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| Content Provider | frontiers |
|---|---|
| Author | Wang, Lin Chen, Ming Luo, Xuecai Fan, Yanan Zheng, Zai He, Zongqin Yin, Ruochun Meng, Tao Xu, Shuyang Pan, Yu Su, Jihu Du, Jiangfeng Zhang, Liang Tian, Xiaohe Tian, Yupeng Chen, Dongdong Ge, Honghua Zhang, Nannan Li, Ping |
| Abstract | The presence of the phenol gossypol has severely limited the utilization of cottonseed meal and oil in the food and animal feed industries. Highly efficient means of biodegradation of gossypol and an understanding of the cytotoxicity of its degradation products remain outside current knowledge and are of universal interest. In this work, we showed for the first time that laccase can catalyze the intramolecular annulation of the aldehyde and hydroxyl groups of gossypol for the o-semiquinone radical and originate the released ·OH radical. It was further found that the oxidation of aldehyde groups significantly decreases reproductive toxicity and hepatotoxicity. These results indicate a novel detoxification pathway for gossypol and reveal the crucial role played by radical species in cyclization. This discovery could facilitate the development of safe, convenient, and low-cost industrial methods for the detoxification of cotton protein and oil resources. |
| ISSN | 22962646 |
| DOI | 10.3389/fchem.2020.583176 |
| Volume Number | 8 |
| Journal | Frontiers in Chemistry |
| Language | English |
| Publisher Date | 2020-12-01 |
| Access Restriction | Open |
| Subject Keyword | Laccase Catalyses intramolecular annulation Food Industry Cottonseed protein Gossypol |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry |
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