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Journal of Agricultural Science and Technology، جلد ۱۲، شماره ۲، صفحات ۱۶۷-۱۷۲
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عنوان انگلیسی Rice Bran Phytosterols of Three Widespread Iranian Cultivars
چکیده انگلیسی مقاله Rice bran sterols have antioxidant activity as well as physiological and biological effects. Because of these benefits, the aim of this study is evaluating the quantity and quality of Iranian rice bran sterols. Three widespread Iranian rice cultivars (Khazar, Hashemi, and Alikazemi) were used for determination of their sterol contents. Two methods of sample preparation were compared and the better one was used in this work. Rice bran samples were saponified directly after acid hydrolysis. Unsaponified materials were extracted, purified by solid phase extraction, silylated, and their sterol fractions determined by GC-MS. The sterol composition (in mg kg-1 bran) of three cultivars (Khazar, Alikazemi, and Hashemi) were 1,330.69, 1,279.95, 1,313.17 β-sitosterol; 747.52, 696.05, 756.8 campesterol; 112.8, 115.36, 114.24 Δ-5-avenasterol, 38.912, 33.08, 38.24 Δ-7-avenasterol; 8.05, 7.07, 7.56c holesterol; 4.20, 3.99, 4.23 brassicasterol; and 2,722.016, 2,706.176, 2,717.68 total sterols, respectively. The results showed that there were no significant differences between the individual and total sterol contents of these three cultivars (P> 0.05), except campesterol, β-sitosterol, and Δ-7-avenasterol. The highest and lowest sterols were ß-sitosterol and campesterol.
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نویسندگان مقاله m درخشان هنرپرور | derakhshan honarparvar
department of food science and technology, college of agriculture, university of urmia, urmia, islamic republic of iran.
سازمان اصلی تایید شده: دانشگاه ارومیه (Urmia university)

محمد مهدی حامدی | m m
department of food science and engineering, faculty of biosystem, university of tehran, karaj, islamic republic of iran.
سازمان اصلی تایید شده: دانشگاه تهران (Tehran university)

m kh pirouzifard | m kh
department of food science and technology, college of agriculture, university of urmia, urmia, islamic republic of iran.
سازمان اصلی تایید شده: دانشگاه ارومیه (Urmia university)

نشانی اینترنتی http://jast.modares.ac.ir/article_4363_6bd6a02ec59bfd694b2d6f72b2e66dd9.pdf
فایل مقاله اشکال در دسترسی به فایل - ./files/site1/rds_journals/476/article-476-494890.pdf
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زبان مقاله منتشر شده en
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