Acta Agriculturae Zhejiangensis ›› 2024, Vol. 36 ›› Issue (4): 894-904.DOI: 10.3969/j.issn.1004-1524.20230357

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Optimization of drying method and quality for instant porridge

SHAO Xue1,2(), NIU Ben2, FANG Xiangjun2, WU Weijie2, WU Laichun3, GAO Haiyan2, CHEN Hangjun2,*()   

  1. 1. College of Food Science and Engineering, Jilin Agricultural University, Changchun 130118, China
    2. Key Laboratory of Post-Harvest Handling of Fruits, Ministry of Agriculture and Rural Affairs, Key Laboratory of Postharvest Preservation and Processing of Vegetables (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Key Laboratory of Fruits and Vegetables Postharvest and Processing Technology Research of Zhejiang Province, Key Laboratory of Postharvest Preservation and Processing of Fruits and Vegetables, China National Light Industry, Institute of Food Science, Zhejiang Academy of Agricultural Sciences, Hangzhou 310021, China
    3. Wenzhou Mamijia Catering Management Co., Ltd., Wenzhou 325000, Zhejiang, China
  • Received:2023-03-18 Online:2024-04-25 Published:2024-04-29
  • Contact: CHEN Hangjun

Abstract:

In order to explore the effect of various drying methods on the quality of instant porridge, the effects of three methods, namely, hot air drying, vacuum drying and vacuum freeze drying on the water loss rate, rehydration rate and shrinkage rate of the dried porridges were explored. The red dates, lotus root powder and xylitol were compounded into the instant porridge, and their addition amounts were optimized via both single-factor tests and response surface test based on the sensory evaluation. The volatile flavour substances in the rehydrated instant porridge were analysed. The results showed that the quality of the dried porridge by vacuum freeze drying was superior than that dried by hot air drying or vacuum drying.The optimal addition amount of red dates, lotus root powder and xylitol were 14.8%, 12.9% and 5.9%, respectively, and its sensory score was 92.09. A total of 69 volatile flavour substances were detected in the rehydrated instant porridge, and the aroma was mainly fatty and fruity.

Key words: instant porridge, technology optimization, sensory scoring, rehydration rate, flavor

CLC Number: