摘要
以玉米油为原料,研究水蒸气蒸馏脱臭过程以及脱臭条件对玉米油中3-氯丙醇酯和缩水甘油酯生成的影响。结果表明:脱臭过程造成3-氯丙醇酯和缩水甘油酯含量的大幅升高,脱臭温度越高、脱臭时间越长,3-氯丙醇酯和缩水甘油酯的增加量越大,其中脱臭温度比脱臭时间对二者生成的影响更大;在脱臭温度不超过230℃时,60~120 min的脱臭时间,3-氯丙醇酯含量仅增加了0.047~2.581 mg/kg,缩水甘油酯含量仅增加了0.300~3.883 mg/kg,当脱臭温度达到250℃时,即使脱臭时间仅为60 min,3-氯丙醇酯和缩水甘油酯含量均显著升高了5.039 mg/kg和8.354mg/kg,尤其在270℃、120 min的极限脱臭条件下,3-氯丙醇酯和缩水甘油酯含量更是分别上升至13.004 mg/kg和34.864 mg/kg,达到待脱臭玉米油中其含量的4倍和15倍左右。为防范和控制玉米油脱臭过程3-氯丙醇酯和缩水甘油酯的生成,降低脱臭温度是非常必要的。
The effects of steam distillation deodorization process and deodorization conditions on the formation of 3-MCPD esters and glycidol esters were studied with corn oil as raw material. The results showed that the contents of 3-MCPD esters and glycidol esters increased significantly during the deodorization process. With the higher deodorization temperature and the longer deodorization time, the amount of 3-MCPD esters and glycidol esters had the larger increase. The deodorization temperature had a greater influence on the formation of the two constituents than the deodorization time. Under the conditions of deodorization temperature not exceeding 230？℃ and deodorization time 60-120 min, the content of 3-MCPD esters merely increased by 0.047-2.581 mg/kg and the glycidol esters content rised barely by 0300-3.883 mg/kg. While when the deodorization temperature was 250？℃, even 60 min was applied for the deodorization, the contents of 3-MCPD esters and glycidol esters significantly increased by 5.039 mg/kg and 8.354 mg/kg, respectively. Especially in the limiting deodorization conditions of 270？℃and 120 min, the contents of 3-MCPD esters and glycidol esters in corn oil were up to 13.004 mg/kg and 34864 mg/kg, nearly 4 times and 15 times of the original level. In order to prevent and control the formation of 3-MCPD esters and glycidol esters during the deodorization process, it was necessary to reduce the deodorization temperature.
作者
任我行
刘玉兰
马宇翔
王风艳
王满意
魏安池
REN Woxing;LIU Yulan;MA Yuxiang;WANG Fengyan;WANG Manyi;WEI Anchi(College of Food Science and Technology, Henan University of Technology, Zhengzhou 450001, China;COFCO Nutrition ＆ Health Research Institute, Beijing 102209, China)
出处
《中国油脂》
CAS
CSCD
北大核心
2018年第4期57-60,共4页
China Oils and Fats
基金
"十三五"国家重点研发计划支持项目(2016YFD0401405)
