Avaliação e adequação da lavagem no beneficiamento da batata / Assessment and adequacy of washing in the potato processing

AUTOR(ES)
FONTE

IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia

DATA DE PUBLICAÇÃO

30/08/2011

RESUMO

The washing for potatoes in São Paulo, for the fresh market or industry, consumes excessive amounts of water, causing damage to the environment mainly due to waste water discharge from the washing step. Considering the requirement of the consumer market for washed potatoes, and the need to reduce water consumption, the hypothesis is that it is possible to reduce water consumption on the washing of potato just modifying the configuration of the equipment currently used (flow and rotation), and maintaining the cleaning efficiency without affecting quality. Therefore, the main goal was to evaluate the cleaning step in processing lines of washed potatoes produced in the state of Sao Paulo, and propose modifications to reduce the amount of water and with maintenance of product quality and cleaning efficiency. Therefore, early, characterization of the cleaning step was made in processing and classification units of washed potatoes in the state of Sao Paulo, identifying the method of washing used, types of rollers / brushes, average speed of the product, and water volume consumed on this step. From the characterization study, changes were proposed in the cleaning step that would improve the efficiency with respect to water consumption and cleaning product. The cleaning efficiency, water consumption, and influence of improvement in the quality of washed potatoes were evaluated and compared in the proposed systems. The quality of the processed product was evaluated by the following parameters: weight loss, color, physical damage and firmness. In this study, it was possible to verify that water consumption on processing units can be reduced maintaining cleaning efficiency, only adjusting water flow and rotation of the equipment. Related to tuber quality, it was also observed an increase of mass and firmness loss, and sprouting of washed potatoes compared with unwashed tubers.

ASSUNTO(S)

batata pós-colheita cultivos agricolas - tecnologia pos-colheita batata - processamento potato crops potatoes post-harvest

ACESSO AO ARTIGO

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