| Project/Area Number |
21780241
|
|---|
| Research Category |
Grant-in-Aid for Young Scientists (B)
|
| Allocation Type | Single-year Grants |
|---|
| Research Field |
Zootechnical science/Grassland science
|
|---|
| Research Institution | Hokkaido University |
|---|
Principal Investigator |
MITANI Tomohiro 北海道大学, 大学院・農学研究院, 特任助教 (80451409)
|
|---|
| Project Period (FY) |
2009 – 2011
|
| Project Status |
Completed (Fiscal Year 2011)
|
| Budget Amount *help |
¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2009: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
|
|---|
| Keywords | 栄養・飼養 / 酪農生産システム / 畜産学 / 農林水産物 |
|---|
| Research Abstract |
In dairy industry, a quality deterioration occurred by lipid oxidation of raw milk become a problem. This study objected to investigate an occurrence factor and prevention against lipid oxidation of raw milk during preservation period. Hexanal yielded at final step of lipid oxidation was produced from polyunsaturated fatty acids(PUFA) through a peroxide lipid. For milk containing a lot of highly-unsaturated fatty acid such as linolenic acid, hexanal was yielded at early preservation period. Conversely, for milk containing a lot of PUFA such as linoleic acid, hexanal was yielded 3 or 5 days after refrigerated storage. It is known that feeding regime for dairy cows strongly affected on fatty acid profile of milk. It would be considered usage and distribution of raw milk which is produced from different feeding regime.
|
