The quality standard of the walnut kernel is a light large whole kernel. It has the highest value, buyers are happy to buy it.
The quality of the kernel largely depends on the variety of the walnut. So a varietal walnut more often meets the standards than a walnut that has grown by chance from a fruit.
However, in addition to the variety, the color of the kernel is influenced by such factors as timely collection, cleaning of the walnut from the green pericarp, proper drying and storage.
Harvesting of walnuts should be carried out immediately after the ripening of the walnut. When the kernel has already fully formed and received all the necessary trace elements, which allows the walnut to be stored for a long time. At the same time, iodine, juglone and tannins, which are contained in large quantities in the green pericarp, did not begin to oxidize and penetrate into the walnut.
* Juglone is a substance that, when oxidized, becomes similar in color to iodine; is strongly absorbed into objects,
with which it touches; has a weak specific odor and antibacterial properties.
* Tannins oxidize and darken when exposed to sunlight.
The main sign of the ripeness of the walnut and the starting point for harvesting is the cracking of the green pericarp.
After harvesting, the walnut must be cleaned of the pericarp and its remnants, preventing oxidation of substances, their penetration into the walnut and staining the kernel in a dark color.
With a small amount of walnuts, peeling is usually done by hand. When there is a lot of walnuts or there is a walnut garden, the peeling is automated. Also, special peeling machines are used by those who buy walnuts from the population.
The peeling machine saves time workers, which in turn allows you to start processing or selling walnuts ahead of competitors, and also reduces wage costs.
Depending on the volume of the walnut, the cleaners are available at 100, 300 și 700 kg/h.
Green walnut peeling and cleaning machine from green peel at 300 kg/h is used by owners of orchards and walnut plantings, as well as walnut buyers from the population. He copes both with a walnut, in which the peel itself separates from the pericarp, and with a young, just ripe walnut.
Walnut peeling machine benefits:
– Retains the light color of the kernel;
– Allows you to start processing earlier than competitors;
– Manual cleaning of large quantities of walnuts takes time and a lot of workers, which is reflected in earnings. The peeling machine speeds up and facilitates the process, requires minimal human intervention;
– Helps to keep hands clean as iodine and juglone are absorbed into the skin for a long time.