Korean journal of food and cookery science (한국식품조리과학회지)

Korean Society of Food and Cookery Science (한국식품조리과학회)
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Inhibition of N-nitrosodimethylamine Formation of Extracts from Citrus Seeds

감귤류 종자 추출물의 N-nitrosodimethylamine 생성 억제에 관한 연구

  • 오혁수 (안산공과대학 호텔조리과) ;
  • 안용석 (제주대학교 식품공학과) ;
  • 나임순 (제주대학교 식품공학과) ;
  • 오명철 (제주산업정보대학 관광호텔조리과) ;
  • 오창경 (제주산업정보대학 관광호텔조리과) ;
  • 김수현 (제주대학교 식품공학과)
  • Published : 2003.10.01
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Abstract

The effect of inhibition on N-nitrosodimethylamine (NDMA) formation by methanol extracts from 6 kinds of citrus seed (Citrus sunki, Citrus natsudaidai, Citrus sulcata, Citrus tangerina, Citrus grandis and Citrus obovoidea) were investigated. The contents of moisture, crude protein, crude fat, carbohydrate, ash, flavonoid and total phenol in citrus seeds were 4∼6, 11∼15, 32∼46, 22∼45, 2∼4%, 12∼24mg% and 53∼133mg%, respectively. The solid contents and yield of citrus seed extracts were 0.8∼1.0 and 0.7 ∼ 1.1%, respectively. Nitrite-scavenging activity by methanol extracts from citrus seeds increased with increasing extract dosage. Furthermore, the nitrite scavenging activity was pH dependent being the highest at pH 1.2 (42.7∼96.9%) and the lowest at pH 6.0 (19.9-62.6%). Scavenging effects of nitrite by reaction time showed high effects under 3hr reaction time. The inhibition effect of NDMA formation by the citrus seed was strengthened as the amount of extract increased. The inhibition rate of methanol extracts from citrus seeds on NDMA formation showed 1.2∼39.8%, 21.3∼60.1% and 47.4∼94.0%, according to add 1, 3 and 5$m\ell$, respectively. Therefore, the inhibition effect of NDMA formation by the citrus seed was strengthened as the concentration of extract increased.

감귤 6종류의 종자를 메탄올로 추출하여 이들 추출물에 의한 N-nitrosodimethylamine(NDMA) 생성억제효과를 검정하였다. 감귤류 종자의 수분함량은 4∼6%, 조단백질 함량 11∼15%, 조지방 32∼46%, 탄수화물 함량은 22∼45%이었으며, 회분함량은 2∼4%, 플라보노이드는 12∼24mg%, 폴리페놀함량은 22∼53mg%이었다. 감귤종자 메탄올 추출물의 추출수율은 0.7∼1.1%, 고형분 함량은 0.8∼1.2%이었다. 감귤종자 메탄올추출물에 의한 아질산염의 소거효과는 추출물의 첨가량이 증가할수록 그 소거율이 증가였다. 또한 아질산염 소거능은 pH 의존성이 커서, pH 1.2(42.7∼96.9%)에서 높은 가장 높은 소거효과를 보였으며 pH 6.0(19.9∼62.6%)에서 가장 낮은 효과를 보였다. 게다가 반응시간에 따른 아질산염 소거효과는 3시간 반응시켰을 때 가장 높았다. NDMA 생성 억제효과는 감귤 종자 추출물의 농도가 증가할수록 컸다. 즉 감귤종자 추출물을 각각 1, 3 및 5$m\ell$ 첨가하였을 때 NDMA 생성 억제율은 각각 1.2∼39.8%, 21.3∼60.1% 및 47.4∼94.0%이었다.

Keywords

References

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