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Production process for walnut oil

A production process, walnut oil technology, applied in the direction of fat oil/fat production, fat production, etc., can solve the problems of walnut oil aroma reduction, low oil yield, easy oxidation, etc., to achieve improved oil yield, pure fragrance, and oil color clear effect

Active Publication Date: 2014-12-24
龙陵县碧寨金戈土特产品加工厂 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Walnut oil is an ideal high-grade edible cooking oil in people's daily life. The existing processing technology has the following deficiencies: (1) Pressing with a traditional hydraulic oil press, which has a low oil yield; (2) Pressing with a screw press, The disadvantage of this method is that walnut shells or other materials must be added to the walnut kernels, which affects the quality of the oil; (3) the water substitution method, the process temperature is high, which is not good for the nutrient retention of the oil; (4) butane and other organic Solvent extraction, this method has the disadvantage of solvent residue, and at the same time, because the content of unsaturated fatty acids in walnut oil is very high, it is relatively easy to oxidize; (5) Cold pressing and cold refining method, the fragrance of walnut oil will be greatly reduced by this method , its labor intensity is high, the efficiency is low, and it is impossible to realize industrialized production

Method used

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Examples

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Embodiment Construction

[0029] Purchase a walnut cutting machine, a complete set of integrated equipment for deacidification, degumming and deodorization. The name of the equipment is 3T / D advanced cooking oil refining unit, canning machine, packaging machine, refrigerator, oil storage tank, transformer, power distribution Cabinets, belt conveyors, firefighting equipment, transport vehicles and other equipment, follow the steps below:

[0030] 1. Acceptance of dried walnuts and walnut kernels: ① Acceptance of dried walnuts: According to the national standard GB / T 20398 "Quality Grades of Walnut Nuts", the specific requirements are that the nuts are fully mature, the shell surface is clean, the sutures are tight, and there are no exposed kernels, oil, Mildew, odor. Free of impurities and not treated with harmful chemical bleaches. The shell is naturally yellowish white or yellowish brown. Seed kernels are plump, yellowish white or light amber in color, slightly astringent. Moisture content ≤ 8.0%. ...

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Abstract

The invention discloses a production process for walnut oil. The process comprises the following steps: acceptance inspection of dried walnut fruit; cutting to take a walnut kernel; screening; squeezing; filtering; depickling; degumming; deodorization; decoloring; inspection and packaging. The walnut oil prepared in the invention has good quality, pure fragrance and a clear oil color; the production process enables oil yield to be substantially improved and walnut oil with high quality according with national inspection standards in China to be produced.

Description

technical field [0001] The invention relates to the technical field of oils, in particular to a walnut oil production process. Background technique [0002] Walnut oil is an ideal high-grade edible cooking oil in people's daily life. The existing processing technology has the following deficiencies: (1) Pressing with a traditional hydraulic oil press, which has a low oil yield; (2) Pressing with a screw press, The disadvantage of this method is that walnut shells or other materials must be added to the walnut kernels, which affects the quality of the oil; (3) the water substitution method, the process temperature is high, which is not good for the nutrient retention of the oil; (4) butane and other organic Solvent extraction, this method has the disadvantage of solvent residue, and at the same time, because the content of unsaturated fatty acids in walnut oil is very high, it is relatively easy to oxidize; (5) Cold pressing and cold refining method, the fragrance of walnut ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C11B1/08
Inventor 宝金安宝龙杰
Owner 龙陵县碧寨金戈土特产品加工厂
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