کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1986293 1540243 2015 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Physicochemical properties of native and γ-irradiated wild arrowhead (Sagittaria sagittifolia L.) tuber starch
موضوعات مرتبط
علوم زیستی و بیوفناوری بیوشیمی، ژنتیک و زیست شناسی مولکولی زیست شیمی
پیش نمایش صفحه اول مقاله
Physicochemical properties of native and γ-irradiated wild arrowhead (Sagittaria sagittifolia L.) tuber starch
چکیده انگلیسی

Starch isolated from wild arrowhead tuber was treated by γ-irradiation at 0, 5, 10 and 15 kGy doses. Arrowhead tubers yielded 40.33% starch and its chemical composition revealed moisture, protein, ash and fat were 8.34 ± 0.09%, 0.26 ± 0.04%, 0.58 ± 0.02% and 0%, respectively. Physicochemical, morphological and pasting properties of native and irradiated tuber starches were investigated. The results showed that peak, trough, final, and setback viscosities were significantly (p ≤ 0.05) reduced, whereas the breakdown viscosity increased following irradiation. Physicochemical properties differed significantly and showed strong dose dependent relationship. Solubility, water absorption capacity and transmittance increased, whereas swelling power, bulk density and syneresis decreased upon increase in irradiation of starch. Correlation studies showed that irradiation dose was positively correlated with water absorption capacity and solubility index while it correlated negatively with pasting properties, swelling index, syneresis, and freeze thaw stability.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Biological Macromolecules - Volume 77, June 2015, Pages 360–368
نویسندگان
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