국내 비오염 논토양에서 재배한 현미와 백미 중 비소화학종 함량

• Published in: Journal of applied biological chemistry 2018, 61(4), , pp.391-395
• Main Authors: 김다영, Da-young Kim, 김지영, Ji-young Kim, 김계훈, Kye-hoon Kim, 김권래, Kwon-rae Kim, 김혁수, Hyuck-soo Kim, 김정규, Jeong-gyu Kim, 김원일, Won-il Kim
• Format: Article
• Language: Korean
• Subjects: Arsenic · Husked rice · Inorganic arsenic · Monitoring · Polished rice; 농학; 모니터링·무기비소·백미·비소·현미
• ISSN: 1976-0442; 2234-7941

논토양과 쌀의 비소 오염은 식품의 안전성과 관련하여 관심이 증가하고 있다. 본 연구는 우리나라 비오염 논토양에서 생산된 현미와 백미 중 비소 총함량 및 무기비소 함량을 조사하였다. 쌀 중 비소화학종은 1% 질산(HNO 3 )을 사용하여 추출하였고 HPLC-ICP-MS로 분석하였다. 현미 및 백미 중 총비소 함량은 각각 0.18, 0.11 mg kg -1 이었고, 무기비소의 함량은 각각 0.11, 0.07 mg kg-1 이었다. 이들 함량은 코덱스 식품규격위원회 권장기준인 현미 0.35 mg kg -1 과 백미 0.2mg kg -1 을 초과하지 않았고 우리나라 백미 기준 이하로 안전한 수준이었다. 현미 및 백미 중 총비소 함량에 대한 무기비소의 평균 함량비은 각각 0.65과 0.67이고 범위는 0.08-1.0 수준이었다. 본 조사에서 수행한 백미 중 무기비소 모니터링 한 결과에 대한 발암 위해도는 평균과 범위가 9.37×10-5 (2.38×10 -5 -1.90×10 -4 )로 허용 수준인10 -6 -10 -4 을 고려할 때 장기간의 쌀 섭취를 통한 암발생 확률은 낮게 나타나 위해성이 낮은 것으로 판단된다. There is an increasing concern over arsenic (As) contamination of paddy soil and rice with regard to food safety. This study was conducted to investigate total and inorganic As concentration in one hundred husked and polished rice samples collected at the non-contaminated paddy soil in Korea. Arsenic species in rice samples were extracted using 1% nitric acid (HNO 3 ) with a microwave oven and were measured using high performance liquid chromatography coupled with inductively coupled plasma-mass spectrometry. Mean concentrations of total As in husked rice and polished rice were 0.18 and 0.11 mg kg -1 , respectively. Also, average inorganic As concentrations in husked rice and polished rice were 0.11 and 0.07 mg kg -1 , respectively. These levels are lower than the standard guideline value 0.35 and 0.2 mg kg -1 for inorganic As in husked and polished rice recommended by Codex Committee on Contaminants in Foods and Ministry of Food and Drug Safety, respectively. The mean of the inorganic As ratio for the total amount of As was 0.65 and 0.67 for husked rice and polished rice, respectively, and the range was from 0.08 to 1.0. For health risk assessment, the average value of cancer risk probability was 9.24×10 -5 and ranged from 2.30×10 -5 to 1.90×10 -4 . Therefore, human exposure to As through dietary intake of surveyed rice samples might considered to be a low health risk.