Lotus Leaf Extract,Lemon Balm Extract,Acerola Cherry Powder,Pure Herbal Extracts Xi'an JCF Herb Technology Development Co., Ltd , https://www.jcfherb.com
Harvesting and Postharvest Treatment of Walnuts
The suitable harvest period for walnuts is the change of the intima from white to brown, marking the ripening of walnut kernels. In production, the outer skin often changes from green to yellowish, partially broken, and harvested when individual fruits fall off. The main method for people to harvest walnuts is to use medlars, and some 1-2 weeks prior to natural maturation, spray 500-1000 microliters of ethephon on the trees to make the fruit fall off naturally. The traditional method of peeling walnut skin is stacking method. The collected walnuts are piled in a cool, ventilated room, with a height of 50 cm and a grasshopper or straw of 10 cm above. After 4-6 days, the green skin expands or blemishes. Cracked, tapped with a wooden stick to make the green split nuts. Now it is mostly used in eclipsed peeling, that is, using 3000-5000 ml of kilograms of ethephon for half a minute after dipping, or spraying ethephon evenly with the sprayer so that each fruit is stained. After two days of accumulation, the peel is It can detach from the nucleus and begin to take off. Walnuts after desquamation should be promptly cleaned of rotten green skin, dirt or other dirt on the surface of nuts. After cleaning, perform bleaching treatment, that is, dilute 4-6 times in sodium hypochlorite solution and soak for 4-5 minutes. After the nuts turn white, remove and rinse the nuts with clean water and dry them on the mat. Generally, it is dried in a cool and ventilated place for a long time. After the nut surface is dried, it is transferred to the outside and spread for 5-7 days. During this period, it is often turned. Drying can also be carried out in the barn and the moisture content of the nuts at the end of drying should be less than 8%.