Application Of Lipase in Fat And Oil Industry
Oct 20, 2022
Fats and oils are important components in food. The position of fatty acids in the main chain of glycerol, the chain length of fatty acids and the degree of unsaturation will affect the nutrition, sensory evaluation and physical properties of triglycerides. Lipases can modify the properties of lipids by changing the position of fatty acids or by replacing one (or more) of them, so that a relatively inexpensive lipid with low utilization value can be converted into a high-value fat.
Low-value fats can also be chemically converted into higher-value fats, but the transesterification of lipases processed in this way alters the properties of low-value fats, such as palm oil to make cocoa butter. Palm oil has a higher content of palmitate, its melting point is 23°C, and it is liquid at room temperature, while cocoa butter contains more stearate, and its melting point is 37°C. Cocoa butter melts in the mouth and will give people a refreshing and smooth feeling. a feeling of.
There are many other applications of lipase-catalyzed transesterification in organic solutions: simulating breast milk fat in infant formula, producing some important polyunsaturated fatty acids, low- or high-calorie lipids, and producing biodiesel from rapeseed oil. In addition lipase is also used in the production of corn oil, sunflower oil, peanut oil, olive oil and soybean oil.
The application of lipase in the fat and oil industry has the following advantages: the temperature required is not too high, on the one hand, it reduces the consumption of fossil fuels and thus reduces the cost; on the other hand, because of the low temperature, the thermal degradation of unsaturated fatty acids will also Reduce, so that pure natural fatty acids can be obtained without distillation, unsaturated fatty acids have high nutritional value, and polyunsaturated fatty acids can protect mono- and di-glycerides in the production process. The main ingredient, such oils can slow down the growth of triglycerides in the blood to control the accumulation of body fat and high cholesterol.
