| 吴芷馨，曾俞霖，陈骋，俞秋燕，刘青，周晓见，靳翠丽.不同盐度对两株盐藻脂质合成
及生物燃料生产的影响[J].中国油脂,2025,50(5):.[WU Zhixin, ZENG Yulin, CHEN Cheng, YU Qiuyan,
LIU Qing, ZHOU Xiaojian, JIN Cuili.Effect of different salinity on the lipid synthesis and biofuel production of two Dunaliella strains[J].China Oils and Fats,2025,50(5):.] |
| 不同盐度对两株盐藻脂质合成
及生物燃料生产的影响 |
| Effect of different salinity on the lipid synthesis and biofuel production of two Dunaliella strains |
| |
| DOI：10.19902/j.cnki.zgyz.1003-7969.240208 |
| 中文关键词: 盐藻 盐度 脂质 脂肪酸 生物燃料 |
| 英文关键词:Dunaliella salinity lipid fatty acid biofuel |
| 基金项目:国家自然科学基金（42177459）；江苏省大学生创新创业训练计划（202311117097Y） |
|
| Author Name | Affiliation | | WU Zhixin, ZENG Yulin, CHEN Cheng, YU Qiuyan,
LIU Qing, ZHOU Xiaojian, JIN Cuili | College of Environmental Science and Engineering, Yangzhou University,
Yangzhou 225127, Jiangsu, China |
|
| 摘要点击次数: 2 |
| 全文下载次数: 0 |
| 中文摘要: |
| 为了筛选出生产生物燃料的优质藻种，采用不同盐度培养巴达维盐藻和杜氏盐藻，分析盐度对两种盐藻生长、生物质合成和生产生物柴油性能的影响。结果表明：巴达维盐藻和杜氏盐藻均在低盐度（15~30 g/L）时生长和生物量积累最快；均在盐度30 g/L时比生长速率最高，分别为 0.18 d-1和0.09 d-1；均在盐度15 g/L时生物量、脂质含量、碳水化合物含量最高，分别为1 716.67 mg/L和494.85 mg/L、344.75 mg/L和107.75 mg/L、651.60 mg/L和130.52 mg/L；两株盐藻脂质的脂肪酸组成不同，但均以α-亚麻酸为主；在盐度15~30 g/L时，两株盐藻脂质生产的生物柴油燃烧性能和氧化稳定性较高，但低温流动性低于其他盐度的。综上，利用盐藻适应高盐环境的特性，可在高盐水中实现微藻生物燃料物质的高效生产，且巴达维盐藻的生物量、脂质含量和碳水化合物含量、生产的生物柴油低温流动性以及对盐度的适应范围，均优于杜氏盐藻，是极具潜力的生物燃料生产藻种。 |
| 英文摘要: |
| In order to screen out high quality algae species for biofuel production, different salinities were used to cultivate D.bardawil and D.salina to analyze the effects of salinity on the growth, biomass synthesis and performance of the two species of Dunaliella for biodiesel production. The results showed that the optimum salinity for the growth and biomass accumulation of both Dunaliella strains was low salinity of 15-30 g/L. D.bardawil and D.salina obtained the highest specific growth rates of 0.18 d-1 and 009 d-1 at a salinity of 30 g/L, respectively. The highest biomass, lipid content, and carbohydrate content of 1 716.67 mg/L and 494.85 mg/L, 344.75 mg/L and 107.75 mg/L, and 65160 mg/L and 130.52 mg/L, respectively, were found in both strains of D.bardawil and D.salina at a salinity of 15 g/L. The fatty acid composition of the lipids of the two strains of Dunaliella differed, but both were dominated by α-linolenic acid. The salinity of 15-30 g/L improved the combustion performance and oxidation stability of biodiesel produced from two strains at the cost of the slight loss of the low-temperature fluidity. In conclusion, the halotolerant nature of Dunaliella species enables efficient biofuel synthesis in hypersaline aquatic environments. D.bardawil emerges as a prime algal candidate for hypersaline-adapted biofuel production due to its higher biomass, lipid content, carbohydrate content, low-temperature fluidity of biodiesel as well as its adaptability to salinity compared to those of D.salina. |
| 查看全文 查看/发表评论 下载PDF阅读器 |
| 关闭 |
|
|
|
