Method for preparing dehulled sesame oil through cooperation of freezing and microwave unfreezing and aqueous enzymatic method

Abstract

The invention discloses a method for preparing dehulled sesame oil through cooperation of freezing and microwave unfreezing and an aqueous enzymatic method. Dehulled sesame is preprocessed by adoptingthe preprocessing modes of freezing, microwaves, and unfreezing and the like, the granularity of oil can be reduced so that its cell walls can be effectively broken, and the effect of improving the oil yield can be achieved. compared with an ultrasonic assistance method, an extruded expansion method and other methods of the prior art, the used preprocessing method can utilize frozen ice crystalsto break oil-water layering and achieve the effect of oil drop gathering, microwave unfreezing utilizes the effect of an electromagnetic field to make the viscosity of lactescence decreased, oil dropsare gathered towards the electromagnetic field, and breaking of emulsion is easier to achieve. By adopting the preprocessed material and the aqueous enzymatic method, an oil ingredient is easier to extract, the sesame oil yield is further improved through repeated three times of processing, the cost is also reduced, the process operation facilitates industrial production, the energy consumption is low, and the quality of oil products is safe.

Description

technical field [0001] The invention relates to the technical field of sesame oil, in particular to a method for preparing peeled sesame oil by freezing microwave thawing in cooperation with an aqueous enzymatic method. Background technique [0002] my country is one of the major planting and producing countries of sesame, its output ranks first in the world, and occupies a very important position in people's daily life. Sesame is known as the "Queen" of oil crops. It is a large variety of oil crops among small varieties of oil crops. It has extremely high nutritional value, health care function and medicinal value. Sesame oil is one of the three best edible oils announced by WHO. It not only has high nutritional value, but also has medicinal value. It has been included in the pharmacopoeia of China, the United States, Japan and other countries, so it is called "the king of oils". . Sesame oil is rich in oleic acid (36.9%-50.5%) and linoleic acid (36.9%-49.1%), which are v...

AI Technical Summary

Problems solved by technology

However, the water substitution method has the disadvantages of high labor intensity, low oil yield, and small production scale. The crude oil obtained by the leaching method needs to be refined, and the nutrients and antioxidant components of the oil are prone to loss during the refining process. Sesame oil has a strong fragrance, but it also produces a certain amount of low-molecular compounds and common toxic substances that are harmful to human health, such as: aldehydes and ketones, benzopyrene and pigments, etc., and during the high-temperature pressing process, the protein in sesame will produce Denatured and inactivated, the nutritional value is greatly reduced

Low-temperature pressing is an emerging sesame oil production process, which reduces the loss of protein and nutrients in sesame, but still has the problems of low oil yield, inability to sterilize, poor oxidation stability of oil and short shelf life