#Food_Preservatives are substances added to food to prevent or slow down spoilage and maintain natural colours and flavours. Two reasons for food spoilage • Microbial contamination • Fats reacting with oxygen (oxidation) Preservative criteria • Non-toxic • Functional • Flavourless • Economical Sorbic acid - It is a food preservative which protects many food varieties from yeast and mold spoilage. It is an organic compound, with naturally strong antimicrobial capabilities. Sodium benzoate - It is a food preservative commonly used in fruit pies, jams, beverages, salads, foods with acidic pH. It is used in processed foods to prevent the growth of bacteria or fungus that could spoil the food. Citric Acid - Its acidic pH makes it useful as a food preservative and preserves the color of the food since it significantly slows the oxidation. Monosodium glutamate (MSG) is not a food preservative. It is a food additive, which is used as a flavour enhancer commonly added to Chinese food, canned vegetables, soups and processed meats.

Coal Gasification is one of the clean coal technologies and involves the process of converting coal into synthesis gas/ syngas. • Syngas is a mixture of hydrogen (H2), carbon monoxide (CO) and carbon dioxide (CO2). • The by-products of coal gasification include coke, coal tar, sulfur, ammonia and fly ash, all having their own potential uses. • CO2 and ammonia are further reacted to produce urea. • Syngas can also be used in a variety of other applications such as in the production of electricity, fuel for IC engines, making plastics, cement etc

Environmental Impact Assessment or EIA is the process or study which ▪️predicts the effect of a proposed industrial/infrastructural project on the environment. ▪️prevents the proposed activity/project from being approved without proper oversight or taking adverse consequences into account. ▪️compares various alternatives for a project and seeks to identify the one which represents the best combination of economic and environmental costs and benefits.