Introduction to walnuts Nutrition facts of walnut: 蛋白质为15～20克，核桃中脂肪和蛋白是大脑好的营养物质。 Each 100 grams of walnut contains about 50 to 64 grams of fat. 71% of the fat in walnuts is linoleic acid and 12% is linolenic acid. Protein is 15 to 20 grams. Fat and protein in walnuts are good nutrients for the brain. The sugar is 10 grams, and contains nutrients such as calcium, phosphorus, iron, carotene, riboflavin (vitamin B2), vitamin B6, vitamin E, walnut leaf quinone, phospholipids, and tannins. Walnut types: There are also many excellent walnut varieties throughout China, such as the "Shimen walnut" in Hebei, which is characterized by fine grains, thin skins, and sweet flavors, with a kernel yield of about 50% and some oil yields of 75%. Uighur people call it "Kekiyi", which means that the shell is thin and the oil content is 75%. This variety has a fast result, and the masses describe it as "one year, two years old, three years full of walnuts". The walnut skin in Qinling, Shaanxi is as thin as an egg shell, commonly known as "egg skin walnut". A good variety, "Mian Walnut", has a thin skin and a thick flesh. Two walnuts are held in your hands, and the walnut skins are broken when you squeeze it slightly. The small walnuts produced in Hangzhou are also very popular among southerners.
Paper walnut (left)
Egg skin walnut (left)
Deep processing of walnuts
First, the use of walnut shells
Activated carbon made from walnut shells through high-temperature carbonization and water vapor activation is used for polishing, adsorption and filtration, and is used for food, beverage, and wastewater treatment.
There are also craftsmen who can use wild walnut shells to make various interior decorations, such as table lamps, vases, ashtrays, and tissue boxes.
Second, walnuts take kernels Walnuts take kernels, there are artificial kernels, semi-manual and semi-machine kernels, and machine kernels. At present, it is suitable for bosses who are just starting a business. The yield of 1/2 and 1/4 kernels by artificial kernels is high, that is, the rate of whole kernels is high, and the obtained walnut kernels can be artificially guaranteed to contain no shells. In the later stage, the date is added with walnuts or spiced walnuts. It will be high. Half-manual and half-machine kernel extraction , with less investment in early stage equipment, is suitable for bosses who have determined their processing direction or already have a walnut kernel distribution project. The kernel rate is not as high as artificial, but the cost and processing efficiency are high. Whole kernels can be used for casual snacks. The obtained broken kernels can be sieved and cleaned to extract oil. The process of taking kernels by machine and peeling thin-peel walnuts is as follows: The degree of mechanization is high, and the investment in equipment will be high. The investment in small output is basically about 100W. The yield of 1/2 and 1/4 kernels is about 80%, and the rest are broken kernels.
Pecans are peeled and the kernels obtained are mainly used to squeeze oil. The obtained walnut kernels are broken kernels, and the kernels contain part of the shell. The price of 20T / D pecan peeling is about 200,000. (Telephone: 13503839006)
| Secondary shell breaking |
Original fruit grading → one shell breaking → grading → shell kernel separation → 1/2 kernel, 1/4 kernel, 1/8 kernel, 1/16 kernel
Third, the deep processing of walnut kernels
Deep processing of walnut kernels, large walnut kernels can be used for a variety of leisure snacks, made of jujube walnuts, spiced walnut kernels, etc. The storage and sterilization of leisure snacks can be done for a good storage time.
The crushed walnut kernel can also be made into walnut oil, and the walnut kernel after pressing can be made into walnut powder. The following explains the process of processing walnut kernels into walnut powder and walnut oil.
Method 1: Pastry walnut powder
Walnut kernels → Peeling and washing → Walnut kernel drying → Walnut kernel degreasing (physical pressing and degreasing) → Pressing to get fat and refining
Crusher (needs to prevent clogging) ← degreased walnut cake
Walnut powder (this kind of walnut powder is mainly used for making pastries because of its large particles)
This walnut powder processing investment is simple, but the added value is low.
Method 2: Processing technology of instant walnut powder with all ingredients
Walnut kernels →→ Peeled and washed →→ Walnut kernel degreasing →→→ Refining →→ Homogenization →→ Spray drying
Refining ← Walnut Oil Sucrose + Phosphate + Polyglycerol Fatty Ester + Water
(1) Peeling of walnut kernels: forced peeling with high alkali, high temperature, short-term, and high-pressure water. Use a 2% NaOH solution at a temperature of 90 ° C for a period of 1-1.5min. After alkali treatment, rinse the walnut coat with high-pressure water. Peel and dry walnut kernels.
(2) Walnut kernels are degreased. The walnut kernels are degreased by a hydraulic oil press, and the degreased walnut kernels are pulverized.
(3) The degreased walnut oil is refined, and high-quality walnut oil is obtained after refining.
(4) Dissolve sucrose with an appropriate amount of water.
(5) Peel the walnut kernel and sucrose solution.
(6) Dissolve phosphate and polyglycerol fatty acid ester in water and add, stir well.
(7) Enter the homogenizer twice for homogenization, the pressure is 40-50Mpa, and the temperature is room temperature.
℃，排风温度70-90℃。 (8) After spray drying, it is sieved to obtain powder. The feed liquid enters the tower at a concentration of 45-50% and is fed at room temperature. The temperature of the hot air into the tower is 170-190 ° C and the exhaust temperature is 70-90 ° C.
Method 3: Processing of instant walnut powder
Selection of walnut kernels → peeling → two refining, separation → emulsion → homogenization → sterilization → concentration → dusting → packaging → finished product.
(1) The selection, peeling, refining and homogenization of walnut kernels are the same as those for walnut milk processing. Add 10 times the amount of water.
(2) The amount of added sugar is 2.5 grams per 100 grams of the original solution, and the sugar concentration is 65%.
(3) Concentration vacuum is 15-17 kPa, and concentrated to about 1/4 of the original volume. The solid content is about 45%.
转/分，乳液温度45-55℃，进风温度200℃，排风温度90℃左右。 (4) The spray drying adopts a centrifugal spray dryer with a rotation speed of 5000-20000 rpm, an emulsion temperature of 45-55 ° C, an inlet air temperature of 200 ° C, and an exhaust air temperature of about 90 ° C.
(5) Packaging, vacuum packaging or nitrogen filled packaging.
Walnut powder Walnut oil
Instant walnut powder
Walnut degreasing unit equipment
Walnut oil refining equipment (part)
Summary of Zhengzhou Penguins
Walnuts are treasures all over the body, with high added value.
If there is a market and money to invest, you can increase the added value and make profits even greater. In the early stage, if you only know that walnuts are good, you want to do this, and you want to do it slowly, but you have no experience and no sales market. It is
recommended that you can make some walnut oil, walnut powder and other agents or find a distribution partner. The market has been developed, and everything is not a problem. Prospects for the deep processing of walnuts
The first step is to purchase deep processing equipment of Zhengzhou Penguin. It is not easy to make large investment in deep processing equipment. You can start by investing in walnut oil press equipment that has less effectiveness and quick investment. If the investment is small, the investment amount is about 200,000. Make a 3-5 year planning outlook when investing.
The second step: 3-5 years of operation. The success is basically determined. When the supply exceeds the demand, some equipment can be added to increase oil production.
The third step: You can invest in walnut shelling equipment to reduce the cost of manual shelling. It is not recommended to invest in a full-motion form at the beginning. You can choose mechanical and manual semi-automatic form. The investment is about 500,000 to 600,000 yuan.
Step 4: If the market efficiency is high, it is recommended to start investing in some equipment for walnut powder. There are simple techniques for making walnut powder, using a grinder, but this powder can only be used for pastry. If you can invest, you can invest in instant walnut powder, just like the process of making soy milk powder. It is important to do such deep processing to ensure a clean room. Batch production efficiency will be high, so equipment with a high degree of automation is required.
Step 5: Do some deep processing of non-food walnuts, and use walnut shells as activated carbon.
Step 6: You are successful, you must be the walnut fairy / prince. Now you can play with Walnut. Use walnuts to make some carvings. These wenwan carvings can be sold, and you can add some walnut fairy / prince atmosphere to your business.
V. Zhengzhou Penguin Grain & Oil Machinery Co., Ltd. wishes you success
： 13503839006 Need more information, please call: 13503839006
For more product information, please contact Manager Zhang: 13503839006, 0371-86661079