期刊
NFS JOURNAL
卷 27, 期 -, 页码 13-20出版社
ELSEVIER
DOI: 10.1016/j.nfs.2022.02.002
关键词
Date fruit; Phoenix dactylifera; Dehydration; Powder; Solubility
资金
- United Arab Emirates University (UPAR) [31F125]
This study aimed to produce natural additive-free date fruit powder and determined the optimal drying temperature of 70 degrees Celsius for two date fruit varieties. Barakawi date powder outperformed Sukkari date powder in terms of water activity and clumping due to its lower initial moisture content. To overcome the clumping issue, the powders were compressed into tablets and cubes. The study also compared fine and coarse fractions of date fruit powders for various physical parameters.
The study aimed to produce natural additive-free powder from date fruits (Phoenix dactylifera L.). Dehydration of two date fruit varieties, i.e., Sukkari (semi-dry) and Barakawi (dry) was perforned at 65, 70 and 75 degrees C up to 72 h using a cabinet dryer. A temperature of 70 degrees C was found optimum for drying of both varieties by considering drying rate, total phenolic content, and hydroxymethylfurfural content. Barakawi date powder was found better than the Sukkari counterpart on comparing the water activity and clumping, mainly due to a low initial moisture content of the corresponding date fruit. To overcome the issue of clumping, the powders were compressed into tablets and cubes. The solubilities of the tablets/cubes were around 20% compared to 70-75% for powders. The article also presents a comprehensive comparison of fine and coarse fractions of date fruit powders for various physical parameters.
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