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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국미생물생명공학회 Journal of Microbiology and Biotechnology Journal of Microbiology and Biotechnology 제27권 제12호
- 발행연도
- 2017.1
- 수록면
- 2,119 - 2,128 (10page)
이용수
초록· 키워드
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Citrinin (CIT) is a toxic secondary metabolite produced by fungi belonging to the Penicillium, Aspergillus, and Monascus spp. This toxin has been detected in many agricultural products. In this study, a strain Y3 with the ability to eliminate CIT was screened and identified as Cryptococcus podzolicus, based on the sequence analysis of the internal transcribed spacer region. Neither uptake of CIT by cells nor adsorption by cell wall was involved in CIT elimination by Cryptococcus podzolicus Y3. The extracellular metabolites of Cryptococcus podzolicus Y3 stimulated by CIT or not showed no degradation for CIT. It indicated that CIT elimination was attributed to the degradation of intracellular enzyme(s). The degradation of CIT by C. podzolicus Y3 was dependent on the type of media, yeast concentration, temperature, pH, and initial concentration of CIT. Most of the CIT was degraded by C. podzolicus Y3 in NYDB medium at 42 h but not in PDB medium. The degradation rate of CIT was the highest (94%) when the concentration of C. podzolicus Y3 was 1 × 108 cells/ml. The quantity of CIT degradation was highest at 28°C, and there was no degradation observed at 35°C. The study also showed that acidic condition (pH 4.0) was the most favorable for CIT degradation by C. podzolicus Y3. The degradation rate of CIT increased to 98% as the concentration of CIT was increased to 20 μg/ml. The toxicity of CIT degradation product(s) toward HEK293 was much lower than that of CIT.
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참고문헌 (26)
참고문헌 신청
Aziz NH / 2002 / Influence of gamma-radiation on mycotoxin producing moulds and mycotoxins in fruits / Food Control 13 : 281 ~ 288
Belli N / 2006 / Impact of fungicides on Aspergillus carbonarius growth and ochratoxin A production on synthetic grapelike medium and on grapes / Food Addit. Contam 23 : 102
Blaszkewicz M / 2013 / Methods for analysis of citrinin in human blood and urine / Arch. Toxicol 87 : 1087 ~ 1094
CAST / 2003 / Mycotoxin: Risks in Plant, Animal, and Human Systems
Cao J / 2013 / Efficacy of Pichia caribbica in controlling blue mold rot and patulin degradation in apples / Int. J. Food Microbiol 162 : 167 ~ 173
Belli N / 2006 / Impact of fungicides on Aspergillus carbonarius growth and ochratoxin A production on synthetic grapelike medium and on grapes / Food Addit. Contam 23 : 102
Blaszkewicz M / 2013 / Methods for analysis of citrinin in human blood and urine / Arch. Toxicol 87 : 1087 ~ 1094
CAST / 2003 / Mycotoxin: Risks in Plant, Animal, and Human Systems
Cao J / 2013 / Efficacy of Pichia caribbica in controlling blue mold rot and patulin degradation in apples / Int. J. Food Microbiol 162 : 167 ~ 173
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