title: Changes in lipid composition, fatty acid profile and lipid oxidative stability during Cantonese sausage processing.
abstract: Lipid composition, fatty acid profile and lipid oxidative stability were evaluated during Cantonese sausage processing. Free fatty acids increased with concomitant decrease of phospholipids. Total content of free fatty acids at 72 h in muscle and adipose tissue was 7.341 mg/g and 3.067 mg/g, respectively. Total amount of saturated, monounsaturated and polyunsaturated fatty acids (SFA, MUFA, and PUFA) in neutral lipid exhibited a little change during processing, while the proportion of PUFA significantly decreased in the PL fraction. The main triacylglycerols were POO+SLO+OOO, PSO (P = palmitic acid, O = oleic acid, L = linoleic acid, S = stearic acid), and a preferential hydrolysis of palmitic, oleic and linoleic acid was observed. Phosphatidylcholines (PC) and phosphatidylethanolamines (PE) were the main components of phospholipids and PE exhibited the most significant degradation during processing. Thiobarbituric acid values (TBARS) increased while peroxide values and hexanal contents varied during processing.
authors.affiliation: College of Light Industry and Food Sciences, South China University of Technology, Guangzhou 510640, China.
authors.forename: Chaoying
authors.initials: C
authors.lastname: Qiu
authors.forename: Mouming
authors.initials: M
authors.lastname: Zhao
authors.forename: Weizheng
authors.initials: W
authors.lastname: Sun
authors.forename: Feibai
authors.initials: F
authors.lastname: Zhou
authors.forename: Chun
authors.initials: C
authors.lastname: Cui
mesh_terms: D000273:Adipose Tissue / Q000378:metabolism; D000818:Animals; D004041:Dietary Fats / Q000378:metabolism*; D005227:Fatty Acids / Q000378:metabolism*; D005230:Fatty Acids, Nonesterified / Q000378:metabolism; D005511:Food Handling; D015227:Lipid Peroxidation; D008461:Meat Products / Q000032:analysis*; D018482:Muscle, Skeletal / Q000378:metabolism; D010545:Peroxides / Q000378:metabolism; D010713:Phosphatidylcholines / Q000378:metabolism; D010714:Phosphatidylethanolamines / Q000378:metabolism; D010743:Phospholipids / Q000378:metabolism*; D013552:Swine; D017392:Thiobarbituric Acid Reactive Substances; D014280:Triglycerides / Q000378:metabolism*
chemical_list: D004041:Dietary Fats; D005227:Fatty Acids; D005230:Fatty Acids, Nonesterified; D010545:Peroxides; D010713:Phosphatidylcholines; D010714:Phosphatidylethanolamines; D010743:Phospholipids; D017392:Thiobarbituric Acid Reactive Substances; D014280:Triglycerides