Mycotoxin contamination of feed and its raw materials is a global problem. According to the Food and Agriculture Organization of the United Nations, about 25% of the world's cereals are contaminated with mycotoxins to varying degrees. In China, nearly 20% of the feed is contaminated with mycotoxins, especially in the south of the Yangtze River. The summer is hot and humid, and the mildew of feed is very common. It has become a problem that cannot be ignored in the feed industry and animal husbandry.
The antifungal and antibacterial treatment of the feed by adding an antibacterial agent is one of the effective ways to fundamentally solve the harm of mycotoxins. At present, the anti-mold and antibacterial materials commonly used in the market mainly include organic antibacterial agents such as propionate, benzoic acid and its salts, sorbic acid and its salts, fumaric acid and its esters, which can effectively inhibit the production and reproduction of harmful bacteria and molds. The speed is fast, but such antibacterial agents have poor thermal stability, poor durability, and are generally highly toxic.
Nano-antibacterial materials are nano-scale antibacterial agents that have been made into antibacterial agents through certain methods and techniques after the emergence of nanotechnology. They are a new class of materials with antibacterial properties. Due to its special effects such as high specific surface area and high reactivity of nanomaterials, it overcomes the defects of traditional organic antibacterial products, has high heat resistance, long antibacterial aging, good chemical stability, and high safety to human body. . In recent years, research on preparation technology and performance testing of nano-antibacterial materials has achieved rapid development. The types of nano-antibacterial materials are becoming more and more abundant, and have been widely used in many fields such as building materials, ceramic sanitary ware, textiles, and daily-use plastics.
How to develop and develop green and environmentally-friendly nano-antibacterial materials with good anti-mildew performance and safety and reliability, and can be applied to the feed industry on a large scale, which will become a hot spot for research and development of nano-antibacterial materials in the future. Future research and development of anti-mold agents should be developed in the direction of high quality, high efficiency and low cost, from single type to compound type. The application of nano antibacterial agents in the anti-mildew and antiseptic of feed has the following tendency: the nutritional components of a pair of feeds such as vitamins and trace elements have no adverse effects; the second is non-toxic, good palatability, and has certain growth and development for animals. Promote the role; Third, there is a certain detoxification effect on the mycotoxin produced in the feed.
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