کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10544108 | 963568 | 2005 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Extraction and assay of pectic enzymes from Peruvian carrot (Arracacia xanthorriza Bancroft.)
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Enzyme extraction processes were studied to evaluate the actual activity of pectinesterase (PE) and polygalacturonase (PG) from Peruvian carrot roots. Response surface methodology (RSM) was used to study the effect of NaCl concentration (from 0.5 to 1.5 M), the pH of the homogenate (from 4.0 to 8.0) and the extraction time (from 4 to 52 h) on enzyme activity of the crude extract. The results showed that best conditions for extracting pectic enzymes were 1.0 M NaCl, for 4 h, for both enzymes, whereas pH 7.5 and 4.0 were the appropriate parameters for extracting PE and PG, respectively.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 89, Issue 1, January 2005, Pages 85-92
Journal: Food Chemistry - Volume 89, Issue 1, January 2005, Pages 85-92
نویسندگان
Tatiana da Costa Raposo Pires, Flavio Finardi-Filho,