Data/hora: 22/06/2024 22:19:39

Biblioteca(s): | Embrapa Instrumentação.
Data corrente: | 23/02/2005
Data da última atualização: | 03/03/2010
Autoria: | LAVALL, R. L.; ASSIS, O. B. G.; CAMPANA-FILHO, S. P.
Título: | B-chitin from squid pens: extraction and characterization.
Ano de publicação: | 2004
Fonte/Imprenta: | In: SIMPÓSIO IBEROAMERICANO DE QUTINA, 3. Córdoba, 2004. p. 78.
Idioma: | Português
Conteúdo: | Chitin is a linear polymer formed predominantly by 2- acetamide-2-desoxi-D-glucopyrano units linked by O-glycosidic B(1-4) bonds [1]. It has an ordered structure and three crystalline forms (a, B and y). a- Chitin, the most common crystaltine structure, is a tightly compacted orthorhombic cell formed by altemating parallel and anti-.paraleI chains. B-Chitin has a monoclinic unity cell were the polysaccharide chains are parallel [1]. The a-chitin is the most abundant forro and it is commercially produced from crustacean shells, a raw material available in huge amounts from the fishery industries. Recently B chitin, the polymorph present in squid pens, has attraded a groing interest [2,3]. Indeed, the squid pen is also a cheap raw material and its chilin content is much higher than that of crustacean's shells.
Palavras-Chave: | Espectroscopia; Polímeros; Quitina.
Categoria do assunto: | --
Registro original: | Embrapa Instrumentação (CNPDIA)
Exemplares: | CNPDIA - (8662-1) - UMT - SP - -- - PROCI-04.00136 -  - 2004.00136 - DIS