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dc.contributor.authorBian, Xiaoyu
dc.contributor.authorJin, Wenbiao
dc.contributor.authorGu, Qiong
dc.contributor.authorZhou, Xu
dc.contributor.authorXi, Yuhe
dc.contributor.authorTu, Renjie
dc.contributor.authorHan, Song-Fang
dc.contributor.authorXie, Guo-Jun
dc.contributor.authorGao, Shu-Hong
dc.contributor.authorWang, Qilin
dc.date.accessioned2019-06-26T12:30:30Z
dc.date.available2019-06-26T12:30:30Z
dc.date.issued2018
dc.identifier.issn0959-3993
dc.identifier.doi10.1007/s11274-018-2421-z
dc.identifier.urihttp://hdl.handle.net/10072/373353
dc.description.abstractSubcritical co-solvents of n-hexane/isopropanol were primarily utilized to extract lipid from wet microalgal pastes of Scenedesmus obliquus. The effects of key operational parameters were investigated, and the optimal parameters were obtained: solvent ratio of n-hexane to isopropanol was 3:2 (V:V), phase ratio of co-solvents to microalgal biomass was 35:1 (mL:g), reactor stirring speed was 900 rpm, extraction time was 60 min. Additional pretreatment with acid, ultrasonic and microwave as well as enhanced subcritical pressure/heating treatments were also applied to further study their effects on lipid extraction. The results showed that the lipid recovery rate with acid pretreatment was 8.6 and 6.2% higher than ultrasonic and microwave pretreatment; the optimum enhanced subcritical condition was 55 °C with atmospheric pressure. Under optimal operating conditions, the lipid and FAME yield were 13.5 and 7.2%, which was 82.6 and 135.1% higher than the traditional method. The results indicated that the subcritical n-hexane/isopropanol extraction process had promising application potential.
dc.description.peerreviewedYes
dc.languageEnglish
dc.publisherSpringer Link
dc.publisher.placeNetherlands
dc.relation.ispartofchapter39
dc.relation.ispartofpagefrom1
dc.relation.ispartofpageto10
dc.relation.ispartofjournalWorld Journal of Microbiology and Biotechnology
dc.relation.ispartofvolume34
dc.subject.fieldofresearchEnvironmental Technologies
dc.subject.fieldofresearchBiological Sciences
dc.subject.fieldofresearchTechnology
dc.subject.fieldofresearchcode090703
dc.subject.fieldofresearchcode06
dc.subject.fieldofresearchcode10
dc.titleSubcritical n-hexane/isopropanol extraction of lipid from wet microalgal pastes of Scenedesmus obliquus
dc.typeJournal article
dc.type.descriptionC1 - Articles
dc.type.codeC - Journal Articles
gro.hasfulltextNo Full Text
gro.griffith.authorWang, Qilin


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