کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1183944 1492084 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Parameters affecting enzyme-assisted aqueous extraction of extruded sunflower meal
ترجمه فارسی عنوان
پارامترهای موثر بر جذب آب آنزیمی آرد آفتابگردان اکسترود شده
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
چکیده انگلیسی


• Study AEP/EAEP with the assistance of protease and cellulase.
• Microscopic observations indicates key differences from mechanisms of AEP and EAEP.
• Emulsification is an extraction mechanism for AEP/EAEP of extruded sunflower meal.
• The factors affecting the emulsification conditions influence extraction yield.

Microscopic observation of sunflower meal before and after extraction indicated that extensive cellular disruption was achieved by extrusion, but that unextracted oil remained sequestered as coalesced oil within the void spaces of disrupted cotyledon cells. A full factorial design experiment was defined to develop aqueous extraction processing (AEP) with and without enzymes to improve vegetable oil extraction yields of extruded sunflower meal. This experimental design studied the influence of four parameters, agitation, liquid/solid (L/S) ratio, and cellulase and protease addition, on extraction yield of lipid and protein. Agitation and addition of cellulases increased oil extraction yield, indicating that emulsification of oil and alteration of the geometry of the confining cellular matrix were important mechanisms for improving yields. Protease and liquid-solid ratio of the extraction mixture did not have significant effects, indicating key differences with previously established soy oil extraction mechanisms. Maximum yields attained for oil and protein extraction were 39% and 90%, respectively, with the aid of a surfactant.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 208, 1 October 2016, Pages 245–251
نویسندگان
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