Literature DB >> 12857070

Alkali-induced conversion of beta-chitin to alpha-chitin.

Yasutomo Noishiki1, Hiroko Takami, Yoshiharu Nishiyama, Masahisa Wada, Shigeru Okada, Shigenori Kuga.   

Abstract

Crystal conversion of beta-chitin to alpha-chitin by aq. NaOH treatment was studied for a highly crystalline beta-chitin sample from diatom spine. The minimum NaOH concentration to cause swelling was between 25% and 30% w/w. The alkali-swollen material was poorly crystalline and was regenerated as alpha-chitin on washing with water. This conversion caused total collapse of the original microfibrillar morphology. These features are similar to those of 7 N-8 N HCl treatment reported earlier, but alkali treatment was free from depolymerization or deacetylation.

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Year:  2003        PMID： 12857070     DOI： 10.1021/bm0257513

Source DB:  PubMed          Journal:  Biomacromolecules        ISSN： 1525-7797            Impact factor:   6.988


  9 in total

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Authors:  E Brunner; H Ehrlich; P Schupp; R Hedrich; S Hunoldt; M Kammer; S Machill; S Paasch; V V Bazhenov; D V Kurek; T Arnold; S Brockmann; M Ruhnow; R Born
Journal:  J Struct Biol       Date:  2009-06-28       Impact factor: 2.867

Review 2.  Nanochitin: Chemistry, Structure, Assembly, and Applications.

Authors:  Long Bai; Liang Liu; Marianelly Esquivel; Blaise L Tardy; Siqi Huan; Xun Niu; Shouxin Liu; Guihua Yang; Yimin Fan; Orlando J Rojas
Journal:  Chem Rev       Date:  2022-06-02       Impact factor: 72.087

Review 3.  Application of spectroscopic methods for structural analysis of chitin and chitosan.

Authors:  Jolanta Kumirska; Małgorzata Czerwicka; Zbigniew Kaczyński; Anna Bychowska; Krzysztof Brzozowski; Jorg Thöming; Piotr Stepnowski
Journal:  Mar Drugs       Date:  2010-04-29       Impact factor: 5.118

4.  Facile Fabrication of Nanofibrillated Chitin/Ag2O Heterostructured Aerogels with High Iodine Capture Efficiency.

Authors:  Runan Gao; Yun Lu; Shaoliang Xiao; Jian Li
Journal:  Sci Rep       Date:  2017-06-27       Impact factor: 4.379

Review 5.  Nanomaterials Derived from Fungal Sources-Is It the New Hype?

Authors:  Wan M F B W Nawawi; Mitchell Jones; Richard J Murphy; Koon-Yang Lee; Eero Kontturi; Alexander Bismarck
Journal:  Biomacromolecules       Date:  2019-10-23       Impact factor: 6.988

6.  Structural basis for directional chitin biosynthesis.

Authors:  Wei Chen; Peng Cao; Yuansheng Liu; Ailing Yu; Dong Wang; Lei Chen; Rajamanikandan Sundarraj; Zhiguang Yuchi; Yong Gong; Hans Merzendorfer; Qing Yang
Journal:  Nature       Date:  2022-09-21       Impact factor: 69.504

Review 7.  Chemistry and applications of polysaccharide solutions in strong electrolytes/dipolar aprotic solvents: an overview.

Authors:  Omar A El Seoud; Haq Nawaz; Elizabeth P G Arêas
Journal:  Molecules       Date:  2013-01-21       Impact factor: 4.411

8.  Synthesis and Evaluation of Herbal Chitosan from Ganoderma Lucidum Spore Powder for Biomedical Applications.

Authors:  Li-Fang Zhu; Zhi-Cheng Yao; Zeeshan Ahmad; Jing-Song Li; Ming-Wei Chang
Journal:  Sci Rep       Date:  2018-10-02       Impact factor: 4.379

9.  Adipose-derived mesenchymal stem cell-loaded β-chitin nanofiber hydrogel promote wound healing in rats.

Authors:  Ying Liu; Yunen Liu; Mi Wu; Rufei Zou; Shun Mao; Peifang Cong; Mingxiao Hou; Hongxu Jin; Yan Zhao; Yongli Bao
Journal:  J Mater Sci Mater Med       Date:  2022-01-20       Impact factor: 3.896
  9 in total

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