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Air blast freezing of fruit pulp models in commercial boxes: influence of preferential channels in the bed on freezing times estimating 116
Resende,Jaime Vilela de; Silveira Jr.,Vivaldo; Neves Filho,Lincoln de C..
The freezing times of fruit pulp models packed and conditioned in multi-layered boxes were evaluated under conditions similar to those employed commercially. Estimating the freezing time is a difficult practice due to the presence of significant voids in the boxes, whose influence may be analyzed by means of various methods. In this study, a procedure for estimating freezing time by using the models described in the literature was compared with experimental measurements by collecting time/temperature data. The following results show that the airflow through packages is a significant parameter for freezing time estimation. When the presence of preferential channels was considered, the predicted freezing time in the models could be 10% lower than the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Freezing times; Frozen foods; Heat transfer.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612002000300021
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