한국식품위생안전성학회지 (Journal of Food Hygiene and Safety)

  • 제37권5호
  • /
  • Pages.332-338
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  • 2022
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  • 1229-1153(pISSN)
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  • 2465-9223(eISSN)
한국식품위생안전성학회 (The Korean Society of Food Hygiene and Safety)
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Comparison of Dietary Fiber and Free Sugar Content Between Raw and Cooked Cereal Grains

  • Lee, Rheeno (Department of Food Science and Technology, Jeonbuk National University) ;
  • Kim, Yong-Suk (Department of Food Science and Technology, Jeonbuk National University)
  • 투고 : 2022.09.27
  • 심사 : 2022.10.19
  • 발행 : 2022.10.30
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초록

곡류는 대한민국을 비롯한 많은 국가에서 주요 식단으로 자리매김하고 있으며, 여러 형태로 섭취되고 있지만 밥 형태로 익혀 먹는 방법이 가장 흔히 알려져 있다. 쌀과 밥 형태의 국내산 현미, 백미, 보리와 귀리의 식이섬유와 유리당 함량을 분석하고 이들의 변화를 비교하기 위해 해당 연구를 진행하였다. 총 식이섬유 함유량은 보리밥(11.62±1.26 에서 2.96±0.90 g/100 g)에서 가장 높은 감소율을 보였으며, 귀리 (8.1±0.34 에서 8.1±0.32 g/100 g)는 거의 변화가 나타나지 않을 정로도 차이가 없었다. 이는 귀리의 수용성 식이섬유가 2.1 g/100 g 정도 감소하였지만 불용성 식이섬유의 함량이 2.2 g/100 g 정도 증가하여 총 식이섬유에는 영향을 주지 않은 것으로 나타났다. 현미와 백미에서는 표준당 6종류 중 sucrose만 검출되었으며 현미밥의 sucrose 함량이 약 0.6 g/100 g 감소하였고, 백미밥에서는 검출되지 않았다. Fructose, sucrose와 raffinose가 보리 (0.09, 0.58, 0.22 g/100 g)와 귀리 (0.08, 0.83, 0.19 g/100 g)에서 검출되었으며, 추가로 보리에서는 maltose (0.09 g/100 g)도 함유된 것으로 나타났다. 조리 후에 모든 곡물에서 유리당 함량이 감소한 것으로 나타났다. 이를 통해 곡류를 조리할 시 식이섬유와 유리당의 함량이 감소하는 효과가 있다는 것을 알 수 있다. 본 연구 결과는 다양한 곡류의 조리에 따른 영양 연구에 도움이 될 것으로 판단되며, 일상 식단에 식이섬유 섭취량을 늘리고 싶거나 당분 조절이 필요한 소비자들에게 정보를 제공함으로써 도움이 될 것이라고 여겨진다.

Cereal grains are the dietary staple in many countries, including the Republic of Korea. These grains are usually consumed cooked. Korean grown raw and cooked brown non-glutinous rice (BNR), white non-glutinous rice (WNR), oats, and barley were analyzed to assess the effects of cooking on dietary fiber and free sugar content. The largest decrease in total dietary fiber (TDF) after cooking was observed in barley (11.62±1.26 to 2.96± 0.90 g/100 g), and the smallest decrease was observed in oats (8.1±0.34 to 8.1±0.32 g/100 g). Soluble dietary fiber decreased in oats (3.35±0.94 to 1.25±0.03 g/100 g) while insoluble dietary fiber increased (4.76±0.78 to 6.90±0.30 g/100 g) after cooking. TDF content was not changed. Of the six free sugars routinely assessed, only sucrose was detected in BNR and WNR. Sucrose decreased by about 0.6 g/100 g in BNR, and was not detected in WNR, after cooking. Fructose, sucrose, and raffinose were detected in oats (0.08, 0.83, and 0.19 g/100 g) and barley (0.09, 0.58, and 0.22 g/100 g) Maltose was also detected in barley (0.09 g/100 g). Total sugar content decreased in every cereal grain sample after cooking. This research reveals that dietary fiber and free sugar content can be reduced by cooking cereal grains.

키워드

과제정보

This work was carried out with the support of "Cooperative Research Program for Agricultural Science & Technology Development (Project No. PJ013397032022)" Rural Development Administration, Republic of Korea.

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