Harvesting and processing method of Carya illinoensis

Abstract

The invention discloses a harvesting and processing method of Carya illinoensis. The method includes the following steps that an ethephon preparation with concentration of 200 mg / kg is sprayed to bearing branches for one time four weeks before harvesting of the Carya illinoensis, and Ca(OH)2 is used for adjusting a power of hydrogen (PH) value to be 7.0; when the ethephon preparation is sprayed for two weeks and 70% of fruit episperm is cracked, the Carya illinoensis is harvested; deadwood and sundries under trees are cleared away, and a black mesh fabric is spread; a machine shakes the bearing branches, fruits falling on the mesh fabric are timely collected, sundries are removed, episperm which is not cracked is removed in a huller, and the fruits are washed by running water; and rinsing, ozone disinfection and drying with a drying machine are performed so that moisture contents of the fruits are lower than 4.3%, and storage is finally performed. By means of the harvesting and processing method, fruit maturity periods of the Carya illinoensis can be unified, natural fruit drop is reduced, a launch date of the fruits is shifted to be earlier, output is improved, fruit cracking and fruit color changing caused by solarization are avoided, and qualities of the fruits are improved so that selling prices of the Carya illinoensis are effectively increased.

Description

technical field [0001] The invention relates to a harvesting and processing method of pecans with thin shells, in particular to a harvesting and processing method which can effectively increase the selling price of pecans with thin shells. Background technique [0002] Thin shell pecan [Carya illinoensis (Wangech.) K.Koch], also known as pecan, American pecan, long pecan, native to the United States, is one of the most important and valuable dry fruit tree species in the world. Rich in nutritional value, the unsaturated fatty acid contained in the nuts is higher than that of olives, 4 times that of walnuts (Juglans regia), and also rich in various amino acids and vitamin B that are beneficial to the human body 1 , B 2 , both fresh and pressed oil. In recent years, with the improvement of people's living standards and the gradual understanding of pecans, people's demand for pecans is increasing year by year. At present, at least 200,000 tons of fruits are consumed in China ...

AI Technical Summary

Problems solved by technology

[0003] Timely harvesting of thin-shell hickory walnuts is very important. If harvested too early, the green skin is not easy to peel off, the kernels are not full, the rate of kernel and oil yield is low, and it is not resistant to storage; if harvested too late, the fruit is easy to fall off. At the same time, Leaving the green skin on the tree for too long after cracking will increase the chance of mold infection, resulting in a decline in the quality of the nut

However, due to the lack of relevant research and supporting technologies and the relative inconsistency of the ripening time of the pecans themselves, primitive methods are generally used for harvesting and processing of pecans. beat, sun, etc.

This kind of harvesting method has problems such as "large difference in maturity of harvested fruits", "great damage to the tree", "early fruit drop yield loss", "poor quality of finished products" and "concentrated time to market", which lead to lower selling prices

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