Abstract

In this study, dietary fiber contents in cereals and pulses were determined by Mongeau-Brassard method to compare those to the AOAC officied method. The average total dietary fiber (TDF) contents by AOAC official method were 3% for cereals and 21% for pulses. The average ratios of soluble dietary fiber contents to TDF contents were 40% for cereals and 43% for pulses. The differences between TDF values (dry matter basis) by two methods were 0.1%-1.0% for cereals and 1.0-7.0% for pulses. The differences between two methods were caused by residual protein in fiber by Mongeau-Brassard method and by residual starch in fiber by AOAC official method. TDF\\error boundary values by Mongeau-Brassard method were little higher than those by AOAC official method. But seven foods except highly milled rice, brown rice and mungbean were F/Fc>1. Therefore, Mongeau-Brassard method was evaluated as precise as AOAC official method.

본 연구에서는 곡류와 두류의 식이섬유 함량을 AOAC 공정법과 Mongeau-Brassard법에 의하여 측정한 후 두 값을 비교, 검토하였다. AOAC 공정법에 의한 곡류의 평균 총 식이섬유 함량은 백미, 현미, 보리, 수수 및 메밀이 각각 1.21%, 3.08%, 10.38%, 4.73%, 4.59%였으며, 두류는 검정콩, 노란콩, 강남콩, 팥 및 녹두가 각각 22.31%, 21.66%, 10.82%, 21.94% 및 21.25%였다. Mongeau-Brassard법에 의한 곡류 및 두류의 총 식이섬유에 대한 수용성 식이섬유의 평균 함량비율은 각각 40% 및 43%이었다. 총 식이섬유함량(건량 기준)에 대한AOAC 공정법과 Mongeau-Brassard법에 의한 측정치의 차이는 곡류는 0.1~1/0%로서 작았으나, 두류의 경우 그차이는 1.0~7.0%로 나타났다. ${TDF}\pm{error boundary}$값은 Mongeau-Brassard법에 의한 값이 약간 컸으나, F/Fc>1.0이었던 백미, 현미, 녹두를 제외하고는 Mongeau-Brassard법이 AOAC 공정법에 비하여 덜 정확한 방법은 아니었다.

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