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Bitter apricot kernel oil with high nutritive value and extraction method thereof

A technology of bitter almond oil and extraction method, which is applied in the direction of fat oil/fat production and fat generation, and can solve the problem of large loss of almond oil nutrition and biologically active substances, affecting the safety and stability of oily food, and low extraction rate of bitter almond oil and other issues, to achieve the effect of improving the utilization rate of raw materials, improving food safety, anti-oxidation ability and stability

Inactive Publication Date: 2016-01-20
杏林春晓承德生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the dry crushing has a large shear force and high temperature, resulting in a large loss of nutrients and biologically active substances in almond oil.
[0009] Chinese patent CN102796613B discloses a method of hydroenzymatically extracting soybean oil and microbial demulsification, which belongs to vegetable oil extraction technology. The method includes the following steps: (1) Extrusion and puffing are used to obtain puffed material after soybean crushing, and the puffed material is mixed with Mix with water to obtain a mixed solution, add alkaline protease to the mixed solution for enzymolysis, and centrifuge after enzymolysis to obtain free oil, emulsion, hydrolyzate and residue; Inorganic salt liquid medium is fermented to obtain mixed demulsifying bacteria full culture solution; (3) the emulsion obtained in step 1) is adjusted to neutral pH, fully mixed with mixed demulsifying bacteria full culture solution, and left to stand for constant temperature demulsification, Soybean oil is obtained by centrifugation after demulsification; although the demulsification rate is high, the oil after demulsification is centrifuged and mixed with demulsifiers and water, and the emulsion oil, demulsifiers and water cannot be completely separated, affecting Food Safety and Stability of Oils and Fats
The bitter almond oil extraction rate that above-mentioned method makes is lower

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Example 1 Preparation of raw materials

[0059] 1. Preparation of Chinese herbal medicine extract:

[0060] The preparation method of the Chinese herbal medicine extract includes the following steps: weighing 16 parts of licorice, 15 parts of astragalus, 14 parts of epimedium, 13 parts of dried ginger, 10 parts of Angelica dahurica, and 6 parts of Codonopsis pilosula in parts by weight; Wash in an ultrasonic cleaner with 0.2% sodium bicarbonate solution at 200W, 30KHz for 12 minutes, drain, pulverize the above Chinese herbal medicines to a particle size of 2mm or less, mix evenly in a container and add 5 times the weight of water to obtain a mixture. Control the temperature at 80°C for 3h, then lower the temperature to 45°C, adjust the pH to 4.0 with lactic acid, perform microwave extraction for 12 minutes at a power of 200W, and perform ultrasonic assisted extraction at a power of 250W and a frequency of 35KHz; then add the mixture to the total 1.0% by weight of the compou...

Embodiment 2

[0064] A method for extracting bitter almond oil with high nutritional value includes the following steps:

[0065] 1) Microwave irradiation to kill the enzyme: immerse the bitter almonds in a sodium bicarbonate solution with a concentration of 0.1% by mass at room temperature, rinse and drain, place in a container sealed and let stand for 3 hours, then peel, put the peeled bitter almonds in the microwave In the dryer, under the conditions of frequency 2450MHz, power 2000W, temperature 85°C, and material layer thickness 4cm, the enzyme was irradiated to inactivate the enzyme for 3 minutes, in which the microwave irradiation was 10s with an interval of 20s;

[0066] 2) Frozen crushing: The bitter almonds that have been irradiated by microwave to inactivate the enzyme are soaked in a 0.2% citric acid solution at room temperature for 3 hours, rinsed with water twice, drained, and frozen at -23°C with a layer thickness of 9cm for 4 hours , Crushed to a particle size of 0.3mm to obtain ...

Embodiment 3

[0078] A method for extracting bitter almond oil with high nutritional value includes the following steps:

[0079] 1) Microwave irradiation to kill the enzyme: immerse the bitter almonds in a sodium bicarbonate solution with a concentration of 0.05% by mass at room temperature, rinse and drain, place in a container sealed and let stand for 2 hours, then peel, put the peeled bitter almonds in the microwave In the dryer, under the conditions of frequency 2450MHz, power 1000W, temperature 80°C, and material layer thickness 3cm, the enzyme was irradiated with microwave for 2 minutes, and the microwave irradiation was 10s with an interval of 20s;

[0080] 2) Frozen crushing: the bitter almonds after the enzymes have been inactivated by microwave irradiation are soaked in a citric acid solution with a concentration of 0.1% by mass for 2 hours at room temperature, rinsed with water once, drained, and frozen at -20°C with a layer thickness of 8 cm for 3 hours , Crushed to a particle size ...

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Abstract

The invention discloses bitter apricot kernel oil with high nutritive value and an extraction method thereof. The bitter apricot kernel oil and the extraction method have the beneficial effects that bitter apricot kernels are taken as the raw materials, and the low temperature biological processing technology is adopted in the whole course, thus effectively avoiding losses of thermosensitive nutrients in the bitter apricot kernels, such as proteins, higher fatty acids and vitamins; free oil, emulsion, hydrolysate and apricot kernel residues are obtained after enzyme deactivation by microwave irradiation, freezing and breaking, enzymolysis and vacuum centrifuging; the emulsion undergoes vacuum centrifuging after undergoing biological demulsification to obtain free oil; the free oil is mixed to prepare the bitter apricot kernel oil with high oil extraction rate (93-97%), high nutrient and active substance content, strong food safety (the residual quantity of cyanides is below 0.08mg / kg) and long shelf life (5-6 years); the extraction method has the effects of increasing the variety, yield and added value of the byproducts after oil extraction while increasing the product quality and yield, further reducing the oil extraction cost, completely eradicating discharge of the three wastes and protecting the environment.

Description

Technical field [0001] The invention relates to the technical field of vegetable oil extraction, in particular to a bitter almond oil with high nutritional value and an extraction method thereof. Background technique [0002] Almonds are the seeds of apricot plants of the genus Prunus in the Rosaceae family. They are also called almond pits, apricots, wood leaves, bitter almonds, apricot plum kernels, sweet plums, etc. They are flat heart-shaped, yellow-brown to dark brown on the surface, thin seed coat, and seeds Milky white, rich in oil. In China, it is mainly distributed in Hebei, Liaoning, Northeast, North China and Gansu. Almonds are divided into sweet almonds and bitter almonds. Sweet almonds are sweet, contain no or only 0.1% amygdalin, and have a fat content of 45% to 67%. Bitter almonds have a bitter taste and contain 2% to 4% amygdalin. Almond oil is the essence of almonds. The content of oleic acid and linoleic acid in bitter almond oil is more than 90%, and the co...

Claims

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Application Information

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IPC IPC(8): C11B1/00C11B1/04
Inventor 邵素英
Owner 杏林春晓承德生物科技有限公司
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