Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.14/6443
Título: Determination of the physical functionality of galactomannans in kappa-carrageenan/galactomannan mixed systems by periodate oxidation
Autor: Fernandes, Paulo B.
Data: 1994
Editora: Elsevier
Citação: FERNANDES, Paulo B. - Determination of the physical functionality of galactomannans in kappa-carrageenan/galactomannan mixed systems by periodate oxidation. Food Chemistry. ISSN 0308-8146. Vol. 49, n.º 4 (1994), p. 367-371
Resumo: Galactomannan samples of different origins (guar gum, tara gum, and locust-bean gums), with mannose-to-galactose (M/G) ratios from 1·7 to 4·8, have been characterized. They exhibited strong differences with respect to their molecular weight and their fine structure (M/G). The different locust-bean-gum samples differed significantly in this respect from each other. All galactomannans were submitted to periodate oxidation. The periodate oxidation of galactomannan samples was characterized by the formic acid liberated. As expected, the formic acid liberated was directly related to the (M/G)ratios of galactomannan samples. Thus galactomannan periodate oxidation was shown to be a simple and precise analytical method to predict the (M/G)ratio of galactomannan samples. It was demonstrated that galactomannan periodate oxidation, as a measure of the Image ratio, can be directly related to the physical functionality of galactomannans in terms of synergistic interactions between the kappa-carrageenan and the galactomannans.
Peer review: yes
URI: http://hdl.handle.net/10400.14/6443
Versão do Editor: http://www.sciencedirect.com/science/article/pii/030881469490006X
Aparece nas colecções:ESB - Artigos em revistas internacionais com Arbitragem / Papers in international journals with Peer-review

Ficheiros deste registo:
Ficheiro Descrição TamanhoFormato 
Determination of the physical.....pdf1,28 MBAdobe PDFVer/Abrir


FacebookTwitterDeliciousLinkedInDiggGoogle BookmarksMySpace
Formato BibTex MendeleyEndnote Degois 

Todos os registos no repositório estão protegidos por leis de copyright, com todos os direitos reservados.