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Deacidification of Microalgal Oil with Alkaline Microcrystalline Cellulose
Li, Qijun1,2; Zhou, Zhenzhen1,2; Zhang, Dongmei1; Cong, Wei1
2020-11-18
Source PublicationAPPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
ISSN0273-2289
Pages13
AbstractMicroalgal oil is considered a promising candidate for edible oils. However, investigation of the refining processes of microalgal oil has been limited, especially deacidification. In this work, microcrystalline cellulose (MCC) was pretreated using different methods and utilized for the first time in the deacidification of microalgal oil. Detection results from FTIR and XRD indicated alkali pretreatment had a significant effect on the structure of MCC. Some inter- and intramolecular hydrogen bonds in AMCC (alkali-pretreated MCC) were destroyed, and crystallinity index of cellulose decreased, which increased its adsorption capacity and the reaction of OH groups with free fatty acids. Some NaOH was adsorbed into AMCC through cellulose swelling, which also contributed to deacidification. The interaction with oil was also improved with many cracks and voids on the surface of AMCC. AMCC could reduce the acid value to about 2 mg KOH/g. Comparatively, original MCC and MCC pretreated with microwave or ultrasound did not exhibit the ability to deacidify. Furthermore, the conditions of alkali treatment were optimized. Treatment with 20% NaOH for 20 min was optimal. Compared with other adsorbents, such as sodium silicate and chitosan treated with alkali and resin, only AMCC could effectively reduce acid value while maintaining high lipid recovery. Therefore, AMCC was considered a better adsorbent for the deacidification of microalgal oil.
KeywordMicroalgal oil Deacidification Adsorption Microcrystalline cellulose Alkali treatment
DOI10.1007/s12010-020-03457-w
Language英语
WOS KeywordRAMAN-SPECTROSCOPY ; EDIBLE OILS ; EXTRACTION ; PUFA ; KINETICS ; N-3
Funding ProjectNational Key R&D Program of China[2018YFD0401105]
WOS Research AreaBiochemistry & Molecular Biology ; Biotechnology & Applied Microbiology
WOS SubjectBiochemistry & Molecular Biology ; Biotechnology & Applied Microbiology
Funding OrganizationNational Key R&D Program of China
WOS IDWOS:000590254200001
PublisherSPRINGER
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/42675
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 100190, Peoples R China
Recommended Citation
GB/T 7714
Li, Qijun,Zhou, Zhenzhen,Zhang, Dongmei,et al. Deacidification of Microalgal Oil with Alkaline Microcrystalline Cellulose[J]. APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY,2020:13.
APA Li, Qijun,Zhou, Zhenzhen,Zhang, Dongmei,&Cong, Wei.(2020).Deacidification of Microalgal Oil with Alkaline Microcrystalline Cellulose.APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY,13.
MLA Li, Qijun,et al."Deacidification of Microalgal Oil with Alkaline Microcrystalline Cellulose".APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY (2020):13.
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