Effect of heat-moisture treatment on the structural, physicochemical, and rheological characteristics of arrowroot starch

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dc.contributor.authorPepe, Larissa S. [UNESP]
dc.contributor.authorMoraes, Jaqueline [UNESP]
dc.contributor.authorAlbano, Kivia M. [UNESP]
dc.contributor.authorTelis, Vânia Rn [UNESP]
dc.contributor.authorFranco, Célia Ml [UNESP]
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2015-12-07T15:33:25Z
dc.date.available2015-12-07T15:33:25Z
dc.date.issued2015
dc.description.abstractThe effect of heat-moisture treatment on structural, physicochemical, and rheological characteristics of arrowroot starch was investigated. Heat-moisture treatment was performed with starch samples conditioned to 28% moisture at 100℃ for 2, 4, 8, and 16 h. Structural and physicochemical characterization of native and modified starches, as well as rheological assays with gels of native and 4 h modified starches subjected to acid and sterilization stresses were performed. Arrowroot starch had 23.1% of amylose and a CA-type crystalline pattern that changed over the treatment time to A-type. Modified starches had higher pasting temperature and lower peak viscosity while breakdown viscosity practically disappeared, independently of the treatment time. Gelatinization temperature and crystallinity increased, while enthalpy, swelling power, and solubility decreased with the treatment. Gels from modified starches, independently of the stress conditions, were found to have more stable apparent viscosities and higher G' and G″ than gels from native starch. Heat-moisture treatment caused a reorganization of starch chains that increased molecular interactions. This increase resulted in higher paste stability and strengthened gels that showed higher resistance to shearing and heat, even after acid or sterilization conditions. A treatment time of 4 h was enough to deeply changing the physicochemical properties of starch.en
dc.description.affiliationUNESP - São Paulo State University - Department of Food Engineering and Technology, São Paulo, Brazil.
dc.description.affiliationUNESP - São Paulo State University - Department of Food Engineering and Technology, São Paulo, Brazil celia@ibilce.unesp.br.
dc.description.affiliationUnespUNESP - São Paulo State University - Department of Food Engineering and Technology, São Paulo, Brazil.
dc.description.affiliationUnespUNESP - São Paulo State University - Department of Food Engineering and Technology, São Paulo, Brazil celia@ibilce.unesp.br.
dc.identifierhttp://dx.doi.org/10.1177/1082013215595147
dc.identifier.citationFood Science And Technology International = Ciencia Y Tecnologia De Los Alimentos Internacional, 2015.
dc.identifier.doi10.1177/1082013215595147
dc.identifier.issn1082-0132
dc.identifier.pubmed26163566
dc.identifier.urihttp://hdl.handle.net/11449/131283
dc.language.isoeng
dc.publisherFood Science And Technology International
dc.relation.ispartofFood Science And Technology International = Ciencia Y Tecnologia De Los Alimentos Internacional
dc.relation.ispartofjcr1.081
dc.relation.ispartofsjr0,509
dc.rights.accessRightsAcesso restrito
dc.sourcePubMed
dc.subjectStarchen
dc.subjectPhysical propertiesen
dc.subjectRheologyen
dc.subjectViscosityen
dc.titleEffect of heat-moisture treatment on the structural, physicochemical, and rheological characteristics of arrowroot starchen
dc.typeArtigo
dcterms.rightsHolder© The Author(s) 2015.© The Author(s) 2015.
unesp.author.lattes3990259902528302[5]
unesp.author.orcid0000-0002-2553-4629[4]
unesp.author.orcid0000-0002-4941-1463[5]
unesp.campusUniversidade Estadual Paulista (Unesp), Instituto de Biociências Letras e Ciências Exatas, São José do Rio Pretopt

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Artigos - Engenharia e Tecnologia de Alimentos - IBILCE