IAS zone: chemicals

Sunday, March 25, 2012

a colorless, odorless, and sweet-tasting flaky powder that is hygroscopic
Glycerol monostearate, commonly known as GMS, is an organic molecule used as an emulsifier
It occurs naturally in the body as a by-product of the breakdown of fats, and is also found in fatty foods.
GMS is a food additive used as a thickening, emulsifying, anti-caking, and preservative agent

stabiliser is an additive to food which helps to preserve its structure.
For example it is used in preventing ice crystals from forming in frozen food such as ice cream; and preventing fruit from settling in products such as jam and yogurt.

Focusing On Preservatives: How They Keep Food Fresh
http://www.sciencedaily.com/releases/2002/11/021113070827.htm

What do preservatives do? They keep foods fresh and inhibit the growth of bacteria, yeasts or molds.
Preservatives can be grouped into three general types: antimicrobials that block growth of bacteria, molds or yeasts; antioxidants that slow oxidation of fats and lipids that leads to rancidity, and a third type that fights enzymes that promote the natural ripening that occurs after fruits or vegetables are picked.

Emulsifiers are molecules with one water-loving (hydrophilic) and one oil-loving (hydrophobic) end. They make it possible for water and oil to become finely dispersed in each other, creating a stable, homogenous, smooth emulsion.
Some common applications of emulsifiers
In bread emulsifier added to the dough is enough to achieve an enhanced volume, a softer crumb structure and a longer shelf-life
In Chocolate emulsifiers are added to provide the right consistency of the chocolate, so it can be moulded into plates of chocolate, chocolate bars etc.

Friday, April 8, 2011

there is not much to learn from this article

Sodium thiopental is used for executing prisoners in US

a. It is supplies by Kayem Pharmaceuticals company, mumbai