کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7584287 | 1492024 | 2018 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Hydrophilization of bixin by lipase-catalyzed transesterification with sorbitol
ترجمه فارسی عنوان
هیدروفلیز کردن بیکسین با ترانس اکسیداسیون لیپاز کاتالیز شده با سوربیتول
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
Bixin is one of the most used yellow-orange food colorants in the food industry. The polyene chain of bixin makes it highly hydrophobic and less suitable for water-based food formulations. Lipase-catalyzed reactions of bixin with sorbitol were studied to synthesize a new derivative of bixin with potential hydrophilic properties. Interestingly, we show that the lipase-catalyzed reaction of bixin leads to a transesterification reaction and formation of a transesterified product, sorbitol ester of norbixin (SEN). The reaction efficiency was optimized with various immobilized lipases at different water activity levels in the organic solvent, 2-methyl-2-butanol. Among the examined lipases, immobilized Candida antarctica lipase B (Novozyme 435) provided the highest reaction yield at a water activity close to zero. Tetrahydrofuran (THF) was used as co-solvent to improve bixin solubility. The optimization of the reaction conditions with 20% THF lead to a total reaction yield of 50% of SEN.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 268, 1 December 2018, Pages 203-209
Journal: Food Chemistry - Volume 268, 1 December 2018, Pages 203-209
نویسندگان
Amita Jahangiri, Anders Hauer Møller, Marianne Danielsen, Bjoern Madsen, Bjarne Joernsgaard, Signe Vaerbak, Patrick Adlercreutz, Trine Kastrup Dalsgaard,