Q1. Which oil is best for health? Ans1. Every oil is different in properties and is used for their different taste. Refined oils are light in nature whereas Mustard oil is pungent and healthy in nature. According to recent study by Harvard School of medicine, AIIMS, Delhi and St. John Hospital, Bangalore found that chances of heart disease dropped by nearly 70% on use of Mustard oil as a cooking medium. Three decades back, oil was not refined and generally mustard oil was consumed by most households. That time heart diseases were less compared to every growing heart ailments now. Mustard oil is regarded as one of the healthiest cooking oils.
Q2. What is the importance of fat in the diet? Ans2. Fats and oils provide essential nutrients in human diet. They provide the most concentrated source of energy of any foodstuff, supply essential fatty acids, contribute greatly to the feeling of satiety after eating, are carriers for fat soluble vitamins, and serve to make foods more palatable. The principal sources of fat in the diet are meats, dairy products, poultry, fish, nuts, and vegetable fats and oils. Most vegetables and fruits consumed as such contain only small amounts of fat.
Q3. What is hydrogenation and why is it used by food industry? Ans3. Hydrogenation is the process by which hydrogen is added directly to points of unsaturation in the fatty acids. Hydrogenation of fats has developed as a result of the need to (1) convert liquid oils to the semi-solid form for greater utility in certain food uses and (2) increase the oxidative and thermal stability of the fat or oil. Hydrogenation is an extremely important process as far as our food supply is concerned, because this processing imparts the desired stability and other properties to many edible oil products. Vanaspati Ghee is made by hydrogenating edible oil
Q4. Comparison of Fatty acids in different edible oils. Ans4. Table below shows Mustard oil as a clear winner amongst edible oils