摘要
文章考察了Lipozyme TL IM脂肪酶在无溶剂条件下,催化棕榈油硬脂与棕榈油软脂的酯交换。混合油为棕榈油硬脂和棕榈油软脂的比例为75∶25,脂肪酶的添加量为油重量的4%,酶催化反应的操作温度为70℃,反应时间为20 h。酯交换产物的氧化稳定性更高,SFC35℃降低了24.79%,改善了酯交换油的打发性,提高了人造黄油的可操作性及口感。
A study was carried out on the transesterification between palm oil stearine fraction and palm oil olein fraction that catalized by Lipozyme TL IM under no solvent condition.The ratio of palm oil stearine fraction to palm oil olein fraction in the oil mixture was 75：25,the content of lipase 4 % based on the oil weight,the operation temperature of enzyme catalytic reaction was 70 ℃ and reaction time last for 20 h.The oxidization stability of transesterification product was much higher,the SFC35 ℃decreased 24.79 %,the whipping property of transesterification oil increased the operability and mouth feel of margarine.
出处
《广东化工》
CAS
2012年第8期41-42,共2页
Guangdong Chemical Industry
基金
广州市科技型中小企业创新基金项目(2011J4200034)
广州市白云区科技计划项目(2011-KZ-55)
关键词
脂肪酶
酯交换
棕榈油
人造奶油基料
lipase
transesterification
palm oil
margarine base material
