Anaerobic digestion is accomplished in three stages, solubilisation, acidogenesis and methanogenesis. Stage # 1. Solubilisation: It is the initial stage when feed stock is solubilized by water and enzyme. The feed stock is dissolved in water to make slurry. The complex polymers are hydrolysed into organic acids alcohols by hydrolytic fermentative methanogenic bacteria which are mostly anaerobes (Fig. 33.3A). Stage [...]
In this article we will discuss about the biodeterioration of various materials. 1. Biodeterioration of Stored Plant Food Material: The stored (unprocessed) plant material (fruits, seeds, etc.) are usually decayed due to post harvest attack of bacteria and fungi. This kind of spoilage is called biodeterioration. However, loss of plant materials before harvest is covered in plant pathology. The microbes [...]
In this article we will discuss about the microbial degradation of petroleum and xenobiotic. 1. Microbial Degradation of Petroleum (Hydrocarbon): Petroleum and its products are the hydrocarbons. It is a rich source of organic matter and is oxidised if comes in contact with air and moisture. There are some microorganisms which cleave the hydrocarbons into simpler molecules. Bioremediation is an [...]