The influences of alginate concentration, types of co-polymer and their concentrations on the mean diameter, yield, microencapsulation efficiency, leakage and storage stabilities of encapsulated protease and lipolase beads were studied. A solution of protease from Aspergillus oryzae and lipolase from Thermomyces lanuginosus were encapsulated in calcium alginate/chitosan beads (CACB), calcium alginate/xanthan gum beads (CAXB), and calcium alginate/maltodextrin beads (CAMB) using the inotropic gelation and extrusion methods. The mean diameter, yield and microencapsulation efficiency of protease and lipolase encapsulated were increased and leakage was decreased while storage stability was no significant difference when alginate concentration increases from 1.5 to 2.0% and polymer concentration increases from 0.2 to 0.4%. In addition, protease encapsulated in CACB with 2.0% alginate and 0.2% chitosan provided the highest yield and microencapsulation efficiency, which were 81.66% and 77.20%, respectively; the mean diameter of protease-CACB was 1.85 mm with the leakage was as low as 8.13%; and the protease-CACB activity remained 75.6% after storage at 4oC for 10 weeks. Lipolase encapsulated in CAXB with 2.0% alginate and 0.4% xanthan gum provided the highest yield and microencapsulation efficiency, which were 42.45% and 43.86%, respectively; and the mean diameter of lipolase-CAXB was 1.81 mm with the leakage was as low as 6.24%. Furthermore, the lipolase-CAXB activity was 77.94% after storage at 4oC for 10 weeks.
Tạp chí: The 2nd International Symposium on Formulation of the cooperation hub for global environmental studies in Indochina region & The 9th Inter-University Workshop on Education and Research Collaboration in Indochina Region September 27, 2014, Can Tho, VN
Tạp chí: The international conference on Aquaculture and enviroment: a focus in the Mekong Delta, Viet Nam- held at Can Tho city, Viet Nam from April 3rd to 5 th, 2014
Tạp chí: Aquaculture and Environment: A focus in the Mekong Delta, Vietnam, Địa điểm: Trường Đại học Cần Thơ, Thời gian tổ chức: Ngày 3-5 tháng 4 năm 2014
Tạp chí: International fisheries symposium 2014- Development of fisheries and marine technology for suistainable biodiversity conservation and responsible aquaculture industries-30-31 October 2014. JW Marriott Hotel, Surabaya- Indonesia
Tạp chí khoa học Trường Đại học Cần Thơ
Lầu 4, Nhà Điều Hành, Khu II, đường 3/2, P. Xuân Khánh, Q. Ninh Kiều, TP. Cần Thơ
Điện thoại: (0292) 3 872 157; Email: tapchidhct@ctu.edu.vn
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