Ultrasonic Pretreatment in Synthesis of Caprylic-Rich Structured Lipids by Lipase-Catalyzed Acidolysis of Corn Oil in Organic System and Its Physicochemical Properties.
作者： Chonghui Yue , Hongyan Ben , Junwen Wang , Tiantian Li , Guoping Yu
DOI: 10.3390/FOODS8110566
关键词:
摘要: The current work was to evaluate the lipase-catalyzed acidolysis of corn oil with caprylic acid (CA) in organic system under bath ultrasonic pretreatment and analyze physicochemical properties structured lipids (SLs). Under optimum conditions (Novozym 40086 lipase, 200 W ultrasound power, 10 min time, 12% dosage Triacylglycerol (TAG)/Free fatty acids (FFA): 1/8, 40 °C for 6 h), a 45.55% CA incorporation obtained (named SLs-U). highest 32.75% conventional method at reaction time h SLs-N). predominant TAG types SLs were MLM (medium-, long- medium-chain-type TAGs) MLL long-chain-type TAGs). X-ray diffraction analysis revealed that both SLs-U SLs-N present β form. Differential scanning calorimetry (DSC) showed show lower melting crystallization temperature than oil. This study suggested can accelerate synthesis an system, two kinds similar properties.
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