Utilization of yam mucilage (Dioscorea spp) as a improver in the production of sandwich loaf. / UtilizaÃÃo da mucilagem do inhame (Dioscorea spp) como melhorador na fabricaÃÃo do pÃo de forma

AUTOR(ES)
DATA DE PUBLICAÇÃO

2006

RESUMO

The employment of improvers in the bread making has been increasing each day, but there is a need for studies on the viability of utilization of natural improvers. The present work was intended to evaluate the employment of yam tuber mucilage as a native improver in the production of sandwich bread. Yam tubers were ground and the mucilage was separated by a filtration in organza fabric. As improvers , the in natura ground yam (IN) tuber, in natura yam tuber mucilage (MI) and the lyophilized in natura yam tuber mucilage (ML) at four different concentrations (0.0%, 1.0%, 2.0% and 2.5%) added into the sandwich loaf dough were utilized. A commercial improver (MC) at 1,0% was utilized as a referential. The centesimal composition, titrable acidity, vitamin C, pH, total sugars, reducing sugars and non-reducing sugars of the in natura yam , of the in natura yam mucilage and of the commercial improver, daily physical and visual evaluation of contamination, of color, of the quality, sensorial analysis and microbiological analysis of the sandwich loaf were determined. The caloria value and centesimal composition, except for crude fiber of the sandwich loaves added, of natural and commercial improver presented no difference. As to the sandwich loaves, these also had their centesimal composition and caloric value according to the kind of improver and the concentration used in the formulation. In the evaluation accomplished as to the conservation of the products, a positive effect of all the treatments in relation to the controls was found, with results observed ranging from 12 to 14 days for the sandwich loaves with ML 1.0%, 2.0% and 2.5%. The in natura yam was the improver which contributed the most to the development of color of the sandwich loaves. As for flavor, aroma and texture, the sandwich loaves added with both ML and MC reached good results.

ASSUNTO(S)

sandwich loaf; yam (dioscorea spp); lyophilization (freeze-drying); additives; natural improver and bread- making pÃo de forma; inhame (dioscorea spp); liofilizaÃÃo; aditivos; melhorador natural e panificaÃÃo. ciencia de alimentos

ACESSO AO ARTIGO

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