Application of pulse electric field pretreatment for enhancing lipid extraction from Chlorella pyrenoidosa grown in wastewater

被引：63
|
作者：
Han, Song-Fang [1 ]
Jin, Wenbiao [1 ]
Yang, Qian [1 ]
Abomohra, Abd El-Fatah [1 ,2 ]
Zhou, Xu [1 ]
Tu, Renjie [1 ]
Chen, Chuan [3 ]
Xie, Guo-Jun [3 ]
Wang, Qilin [4 ]
机构：
[1] Harbin Inst Technol, Shenzhen Engn Lab Microalgal Bioenergy, Shenzhen 518055, Peoples R China
[2] Tanta Univ, Bot Dept, Fac Sci, Tanta 31527, Egypt
[3] Harbin Inst Technol, State Key Lab Urban Water Resource & Environm, Harbin 150090, Heilongjiang, Peoples R China
[4] Univ Technol Sydney, Sch Civil & Environm Engn, Ctr Technol Water & Wastewater, Sydney, NSW 2007, Australia
来源：
RENEWABLE ENERGY | 2019年 / 133卷
基金：
中国国家自然科学基金;
关键词：
Biodiesel; Microalgae; Pulsed electric field; Chlorella pyrenoidosa; Lipid extraction; CHLAMYDOMONAS-REINHARDTII; SCENEDESMUS-OBLIQUUS; ASSISTED EXTRACTION; BIOFUEL PRODUCTION; BIOMASS PRODUCTION; CELL-DISRUPTION; MICROALGAE; INACTIVATION; PARAMETERS; SOLVENT;
D O I：
10.1016/j.renene.2018.10.034
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Lipid extraction is a key step of biodiesel production from microalgae, however, the application of traditional extraction methods was limited due to the difficulties of cell disruption as well as solvent toxicity. In this work, pretreatment method using pulsed electric field (PEF), was primarily applied to lipid extraction process from microalgae Chlorella pyrenoidosa grown in wastewater. After the pretreatment with PEF, the yields of fatty acid methyl esters from C.pyrenoidosa was 12.0% higher than traditional pretreatment with ultrasonic. The results indicated that PEF was an effective method for cell disruption. Fluorescence staining and scanning electron microscopy showed that the integrity of the cell membrane of microalgae was damaged under pulsed electric field, which enhanced the penetration of solvents and lipid extraction. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：233 / 239
页数：7
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