hazelnut samples, collected from different areas in Iran (Moghan, Qazvin, Fendeglo and Roodsar) by chromatographic methods. Oil content of hazelnut samples were % 52- 55. Fatty acid and sterols compositions of the oil samples were analyzed by GC. The extracted oils contained fatty acids such as oleic acid (C18:1), linoleic acid (C18:2), linolenic acid (C18:3), palmitic acid (C16:0), stearic acid (C18:0), arachidic acid (C20:0), and eicosenoic acid (C20:1). The results showed that oleic acid was predominant followed by linoleic acid. Among samples, hazelnuts from Qazvin and Fendeglo had the highest oleic acid (%80.6) and linoleic acid (%19.4), respectively. b-Sitosterol, stigmasterol, campesterol, cholesterol and D5-avenasterol were also determined in all of the extracted oil samples by GC. The highest content of sterols in oil samples were b-sitosterol (1502 ppm), campesterol (98 ppm), stigmasterol (23 ppm), in Moghan variety and D5- avenasterol (115 ppm) in Fendeglo variety. a-tocopherol was also determined by HPLC in all oil samples in which varieties of Fendeglo and Moghan had the highest (477.5 ppm ) and lowest content (323.8 ppm ), respectively.

 
Keyword(s): CORYLUS AVELLANA L., FATTY ACIDS, HAZELNUT, STEROLS, AND VITAMIN E
 
References: 
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