Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.19/2911
Título: Evaluation of the physical, chemical and sensory properties
Autor: Guiné, Raquel
Almeida, Inês
Correia, Ana
Gonçalves, Fernando
Palavras-chave: drying
phenolic compounds
texture
grapes
raisins
colour
Data: 2015
Citação: Guiné RPF, Almeida IC, Correia AC, Gonçalves FJ. (2015) Evaluation of the physical, chemical and sensory properties of raisins produced from grapes of the cultivar Crimson. Journal of Food Measurement and Characterization, 9(3), 337-346
Resumo: The main objective of the present work was to dry grapes of Crimson variety through different method- ologies in order to find an alternative for the production of raisins. Different methodologies were used for drying: so- lar direct exposition in a greenhouse and in convective drying chambers with constant air flow at two tem- peratures: 50 and 60 C. Some chemical analyses were made, namely for total sugars, acidity, total phenols, total anthocyanins and total tannins. Also some physical prop- erties were evaluated, specifically color and texture. A sensorial analysis of the dried products was undertaken to evaluate the acceptability by consumers. The raisins pro- duced by the different methodologies didn’t show sig- nificant differences at the chemical and physical levels. However, it was observed that the dried samples contained higher amounts of total phenolic compounds, anthocyanins and tannins in comparison to the fresh grapes. Sensory evaluation result showed that dried grapes produced using different methodologies was similar to commercial raisins.
Peer review: yes
URI: http://hdl.handle.net/10400.19/2911
Aparece nas colecções:ESAV - DIA - Artigos publicados em revista científica

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