Selection of drying technology based on dynamic effects on physicochemical properties and flavours of mulberry

Baolin Han, Shulin Tian, Rong Fan, Rangfang Chen, Yu Wang, Hucheng Gong and Minghong Bian
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Baolin Han: College of Bioengineering, Sichuan University of Science & Engineering, Yibin, China
Shulin Tian: College of Bioengineering, Sichuan University of Science & Engineering, Yibin, China
Rong Fan: College of Bioengineering, Sichuan University of Science & Engineering, Yibin, China
Rangfang Chen: College of Bioengineering, Sichuan University of Science & Engineering, Yibin, China
Yu Wang: College of Bioengineering, Sichuan University of Science & Engineering, Yibin, China
Hucheng Gong: College of Bioengineering, Sichuan University of Science & Engineering, Yibin, China
Minghong Bian: College of Bioengineering, Sichuan University of Science & Engineering, Yibin, China

Czech Journal of Food Sciences, 2023, vol. 41, issue 4, 295-303

Abstract: Mulberry is gaining attention for its potential health benefits. However, post-harvest deterioration of quality necessitates drying to prolong storage. This study aimed to investigate the effects of natural drying (ND), hot air drying (HAD), and vacuum freeze drying (VFD) on bioactive compounds and volatile organic compounds of fresh mulberries. The results showed that VFD had the highest retention of total phenols (5 553.87 ± 744.97 µg GAE.g-1), total flavonoids (3 575.51 ± 465.98 µg rutin.g-1), and total anthocyanins (64.98 ± 13.15 µg C3C.g-1) after prolonged drying. Additionally, flavour was identified as the most important indicator influencing consumer preference for dried mulberries, and VFD was found to be effective in retaining the natural flavours of mulberries. Although thermal treatment leads to a significant loss of organic compounds, HAD showed good retention of active substances and lower energy consumption in a shorter processing time.

Keywords: drying methods; fruit; gas chromatography-mass spectrometry (GC-MS); volatile compounds (search for similar items in EconPapers)
Date: 2023
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Persistent link: https://EconPapers.repec.org/RePEc:caa:jnlcjf:v:41:y:2023:i:4:id:82-2023-cjfs

DOI: 10.17221/82/2023-CJFS

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