rancidity Fig . : Ways to preventive measures Fig . : Margarine "Hydrolysis" is the decomposition of fats into free fatty acid and glycerol by enzymes in the presence of moisture. These free fatty acids released are responsible for the unpleasant flavour and odour.
During "oxidation" oxygen is added to the unsaturated linkage and this result in the formation of peroxides. These peroxides - - Nuts oil seeds and Sugar . Sugar, jaggery and honey Sugar, jaggery and honey are sweetening agents. They are added to beverages and foods to increase palatability.
Sugar is made up of glucose and fructose. It is a source of energy providing kilocalories per gram. Sugar provides only empty calories. Jaggery is made from sugar cane juice after processing it.
Jaggery is a fair source of iron. Palmyra palm, date palm or coconut palm is used to make jaggery. Honey is the golden coloured syrup made by bees from the nectar of flowers. It is a mixture of glucose and fructose.
. . Sugar Sugars are carbohydrates from the sugarcane plant and sugar beets. It is also present naturally in fruits, vegetables and dairy.
Our body uses sugar to give energy to our cells by breaking it down to glucose. . . Types of sugar Regular or white granulated sugar: It is the most common sugar called for in recipes when cooking and baking.
Confectioneries or powdered sugar: Powdered sugar is simple granulated sugar ground to a smooth powder and then sifted. Commercially available powdered sugar is mixed with a small amount of corn starch ( %) to prevent caking. It is often used in icings, confectionaries and whipping cream. Castor sugar (Super fine sugar): This sugar has the smallest crystal size of white granulated sugars.
It is generally used in making delicate or smooth desserts such as puddings. Because the crystals are so fine, they dissolve easily, even in cold drinks. decompose to yield aldehyde and ketones which are responsible for the pronounced flavour. Rancidity may also be caused by the absorption of odour and action of micro organism and enzymes.
Preventive Measures : .