<p>Dried biomass of microbes, better known as SCP can be served as alternative</p><p>protein&nbsp;to&nbsp;human&nbsp;beings&nbsp;and&nbsp;can&nbsp;also&nbsp;be&nbsp;supplied&nbsp;to&nbsp;animals.&nbsp;In&nbsp;addition&nbsp;to&nbsp;</p><p>approximately&nbsp;60-&nbsp;82%&nbsp;protein&nbsp;content,&nbsp;SCP&nbsp;biomass&nbsp;also&nbsp;comprise&nbsp;of&nbsp;vitamins, fats,&nbsp;&nbsp;</p><p>minerals&nbsp;and&nbsp;carbohydrate.&nbsp;Most&nbsp;microbes&nbsp;and&nbsp;algae&nbsp;have&nbsp;about&nbsp;1/3&nbsp;of&nbsp;their biomass&nbsp;as&nbsp;&nbsp;</p><p>protein.&nbsp;These&nbsp;microbes&nbsp;can&nbsp;be&nbsp;easily&nbsp;cultivated&nbsp;on&nbsp;a&nbsp;large&nbsp;scale&nbsp;to harvest&nbsp;protein.&nbsp;&nbsp;</p><p>Single-cell&nbsp;proteins&nbsp;can&nbsp;be&nbsp;simply&nbsp;defined&nbsp;as&nbsp;proteins&nbsp;found&nbsp;in microbes that are used for&nbsp;</p><p>protein supplementation. Multicellular molds and algae are&nbsp;also&nbsp;used&nbsp;to&nbsp;harvest&nbsp;protein.&nbsp;The&nbsp;&nbsp;</p><p>most&nbsp;popular&nbsp;use&nbsp;of&nbsp;SCP&nbsp;yeast&nbsp;was&nbsp;during World&nbsp;War&nbsp;II,&nbsp;when&nbsp;food&nbsp;shortages&nbsp;plagued&nbsp;&nbsp;</p><p>Germany.&nbsp;The&nbsp;emphasis&nbsp;on&nbsp;the&nbsp;Post World War on the continuation of SCP production has been&nbsp;</p><p>encouraged to combat the&nbsp;problems&nbsp;of&nbsp;hunger&nbsp;and&nbsp;malnutrition&nbsp;.&nbsp;</p><p>&nbsp;Microbes have since been widely used to supplement food.</p><p><br></p><p>The&nbsp;benefits&nbsp;of&nbsp;single&nbsp;cell&nbsp;protein&nbsp;include&nbsp;less&nbsp;water,&nbsp;less&nbsp;land&nbsp;use,&nbsp;less</p><p>biological&nbsp;threats&nbsp;and&nbsp;more&nbsp;environment&nbsp;friendly.&nbsp;One&nbsp;maJor&nbsp;benefit&nbsp;with&nbsp;this biomass&nbsp;is&nbsp;</p><p>&nbsp;that&nbsp;amino&nbsp;acids&nbsp;particularly&nbsp;lysine&nbsp;and&nbsp;methionine&nbsp;are&nbsp;in&nbsp;abundance. Additionally,&nbsp;</p><p>economical wastes can be utilized as substrate by microorganisms to produce protein and amino acid&nbsp;</p><p>rich biomass. Besides fruit, vegetable and molasses wastes,&nbsp;petroleum&nbsp;by-&nbsp;product,&nbsp;ethanol,&nbsp;&nbsp;</p><p>methanol,&nbsp;natural&nbsp;gas&nbsp;and&nbsp;lignocelluloses have been used as common substrates .</p><p><br></p><p>Significant&nbsp;advances&nbsp;in&nbsp;SCP&nbsp;methods&nbsp;worldwide&nbsp;had&nbsp;a&nbsp;profound&nbsp;effect&nbsp;on the development of&nbsp;</p><p>modern biotechnology. With the help of various fields including microbiology,&nbsp;&nbsp;biochemistry,&nbsp;&nbsp;</p><p>genetics,&nbsp;&nbsp;chemical&nbsp;&nbsp;and&nbsp;&nbsp;process&nbsp;&nbsp;engineering,&nbsp;&nbsp;food technology, ecology, agriculture,&nbsp;</p><p>medicine, animal nutrition, toxicology, veterinary technology&nbsp;and&nbsp;economics&nbsp;there&nbsp;have&nbsp;been&nbsp;&nbsp;</p><p>huge&nbsp;benefits&nbsp;in&nbsp;research&nbsp;and&nbsp;SCP production process. For treatment of wastewater, alcohol&nbsp;</p><p>manufacture, food science and enzyme technology SCP can act as innovative solution.</p><p><br></p>