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Base-free preparation of low molecular weight chitin from crab shell
Zhang, Jie1,4; Feng, Mi1,2; Lu, Xingmei1,2; Shi, Chunyan1; Li, Xiaoqian1,2; Xin, Jiayu1; Yue, Guikuan3; Zhang, Suojiang1,2

Low molecular weight (LMW) chitin exhibits antimicrobial activity, and its preparation generally employs high molecular weight chitin as raw material. Here we use raw crab shell as material to isolate LMW-chitin. The raw crab shell was treated with hydrochloric acid under different conditions, and the demineralization and deproteinization of acid to the raw and demineralized crab shell were examined. Under conditions of 3-5 wt% acid, 110 degrees C, and 180-600 min, the obtained LMW-chitin owns 92% purity and 53-80 kDa molecular weight. The method provides feasible one-step base-free strategy to directly obtain LMW-chitin from raw crab shell, and could be potentially extended to other chitin sources.

KeywordChitin Deacetylation Low Molecular Weight Demineralization Deproteinization Acid Hydrolysis
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS KeywordShrimp Shells ; Chitosan ; Extraction ; Fibers ; Plasma ; Pens
WOS Research AreaChemistry ; Polymer Science
WOS SubjectChemistry, Applied ; Chemistry, Organic ; Polymer Science
Funding OrganizationNational Natural Scientific Fund of China(21476234 ; 21506231 ; 21336002 ; 21210006)
WOS IDWOS:000429425500017
Citation statistics
Document Type期刊论文
Affiliation1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Key Lab Green Proc Engn, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Yuquan Rd, Beijing 100049, Peoples R China
3.Univ Texas El Paso, Dept Met Mat & Biomed Engn, 500 W Univ Ave, El Paso, TX 79968 USA
4.Beijing BW Techtext Co Ltd, Changan Ctr, Floor 11,Bldg 2,Block 26,Financial St, Beijing 100043, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Jie,Feng, Mi,Lu, Xingmei,et al. Base-free preparation of low molecular weight chitin from crab shell[J]. CARBOHYDRATE POLYMERS,2018,190:148-155.
APA Zhang, Jie.,Feng, Mi.,Lu, Xingmei.,Shi, Chunyan.,Li, Xiaoqian.,...&Zhang, Suojiang.(2018).Base-free preparation of low molecular weight chitin from crab shell.CARBOHYDRATE POLYMERS,190,148-155.
MLA Zhang, Jie,et al."Base-free preparation of low molecular weight chitin from crab shell".CARBOHYDRATE POLYMERS 190(2018):148-155.
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