Effects of high hydrostatic pressure treatment on the enhancement of functional components of germinated rough rice (<i>Oryza sativa</i> L.)

다국어 초록 (Multilingual Abstract)

<P><B>Abstract</B></P> <P>This study was performed to evaluate the enhancement of functional components of germinated rough rice. Rough rice was germinated at 37°C for 6days, and subjected to a high hydrostatic pressure treatment (HPT) at 30MPa for 24h (HP24) and 48h (HP48). Germinated rough rice without HPT (HP0), HP24, and HP48 were analysed for their functional components. The highest γ-aminobutyric acid, total arabinoxylan, and tricin 4′-<I>O</I>-(<I>threo</I>-β-guaiacylglyceryl) ether contents were 121.21mg/100g, 10.6%, and 85.82μg/g, respectively, after HP48 for 2days. γ-Oryzanol contents increased from 23.19–36.20mg/100g (at HP0) to 31.80–40.32mg/100g (at HP48). The highest vitamin B (60.99mg/100g) and E (4.07mg/100g) contents were observed after HP24 for 5 and 2days, respectively. These results suggest that a combination of HPT and germination efficiently enhances the functional characteristics of rough rice.</P> <P><B>Highlights</B></P> <P> <UL> <LI> High pressure treatment (HPT) increased the extractability of functional components. </LI> <LI> HPT accelerated the biosynthesis as an enhancement of the enzymatic reaction rate. </LI> <LI> HPT provided the useful information for utilization of germinated rough rice. </LI> </UL> </P>