کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7590604 1492103 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Tubular cellulose/starch gel composite as food enzyme storehouse
ترجمه فارسی عنوان
کامپوزیت ژل سلولز / نشاسته لوله ای به عنوان انبار آنزیم غذایی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی
The objective of this study was to produce a composite biocatalyst, based on porous cellulosic material, produced after wood sawdust delignification (tubular cellulose; TC) and starch gel (SG), for the development of bioprocesses related to enzyme applications. The composite biocatalyst was studied by Scanning Electron Microscopy to observe the SG deposition in the TC pores, and porosimetry analysis to determine the average pore diameter and surface area. The deposition of SG into the TC tubes provided a TC/SG composite with reduced pore sizes. X-ray powder diffractometry showed a decrease of crystallinity with increased SG ratio in the composite. The composite was used as an insoluble carrier for entrapment of the dairy enzyme rennin, leading to the production of an active biocatalyst for milk coagulation (initiation of milk clotting at about 20 min and full coagulation at about 200 min), creating perspectives for several applications in food enzyme research and technology.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 188, 1 December 2015, Pages 106-110
نویسندگان
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