Hydrothermal cell disruption of Nannochloropsis sp and its influence on lipid extraction

被引：16
|
作者：
Qu, Zhi [1 ]
Zeng, Jianli [2 ]
Zhang, Yuanhui [3 ]
Liao, Qiang [4 ]
Sharma, Brajendra K. [5 ]
Fu, Qian [4 ]
Huang, Yun [4 ]
Liu, Zhidan [1 ]
机构：
[1] China Agr Univ, Coll Water Resources & Civil Engn, Minist Agr, Lab Environm Enhancing Energy E2E,Key Lab Agr Eng, Beijing 100083, Peoples R China
[2] SINOPEC, Res Inst Petr Proc, Beijing 10083, Peoples R China
[3] Univ Illinois UrbanaChampaign, Dept Agr & Biol Engn, Urbana, IL 61801 USA
[4] Chongqing Univ, Key Lab Low Grade Energy Utilizat Technol & Syst, Minist Educ, Chongqing 400044, Peoples R China
[5] Univ Illinois, Illinois Sustainable Technol Ctr, 1 Hazelwood Dr, Champaign, IL 61820 USA
来源：
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS | 2018年 / 35卷
基金：
美国国家科学基金会;
关键词：
Hydrothermal treatment; Algae; Lipid extraction; Cell wall disruption; Algal biofuel; BIODIESEL PRODUCTION; ACID TREATMENT; POLAR LIPIDS; MICROALGAE; LIQUEFACTION; PRETREATMENT; ALGAE; OIL; DECOMPOSITION; BIOFUELS;
D O I：
10.1016/j.algal.2018.09.015
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
Cell wall disruption is a critical challenge for algal biofuel. Here, we reported Hydrothermal treatment (HTT) of high solid content (20% w/w) Nannochloropsis sp. and its influence on extraction of lipid. Various process variables were specifically studied including reaction temperature (120-200 degrees C) and retention time (0-60 min). SEM and TEM images revealed the cell morphology before and after HTT. A high extraction yield (84%) of lipid was obtained at 180 degrees C with a retention time of 60 min, without the use of any catalysts. GC-MS revealed that the main compounds in the extracts were fatty acids, hydrocarbons and esters. UPLC MS/MS uncovered the detailed varieties of glyceride, phospholipid and glycolipid, and demonstrated that (16:0/16:0/16:1) triglyceride (TAG) was the most abundant TAG. HTT might be a promising method to break microalgae cell wall for lipid extraction.
引用
收藏
页码：407 / 415
页数：9
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