Infrared Drying Characteristics and Quality Variations of Lily Bulbs Under Blanching Pretreatment
(2022) In Journal of Thermal Science and Engineering Applications 14(9).- Abstract
Infrared drying characteristics and quality variations (color change, hardness, contents of polyphenol and flavonoid) of lily bulbs under blanching pretreatment are investigated. Influences of parameters such as pretreatment temperature and time and infrared drying temperature are discussed. Effective moisture diffusivity coefficient, activation energy, and energy consumption were calculated. Results showed that drying time was reduced by 62.5%, 56.3%, and 61.5% at 90 °C compared to 60 °C when blanching time was 4, 5, and 6 min, respectively. A blanching time of 5 min and drying temperature of 70 °C were ideal for pretreatment and drying to maintain good color quality. Hardness value of lily bulb decreased as drying temperature and... (More)
Infrared drying characteristics and quality variations (color change, hardness, contents of polyphenol and flavonoid) of lily bulbs under blanching pretreatment are investigated. Influences of parameters such as pretreatment temperature and time and infrared drying temperature are discussed. Effective moisture diffusivity coefficient, activation energy, and energy consumption were calculated. Results showed that drying time was reduced by 62.5%, 56.3%, and 61.5% at 90 °C compared to 60 °C when blanching time was 4, 5, and 6 min, respectively. A blanching time of 5 min and drying temperature of 70 °C were ideal for pretreatment and drying to maintain good color quality. Hardness value of lily bulb decreased as drying temperature and blanching time increased. Seventy to eighty degree celcius was ideal drying condition to maintain good hardness quality. Blanching time and drying temperature differently affected contents of flavonoids and polyphenols of lily bulbs. Basically, when blanching time was relatively long and drying temperature was relatively high, the content of polyphenols was high.
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- author
- Huang, Dan LU ; Yang, Pei ; Qin, Yiting ; Gong, Guiliang ; Tang, Xiaohong ; Luo, Wusheng ; Luo, Lei and Sunden, Bengt LU
- organization
- publishing date
- 2022-09
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- blanching pretreatment, drying quality, energy efficiency, experimental techniques, heat, infrared drying characteristics, lily bulb, mass transfer
- in
- Journal of Thermal Science and Engineering Applications
- volume
- 14
- issue
- 9
- article number
- 091005
- publisher
- American Society Of Mechanical Engineers (ASME)
- external identifiers
-
- scopus:85144368679
- ISSN
- 1948-5085
- DOI
- 10.1115/1.4053693
- language
- English
- LU publication?
- yes
- id
- e7b7ae7b-c056-4214-b701-40abfb2106c6
- date added to LUP
- 2023-01-12 15:46:33
- date last changed
- 2023-11-21 15:28:52
@article{e7b7ae7b-c056-4214-b701-40abfb2106c6,
abstract = {{<p>Infrared drying characteristics and quality variations (color change, hardness, contents of polyphenol and flavonoid) of lily bulbs under blanching pretreatment are investigated. Influences of parameters such as pretreatment temperature and time and infrared drying temperature are discussed. Effective moisture diffusivity coefficient, activation energy, and energy consumption were calculated. Results showed that drying time was reduced by 62.5%, 56.3%, and 61.5% at 90 °C compared to 60 °C when blanching time was 4, 5, and 6 min, respectively. A blanching time of 5 min and drying temperature of 70 °C were ideal for pretreatment and drying to maintain good color quality. Hardness value of lily bulb decreased as drying temperature and blanching time increased. Seventy to eighty degree celcius was ideal drying condition to maintain good hardness quality. Blanching time and drying temperature differently affected contents of flavonoids and polyphenols of lily bulbs. Basically, when blanching time was relatively long and drying temperature was relatively high, the content of polyphenols was high.</p>}},
author = {{Huang, Dan and Yang, Pei and Qin, Yiting and Gong, Guiliang and Tang, Xiaohong and Luo, Wusheng and Luo, Lei and Sunden, Bengt}},
issn = {{1948-5085}},
keywords = {{blanching pretreatment; drying quality; energy efficiency; experimental techniques; heat; infrared drying characteristics; lily bulb; mass transfer}},
language = {{eng}},
number = {{9}},
publisher = {{American Society Of Mechanical Engineers (ASME)}},
series = {{Journal of Thermal Science and Engineering Applications}},
title = {{Infrared Drying Characteristics and Quality Variations of Lily Bulbs Under Blanching Pretreatment}},
url = {{http://dx.doi.org/10.1115/1.4053693}},
doi = {{10.1115/1.4053693}},
volume = {{14}},
year = {{2022}},
}