High-Pressure Induced Transfomation of Agroproducts
Project/Area Number |
19780190
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Research Category |
Grant-in-Aid for Young Scientists (B)
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Allocation Type | Single-year Grants |
Research Field |
Agricultural environmental engineering
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Research Institution | Nigata University of Phermacy and Applied Life Sciences |
Principal Investigator |
UENO Shigeaki Nigata University of Phermacy and Applied Life Sciences, 大学院・農学研究科, 助教 (80410223)
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Project Period (FY) |
2007 – 2009
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Project Status |
Completed (Fiscal Year 2009)
|
Budget Amount *help |
¥4,000,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥600,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2007: ¥1,400,000 (Direct Cost: ¥1,400,000)
|
Keywords | 高圧処理 / 農産物 / 内部構造 / 機能性 / 形質転換 / 遊離アミノ酸 / 抗酸化性 / 物質移動 / Hi-Pit / 誘電特性 |
Research Abstract |
The effects of high-hydrostatic pressure (HHP) on agroproducts and soybean cotyledon as a cellular biological material were investigated from the viewpoints of the cell structure and enzyme reaction system. Damage to cell structure was evaluated by measuring dielectric properties using the Cole-Cole arc, the radius of which decreased as pressure level increased. Results suggested that cell structure was damaged by HHP. The distribution of free amino acids was measured after HHP (200MPa) of soybean soaked in water or sodium glutamate (Glu) solution. HHP resulted in high accumulation of free amino acids in water-soaked soybean, due to proteolysis. HHP of soybean in Glu solution caused higher accumulation of γ-aminobutyric acid, suggesting that both proteolysis and specific Glu metabolism were accelerated by HPP. We concluded that HHP partially degraded cell structure and accelerated biochemical reactions by allowing enzyme activities to remain. These events can be considered "high-pressure induced transformation" of soybean.
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Report
(4 results)
Research Products
(74 results)
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[Presentation] 高圧処理を応用した食品素材の機能性富化2009
Author(s)
重松亨, 中島加奈子, 林真由美, 稲垣和世, 川村知輝, 中村真己, 上野茂昭, 藤井智幸
Organizer
日本食品工学会第10回年次大会
Place of Presentation
石川県立大学(石川県)
Year and Date
2009-08-02
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[Presentation] 高圧によるコメの改質2007
Author(s)
上野茂昭, 村上美奈, 重松亨, 藤井智幸
Organizer
第四回新潟食品科学バイオフォーラム
Place of Presentation
新潟薬科大, 新潟
Year and Date
2007-07-28
Related Report
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[Presentation] 高圧によるコメの改質2007
Author(s)
藤井智幸, 重松 亨, 上野茂昭
Organizer
国際食品工業展アカデミックプラザ
Place of Presentation
東京ビッグサイト,東京
Year and Date
2007-06-05
Related Report
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