کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1383247 1500637 2015 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Preparation and characterization of aqueous dispersions of dextrin and policosanol composites
ترجمه فارسی عنوان
تهیه و مشخص نمودن پراکندگی های آبپاش کامپوزیت های دکسترول و پیکوسانوول
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آلی
چکیده انگلیسی


• Dispersing policosanol in aqueous media by formation of V-amylose complex with dextrin.
• Dextrin also acted as thickening agent to stabilize the policosanol in the aqueous media.
• Dispersing around 95% policosanol from the optimized reaction condition.

Policosanol (50–100 mg) was dispersed in an aqueous solution (0.5–2.0% solids, w/v, 50 mL) of an amylomaize starch dextrin at 90 °C under different conditions. The dispersion of the mixture was opaque but remained homogenous for up to 7 days at an ambient temperature. The precipitates obtained by centrifuging the dispersion (5000 × g, 30 min) contained crystalline V-amylose complex of policosanol. The supernatant also contained policosanol but not in the complex form. Stepwise addition of policosanol and longer time complex formation increased the dispersible policosanol: about 95% by 30 min interval, 1.0% dextrin solution and 12 h complex formation time. Among the dispersible policosanol (95%), 70% policosanol resided in the precipitates and 25% was in the supernatant, indicating the dextrin behaved as a stabilizer for the dispersed policosanol as well as a complex forming agent with policosanol. The policosanol dispersion was sonicated up to 30 s to evaluate physical stability. Around 70% policosanol in the dispersion remained stable against the sonication treatment.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Carbohydrate Polymers - Volume 121, 5 May 2015, Pages 140–146
نویسندگان
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