Author(s):
Martins, R. C. 
; Silva, C. L. M.
Date: 2000
Persistent ID: http://hdl.handle.net/10400.14/6968
Origin: Veritati - Repositório Institucional da Universidade Católica Portuguesa
Document details
Colour and chlorophyll's degradation kinetics of frozen green beans (Phaseolus ...
Description
Colour changes and chlorophyll's degradation of frozen green beans (Phaseolus vulgaris, L., variety bencanta) were studied during 250 days of storage at -7, -15 and -30°C. Chlorophyll's a and b losses were modelled by a first order reaction kinetics. Colour Hunter a and b coordinates and total colour difference were successfully described by a first order reversible model. The temperature effect was well mathematically described by the Arrhenius law, for both quality parameters.
Colour changes and chlorophyll's degradation of frozen green beans (Phaseolus vulgaris, L., variety bencanta) were studied during 250 days of storage at -7, -15 and -30°C. Chlorophyll's a and b losses were modelled by a first order reaction kinetics. Colour Hunter a and b coordinates and total colour difference were successfully described by a first order reversible model. The temperature effect was well mathematically described by the Arrhenius law, for both quality parameters.
Document Type
Article
Language English
Language English
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