Journal of Applied Biological Chemistry

The Korean Society for Applied Biological Chemistry (한국응용생명화학회)
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The Chemical Quality Properties during Processing Treatment of Brown Rice Varieties with Different Amylose Content

아밀로오스 함량이 다른 현미의 품종별 가공 처리에 따른 화학적 품질 특성

  • Received : 2009.10.21
  • Accepted : 2010.01.06
  • Published : 2010.03.31
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Abstract

This study was carried out to determine the chemical quality properties during processing treatment using the brown rice varieties with different amylose content. It was investigated using Hwaseonchalbyeo, Baegjinjubyeo, Ilpumbyeo and Goamibyeo varieties. As for the chemical properties of fried brown rice, phenolic compounds increased by the frying treatment. The component of aroma after the frying treatment, it showed that aldehydes sorts of benzaldehyde, phenylmethanal had the highest content. The content of vitamin B group during parboiling treatment and frying treatment decreased as a whole than the non-treatment brown rice. The higher the content of amylose was, the more the content of vitamin $B_2$ increased. The higher the content of amylose was, the more the content of vitamin $B_6$ and mineral contents decreased. The component of mineral during frying treatment, it showed that Mg had the highest content. The higher the content of amylose increased, the more the blue value increased. The 2,2-diphenyl-$\beta$-picryl-hydrazyl (DPPH) after the frying treatment was relatively increased.

아밀로오스 함량이 서로 다른 품종의 현미를 이용하여 가공 처리 즉, frying 처리와 parboiling 처리를 하여 여러 화학적 특성을 조사하였다. 페놀성 물질 함량은 품종에 따른 뚜렷한 경향은 나타나지 않았으며, 일품벼의 실험 결과를 볼 때 frying 처리 후 현미가 백미보다 높은 페놀성 물질 함량을 나타내었다. Blue value는 아밀로오스 함량에 따라 비례적으로 증가하는 경향을 보임으로서 고도의 상관관계에 있다고 판단된다. 향기 성분은 Hydrocarbons류와 Esters류가 각각 3종, Alcohols류와 Acetals류가 각각 2종, Aldehydes류가 5종, Acids류가 6종이 동정되었다. 그 중에서 Aldehydes류의 Benzaldehyde, Phenylmethanal이 가장 높은 함량을 나타내었다. Vitamin B군은 현미 무처리구보다는 가열처리 후 frying 처리구의 vitamin 함량이 전반적으로 감소되었으며, vitamin $B_1$함량은 1.4189~1.6494 mg에서 0.3102~0.7097 mg으로 감소되었고, vitamin $B_2$는 아밀로오스 함량이 높을수록 함량이 증가하였고, parboiling 처리구가 무처리구에 비해 높게 나타났다. Vitamin $B_6$는 아밀로오스 함량이 높을수록 함량이 감소하였다. Niacin은 함량이 상대적으로 다른 vitamin B군에 비해 가장 높은 함량을 보였다. 무기질 함량을 조사한 결과 Mg이 가장 높은 함량을 나타냈으며 대체적으로 아밀로오스함량에 비례하여 증가하는 경향을 보였다. 현미를 품종과 처리 조건에 따라 달리하여 frying 처리한 전자 공여능 결과 백미보다는 현미상태에서 대체적으로 높은 전자 공여능 값을 보여주었고, 무처리구보다 유탕 처리 후 좀더 높은 활성을 나타내었다.

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