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Extraction method of cashew kernel oil

An extraction method and technology of cashew nuts, which are applied in the direction of fat oil/fat production and fat generation, can solve the problems that are not conducive to the utilization value of cashew nut oil, the extraction rate of cashew nut oil is low, and the price of cashew nut kernel is high, so as to improve the physical and chemical quality, The effect of increasing the dissolution rate and lowering the demulsification temperature

Active Publication Date: 2021-08-13
AGRI PRODS PROCESSING RES INST CHINESE ACAD OF TROPICAL AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Compared with other oils such as peanuts, the price of cashew nut kernels is relatively high, and the extraction rate of cashew kernel oil produced by traditional techniques is low, and the quality is not good, which is not conducive to improving the utilization value of cashew nut kernel oil

Method used

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  • Extraction method of cashew kernel oil
  • Extraction method of cashew kernel oil
  • Extraction method of cashew kernel oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A method for extracting cashew kernel oil, comprising the steps of:

[0027] (1) Pulverization: pulverize the dried nuts to 40 mesh;

[0028] (2) Refining: Mix the nuts crushed in step (1) with water according to a ratio of 1:2 to liquid, and place them in a colloid mill for refining, with a gap of 10 μm between the colloid mills.

[0029] (3) Homogenization: put the slurry after step (2) refining into a homogenizer for homogenization, and the homogenization pressure is 60Mpa;

[0030] (4) Enzyme inactivation: heat up the homogenized slurry in step (3) to 75°C within 10s and maintain it for 30s, then cool down to 55°C within 180s to achieve enzyme inactivation;

[0031] (5) Stirring and emulsification: put the slurry after step (4) inactivating the enzyme in a stirrer to stir the slurry quickly, the stirring temperature is 55°C, the stirring speed is 50rpm, and the stirring time is 0.5h.

[0032] (6) Centrifugal impurity removal: the slurry obtained in step (5) is pla...

Embodiment 2

[0036] A method for extracting cashew kernel oil, comprising the steps of:

[0037] (1) Pulverization: pulverize the dried nuts to 80 mesh;

[0038] (2) Refining: mix the crushed nuts and water in step (1) according to a ratio of 1:10 to liquid, place in a colloid mill for refining, and the gap between the colloid mills is 40 μm;

[0039] (3) homogeneous: put the slurry after step (2) refining into a homogenizer for homogenization, and the homogenization pressure is 150Mpa;

[0040] (4) Enzyme inactivation: heat up the homogenized slurry in step (3) to 110°C within 60s for 10s, then cool down to 65°C within 30s to achieve enzyme inactivation;

[0041] (5) Stirring and emulsification: place the slurry after step (4) inactivating the enzyme in a stirrer to quickly stir the slurry, the stirring temperature is 65°C, the stirring speed is 120rpm, and the stirring time is 3h;

[0042] (6) Centrifugal impurity removal: place the slurry obtained in step (5) in a centrifuge for 1 min...

Embodiment 3

[0046] A method for extracting cashew kernel oil, comprising the steps of:

[0047] (1) Pulverization: pulverize the dried nuts to 60 mesh;

[0048] (2) Refining: mix the crushed nuts and water in step (1) according to a material-to-liquid ratio of 1:6, place them in a colloid mill for refining, and the gap between the colloid mills is 20 μm;

[0049] (3) Homogenization: put the slurry after step (2) refining into a homogenizer for homogenization, with a homogenization pressure of 100Mpa;

[0050] (4) Enzyme inactivation: Warm up the homogenized slurry in step (3) to 95°C within 30s and maintain it for 100s, then cool down to 60°C within 100s to achieve enzyme inactivation;

[0051] (5) Stirring and emulsification: place the slurry after step (4) inactivating the enzyme in a stirrer to quickly stir the slurry, the stirring temperature is 60°C, 80rpm, and stir for 1.0h;

[0052] (6) Centrifugal impurity removal: the slurry obtained in step (5) is placed in a centrifuge for 5 ...

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Abstract

The invention discloses an extraction method of cashew kernel oil. The method comprises the process steps of crushing, pulping, homogenizing, enzyme deactivation, stirring and emulsifying, centrifugal impurity removal, vacuum demulsification, centrifugal separation and the like to realize the extraction of the cashew kernel oil. The extraction method provided by the invention overcomes the defect that the cashew kernel oil is easy to emulsify, greatly improves the dissolution rate of the oil, especially the content of unsaturated fatty acid is high, the cashew kernel oil with higher quality is obtained, and the method provided by the invention simplifies process control and has a better application prospect.

Description

technical field [0001] The invention relates to the technical field of oil processing, in particular to a method for extracting cashew kernel oil. Background technique [0002] Cashew nut (Anacardium occidentale L.) is an evergreen tree belonging to the Anacardiaceae cashew tree, an important tropical dry fruit and oil tree species, and its nut is one of the four famous nuts (walnut, almond and hazelnut) in the world, and is loved by people all over the world. It is mainly composed of four parts: cashew pear, cashew kernel, cashew shell and cashew skin. Cashew kernels are rich in nutrients, including 45-48% fat, 19-22% protein, 4.6-11.2% starch, and 2.4-8.7% sugar. Cashew nuts are rich in fatty acids, accounting for 47% of the weight of cashew nuts, and the main components are unsaturated fatty acids. The linoleic acid and linolenic acid in them can prevent arteriosclerosis, stroke and other diseases, which are extremely beneficial to human health. favorable. [0003] Tra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04C11B1/10
CPCC11B1/04C11B1/10C11B1/108
Inventor 刘义军林丽静陈民李积华
Owner AGRI PRODS PROCESSING RES INST CHINESE ACAD OF TROPICAL AGRI SCI
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