Preparation method of walnut oil

A technology of walnut oil and walnut kernels, which is applied in the field of walnut oil production, can solve the problems of high energy consumption, low degree of automation, and loss of nutritional components in the production of walnut oil, so as to promote equipment automation, improve the degree of automation, and improve nutritional indicators. Enhanced effect

Pending Publication Date: 2018-07-24
HUBEI WULONGHE FOOD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods generally have problems such as high energy consumption, low degree of automation, loss of nutrients, and environmental pollution in the preparation of walnut oil.

Method used

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  • Preparation method of walnut oil
  • Preparation method of walnut oil
  • Preparation method of walnut oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0062] Take the daily production of 1270 kg of walnut kernels as an example (8 hours of work), combined with Figure 4 , further describe the present invention as follows:

[0063] 1. Raw material preparation

[0064] ⑴Walnut kernels are 1270 kg, and the raw materials are checked and accepted by color sorting machine. Select the walnut kernels produced in the current year to meet the requirements of no impurities, moths, mildew, and yellowing. The diameter is 0.2-0.3 cm, and the color is light yellow or light amber;

[0065] (2) Cake cloth: choose 3027# food-grade non-woven fabric, cut into 1m*1m size, sterilize in boiling water, dry in the sun for later use, 40 sheets are needed on duty, and can be reused;

[0066] 2. Mechanical equipment preparation

[0067] ⑴Walnut electric temperature-controlled frying pan: equipped with frying time, frying temperature, and self-unloading control device at the discharge port;

[0068] ⑵Coupling machine: computer operation interface, eq...

Embodiment 2

[0092] In embodiment 1 according to the present invention, utilize spherical steaming rack type walnut kernel steamer to carry out steaming, concrete steps are as follows:

[0093] ① Clean the material steamer and put the designed amount of drinking water into the pot. The ideal amount of water is calculated based on the normal temperature of 25°C. When the water temperature is lower than 25°C, the amount of water will be reduced. Increase;

[0094] ② A spherical steaming rack device is placed on the steamer, wherein the spherical steaming rack device has a hemispherical surface, and the diameter of the device is matched with the diameter of the steamer;

[0095] ③ After the steam reaches the predetermined temperature, open the steam supply valve to ensure the quality of the steam supplied, and take strict heat preservation measures for the steam pipeline to reduce the condensed water content of the steam;

[0096] ④According to the process target design, put a set amount of ...

Embodiment 3

[0110] Taking 1270 kilograms of processed walnut kernels as an example, the present invention is further described as follows:

[0111] 1. Raw material preparation

[0112] The walnut kernels are 1270 kg, and the annual output of walnut kernels has reached the GB22165 food hygiene standard for walnut kernels. The color sorter is used to control the acceptance of raw materials.

[0113] 2. Mechanical equipment preparation

[0114] Spherical steaming pot with a diameter of 1.2 meters. The steaming rack adopts a separate type, the diameter of which is the same as that of the pot, and the arch height is 0.25 meters.

[0115] 3. Process flow

[0116] The start-up conditions include 380V power supply, drinking water source, qualified measuring instruments, and accurate digital control devices. Clean and disinfect the production workshop, the facilities and equipment used, and the pipes with steam, and wipe them clean to ensure that the clean production oil is not polluted. The p...

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Abstract

The invention discloses a preparation method of walnut oil. The preparation method comprises the following steps: (1) roasting: roasting walnut kernels by using an electric temperature-controlled wokuntil 90% or more of walnut kernel coating are removed, and then naturally cooling the roasted walnut kernels to 35 DEG C or below; (2) crushing: crushing the cooled and roasted walnut kernels by using a twin-roller machine, wherein the crushing particle sizes reach 50-70 mesh; (3) steaming the material: in the steaming operation, spreading the crushed walnut kernels on a steaming tool with a hemispherical surface, and thoroughly steaming the material by using steam as a medium; (4) pressing into a cake: sending the steamed walnut kernel material into a cake pressing mold to make cake blank; (5) squeezing: fully filling a charging barrel of a presser with the cake blank to realize the cake blank filling of the charging barrel, collecting of semi-finished oil, self-discharging of cake mealand returning the charge barrel to the original position; (6) filtering and purifying: carrying out four stages of filtration and precipitation to obtain the clear and translucent walnut oil. The matching precision degree of the production equipment provided by the invention reaches 95%, and the automation degree can be improved; the material handling capacity of the preparation method within theunit time is two times or more that of the original preparation method; the nutritional index of the walnut oil prepared by the method is higher than those of the similar products by 3-5%; the oil yield of the walnut kernels reaches 57%; the residual oil of the cake meal is 6-6.8%.

Description

technical field [0001] The invention relates to a preparation method of walnut oil. Background technique [0002] At present, walnut oil production methods at home and abroad are divided into hydraulic cold pressing, spiral hot pressing, organic solvent extraction, water substitution method or aqueous enzymatic oil production process. Because the process method is simple and the labor cost is low, the production demand of this period is met. However, these methods generally have problems such as high energy consumption, low degree of automation, loss of nutrients, and environmental pollution in the preparation of walnut oil. [0003] The present invention optimizes the core process technology of walnut oil production, realizes the transformation of traditional walnut deep processing enterprises into equipment automation production process, promotes technological progress, promotes the development of productivity, and lays the foundation for the comprehensive formation of wa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11B1/04C11B1/16C11B1/06C11B3/00
CPCC11B1/04C11B1/06C11B1/16C11B3/001
Inventor 张俊锋薛代涵张红雨
Owner HUBEI WULONGHE FOOD
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