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Effect of a commercial pectinmethylesterase on tomato paste consistency
Zúñiga-Hansen, María Elvira; Pérez-Torres, Eduardo; Caballero-Valdés, Eduardo; Fernández-Parodi, José.
Afiliação
  • Zúñiga-Hansen, María Elvira; Centro Regional de Estudios en Alimentos Saludables. CONICYT-Regional GORE R06I1004. Valparaíso. CL
  • Pérez-Torres, Eduardo; Centro Regional de Estudios en Alimentos Saludables. CONICYT-Regional GORE R06I1004. Valparaíso. CL
  • Caballero-Valdés, Eduardo; Centro Regional de Estudios en Alimentos Saludables. CONICYT-Regional GORE R06I1004. Valparaíso. CL
  • Fernández-Parodi, José; Pontificia Universidad Católica de Valparaíso. Facultad de Ingeniería. Escuela de Ingeniería Bioquímica. Valparaíso. CL
Electron. j. biotechnol ; 15(3): 9-9, May 2012. ilus, tab
Article em En | LILACS | ID: lil-640553
Biblioteca responsável: CL1.1
ABSTRACT

Background:

Consistency is one of the main traits that define commercial quality and price of tomato paste. Pectins are partially responsible for consistency in tomato paste, therefore enzymatic pectin modification could be used to increase paste consistency.

Results:

This work reports the effects of a commercial enzymatic preparation of pectin-methyl-esterase (PME) (NovoShape™) on tomato paste consistency taking into account variables as enzyme/substrate ratio (0,1 percent w/w - 1 percent w/w), reaction time (0 hr - 3 hrs) and reaction temperature (40ºC-60ºC). The results indicate that NovoShape™ increased consistency when reaction temperature ranged from 40 to 50ºC with an enzyme/substrate ratio of 0.5 to 1 (l PME solution/g tomato paste on dry base). On the other hand, enzymatic treatment was not effective at 60ºC with an enzyme/substrate ratio of 0.1 percent.

Conclusions:

Based on these results, addition of NovoShape™ is a good technological approach to increase tomato paste consistency.
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Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Assunto principal: Hidrolases de Éster Carboxílico / Solanum lycopersicum Idioma: En Revista: Electron. j. biotechnol Assunto da revista: BIOTECNOLOGIA Ano de publicação: 2012 Tipo de documento: Article / Project document País de afiliação: Chile País de publicação: Chile

Texto completo: 1 Coleções: 01-internacional Base de dados: LILACS Assunto principal: Hidrolases de Éster Carboxílico / Solanum lycopersicum Idioma: En Revista: Electron. j. biotechnol Assunto da revista: BIOTECNOLOGIA Ano de publicação: 2012 Tipo de documento: Article / Project document País de afiliação: Chile País de publicação: Chile