Transportation and sale freshness retaining method for treating navel oranges with non-woven cloth freshness retaining bags by fennel liquid

Abstract

The invention discloses a transportation and sale freshness retaining method for treating navel oranges with non-woven cloth freshness retaining bags by fennel liquid. The method comprises the following steps: (1) soaking oranges in fennel extracting liquid: refrigerating fresh navel oranges, screening, cleaning, and soaking in 3% fennel extracting aqueous solution for 3 to 5 min; (2) air drying: performing air drying on the navel oranges subjected to soaking in the fennel extracting liquid in a room temperature environment or hot air under the temperature of 37 DEG C to dry the surface; (3) bagging: packaging the navel oranges with the non-woven cloth freshness retaining bags treated by hydroxypropyl methyl cellulose one by one; (4) selling: storing the oranges under the condition of room temperature for sale, or transporting the oranges by a truck to a sale destination for sale. The method is used for refrigerating, delivering, transporting and selling the navel oranges; the technology is simple, safe, nontoxic, environment-friendly, sanitary and low in cost, and the operation is mechanical; particularly, in hot seasons, the weight loss ratio and the rotting rate of the navel oranges can be obviously reduced; the shelf life of navel oranges is prolonged; higher soluble solid content, vitamin C content and total acid content of the navel oranges are kept. The method can be also used for preventing rotting and retaining freshness of the navel oranges during storage.

Description

technical field [0001] The invention relates to a fruit and vegetable storage and fresh-keeping technology, in particular to a summer transportation, sales and fresh-keeping technology for treating navel oranges with fennel fresh-keeping liquid and packing navel oranges in non-woven fresh-keeping bags. Background technique [0002] my country's navel orange planting area ranks first in the world, and its output ranks third in the world. However, the navel orange cultivar is single, resulting in too concentrated marketing period, and the processing industry is backward. Only by extending the sale period through storage can better profits be obtained. At present, fresh navel oranges are mainly stored at room temperature, simple ventilated storage and low-temperature refrigeration. Among them, navel oranges that have been stored under simple ventilation and low-temperature refrigeration can be sold in April and May. However, due to the lack of effective fresh-keeping measures...

AI Technical Summary

Problems solved by technology

At present, liquid paraffin is the most widely used, which can effectively improve the appearance and control the dehydration of fruits and vegetables to a certain extent, but the thickness of the wax layer is difficult to control. If the amount is too large, it will cause the accumulation of odorous substances such as ethanol and acetaldehyde in citrus fruits. [3] ; The research and application of chitosan, propolis, palm wax and chitosan have also achieved certain results, but they are still in the theoretical or experimental stage, and some raw materials are relatively expensive and complicated to prepare. [4~7]

Although single fruit packaging in polyethylene plastic bags can effectively hold water and have low cost, it is easy to cause white pollution, has poor water permeability and air permeability, and harmful gases produced by respiratory metabolism cannot be removed in time, which promotes fruit aging and physiological diseases. Easy to accumulate water, increase fruit rot rate

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