Pressure Drop Process as a Pretreatment for Enhancing Rehydration of Adzuki Beans (<i>Vigna angularis</i>)
Pressure drop processes, such as dissolved inorganic carbon and gun-puffing, have shown utility in the food industry, but their reliance on heat remains a limiting factor. This study involved the development of a processor capable of performing nonthermal pressure drop treatment, which minimizes the...
Saved in:
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2025-06-01
|
| Series: | Foods |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-8158/14/13/2286 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849467238720995328 |
|---|---|
| author | Suyeon Lee Sangoh Kim Seokwon Lim |
| author_facet | Suyeon Lee Sangoh Kim Seokwon Lim |
| author_sort | Suyeon Lee |
| collection | DOAJ |
| description | Pressure drop processes, such as dissolved inorganic carbon and gun-puffing, have shown utility in the food industry, but their reliance on heat remains a limiting factor. This study involved the development of a processor capable of performing nonthermal pressure drop treatment, which minimizes thermal changes in food. In addition, its effects on the structure and soaking efficiency of adzuki beans were analyzed. Two improved pressure drop processes were tested: PDA, which applied 1 kgf/cm<sup>2</sup> of pressure before release, and PDB, which applied a higher pressure and gradually decreased it in steps of 1 kgf/cm<sup>2</sup>. Both the PDA and PDB pretreatments enhanced soaking more effectively than heat treatments at 60 °C and 100 °C, whereas no significant effect was observed at 25 °C, indicating a minimal heat requirement for moisture and gas release. Notably, repeated PDB application (more than 40 times) further increased the moisture absorption without thermal influence. Scanning electron microscopy revealed that the PDA, PDB, and heat treatments caused cracks in the hilum region and increased surface wrinkling and mesh structure deformation. These findings demonstrate the potential of pressure drop treatment to improve soaking efficiency through structural modification, supporting its use as an effective nonthermal pretreatment method. |
| format | Article |
| id | doaj-art-33573f61192e4a2e99be2f9e958ba256 |
| institution | Kabale University |
| issn | 2304-8158 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Foods |
| spelling | doaj-art-33573f61192e4a2e99be2f9e958ba2562025-08-20T03:28:25ZengMDPI AGFoods2304-81582025-06-011413228610.3390/foods14132286Pressure Drop Process as a Pretreatment for Enhancing Rehydration of Adzuki Beans (<i>Vigna angularis</i>)Suyeon Lee0Sangoh Kim1Seokwon Lim2Department of Food Science & Biotechnology, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Gyeonggi-do, Republic of KoreaDepartment of Food Engineering, Dankook University, 119, Dandae-ro, Dongnam-gu, Cheonan-si 31116, Chungcheongnam-do, Republic of KoreaDepartment of Food Science & Biotechnology, Gachon University, 1342 Seongnam-daero, Sujeong-gu, Seongnam-si 13120, Gyeonggi-do, Republic of KoreaPressure drop processes, such as dissolved inorganic carbon and gun-puffing, have shown utility in the food industry, but their reliance on heat remains a limiting factor. This study involved the development of a processor capable of performing nonthermal pressure drop treatment, which minimizes thermal changes in food. In addition, its effects on the structure and soaking efficiency of adzuki beans were analyzed. Two improved pressure drop processes were tested: PDA, which applied 1 kgf/cm<sup>2</sup> of pressure before release, and PDB, which applied a higher pressure and gradually decreased it in steps of 1 kgf/cm<sup>2</sup>. Both the PDA and PDB pretreatments enhanced soaking more effectively than heat treatments at 60 °C and 100 °C, whereas no significant effect was observed at 25 °C, indicating a minimal heat requirement for moisture and gas release. Notably, repeated PDB application (more than 40 times) further increased the moisture absorption without thermal influence. Scanning electron microscopy revealed that the PDA, PDB, and heat treatments caused cracks in the hilum region and increased surface wrinkling and mesh structure deformation. These findings demonstrate the potential of pressure drop treatment to improve soaking efficiency through structural modification, supporting its use as an effective nonthermal pretreatment method.https://www.mdpi.com/2304-8158/14/13/2286adzuki beanspressure drop processsoakingwater absorptionmicrostructure |
| spellingShingle | Suyeon Lee Sangoh Kim Seokwon Lim Pressure Drop Process as a Pretreatment for Enhancing Rehydration of Adzuki Beans (<i>Vigna angularis</i>) Foods adzuki beans pressure drop process soaking water absorption microstructure |
| title | Pressure Drop Process as a Pretreatment for Enhancing Rehydration of Adzuki Beans (<i>Vigna angularis</i>) |
| title_full | Pressure Drop Process as a Pretreatment for Enhancing Rehydration of Adzuki Beans (<i>Vigna angularis</i>) |
| title_fullStr | Pressure Drop Process as a Pretreatment for Enhancing Rehydration of Adzuki Beans (<i>Vigna angularis</i>) |
| title_full_unstemmed | Pressure Drop Process as a Pretreatment for Enhancing Rehydration of Adzuki Beans (<i>Vigna angularis</i>) |
| title_short | Pressure Drop Process as a Pretreatment for Enhancing Rehydration of Adzuki Beans (<i>Vigna angularis</i>) |
| title_sort | pressure drop process as a pretreatment for enhancing rehydration of adzuki beans i vigna angularis i |
| topic | adzuki beans pressure drop process soaking water absorption microstructure |
| url | https://www.mdpi.com/2304-8158/14/13/2286 |
| work_keys_str_mv | AT suyeonlee pressuredropprocessasapretreatmentforenhancingrehydrationofadzukibeansivignaangularisi AT sangohkim pressuredropprocessasapretreatmentforenhancingrehydrationofadzukibeansivignaangularisi AT seokwonlim pressuredropprocessasapretreatmentforenhancingrehydrationofadzukibeansivignaangularisi |