timberland boots Walnut timely harvesting and post

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Walnut timely harvesting and postharvest handling

Gardening walnut harvest, will be promptly transported to the indoor or outdoor shade, sun exposure can not be placed, otherwise kernel will become darker in color, and reduce fruit quality. 3 3.1 manual removal of Peel peel method walnut harvest, promptly stripping knife or scissors to peel, scrape skin. 3.2 heap steep peeling method. Will come not peeling fruit harvested in cool, ventilated room,[link widoczny dla zalogowanych], then peel fruit 50era piled high around the overlying lOcm wet straw or wet bags, wet grass, raise the temperature inside the reactor to promote fruit ripening, speed up the peeling speed. 4-6 days later, when the expansion or emergence blossoming fruit peel crack, peel away from the shell or cracked foam up to 50%, the light step on their feet, or tap with a wooden stick, or hand rubs and so remove the seed coat. Part of the peeling knife could not peel the fruit peeling or re-focus stack steep for several days, until all peeling up. Retting duration of the heap and fruit maturity is related to the higher maturity, the shorter the time heap steep,[link widoczny dla zalogowanych], but not too long, so as not to peel the nut shell color black, dirty liquid into kernel shell pollution, reduce nut quality. As far as possible during the operation hands, feet and skin contact Peel. 3.3 Pharmacy ripening peeling method requires as heap steep long peeling method, low efficiency, high pollution, the fruit, the quality of goods greater impact on the nuts can be used ethylene ripening peeling. After the harvest, fruit will be picked on a well-ventilated places, to peel fruit sprayed 3000 ~ 5000mg/kg of ethephon solution, stir fruit equitably so that each drug, and then piled steep above the temperature of 3O ��, relative humidity 80% 90%, the 34-day rate of 95% or more away from the skin. Ethylene ripening and drug concentration in the length of time the size and maturity of the fruit. Fruit ripening and high drug concentration is low, ripening time is short. 4 nuts, fruit peel rinse off 4.1 washing method, the time decay of surface residue washed Qingpi nuts, dirt and other contaminants, so as not to affect the appearance and quality of the seed coat. Washing method is to install nuts peeling the basket on the pond or running water, artificial or mechanical stirring for 5 minutes walnut wash, then rinse with water. Easy to clean the surface of the nut residue peel, scrub, rinse. Washing time not too long, so dirty water into the shell, pollution nucleoli. No need to remove and lay it across bleached walnut mat drying. For the export of walnuts, even after washing bleach. Bleach 4.2 bleach method of preparation: the lkg bleaching powder into the warm water of 5 ~ 6kg fully dissolved, add 40 ~ 50kg of water diluted, poured away from the testa Sheng walnut container to bleach appropriate nuts may be drowned, and then stir 5-6 minutes with a wooden stick. When the seed coat and white fish out when to stop stirring, then add in the aqueous solution of bleaching powder lkg continue to use, so after 5-6 consecutive reprovision bleach. Walnuts after bleaching to be washed several times with water continuously, until the fruit surface without leaving any trace of drugs until the Smell. Remember to use the container to Cigang bleach, cement tanks and other appropriate, prohibit the use of iron. Walnut nuts for seed, do not wash after peeling and bleaching, can be directly dried and stored for use. 5 drying bleached walnut nuts can be placed directly on dry ventilated place indoors or outdoors, not on the sun exposure, so as not to shell rupture, nucleolus deterioration. Half-dried, to be spread over a large number of water evaporation and then drying. Appropriate thickness of two layers of nuts. In the dry process, often turning to prevent the seed coat, yellow or mold contamination. Usually takes 5 to 7 days drying, the moisture content of less than 8%. Determine the standard dry walnut nuts: nuts touch knocking sound Cui Xiang, diaphragm easily grated and kernel skin color from white into yellow float, nucleolus crisp, kernel moisture content of not more than 70%. 6 walnut grading standards for grading and packaging: good level, straighten and tidy appearance, the fruit surface smooth or more hemp, grain weight is not less than 8.8kg, full kernel, kernel rate of not less than 59%, shiang; level appearance with the superior grade,[link widoczny dla zalogowanych], grain weight is not less than 7.5kg, compared with full kernel, kernel rate of not less than 50% to 58.9%, shiang; second, the appearance of irregular, not correct, fruit surface Ma, kernel rate of 43% to 49.9%, slightly astringent taste. Packaging under the nut diameter, the shell surface finish, fruit shape,[link widoczny dla zalogowanych], degree of grading and packaging of fruit development. In the design of packaging to pursue intuitive, refined and easy to carry. 7 7.1 Short-term storage of walnut walnuts into the dry storage of the nylon mesh bag or bag, placed in ventilated, dry room to prevent moisture, the lower paving, and to prevent rodent infestation. Note that cold storage plus 7.2 dehumidifying agents, lower the temperature. Best cold air in the extensive library or storage. Polyethylene film bag, sealed and stored at 0 ~ 1 ��, storage effect is quite good. (Received :2009-05-03) ��
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