Effect of blanching on the diffusion of glucose from potatoes
作者:
Zakia M. Abdel‐Kader,
期刊:
Food / Nahrung
(WILEY Available online 1992)
卷期:
Volume 36,
issue 1
页码: 15-20
ISSN:0027-769X
年代: 1992
DOI:10.1002/food.19920360104
出版商: WILEY‐VCH Verlag GmbH
数据来源: WILEY
摘要:
AbstractGlucose losses from potato slabs into the water during blanching at 60, 70, 80 and 90 °C were studied after 10, 20, 30, 40, 50 and 60 min. In general, an increase of temperature during the considered times produced a higher glucose loss. The apparent diffusion coefficients (D) for glucose losses from potatoes were calculated under the blanching conditions. The D‐values were found to be in the range of 3 × 10−10to 8 × 10−10m2· s−1and could be related to temperature by an Arrhenius equation, having an activation energy of 29.1 kJ/mol. The results will allow the prediction of mean glucose concentration in potato tissues, and hence the overall losses incurred, after a given blanch treatment in this time and temper
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