Optimization of spray drying process of dateplum persimmon powder by response surface methodology
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(College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, Henan 471023, China)

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    Abstract:

    In order to improve the drying effect of Dateplum persimmon powder through enzymatic hydrolysis followed by spray drying. The results showed that the total soluble solids contents of dateplum persimmon hydrolysate was 65.89%, when the hydrolysis was performed using 0.2% multi-enzyme(pectinase and cellulase) for 90 min at 45 ℃ and initial pH 4.5; after preconcentration to 16%, the hydrolysate was spray dried at an air-inlet temperature of 176 ℃, under adding the amount of gum Arabic of 53% and feed rate of 818 mL/h, resulting in a powder yield of 26.89% with water content smaller than 5%, and high suitability for long-term storage. Such combination of enzymatic hydrolysis and spray drying could be effectively used for the processing of dateplum persimmon powder.

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乔小全,任广跃,段续,等.黑枣粉喷雾干燥工艺优化[J].食品与机械英文版,2017,33(6):207-212.

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  • Online: March 10,2023
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