کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7792457 1500656 2014 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Characteristics of starch isolated from maize as a function of grain storage temperature
ترجمه فارسی عنوان
ویژگی های نشاسته جدا شده از ذرت به عنوان عملکرد دما ذخیره سازی دانه
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی
Considering the importance of maize starch and the lack of knowledge about the effects of storage temperature on the isolated starch properties; maize grains were stored during 12 months at different temperatures (5, 15, 25 and 35 °C). The extraction yield and the physicochemical, thermal, pasting, crystallinity and morphological properties of starches were determined. The starch isolated from grains stored at 35 °C was yellowish and showed a 22.1% decrease in starch extraction yield compared to freshly harvested maize grains. At 35 °C, a reduction in crystallinity was observed by the end of 12 months, despite a parallel rearrangement of the starch chains which resulted in an increase in X-ray peak intensities, gelatinisation temperatures and enthalpy. The starch isolated from maize grains stored at 35 °C appears to have smaller granules, which presents some points in their surface, potentially attributed to the protein matrix compressing the granules within maize grains.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 102, 15 February 2014, Pages 88-94
نویسندگان
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