| Project/Area Number |
24500961
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Eating habits, studies on eating habits
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| Research Institution | Sanyo Women's College |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
SUGIYAMA Sumi 県立広島大学, 人間文化学部, 教授 (10300419)
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| Co-Investigator(Renkei-kenkyūsha) |
SHIOTA Ryoko (HARADA Ryoko) 鈴峰女子短期大学, 講師 (30626114)
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| Project Period (FY) |
2012-04-01 – 2015-03-31
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| Project Status |
Completed (Fiscal Year 2014)
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| Budget Amount *help |
¥5,330,000 (Direct Cost: ¥4,100,000、Indirect Cost: ¥1,230,000)
Fiscal Year 2014: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2013: ¥260,000 (Direct Cost: ¥200,000、Indirect Cost: ¥60,000)
Fiscal Year 2012: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
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| Keywords | wheat starch / amylopectine / B starch / RVA / gelatinization / lecithin / lysolesichin / 小麦澱粉 / 小粒子 / 大粒子 / アミロペクチン / 糊化 / レシチン / リゾレシチン / でんぷん / 小麦 |
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| Outline of Final Research Achievements |
There are three types of LPC in wheat starch: LPC of the starch granule surface, stable LPC forming starch-lipid complexes, and changeable LPC loosely bound with polysaccharides. We suggest that changeable LPC plays an important role in starch gelation.
The addition of LPC (0.1-1.0%, w/w) to the starch suspension resulted in increased PT (onset temperature of the pasting process) of RVA profiles. However, the addition of PC (0.3~2.6%) resulted in decreased PT and increased peak viscosity compared to control. On the other hand, RVA profiles of waxy wheat starch were hardly influenced by PC or LPC addition.The amount of PC and LPC was fixed at 0.1%, and the proportion of LPC was varied from 9-50%. As the proportion of LPC increased, PT of A-type starch was elevated compared to control, while PT of B-type starch was decreased and peak viscosity was increased. In conclusion, PC and LPC produced opposing effects on the PT of wheat starch, and amylose is necessary for these effects.
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