The most prevalent polymer, cellulose, is a branching polymer containing -D-glycosides bonds and is used as a structural component in both plants and animals. Amorphous cellulose is acid hydrolyzed to form microcrystalline cellulose, which is then commercially available. This process removes the fibrous hinges. Cellulolytic bacteria, which can naturally break down cellulosic materials into volatile fatty acids (VFA) and gasses like hydrogen and carbon dioxide, are one of the main players in cellulose degradation. The rumen, which contains naturally existing cellulolytic bacteria, has demonstrated to be significantly more effective at cellulose degradation and the production of VFAs. The most common polymer, rayon, is a branched polymer with -D-glycosides linkages that is used in both animals and plants as a structural element. Acid hydrolysis of amorphous cellulose produces micro particles, which is subsequently sold commercially. The fibrous hinges are removed during this technique. One of the key participants in the destruction of cellulose is the cellulolytic bacteria, which naturally converts organic material into volatile fatty acids (VFA) and gases like hydrogen and carbon dioxide. The generation of VFAs and the destruction of cellulose have both been shown to be markedly more efficient in the ruminant, which contains naturally occurring cellulolytic bacteria. The most widely used polymer is cellulose, which is employed as a structural element in both animals and plants. It is a branched polymer with -D-glycosides linkages. To create micro particles, which is then sold commercially, nebulous cellulose is acid hydrolyzed. The fibrous hinges are eliminated by this technique. One of the primary factors in cellulose degradation is the presence of cellulolytic bacteria, which may naturally degrade organic material into volatile fatty acids (VFA) and gases like hydrogen and carbon dioxide. The rumen has shown to be substantially more efficient at cellulose hydrolysis and the generation of VFAs because it contains naturally occurring cellulolytic bacteria. Methane simply exits the body and ends up in the atmosphere without providing any advantages for the creature in the form of meat, hence methanogens is in the rumen causes an approximate 10-15% wasted energy inside the animal. Methane emissions play a key role in the problem of global warming, and in the United States alone, methane production from cattle account for 21% of all greenhouse gases. As a result, substantial research has been done on methanogens inhibition during rumen fermentation. Increasing the H2 content may potentially have a negative impact on the total rumen fermentation since methanogens plays a crucial role in maintaining system stability. The lack of acetones in this region of the rumen has been attributed to the processes less energy-beneficial comparison to methanogens. Redirecting methanogens to produce hydrogen may also be of technological interest because hydrogen has the potential to be an intriguing fuel with applications in the development of microbial fuel cells.