Bitter apricot kernel oil with low cyanide residual quantity and extraction method thereof
A technology of bitter almond oil and extraction method, which is applied in the directions of fat oil/fat production, fat oil/fat refining, preservation of fat substances by using additives, etc. It can improve the utilization rate of raw materials, improve food safety, and have strong antioxidant capacity and stability.
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Embodiment 1
[0058] Embodiment 1 raw material preparation
[0059] 1. Preparation of Chinese herbal medicine extract:
[0060] The preparation method of the Chinese herbal medicine extract comprises the following steps: in parts by weight, weigh 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; Clean 12min at 200W, 30KHz in an ultrasonic cleaning machine with 0.2% sodium bicarbonate solution, drain, grind the above-mentioned Chinese herbal medicine to a particle size below 2mm, put it in a container for uniform mixing and add 5 times the weight of water to obtain a mixed material, Control the temperature at 80°C for 3 hours, then lower the temperature to 45°C, adjust the pH value to 4.0 with lactic acid, carry out microwave extraction for 12 minutes under the condition of power 200W, and carry out ultrasonic-assisted extraction under the condition of power 250W and frequency 35KHz; 1.0% ...
Embodiment 2
[0064] A method for extracting bitter almond oil with low residual cyanide content, comprising the steps of:
[0065] 1) Enzyme inactivation by microwave irradiation: immerse the bitter almonds in a sodium bicarbonate solution with a concentration of 0.1% by mass, rinse at room temperature, drain, put in a container, seal and let stand for moistening for 3 hours, then peel the peeled bitter almonds, put the peeled bitter almonds into the microwave In the drying machine, the frequency is 2450MHz, the power is 2000W, the temperature is 85°C, and the thickness of the material layer is 4cm. The enzyme is irradiated for 3 minutes, and the microwave irradiation is 10s, and the interval is 20s;
[0066] 2) Freezing and crushing: soak bitter almonds after microwave irradiation to inactivate enzymes in 0.2% citric acid solution at room temperature for 1.5 hours, rinse with water twice, drain, and freeze at -23°C with a material layer thickness of 9cm 2h, crushed to a particle size of 0...
Embodiment 3
[0078] A method for extracting bitter almond oil with low residual cyanide content, comprising the steps of:
[0079] 1) Enzyme inactivation by microwave irradiation: immerse bitter almonds in a sodium bicarbonate solution with a concentration of 0.05% by mass, rinse at room temperature, drain, put in a container, seal and let stand for moistening for 2 hours, then peel the peeled bitter almonds, put the peeled bitter almonds into the microwave In the drying machine, the frequency is 2450MHz, the power is 1000W, the temperature is 80°C, and the thickness of the material layer is 3cm, microwave irradiation is used to inactivate the enzyme for 2 minutes, and the microwave irradiation is 10s, and the interval is 20s;
[0080] 2) Freezing and crushing: the bitter almonds after microwave irradiation to inactivate enzymes are soaked in 0.1% citric acid solution at room temperature for 1 hour, rinsed with water once, drained, and frozen at -20°C with a material layer thickness of 8 cm...
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