Growth enhancement effect and food process design by high-voltage pulsed electric field with Aspergillus SP
Project/Area Number |
15K06574
|
Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Biofunction/Bioprocess
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Research Institution | Gunma University |
Principal Investigator |
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Co-Investigator(Kenkyū-buntansha) |
谷野 孝徳 群馬大学, 大学院理工学府, 助教 (50467669)
|
Project Period (FY) |
2015-04-01 – 2018-03-31
|
Project Status |
Completed (Fiscal Year 2017)
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Budget Amount *help |
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2015: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
|
Keywords | 高電圧パルス / 麹菌 / 増殖 / クエン酸 / グルコース / PEF / 黒麹カビ / 高電圧パルス電界 / コウジカビ / 発酵 / パルス電界 |
Outline of Final Research Achievements |
In this study, we investigated the induction of the biological function of Aspergillus niger by pulsed electric field (PEF) stimulation. In particular, the profiles of growth and citric acid fermentation were focused on. All PEF-treated A. niger cultures showed significant increases in mycelial clump size and dry cell weight. These increases changed the profiles of glucose consumption and citric acid production in citric acid fermentation. Combining PEF stimulation with fed-batch citric acid fermentation increases citric acid productivity. The fermentation times to reach the maximum citric acid concentration in the fermentation of PEF-treated and non-PEF-treated A. niger were 16 and 29 days, respectively. Moreover, the volumetric citric acid production rates in the fermentation of PEF-treated and non-PEF-treated A. niger were 1.67 and 0.96 g l-1 day-1, respectively.
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Report
(4 results)
Research Products
(29 results)
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[Journal Article] Effects of shock waves, ultraviolet light, and electric fields from pulsed discharges in water on inactivation of Escherichia coli.2018
Author(s)
Sun, B., Xin, Y, Zhu, X, Gao, Z, Yan, Z, Ohshima, T.
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Journal Title
Bioelectrochemistry
Volume: 120
Pages: 112-119
DOI
Related Report
Peer Reviewed
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