کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10236370 | 45144 | 2005 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Determination of the hydrolytic activity of Achatina achatina β-glucosidease toward some cyanogenic glycosides of some tropical plants
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بیو مهندسی (مهندسی زیستی)
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
The quantitative cyanide liberation resulting from hydrolysis of the cyanogenic glycosides of some edible tropical cyanophoric plants by a β-glucosidase enzyme prepared from African giant snail (Achatina achatina) was studied spectrophotometrically. The results were compared with that obtained with cassava linamarase that has relatively the same unit of activity. The quantitative yield of HCN equivalent from fresh cassava root pulp following incubation with A. achatina β-glucosidase (4.7 units mlâ1) was 1.65-14.46 mg CNâ100 gâ1 fresh weight (for 10 different cassava cultivars) and 1.67-14.17 mg CNâ100 gâ1 fresh weight when incubated with cassava linamarase (5.0 units mlâ1) under the same assay conditions. There was no statistically significant differences (P > 0.01) between the hydrolytic activities of these two β-glucosidases towards the cyanogenic glycosides of cassava, lima beans, wheat and standard linamarin. These results strongly indicate that A. achatina is another good source of β-glycosidase with high hydrolytic activity towards cyanogenic glycosides of some plants including cassava.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Process Biochemistry - Volume 40, Issue 5, April 2005, Pages 1579-1582
Journal: Process Biochemistry - Volume 40, Issue 5, April 2005, Pages 1579-1582
نویسندگان
P.N. Okafor,