Crabs Marine Waste-A Valuable Source of Chitosan: Tuning Chitosan Properties by Chitin Extraction Optimization

被引：17

作者：

Gijiu, Cristiana Luminita ^{[1
]}

Isopescu, Raluca ^{[1
]}

Dinculescu, Daniel ^{[1
]}

Memecica, Maria ^{[1
]}

Apetroaei, Manuela-Rossemary ^{[2
]}

Anton, Mirela ^{[1
]}

Schroder, Verginica ^{[3
]}

Rau, Ileana ^{[1
]}

机构：

[1] Univ Politehn Bucuresti, Fac Chem Engn & Biotechnol, Bucharest 011061, Romania

[2] Mircea cel Batran Naval Acad, Fac Nav & Naval Management, Constanta 900218, Romania

[3] Ovidius Univ Constanta, Fac Pharm, Constanta 900470, Romania

来源：

POLYMERS | 2022年 / 14卷 / 21期

关键词：

chitin; chitosan; Taguchi method; chitin extraction optimization; ANTIMICROBIAL PROPERTIES; SHRIMP WASTE; CRUSTACEAN;

D O I：

10.3390/polym14214492

中图分类号：

O63 [高分子化学（高聚物）];

学科分类号：

070305 ; 080501 ; 081704 ;

摘要：

Chitin extraction from crab shells was studied experimentally and optimized aiming to obtain chitosan with predefined deacetylation degree and molecular mass. To find out the optimum operating conditions that ensure the obtaining of a chitosan with highest deacetylation degree and specific molecular mass four parameters were varied: the concentration of NaOH and the temperature for deproteinization step, respectively HCl concentration and the number of acidic treatments for the demineralization stage. The experiment was carried on following Taguchi orthogonal array L9, and the best combination of factors was found using the desirability function approach. The optimization results showed that 5% NaOH concentration and low temperatures lead to a chitosan with high deacetylation degree. High molecular mass chitosan is obtained when a single step acidic treatment is used, while a chitosan with low molar mass is obtained for multiple acid contacts and higher HCl concentration.

引用

页数：13

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