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草业学报 ›› 2026, Vol. 35 ›› Issue (7): 228-239.DOI: 10.11686/cyxb2025257

• 综合评述 • 上一篇    

漆酶在棉副产品饲料开发中的研究进展

龙德智(), 刘增照, 周斐然()   

  1. 哈密市畜牧工作站,新疆 哈密 839000
  • 收稿日期:2025-06-26 修回日期:2025-10-23 出版日期:2026-07-20 发布日期:2026-05-21
  • 通讯作者: 周斐然
  • 作者简介:Corresponding author. E-mail: 710298044@qq.com
    龙德智(1996-),男,广西陆川人,硕士。E-mail: 13040543675@163.com
  • 基金资助:
    甜高粱与棉花秸秆混贮的开发利用对肉牛生产性能的影响(2024XNRC008)

Progress in research on the use of laccase to produce feed from cotton by-products

De-zhi LONG(), Zeng-zhao LIU, Fei-ran ZHOU()   

  1. Animal Husbandry Station of Hami City,Hami 839000,China
  • Received:2025-06-26 Revised:2025-10-23 Online:2026-07-20 Published:2026-05-21
  • Contact: Fei-ran ZHOU

摘要:

中国作为棉花生产与消费大国,每年产生大量棉副产品,但其含有的游离棉酚等抗营养因子严重限制了其在饲料中的高值化应用。传统物理化学脱毒方法存在成本高、效率低及潜在污染等问题。漆酶作为一种多铜氧化酶,凭借其广谱底物特异性和高效氧化能力,能够通过催化棉酚分子内环化反应,将毒性醛基转化为稳定的呋喃结构,实现棉酚的绿色降解。系统综述了棉酚的化学特性及其对动物肝毒性、生殖毒性与氧化应激的影响,深入解析了漆酶的三维结构、铜簇催化机制及介体辅助氧化途径,总结了pH、温度、酶浓度等关键因素对降解效率的调控规律。结果发现,漆酶处理可显著缓解棉酚引起的肝损伤与生殖功能障碍,恢复抗氧化酶活性。此外,通过天然菌株筛选、基因工程改造及极端环境微生物开发,漆酶的生产效率与稳定性持续提升,其在棉粕脱毒中的应用案例已验证其工业化潜力。未来,漆酶技术有望推动棉副产品资源化利用,降低饲料成本,并衍生高附加值产物,为实现棉产业可持续发展提供关键技术支撑。

关键词: 棉酚, 漆酶, 脱毒, 棉副产品, 饲料

Abstract:

China is a large producer and consumer of cotton and produces vast amounts of cotton by-products every year. However, anti-nutritional factors such as free gossypol seriously limit the use of cotton by-products as high-value feed. The problems with traditional physico-chemical detoxification methods include high cost, low efficiency, and potential pollution. Laccase, a polycopper oxidase with broad substrate specificity and strong oxidation activity, catalyzes the intramolecular cyclization of gossypol to convert toxic aldehyde groups into stable furan structures, thus achieving green degradation of gossypol. In this paper, the chemical properties of gossypol and its effects on liver toxicity, reproductive toxicity, and oxidative stress in animals are systematically reviewed. The three-dimensional structure of laccase, its copper cluster catalytic mechanism, and its mediator-assisted oxidation pathway are described. The regulatory effects of key factors such as pH, temperature, and enzyme concentration on degradation efficiency are summarized. Recent research has shown that laccase treatment can significantly alleviate liver injury and reproductive dysfunction induced by gossypol, and restore antioxidant enzyme activity. In addition, through natural strain screening, genetic engineering modification, and extreme environment microorganism development, the production efficiency and stability of laccase have been continuously improved, and its application in cottonseed meal detoxification has verified its industrialization potential. In the future, laccase technology is expected to promote the utilization of cotton by-products, reduce feed costs, and produce high value-added products, providing key technical support for the sustainable development of the cotton industry.

Key words: gossypol, laccase, detoxification, cotton by-products, feed