کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5156753 | 1500580 | 2017 | 31 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Morphological, structural and functional properties of starch granules extracted from the tubers and seeds of Sphenostylis stenocarpa
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موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
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چکیده انگلیسی
Sphenostylis stenocarpa (Hochst. ex A. Rich.) Harms, is a legume widely recognized in Africa for its edible starchy tuber and seeds. In the present morphological, structural and functional properties of starch extracted from the tubers and seeds of a same accession of this plant were characterized and compared. With smaller and more angular granules, tuber starch displayed higher resistance toward amylolysis and gelatinization than seed starch. The amylolysis of seed starch resulted in fragmented granules with typical layered structures of growth rings. During their hydrothermal treatments, both tuber and seed starches showed condensed ghosts even at 95 °C. This high resistance toward hydrothermal degradation was considered as the basis of the typical pasting properties of these two materials. Both seed and tuber starch exhibited A-type crystalline pattern. Under non-oxidative combustion tuber starch presented a degradation peak at 310 °C while seed starch was degraded around 302 °C.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 178, 15 December 2017, Pages 286-294
Journal: Carbohydrate Polymers - Volume 178, 15 December 2017, Pages 286-294
نویسندگان
Paul Malumba, Lynn Doran, Wilfried Zanmenou, Sylvanus Odjo, Joseph Katanga, Christophe Blecker, François Béra,