نوع مقاله : مقاله پژوهشی

نویسندگان

1 پژوهشکده‌ی کاربرد پرتوها، پژوهشگاه علوم و فنون هسته‌ای، سازمان انرژی اتمی

2 گروه مهندسی علوم و صنایع غذایی، دانشکده‌ی کشاورزی‌ دانشگاه تربیت مدرس

چکیده

عصاره­‌ی دو رقم زرشک آبی (Berberis integerrima) و پلویی (Berberis vulgaris) در حلال آب، تاریکی، pH عدد 3 و دمای
˚C 25 تهیه شد. آثار تابش­ده‌ی گاما با دزهای 0.5، 1، 2.5، 5، 7.5 و kGy 10 بر ترکیب و غلظت اسیدهای آلی و ویتامین­‌های محلول در آب هر دو رقم بررسی شد. با استفاده از کروماتوگرافی مایع با کارایی بالا (HPLC) در شاهد دو رقم، اسیدهای آلی اگزالیک، تارتاریک، کویینیک، مالیک، آسکوربیک، شیکیمیک، مالونیک، استیک، مالئیک، سوکسینیک و فوماریک اسید و ویتامین­‌های C، B5، B6، B1­، فولیک اسید، بیوتین و B2 شناسایی شدند. در رقم آبی، ترکیبات استیک، آسکوربیک و مالونیک اسید و ویتامین­‌های بیوتین، فولیک اسید و B1 و در رقم پلویی مالیک، آسکوربیک و مالونیک اسید و ویتامین­‌های B1­، بیوتین و B5 پرمقدار بودند. در دو رقم فوماریک اسید، در رقم آبی ویتامین B5 و در رقم پلویی فولیک اسیدکم مقدارترین بودند. بعد از پرتوفراوری، در رقم آبی اسیدهای مالیک (kGy 10)، استیک (kGy 0.5) و آسکوربیک (kGy 10) و ویتامین­های B5، بیوتین و B1­ با دز kGy 0.5 و در رقم پلویی اسیدهای استیک (kGy 0.5)، سوکسینیک (kGy 2.5) و مالیک (kGy 7.5) و ویتامین­‌های B5 (kGy 10)، B1 (kGy 1) و بیوتین (kGy 10) پرمقدارترین بودند.

کلیدواژه‌ها

عنوان مقاله [English]

Evaluation of Gamma Irradiation on Profile and Concentration of Organic Acids and Water Soluble Vitamins in Two Iranian Barberry Fruits

نویسندگان [English]

  • S Berengi Ardestani 1
  • M. A Sahari 2
  • M Barzegar 2

چکیده [English]

Extracts of two varieties of barberry including Berberis integerrima and Berberis vulgaris were prepared by water as a solvent, in darkness, with a pH=3 and at a temperature of 25˚C. Then the effects of gamma radiation processing with doses of 0.5, 1, 2.5, 5, 7.5 and 10 kGy were studied on the profile and concentration of organic acids and water soluble vitamins. By a high-performance liquid chromatography (HPLC) in the control samples oxalic, tartaric, quinic, malic, ascorbic, shikimik, malonic, acetic, maleic, succinic and fumaric acids and C, B5, B6, B­1, folic acid, biotin and B2 vitamins were identified. In the Berberis integerrima acetic, ascorbic and malonic acids and biotin, folic acid and thiamin vitamins; and in the Berberis vulgaris malic, ascorbic and malonic acids and B­1, biotin and B­5 vitamins were dominant. In both cultivars fumaric acid, in the Berberis integerrima B2; and in the Berberis vulgaris folic acid had the least amounts. After the gamma processing in the Berberis integerrima, Malic (10 kGy), acetic (0.5 kGy) and ascorbic (10 kGy) acids and B5, biotin and B1 (0.5 kGy) vitamins; and in the Berberis vulgaris acetic (0.5 kGy), succinic (2.5 kGy) and malic (7.5 kGy) acids and B5 (10 kGy),B1 (1 kGy)and biotin (10 kGy) vitamins were the most.

کلیدواژه‌ها [English]

  • Barberry
  • Organic Acids
  • Water Soluble Vitamins
  • High Performance Liquid Chromatography (HPLC)
  • Gamma Irradiation
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