VARIATIONS IN ALFALFA JUICE SOLUTE CONCENTRATIONS AS WATER IS EVAPORATED
作者:
C.D. McLeod,
G.C. Misener,
期刊:
Drying Technology
(Taylor Available online 1992)
卷期:
Volume 10,
issue 2
页码: 467-473
ISSN:0737-3937
年代: 1992
DOI:10.1080/07373939208916446
出版商: Taylor & Francis Group
关键词: alfalfa juice;drying;solute concentration;freezing point depression
数据来源: Taylor
摘要:
Alfalfa juice was extracted from plants during the graving phases of the first and second crops. The alfalfa juice was dried and solute concentrations were measured periodically during the process using freezing point depression (FPD) as an indicator. Solute/solvent weight ratios were calculated from the freezing point depression of fresh unconcentrated 'uice extracted from both firsc and second crops. At the time of harvest, tie FPD was a function of this ratio. The first and second crops behaved distinctively different during the drying process, with the second having a larger soluce concentration and a greater FPD at a given moisture content. The appearance of preci itate during the drying process and the general1 large FPD makes this materiay a questionable product for drying vitg low temperature processes.
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