Preservation method for fresh cut aralia elata seem through combination of high-concentration oxygen modified atmosphere packaging and low-temperature storage

Abstract

The invention provides a preservation method for fresh cut aralia elata seem through the combination of high-concentration oxygen modified atmosphere packaging and low-temperature storage. The preservation method comprises the first step of selecting, the second step of cleaning, the third step of airing, the fourth step of tidying, the fifth step of bagging, the sixth step of air exhausting, the seventh step of inflating, the eighth step of sealing and the ninth step of storing. According to the method, a high-resistance polyethylene film is adopted as a modified atmosphere packaging bag, gas of the high-concentration oxygen modified atmosphere packaging comprises, by inflating proportion, 75%-95% of oxygen and 25%-5% of carbon dioxide gas, and low-temperature storage is combined after modified atmosphere packaging. The preservation method is applied to the preservation of the fresh cut aralia elata seem, the poisonous effect generated by anaerobic respiration is obviously reduced, meanwhile, the respiration action is reduced, color changing is prevented, moisture evaporation and pest and disease damage infections are reduced, the original unique flavor and the nutrient ingredients of the aralia elata seem are maintained to the maximum, and the shelf life of the fresh cut aralia elata seem is effectively prolonged. According to the technical scheme, the rot, browning and reduction of vitamin C, total phenols and other nutrient ingredients of the fresh cut aralia elata seem are obviously restrained, the hardness and the antioxidant activity of the fresh cut aralia elata seem are improved, the fresh cut aralia elata seem has high appearance quality and sanitary quality, the preservation period of the product is prolonged to 10-12 days from 2-3 days, and the price can be increased by 2 times.

Description

technical field [0001] The invention relates to a high-concentration oxygen-modified atmosphere packaging combined with low-temperature storage and fresh-keeping method for fresh-cut prickly shoots, and belongs to the technical field of fresh-keeping and storage of fruits and vegetables. Background technique [0002] Thorn shoots ( Aralia elata Seem ), the scientific name is Aralia longya, commonly known as thorn old buds, thorn dragon teeth, and Bawangcai, belonging to small deciduous trees. The edible part is tender buds, which can be eaten raw, stir-fried, sauced, made into soup, and stuffed. It has a unique flavor and rich nutrition. King of". The thorny shoots have the characteristics of crisp and tender tissue, easy to cut, and are suitable for fresh-cut processing. However, the post-harvest respiration of thorn buds is very strong, and after fresh-cut processing, the tissue structure is destroyed, and a series of physiological and biochemical changes that are not c...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to meet the needs of consumers and provide a method of fresh-cut fresh-cut thorn buds with high-concentration modified atmosphere packaging combined with low-temperature storage. The method is aimed at the fact that fresh-cut thorn buds are prone to browning during storage after processing , hardness and nutrient content decline, and rot, etc., using 75-95% oxygen and 25-5% carbon dioxide gas to carry out high-oxygen modified packaging for fresh-cut thorny shoots, overcoming the harmful anaerobic conditions caused by traditional modified atmosphere

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