Antibiotics as Carbon Source in Chemical Engineering
On the use of antibiotics as a carbon source in chemical industry

1. Introduction
The way of chemical industry is to seek innovation and change, and to find a different way from the source of materials. Today, antibiotics can be used as a carbon source in the chemical industry, which is a new direction. Antibiotics, in the past, were mostly used for antibacterial purposes in the world, but their chemical properties and carbon-containing properties are the choice for chemical industry to find carbon sources, and have the value of exploration.

Second, the characteristics of antibiotics as a carbon source
Antibiotics have different chemical structures and different compositions of carbon. They contain carbon chains and carbon rings, and have diverse functional groups. From the perspective of a certain type of antibiotic, the carbon frame is stable and can provide carbon-based support for the reaction in the chemical reaction environment. And some antibiotics, under specific conditions, can gradually release their carbon elements and participate in various chemical synthesis reactions, such as condensation and polymerization. This characteristic makes them different from conventional carbon sources and is a new choice for chemical raw materials.

III. Applications in chemical processes
(1) Synthesis of specific compounds
In organic synthesis processes, antibiotics are used as carbon sources, which can lead to the formation of compounds with special structures. For example, when preparing a new type of polymer, antibiotics are introduced as carbon sources, and their unique carbon structure is used to make the polymer molecular chain have special branches. This branch structure gives the polymer new properties, such as better flexibility or heat resistance. And synthesized by this method, the reaction conditions may be milder, no extreme temperature and pressure are required, energy is saved, and the economy of the process is improved.

(2) Microbial fermentation assists the microbial fermentation process of
chemical industry. Carbon sources are necessary for the growth and reproduction of microorganisms. Antibiotics are used as carbon sources, or can regulate microbial metabolic pathways. Some microorganisms can feed on antibiotic carbon sources, and produce high-value-added products during the fermentation process, such as special enzymes or organic acids. At the same time, antibiotic carbon sources may affect the ecology of microbial communities, optimize the fermentation environment, improve fermentation efficiency, and increase product purity.

IV. Challenges faced and responses
(1) Cost considerations
The acquisition of antibiotics is mostly for pharmaceutical purposes, and the cost is quite high. To be widely used as a carbon source in the chemical industry, cost reduction is the top priority. New production processes can be developed to improve the production efficiency of antibiotics and reduce unit costs. Or explore the recycling and reuse path of waste antibiotics, turn waste into treasure, not only solve environmental protection problems, but also obtain cheap carbon sources.

(2) Reaction control
The structure of antibiotics is complex, and in chemical reactions, the reaction path is difficult to control. Easy to produce side reactions, resulting in impure products. Therefore, it is necessary to study the reaction mechanism in depth, use catalytic technology, and precisely regulate the reaction direction. Develop new catalysts, dedicated to antibiotic carbon source reactions, improve the selectivity of the main reaction and reduce the generation of by-products.

5. Conclusion
Antibiotics are used as carbon sources in the chemical industry. Although there are many challenges ahead, their potential is huge. If we can break through the barriers of cost and reaction control, we will surely open up new paths for the chemical industry. By then, the sources of chemical raw materials will be wider, the product performance will be better, and it will have far-reaching significance for the development of the industry. In fact, the chemical industry should deeply explore the direction.