earticle

영어

A manufacturing process use raw materials through appropriate processing, and end up with final products of our needs. Mechanical and electronics industries use many parts that can be assembled into final products such as automobiles and televisions, etc. Chemical and biotech industries use chemicals and biochemical to make their own products from raw materials such as coals, oils, natural gases; starch bearing plants, sugar canes, and their derivative products. Biotech industries needs raw materials (mainly biological but some chemical) to produce products of their needs from small molecules (MW less than 100) to very large molecules such as proteins, macromolecules (PHBs, PHAs) and even stem cells for tissue engineering for regenerative medicine. Biotech products are very diverse these days. Here I like to focus on two products of bioethanol and biodiesels by chemical catalysts, and fermentation using unconventional raw materials (low cost waste organics); unconventional fermentation technologies of mixed culture; unconventional bioreactor technologies (multi-stage continuous high cell density culture: MSC-HCDC) and downstream processing of water removing technologies. In this way perhaps we can make microbial diesel, currently known as uneconomical, economical.