Zhang Ting, Li Deliang, Li Jie
College of Animal Science and Technology, Hunan Agriculture University, Changsha 410128, China.
Wei Sheng Wu Xue Bao. 2012 Feb 4;52(2):152-9.
The occurrence of off-flavor problems caused by prokaryotes cyanobacteria and actinomycetes is a worldwide water and food quality issue. Based on literatures on two earthy-muddy-smelling metabolites, (i. e., geosmin and 2-methylisoborneol (2-MIB)), we reviewed their chemical characteristics, biosynthetic pathways, genes and enzymes that are involved in biosynthesis. Then we discussed current research questions related to off-flavor and future directions. Finally, we addressed the significance of probable key regulatory mechanism for the production and release of geosmin and 2-MIB, which could provide more scientific strategies to better control off-flavors outbreaks in drinking and aquaculture water.
由原核生物蓝细菌和放线菌引起的异味问题是一个全球性的水和食品质量问题。基于关于两种土腥味代谢物（即土臭素和2-甲基异莰醇（2-MIB））的文献，我们综述了它们的化学特性、生物合成途径、参与生物合成的基因和酶。然后我们讨论了与异味相关的当前研究问题和未来方向。最后，我们阐述了土臭素和2-MIB产生和释放的可能关键调控机制的重要性，这可为更好地控制饮用水和水产养殖水中异味爆发提供更科学的策略。
