Quimica nova | |
Preparation and characterization of α-chitin and chitosan from the shells of Macrobrachium rosembergii | |
Battisti, Marcos Valério1  Campana-Filho, Sergio P.1  | |
[1] Universidade de São Paulo, São Carlos, Brasil | |
关键词: biomass; chitin; chitosan.; | |
DOI : 10.1590/S0100-40422008000800019 | |
学科分类:化学(综合) | |
来源: Sociedade Brasileira de Quimica | |
【 摘 要 】
The shells of Macrobrachiumrosenbergii were submitted to deproteinization (Dp) and demineralization(Dm) aiming the extraction of α-chitin. The differentparts of the shells were processed independently by carrying out sequence 1(Dp/Dm) and sequence 2 (Dm/Dp). Both sequences allowed the extraction of chitinswith low contents of calcium and magnesium, regardless of the part being processed.The sequence 1 lead to higher extraction yields while sequence 2 resulted inlower contents of inorganic compounds. Extensively deacetylated chitosans (GA<10%)of medium molecular weight (0,9 x 105 < Mv <2 x 105 g/mol) resulted from the deacetylation of chitin.
【 授权许可】
CC BY
【 预 览 】
Files | Size | Format | View |
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RO201902016452315ZK.pdf | 875KB | download |