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Lipid extraction from Nannochloropsis oceanica biomass after extrusion pretreatment with twin-screw extruder: optimization of processing parameters and comparison of lipid quality
Li, Qijun1,2; Zhou, Zhenzhen1,2; Zhang, Dongmei1; Wang, Zhihui1; Cong, Wei1
2020-04-01
Source PublicationBIOPROCESS AND BIOSYSTEMS ENGINEERING
ISSN1615-7591
Volume43Issue:4Pages:655-662
AbstractThe objective of this work was to evaluate the effects of extrusion pretreatment on the efficiency of lipid extraction and the quality of lipid extracted from the microalga Nannochloropsis oceanica. Five processing parameters of extrusion pretreatment using a twin-screw extruder were studied: die configuration, distance from the internal surface of the die to the end of the screw (delta), temperature, screw rotation speed, and the water content of biomass. The results showed that die configuration, delta, and the water content of the biomass were vital factors affecting lipid extraction efficiency. After the pretreatment of extrusion, the extraction time was shortened from 10 h to 20 min, and the amount of solvent used was reduced to one-third of that without pretreatment. The content of polyunsaturated fatty acid (PUFA) in crude lipid increased by over 30 percent of those components without pretreatment, especially for eicosapentaenoic acid (EPA), which increased by 37.45%. In addition, the unsaponifiable content and acid value of the crude lipid extracted from the extruded microalga decreased significantly, which would facilitate further refining processes.
KeywordExtrusion Lipid extraction Lipid quality Microalga
DOI10.1007/s00449-019-02263-x
Language英语
WOS KeywordMICROALGAL CELL DISRUPTION ; CAMELLIA-OLEIFERA SEED ; PHYSICOCHEMICAL PROPERTIES ; OIL ; N-3
WOS Research AreaBiotechnology & Applied Microbiology ; Engineering
WOS SubjectBiotechnology & Applied Microbiology ; Engineering, Chemical
WOS IDWOS:000519660800008
PublisherSPRINGER
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Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/39770
Collection中国科学院过程工程研究所
Corresponding AuthorZhang, Dongmei
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Li, Qijun,Zhou, Zhenzhen,Zhang, Dongmei,et al. Lipid extraction from Nannochloropsis oceanica biomass after extrusion pretreatment with twin-screw extruder: optimization of processing parameters and comparison of lipid quality[J]. BIOPROCESS AND BIOSYSTEMS ENGINEERING,2020,43(4):655-662.
APA Li, Qijun,Zhou, Zhenzhen,Zhang, Dongmei,Wang, Zhihui,&Cong, Wei.(2020).Lipid extraction from Nannochloropsis oceanica biomass after extrusion pretreatment with twin-screw extruder: optimization of processing parameters and comparison of lipid quality.BIOPROCESS AND BIOSYSTEMS ENGINEERING,43(4),655-662.
MLA Li, Qijun,et al."Lipid extraction from Nannochloropsis oceanica biomass after extrusion pretreatment with twin-screw extruder: optimization of processing parameters and comparison of lipid quality".BIOPROCESS AND BIOSYSTEMS ENGINEERING 43.4(2020):655-662.
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