کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7790304 | 1500643 | 2015 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modulation in the rheological behaviour of porcine pepsin treated guar galactomannan on admixture with κ-carrageenan
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آلی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The non-specific action of pepsin on guar galactomannan (GG) resulted in selective removal of galactose residues, leading to the formation of galactose - depleted guar galactomannan (GDGG) with decrease in Mw and change in G: M ratio of 1:3.4, thus mimicking that of locust bean gum (LBG). Admixture of GDGG with κ-carrageenan revealed a two fold increase in the magnitude of elasticity (Gâ²) compared to κ-carrageenan alone, suggesting a synergistic interaction similar to LBG with κ-carrageenan. Blends of GDGG and LBG with κ-carrageenan at a concentration of 40% (w/w, 0.8% total biopolymer) showed a maximum increase in Gâ². The GDGG/κ-carrageenan blend also showed a Tm of 47 °C, similar to LBG/κ-carrageenan blend. Thus, debranching of guar galactomannan by the catalytic action of pepsin is beneficial for improved functional properties and diversified applications.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 115, 22 January 2015, Pages 253-259
Journal: Carbohydrate Polymers - Volume 115, 22 January 2015, Pages 253-259
نویسندگان
Shobha S. Mysore, Tharanathan N. Rudrapatnam,