• Title/Summary/Keyword: 곰팡이독소

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식품 및 사료에서 발생하는 곰팡이독소의 독성 및 대사

  • Lee, Hui-Gwon;Hwang, Yeong-Hui;Kim, Min-Jeong;Kim, Mu-Gi;Lee, Seong-Eun;Lee, Hoe-Seon
    • Applied Biological Chemistry
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    • v.45 no.1
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    • pp.1-10
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    • 2002
  • 식품과 사료에서 곰팡이독소 오염은 세계적으로 중요한 문제이다. 곰팡이독소는 곰팡이의 이차대사산물로서 인축중독증을 야기하며 경제적인 손실을 초래한다. Aflatoxin, ergot alkaloid, fumonisin, ochratoxin, tremorgenic toxin, trichothecene 및 zearalenone 등이 식품과 사료에서 흘러 발생하는 곰팡이독소이다. 어떤 곰팡이는 하나 이상의 곰팡이독소를 생산하고, 또 어떤 곰팡이독소는 여러 종의 곰팡이에서 생성되기 때문에 여러 곰팡이독소가 함께 발견된다. 곰팡이독소의 발생에 영향을 끼치는 요인으로는 인위적으로 조절할 수 있는 보관과 환경적 조건도 포함된다. 기후와 같은 비본질적인 요인, 진균류의 계통 특이성 및 계통 변이와 같은 본질적인 요인 및 독소발생의 불안정성은 조절하기 어렵다. 곰팡이독소는 한 종의 동물에 있어서의 감수성과 종에 의존하며 인간에게 갖가지의 만성적 또는 급성적인 영향을 미친다. 그러나 반추동물은 곰팡이독소에 저항력을 가지고 있으며, 이는 반추동물의 위에 존재하는 미생물들이 곰팡이독소의 활성을 억제할 수 있기 때문이다. 곰팡이독소 피해의 경제적인 파급효과는 인축의 수명 단축, 축산물 생산감소, 오염된 식량과 사료의 처리 및 곰팡이독소의 문제점 해결을 위한 연구비용 등을 포함한다. 곰팡이독소 피해감소를 위한 국제적인 노력이 계속 진행되고 있지만 최근에 World Trade Organization이 발효되면서 동 식물이 지역간 자유로운 이동으로 곰팡이독소 피해 경감대책뿐만 아니라 피해측정이 어려워지고 있다.

곰팡이독소의 안전 한계치는 얼마인가

  • Qureshi A.A.
    • KOREAN POULTRY JOURNAL
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    • v.23 no.5 s.259
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    • pp.56-59
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    • 1991
  • '곰팡이 독소에 있어서는 안전 한계치란 허용될 수 없다. 각국별로 곰팡이독소 오염 한계치를 설정해놓고 있고 우리나라도 원료곡물에 50ppb, 사료에 20ppb로 설정되어 있지만 이는 원료곡물의 수입상의 문제점 등에 의해 설정된 최대허용치이지 절대 안전 영역은 아니다. 곰팡이독소에 대한 공통된 잘못된 인식은 사료에 항곰팡이제를 첨가함으로써 곰팡이독소 문제가 막아질 수 있다는 생각이다. 일단 한번 형성된 독소들은 독소흡착제거제의 사용을 제외하고는 현재 이용가능한 방법들로는 곰팡이독소를 파괴하거나 무독화시킬 수가 없다. 곰팡이독소 오염과 대응방법에 대한 인식의 제고가 절실하다.'

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사료 내 곰팡이독소의 객관적 접근 필요

  • Lee, In-Ho
    • Feed Journal
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    • v.4 no.12 s.40
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    • pp.101-104
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    • 2006
  • 우리나라의 사료관리법 상에서 곰팡이독소(Mycotoxins)의 규제 현황을 보면 이전에는 아플라톡신만을 유해물질 규제 대상으로 하다가, 오크라톡신을 추가하여 현재까지 규제 대상독소로 규정하고 있다. 그러나, 이미 사료공장과 관련 업체에서는 현행의 사료관리법에서 유해물질로서 규제하는 곰팡이독소보다도 규제대상이 아닌 후모니신이나 T-2독소 및 제아레나론을 비롯한 곰팡이독소가 중국산 곡물원료에서 더 문제가 된다는 사실을 외국기관에 직접 분석 의뢰한 샘플에서 나온 사실과 각종 정보경로를 통해서 알고 현재는 항곰팡이제와 더불어서 곰파이독소흡착제거제(Mycotoxin binders)를 병용해서 사용하는 것이 일반화되고 있다.

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Mycotoxin contaminations in swine diets and potential nutritional solutions (돼지사료내 곰팡이독소의 오염 및 영양학적 해결방안)

  • Son, Ah Reum
    • Journal of the Korean Applied Science and Technology
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    • v.35 no.4
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    • pp.1230-1242
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    • 2018
  • In the present work, we reviewed feed mycotoxin-related research and provide potential strategies to overcome feed mycotoxin issues. Cereal grains and cereal byproducts are most easily contaminated by fungus. Fungi in feed ingredients produce secondary metabolites such as aflatoxin, deoxynivalenol, and zearalenone, which are commonly found in feed ingredients. These mycotoxins in animal feeds and ingredients are regulated in many countries. Dietary mycotoxins have detrimental effects on immune systems and growth performance in pigs. A major harmful effect of dietary mycotoxin is reduced feed intake, resulting in deficient energy and nutrient intake and eventually depressed growth of pigs. The reduced energy and nutrient intake may be overcome possibly by increased energy and nutrient concentrations. Dietary supplementation of some mycotoxin binders may reduce the detrimental effects of mycotoxins. However, the effects of mycotoxin binders especially on deoxynivalenol and zearalenone have been reported to be variable depending on classes and concentration of mycotoxin, environmental condition, and type of mycotoxin binders.

Occurrence of Mycotoxins in Korean Grains and Their Simultaneous Analysis (한국산 곡류에서의 곰팡이독소 오염현황 및 동시분석)

  • Kim, Dong-Ho;Jang, Han-Sub;Choi, Gyu-Il;Kim, Hyun-Jung;Kim, Ho-Jin;Kim, Hyo-Lin;Cho, Hyun-Jung;Lee, Chan
    • Korean Journal of Food Science and Technology
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    • v.45 no.1
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    • pp.111-119
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    • 2013
  • Eleven mycotoxins, including aflatoxins, ochratoxin A, fumonisins, zearalenone, T-2 toxin, deoxynivalenol, and HT-2 toxin, were analyzed simultaneously in rice, barley, and maize produced in 2011 by liquid chromatography coupled with triple quadrupole mass spectrometry (LC/MS/MS). Limits of detection (LOD) are 0.2 ${\mu}g/kg$ for aflatoxin $B_1$, and $G_1$, 0.3 ${\mu}g/kg$ for aflatoxins $B_2$, and $G_2$, 0.1 ${\mu}g/kg$ for ochratoxin, fumonisins, zearalenone, and T-2 toxin and 3.0 ${\mu}g/kg$ for deoxynivalenol and HT-2 toxin. Limits of quantification (LOQ) were 0.6 ${\mu}g/kg$ for aflatoxins $B_1$, and $G_1$, 0.9 ${\mu}g/kg$ for aflatoxins $B_2$, and $G_2$, 0.3 ${\mu}g/kg$ for ochratoxin, fumonisins, zearalenone, and T-2 toxin and 10.0 ${\mu}g/kg$ for deoxynivalenol and HT-2 toxin. Recoveries for 11 mycotoxins ranged from 70.45 to 111.11%. Fumonisins, deoxynivalenol, and zaeralenone were detected from 0.9 to 334.0 ${\mu}g/kg$ in the polished rice, barley and raw corn cultivated in Korea. Other mycotoxins were not detected. Deoxynivalenol contamination was mainly found in barley (24 out of 43 samples) and the average value in positive samples was 113.30 ${\mu}g/kg$.

영양적 방법에 의한 곰팡이 독소의 피해 저감

  • Lee, Wang-Sik
    • Feed Journal
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    • v.2 no.10
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    • pp.116-119
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    • 2004
  • 사료중에 존재하는 위해요소로서, 곰팡이 독소는 아스퍼질러스, 페니실리움, 푸사리움속에 속하는 곰팡이의 2차 대사산물이며, 사람과 가축에 잠재적 독성이 있는 300여 가지의 곰팡이 대사산물이 발견되어지고 있다.(중략)

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Analysis of Total Aflatoxin, Ochratoxin A, Zearalenone, Deoxynivalenol and T-2 Toxin Contamination in Nuts (시중유통 견과류의 총아플라톡신, 오크라톡신 A, 제랄레논, 데옥시니발레놀, T-2 독소의 오염도 조사)

  • Hong, JoonBae;Park, Kun Taek
    • Journal of Food Hygiene and Safety
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    • v.34 no.1
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    • pp.58-64
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    • 2019
  • In the current study, 109 commercial nut samples were collected from different Korean markets and analyzed for the contamination of 5 different mycotoxins (aflatoxin, ochratoxin A, deoxynivalenol, zearalenone, and T-2 toxin) using ELISA kits. The results revealed that the most frequently detected mycotoxin was zearalenone (n=36, 33%), followed by aflatoxin (n=31, 28.4%) and ochratoxin A (n=30, 27.5%). Deoxynivalenol and T-2 toxin were also detected in 22 (20.3%) samples, respectively. Among 109 nut samples, 33 samples (30.3%) were contaminated only with one kind of mycotoxin, whereas 43 samples had at least 2 kinds of mycotoxins. Two samples were contaminated with as many as 4 different mycotoxins, and they were both walnuts. Although the monitoring results revealed the amount of aflatoxin contamination was under the safety criteria, there is no current safety guideline for other kinds of mycotoxins or multiple contaminations in Korea. Therefore, further studies should be performed to reveal the distribution of mycotoxin in different foods and propose appropriate safety guidelines for Korean markets.

The Studies on Real Condition of Mycotoxin Contamination in the Fields before Harvest and by the Storage of Rice Straw using as Roughage in Korea (국내 조사료용 볏짚의 수확 전 작물포 및 수확 후 저장에 따른 곰팡이독소 오염 실태 연구)

  • Sung, Ha Guyn
    • Journal of The Korean Society of Grassland and Forage Science
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    • v.33 no.1
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    • pp.21-29
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    • 2013
  • The studies were conducted to investigate real condition of mycotoxin contamination in the fields before harvest and by the storages of rice straw used as roughage in Korea. It was found mycotoxin contamination before harvest of rice straw that the rice plants were detected deoxynivalenol at the initial growth, ochratoxin A and deoxynivalenol at the middle growth, and deoxynivalenol and zearalenone at the harvest periods in the fields. Also, the rice plants were contaminated by various fungi such as Fusarium sp., Fusarium proliferatum, Penicillium sp., Gibberella sp., Gibberella zeae, Mucor circinelloides and Aspergillus oryzae. The levels of fungal contamination were $10^{3-4}$ cfu/g at the initial growth, and $10^{4-5}$ cfu/g at the middle growth and harvest periods. All storage types of rice straw were contaminated with zearalenone, deoxynivalenol and ochratoxins A. The samples of rice straw contaminating mycotoxins were account for 3% in bundle rice straw, and 38% in both types of square rice straw and rice round bale silage, respectively. When 105 samples of rice bale silage were analyzed for mycotoxins depending on the regional area, mycotoxin contamination was found in 46% of total samples in Korea. Regional contaminations of mycotoxins were respectively 48, 33, 40, 50 and 57% of samples in Gyeonggi, Gangwon, Chungcheng, Yeongnam and Honam area. Rice round bale silage was contaminated by three kinds of mycotoxins (zearalenone, deoxynivalenol and ochratoxinsA) in the all of area without Chungcheong area where was contaminated zearalenone and deoxynivalenol. Ochratoxins A, deoxynivalenol and zearalenone were respectively determinated with the average levels of 2.6, 413 and $338{\mu}g/kg$ in rice round bale silage for the overall area, even if it was some difference depending on each regional area. Therefore, the above results clearly show that the rice straws were exposed to the contamination by mycotoxin and mycotoxigenic fungi before harvest in the fields, and mycotoxin contamination was not dependent on the regional area or the storage types such as bundle rice straw, square rice straw and rice round bale silage.

Survey of Mycotoxin Contamination in Grains and Grain Products (곡류 및 곡류가공품 중 곰팡이독소 오염도 조사 연구)

  • Yang, Yongshik;Lee, Hyang Hee;Kim, Ae Gyeong;Ryu, Keun Young;Choi, Su Yeon;Seo, Doo Ri;Seo, Kye Won;Cho, Bae Sik
    • Journal of Food Hygiene and Safety
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    • v.34 no.2
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    • pp.205-211
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    • 2019
  • This study surveyed mycotoxin contamination in grains and grain products, which were purchased from supermarkets and traditional markets from October 2017 to September 2018 in Gwangju (Metropolitan City). A total of 127 samples including adlay, sorghum, millet, rice, oats, barley, buckwheat, corn as grains, and rice flour, buckwheat flour, roasted barley and corn, as grain products were surveyed. The tested mycotoxins were aflatoxin ($AFB_1$, $AFB_2$, $AFG_1$, $AFG_2$), fumonisin ($FUB_1$, $FUB_2$), ochratoxin A (OTA), and zearalenone (ZON). Mycotoxins were analyzed simultaneously with a UPLC-tandem mass spectrometry method. Fumonisin ($B_1+B_2$) was detected at the range of $4.8{\sim}738.5{\mu}g/kg$ in 35 samples and zearalenone at $8.4{\sim}507.6{\mu}g/kg$ in 20 samples, respectively. No other mycotoxins were detected. Risk assessment was evaluated by using estimated daily intake (EDI) and provisional maximum tolerable daily intake (PMTDI) in accordance with the Joint FAO/WHO Expert Committee on Food Additives (JECFA). When the hazard index (HI) was expressed as $(EDI/PMTDI){\times}100$, the HI (%) showed in the range of 0.0019~1.9526%. Based on these results, mycotoxin concentrations in the grains and grain products were within safe levels.