tailieunhanh - Protein and lipid recovery from tuna head using industrial protease

The purpose of this work was to study protein and lipid recovery from yellowfin tuna head by enzymatic hydrolysis as well as to analyse the amino acid compositions in tuna head protein hydrolysate and the fatty acid compositions in tuna head oil. | J. Sci. Devel. Vol. 11 No. 8 1150-1158 Tạp chí Khoa học và Phát triển 2013 tập 11 số 8 1150-1158 PROTEIN AND LIPID RECOVERY FROM TUNA HEAD USING INDUSTRIAL PROTEASE Nguyen Thi My Huong Faculty of Food Technology - Nha Trang University Email huongdhts@ Received date Accepted date ABSTRACT Protein and lipid recovery from yellowfin tuna heads by enzymatic hydrolysis was studied. Hydrolysis of tuna head was carried out using Protamex at 45 C without pH control for 120 minutes with a water material ratio of 1 1 ml g . Nitrogen recovery amino acid composition of protein hydrolysate lipid recovery and fatty acid composition of fish oil obtained from hydrolysis of tuna heads were determined. Results showed that after 120 minutes of hydrolysis the nitrogen and lipid recoveries were and respectively. Protein hydrolysate from yellowfin tuna heads had of 80 protein lipid and ash. Protein hydrolysate had high content of essential amino acids . The fish oil obtained from hydrolysis of tuna heads was rich in omega-3 fatty acids especially docosahexaenoic acid DHA and eicosapentaenoic acid EPA . The content of omega-6 fatty acids was . Fatty acids with high contents in tuna head oil were palmitic acid oleic acid and docosahexaenoic acid . Key words Enzymatic hydrolysis protein hydrolysate protein and lipid recovery tuna head. Thu hồi protein và lipit từ đầu cá ngừ bằng enzyme protease công nghiệp TÓM TẮT Sự thu hồi protein và lipit từ đầu cá ngừ vây vàng theo phương pháp thuỷ phân bằng enzyme đã được nghiên cứu. Sự thuỷ phân đầu cá ngừ được thực hiện bằng Protamex 0 5 ở nhiệt độ 45 C không điều chỉnh pH trong thời gian 120 phút tỉ lệ nước nguyên liệu là 1 1 ml g . Hiệu suất thu hồi nitơ thành phần axit amin của sản phẩm thuỷ phân protein hiệu suất thu hổi lipit và thành phần axit béo của dầu cá thu được từ sự thuỷ phân đầu cá ngừ đã được xác định. Kết quả đã chỉ ra rằng sau 120 .

• Sinh học
• Enzymatic hydrolysis
• Protein hydrolysate
• Protein and lipid recovery
• Đầu cá ngừ
• Sản phẩm thuỷ phân protein
• Thuỷ phân bằng enzyme
• Shrimp by product
• Protein hydrolysis
• Degree of hydrolysis
• Shrimp sauce production
• Enzymatic hydrolysis process
• Enzymatic hydrolysis of coconut oil
• Immobilized porcine pancreas lipase
• Free porcine pancreas lipase
• The hydrolysis of coconut oil
• Evaluate the effect
• Fishoil extraction
• Oil recovery
• Yellowfin tuna head
• Hydrolysis process
• Scientific reports
• scientific research
• biochemistry
• Antimicrobial
• biosynthesis
• Enzymatic hydrolysis of starch granules
• Preparation of annealed starch
• Starch morphology
• Thermal properties
• X ray diffraction
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• Phytic acid
• Enzymatic activity
• Phytate hydrolysis
• Zymogram analysis of phytase
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• Chất enzyme Flavourzyme
• Điều kiện thủy phân thích hợp cho Flavourzyme
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• Acetes japonicus
• Antioxidant activity
• Enzyme type
• White leg shrimp head
• Litopenaeus vannamei
• BMC Biotechnology
• Pullulanase type I
• Paenibacillus polymyxa
• Cold adapted pullulanase
• Functional expression
• Enzymatic properties
• Starch hydrolysis products
• BMC Chemistry
• Acid hydrolysis
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• Xylitol yield
• Plant biomass
• Biotechnological processes
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• Full grade animal protein
• Insignificant amount of fat
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• Barley beta glucan