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Type: Artigo de evento
Title: Applying Freeze Drying Of Fig "roxo De Valinhos" Variety
Author: Pacco H.C.
Menegalli F.C.
Cappelli N.L.
Umezu C.K.
Abstract: Brazil is the second great producer of figs in the world, preceded only by Turkey. Nevertheless, since the entire production is commercialized fresh and figs are highly perishable, a great parcel is lost due to inadequate handling, storage, and transportation. Thus, the objective of this research was to verify the effect of applying freezing drying process on quality and conservation of figs. The experiments were carried out at the laboratories of the College of Food Engineering and College of Agricultural Engineering at the State University of Campinas, Brazil. The figs (Ficus carica L.) of "Roxo de Valinhos" variety were harvested in Valinhos, São Paulo state, and immediately transported to the laboratory in cartoon packages. The fruits were first selected according to size, color, and maturity stage - half and fully ripened figs and then washed and drained. The initial physical and chemical properties of the samples were evaluated and resulted in 85% of humidity, Brix to acidity ratio of 3.0, and 0.98 of water activity. The samples were sliced in 47.5 diameter and 10mm thickness pieces and placed in aluminum trays. Next they were frozen at -18°C and dried until reaching 14% of humidity and 0.25 of water activity. The lyophilized fruits were evaluated again according to color, flavor, aroma and texture and stored in glass jars. In general the best quality results were obtained when using half ripened figs which did not present any shrinkage. The significant reduction in water activity and mass could allow conserving the fruit longer and reduce shipping costs.
Rights: fechado
Identifier DOI: 
Date Issue: 2011
Appears in Collections:Unicamp - Artigos e Outros Documentos

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