Drying;
Electroporation;
Mass transfer;
Pulsed electric field;
Rehydration;
MICROSCOPIC IMAGES;
KINETICS;
QUALITY;
D O I:
10.1016/j.ifset.2023.103449
中图分类号:
TS2 [食品工业];
学科分类号:
0832 ;
摘要:
In this study, to investigate the effects of various pulsed electric field (PEF) strengths (0.5-2.5 kV/cm) on drying sweet potato, drying kinetics, mass transfer rate, rehydration kinetics, and microstructure of sweet potato during hot air drying were observed. After pretreatment of PEF, electric conductivity, and Z- index were increased as the strengths of PEF increased. The drying time was approximately 420 min for PEF at 1.5 kV/cm -2.5 kV/cm and was almost 500 min for control group and the maximum values for moisture diffusivity and mass transfer was observed in 2.5 kV/cm. The shrinkage ratio and microstructure of sweet potatoes did not differ among groups; however, parenchyma cell membranes were empty and disrupted by PEF. The rehydration time decreased as the PEF strength increased, similar to the trend in drying times. PEF pretreatment resolves long-term hot air drying side effects such as quality deterioration and time requirements.
机构:
College of New Energy, Zhengzhou University of Light Industry, ZhengzhouCollege of New Energy, Zhengzhou University of Light Industry, Zhengzhou
Liu H.
Tian Y.
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机构:
School of Energy and Power Engineering, Zhengzhou University of Light Industry, ZhengzhouCollege of New Energy, Zhengzhou University of Light Industry, Zhengzhou
Tian Y.
Liu J.
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机构:
College of New Energy, Zhengzhou University of Light Industry, ZhengzhouCollege of New Energy, Zhengzhou University of Light Industry, Zhengzhou
Liu J.
Jiao J.
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h-index: 0
机构:
School of Energy and Power Engineering, Zhengzhou University of Light Industry, ZhengzhouCollege of New Energy, Zhengzhou University of Light Industry, Zhengzhou
Jiao J.
Wu X.
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h-index: 0
机构:
School of Energy and Power Engineering, Zhengzhou University of Light Industry, ZhengzhouCollege of New Energy, Zhengzhou University of Light Industry, Zhengzhou
机构:
Univ Putra Malaysia, Fac Engn, Dept Biol & Agr Engn, Upm Serdang 43400, Selangor, Malaysia
Univ Uyo, Fac Engn, Dept Agr & Food Engn, Uyo 52021, NigeriaUniv Putra Malaysia, Fac Engn, Dept Biol & Agr Engn, Upm Serdang 43400, Selangor, Malaysia
Onwude, Daniel I.
Hashim, Norhashila
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机构:
Univ Putra Malaysia, Fac Engn, Dept Biol & Agr Engn, Upm Serdang 43400, Selangor, MalaysiaUniv Putra Malaysia, Fac Engn, Dept Biol & Agr Engn, Upm Serdang 43400, Selangor, Malaysia
Hashim, Norhashila
Abdan, Khalina
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h-index: 0
机构:
Univ Putra Malaysia, Fac Engn, Dept Biol & Agr Engn, Upm Serdang 43400, Selangor, MalaysiaUniv Putra Malaysia, Fac Engn, Dept Biol & Agr Engn, Upm Serdang 43400, Selangor, Malaysia
Abdan, Khalina
Janius, Rimfiel
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机构:
Univ Putra Malaysia, Fac Engn, Dept Biol & Agr Engn, Upm Serdang 43400, Selangor, MalaysiaUniv Putra Malaysia, Fac Engn, Dept Biol & Agr Engn, Upm Serdang 43400, Selangor, Malaysia
Janius, Rimfiel
Chen, Guangnan
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机构:
Univ Southern Queensland, Fac Hlth Engn & Sci, Toowoomba, Qld 4350, AustraliaUniv Putra Malaysia, Fac Engn, Dept Biol & Agr Engn, Upm Serdang 43400, Selangor, Malaysia
Chen, Guangnan
Kumar, Chandan
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机构:
Queensland Univ Technol, Sch Math Sci, Brisbane, Qld 4001, Australia
Queensland Govt, Dept Agr & Fisheries, Agrisci Queensland, Salisbury, Qld 4107, AustraliaUniv Putra Malaysia, Fac Engn, Dept Biol & Agr Engn, Upm Serdang 43400, Selangor, Malaysia