当前位置: X-MOL 学术Iran. J. Sci. Technol. Trans. Sci. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Effects of Environmental Pollutants on the Growth Characteristics, Oxidative Stress and Biochemical Composition of Nannochloropsis salina for Biodiesel Production
Iranian Journal of Science and Technology, Transactions A: Science ( IF 1.7 ) Pub Date : 2020-05-17 , DOI: 10.1007/s40995-020-00881-9
Soad M. Mohy El-Din

The endocrine-disrupting compounds, nonylphenol and bisphenol attracted much attention because of their estrogenic activity and widespread environmental distribution. The toxicity and cellular stresses of nonylphenol and bisphenol to Nannochloropsis salina were investigated. Both nonylphenol and bisphenol showed inhibited growth of N. salina, but with different degrees, in which the effective concentrations of nonylphenol 1.5 mg/l and bisphenol 10 mg/l for 5 days. Oxidative stress was induced in algal study when exposed to both endocrine-disrupting compounds as evidenced by increased malondialdehyde content than in untreated cells. Exposure also resulted in an over-expression of oxidative stress parameters was significantly affected, showing an increase in the antioxidant activities (catalase, superoxide dismutase and ascorbate peroxidase) and oxidative damage to lipids. On the other side, the profile of fatty acid methyl esters (biodiesel) has been identified as: C14:0, C16:0, C16:1, C16:2, C18:0, C18:1, C18:2, C18:3, C20:4 and C20:5. The data exhibited a clear significant effect, positively under the oxidative stress of nonylphenol and bisphenol. From the present study, we concluded that endocrine-disrupting compounds and its oxidative stress efficiently increased the individual fatty acids to meet the biodiesel standards, so the promising biodiesel feedstock from Nannochloropsis salina. Also, the oxidative stress directly affected morphological and ultrastructure of cells.

中文翻译:

环境污染物对拟南芥生产生物柴油的生长特性,氧化胁迫和生化组成的影响

破坏内分泌的化合物壬基酚和双酚由于其雌激素活性和广泛的环境分布而备受关注。研究了壬基酚和双酚对拟南芥盐酸盐的毒性和细胞胁迫。壬基酚和双酚均显示出盐沼猪笼草的生长受到抑制,但在不同程度上,其中壬基酚1.5 mg / l和双酚10 mg / l的有效浓度持续5天。当暴露于两种破坏内分泌的化合物时,藻类研究诱导了氧化应激,丙二醛含量比未处理的细胞增加,证明了氧化应激。暴露还导致氧化应激的过表达受到显着影响,显示抗氧化活性(过氧化氢酶,超氧化物歧化酶和抗坏血酸过氧化物酶)增加和脂质的氧化损伤。另一方面,脂肪酸甲酯(生物柴油)的特征已确定为:C14:0,C16:0,C16:1,C16:2,C18:0,C18:1,C18:2,C18: 3,C20:4和C20:5。数据显示出明显的显着影响,在壬基酚和双酚的氧化胁迫下具有积极作用。根据目前的研究,拟南芥盐沼。同样,氧化应激直接影响细胞的形态和超微结构。
更新日期:2020-05-17
down
wechat
bug