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超临界CO2萃取甜瓜籽油工艺及其脂肪酸组成分析
Supercritical CO2 extraction and fatty acid composition of melon seed oil
  
DOI：
中文关键词:  超临界CO2萃取  甜瓜籽油  GC-MS  脂肪酸
英文关键词:supercritical CO2 extraction  melon seed oil  GC-MS  fatty acid
基金项目:
Author NameAffiliation
GULMIRA Kahar  
ZHANG Junping  
GULNAR Kasim，etc  
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中文摘要:
      采用超临界CO2萃取技术提取甜瓜籽油，在单因素实验的基础上，运用正交实验设计优化工艺条件。结果表明超临界CO2萃取甜瓜籽油的最佳工艺条件为：萃取压力30 MPa，萃取温度45℃，萃取时间5 h，CO2流量8 L/min，甜瓜籽粉碎粒度24目。在最佳条件下，甜瓜籽油得率为29.34%。利用GC-MS对甜瓜籽油脂肪酸组成进行分析，结果表明超临界CO2萃取的甜瓜籽油共鉴定出12种脂肪酸，其中饱和脂肪酸以棕榈酸(10.87%)、硬脂酸（5.57%）为主，不饱和脂肪酸以亚油酸（64.29%）、油酸（16.64%）为主。
英文摘要:
      Melon seed oil was extracted by supercritical CO2 extraction technology. Based on the single factor experiment, orthogonal experimental design was employed to optimize process parameters. The results showed that the optimal extraction conditions were obtained as follows: extraction pressure 30 MPa, extraction temperature 45℃, extraction time 5 h, flow rate of CO2 8 L/min, particle size of melon seed 24 meshes. Under these conditions, the yield of melon seed oil was 29.34%. Fatty acid composition of melon seed oil was identified by GC-MS, and the results indicated that melon seed oil extracted by supercritical CO2 contained twelve kinds of fatty acids, and linoleic acid (64.29%), oleic acid (16.64%), palmitic acid (10.87%) and stearic acid (5.57%) were the main fatty acids in melon seed oil.
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