两种耐盐藻类，巴氏杜氏藻和盐生杜氏藻脂质成分的比较研究。

Comparative study of lipid composition of two halotolerant alga, Dunaliella bardawil and Dunaliella salina.

作者信息

Vanitha A, Narayan M S, Murthy K N C, Ravishankar G A

机构信息

Plant Cell Biotechnology Department, Central Food Technological Research Institute, Mysore, India.

出版信息

Int J Food Sci Nutr. 2007 Aug;58(5):373-82. doi: 10.1080/09637480701252252.

DOI:10.1080/09637480701252252

PMID:17558729

Abstract

The composition of polar, neutral and glycolipid fractions of two halotolerant algae, Dunaliella salina and Dunaliella bardawil, which are exclusively used for the production of beta-carotene was determined in modified medium. In D. salina the glycolipid fraction accounted to 28%, in comparison with 40% of D. bardawil. However, in D. salina the polar lipid was 42% compared with D. bardawil at 24%. The glycolipid fraction of D. bardawil was rich in linolenic acid (81%). In both the species we could find elongation in the fatty acids from C(16) to C(20) to C(22) and the percentage was higher than the earlier reports (>3%). The polar lipid fraction was composed of (in descending order) phosphatidyl glycerol, phosphatidic acid, phosphatidic ethanolamine, phosphatidyl choline and phosphatidyl glycerol and the neutral lipid fraction, which was rich in monoglycerides and diglycerides and diacylglycero-trimethylhomoserine.

摘要

在改良培养基中测定了两种仅用于生产β-胡萝卜素的耐盐藻类——盐生杜氏藻和巴氏杜氏藻的极性、中性和糖脂部分的组成。在盐生杜氏藻中，糖脂部分占28%，相比之下，巴氏杜氏藻为40%。然而，盐生杜氏藻的极性脂质为42%，而巴氏杜氏藻为24%。巴氏杜氏藻的糖脂部分富含亚麻酸（81%）。在这两个物种中，我们都发现脂肪酸从C(16)延伸至C(20)再到C(22)，且该百分比高于早期报告（>3%）。极性脂质部分由（按降序排列）磷脂酰甘油、磷脂酸、磷脂酰乙醇胺、磷脂酰胆碱和磷脂酰甘油组成，中性脂质部分富含甘油单酯、甘油二酯和二酰基甘油 - 三甲基高丝氨酸。