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Production method of walnut oil and produced walnut oil

A production method and technology of walnut oil, which is applied in the direction of fat oil/fat production, fat oil/fat refining, fat production, etc., can solve the problems of easy oxidation, stinky smell, increased pressing workload, etc., and achieve low production cost and good taste , easy-to-operate effect

Inactive Publication Date: 2017-09-19
温州市香格里拉食品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing iron walnuts also have the prior art of directly pressing without separating the shell and kernel, but there are many problems. The hard walnut shell not only forms a huge pressure on the walnut crushing equipment, but also the excessive walnut shell is crushed and mixed with Mixing in the walnut kernels to be oiled not only increases the workload of pressing, but also makes the oil residue contain more oil that is difficult to squeeze out, and it also has a hala smell, which is easy to oxidize

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] In the embodiment of the present invention, a kind of production method of walnut oil comprises the following steps:

[0022] 1) Select the wild iron walnuts that were born in the current year, remove the rotten wild iron walnuts, clean the surface, and sterilize; dry and cool, break the shells with a crusher, and separate the shells and kernels; put the walnut kernels in lye to peel for 8 minutes, Take it out and rinse it with clean water, dry it until the water content is ≤3%, and the drying temperature is ≤50°C; grind the walnut kernels, put them into a hydraulic press, and separate the solid and liquid to obtain crude oil and oil residue;

[0023] 2) The crude oil is hydrated → deacidified → washed → decolorized → filtered → deodorized → filtered → refined walnut oil;

[0024] Among them, hydration: put the crude oil in the hydration pot and adjust the oil temperature to 38°C, under rapid stirring, slowly add food-grade phosphoric acid accounting for 0.1% of the mas...

Embodiment 2

[0028] In the embodiment of the present invention, a kind of production method of walnut oil comprises the following steps:

[0029] 1) Select the wild iron walnuts that were born in the current year, remove the rotten wild iron walnuts, clean the surface, and sterilize; dry and cool, break the shells with a crusher, and separate the shells and kernels; put the walnut kernels in lye to peel them for 30 minutes, Take it out and rinse it with clean water, dry it until the water content is ≤3%, and the drying temperature is ≤50°C; grind the walnut kernels, put them into a hydraulic press, and separate the solid and liquid to obtain crude oil and oil residue;

[0030] 2) The crude oil is hydrated → deacidified → washed → decolorized → filtered → deodorized → filtered → refined walnut oil;

[0031] Among them, hydration: put the crude oil into the hydration pot and adjust the oil temperature to 42°C, under rapid stirring, slowly add food-grade phosphoric acid accounting for 0.5% of...

Embodiment 3

[0035] In the embodiment of the present invention, a kind of production method of walnut oil comprises the following steps:

[0036] 1) Select the wild iron walnuts that were born in the current year, remove the rotten wild iron walnuts, clean the surface, and sterilize; dry and cool, break the shells with a crusher, and separate the shells and kernels; put the walnut kernels in lye for 10 minutes, Take it out and rinse it with clean water, dry it until the water content is ≤3%, and the drying temperature is ≤50°C; grind the walnut kernels, put them into a hydraulic press, and separate the solid and liquid to obtain crude oil and oil residue;

[0037] 2) The crude oil is hydrated → deacidified → washed → decolorized → filtered → deodorized → filtered → refined walnut oil;

[0038] Among them, hydration: put the crude oil in the hydration pot and adjust the oil temperature to 39°C, under rapid stirring, slowly add food-grade phosphoric acid accounting for 0.2% of the mass of cr...

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Abstract

The invention discloses a production method of walnut oil and the produced walnut oil. Annual wild Juglans sigillata Dode is selected, rotten wild Juglans sigillata Dode is removed, and the surface of the wild Juglans sigillata Dode is cleaned and sterilized; the wild Juglans sigillata Dode is dried, cooled and broken by a breaker, and hull and walnut kernels are separated; the walnut kernels are placed in an alkaline liquid and peeled for 8-30 min, fished out, cleaned with clear water and dried at the temperature lower than or equal to 50 DEG C until the water content is smaller than or equal to 3%; the walnut kernels are smashed and fed into a hydraulic presser, and crude oil and oil dreg are obtained through solid-liquid separation; the crude oil is subjected to hydration, deacidification, washing, discoloration, filtration, deodorization and filtration, and the finished product, namely, refined walnut oil, is obtained. The acidity of the produced walnut oil is smaller than or equal to 0.5, the wild walnut oil tastes good, pure original fruit aroma of the wild walnut oil is kept, no rancidity is produced, freshness is kept, saturated fatty acid, linolenic acid and linoleic acid are increased, the walnut oil is difficult to oxidize, nutrition is locked and the like. The preparation process is simple, easy to operate, low in production cost, high in oil yield and suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of edible oil production, in particular to a production method of walnut oil and the prepared walnut oil. Background technique [0002] The oil content in walnut kernels is higher than 60%, and walnut oil is rich in unsaturated fatty acids (oleic acid, linoleic acid and linolenic acid account for more than 90% of the total), especially the content of linolenic acid is significantly higher than other common vegetable oils . In addition, walnut oil also contains a variety of vitamins, mineral elements and physiologically active substances that are beneficial to the human body, such as vitamin E, iron and flavonoids. Therefore walnut oil is a kind of high-grade and precious nutrition and health care oil, which is favored by consumers in the international market. [0003] There are many problems in the existing iron walnut oil preparation technology, especially for the hundred-year-old wild iron walnut, there ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04C11B1/06C11B3/00
CPCC11B1/04C11B1/06C11B3/001
Inventor 陈强龙
Owner 温州市香格里拉食品有限公司
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