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Iranian Journal of Chemistry and Chemical Engineering، جلد ۴۰، شماره ۵، صفحات ۱۴۲۱-۱۴۳۰
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عنوان انگلیسی Enzymatic Degumming of Soybean Oil by Immobilized Phospholipase A1 on Plasma Surface Modified Chitosan Nanofibrous Membrane
چکیده انگلیسی مقاله The paper presents the enzymatic degumming of soybean oil by immobilization of phospholipase A1 (PLA1) on atmospheric plasma surface modified chitosan nanofibrous membrane. As evidenced by Scanning Electron Microscopy (SEM) images, chitosan nanofibers exhibited a number of properties indicating this polymer as a good enzyme carrier. Fourier Transform InfraRed (FT-IR) spectroscopy showed the reaction between the enzyme and functional groups of chitosan nanofibers. The properties of immobilized PLA1 were compared to free PLA1 in order to evaluate the possibility of using the immobilized enzyme for the degumming of soybean oil. The pH tolerance and thermal stability of the immobilized PLA1 were significantly improved. In addition, the immobilized PLA1 can be easily recovered and retained at 80% of its initial activity after 10 times of recycling. The enzymatic degumming process was carried out at 60°C and pH 6.0. The residual phosphorus content decreased to 8.6 mg/kg after 6 h, which is to meet oil safety standards and suitable for the physical refining of soybean oil.
کلیدواژه‌های انگلیسی مقاله Enzymatic degumming,Phospholipase A1,Immobilization,Soybean oil,chitosan nanofibers
نویسندگان مقاله Zahra Beig Mohammadi |
Department of Food Science and Technology, North Tehran Branch, Islamic Azad University, Tehran, I.R. IRAN

Zohreh Hamidi Esfahani |
Food Science and Technology Department, Agriculture Faculty, Tarbiat Modares University, Tehran, I.R. IRAN

Mohamad Ali Sahari |
Food Science and Technology Department, Agriculture Faculty, Tarbiat Modares University, Tehran, I.R. IRAN

Kianoush Khosravi Darani |
Department of Food Technology Research, National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, P.O. Box 19395 Tehran, I.R. IRAN

نشانی اینترنتی https://ijcce.ac.ir/article_40607_35e4f3dfaa8060f166b54f9174beb220.pdf
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