Superhigh-pressure fresh keeping method for fresh rosa roxburghii

Abstract

The invention discloses a superhigh-pressure fresh keeping method for fresh rosa roxburghii. The superhigh-pressure fresh keeping method comprises the following steps of cleaning the rosa roxburghii: cleaning the rosa roxburghii with ultrasound high-pressure water cleaning equipment for 15-25 minutes; removing stabs of the rosa roxburghii: removing the external stabs of the rosa roxburghii fruits with a rotary mill; weighing the rosa roxburghii and loading the rosa roxburghii in bags: based on the unit of 3-8 kilograms of the rosa roxburghii in each bag, loading the rosa roxburghii in HDPE bags; injecting water for vacuum sealing: injecting reverse osmosis water to the HDPE bags loaded with the rosa roxburghii, and performing vacuum sealing to form rosa roxburghii water bags; using a superhigh-pressure processing technique, putting the rosa roxburghii water bags in a processing container of a high-pressure processing machine, and applying stationary liquid pressure of 100-800MPa, wherein the processing time is 5-10 minutes; and taking out the processed rosa roxburghii water bags, and preserving the rosa roxburghii water bags under normal atmospheric temperature. According to the superhigh-pressure fresh keeping method disclosed by the invention, the original flavor and the nutrient value can be maintained, the refrigeration and circulation shelf life can be prolonged, and the superhigh-pressure fresh keeping method has the same food safety grade as a conventional thermization method, and maintains the characteristics of flavor and the like.

Description

technical field [0001] The invention relates to an ultra-high pressure fresh-keeping method for fresh roxburghii, belonging to the technical field of fresh fruit insurance. Background technique [0002] Rosa roxburghii has a long history as a medicinal and edible variety in Guizhou. At present, there are large areas of artificial planting in Guizhou Province and Kaifeng City, Henan Province. In particular, Bijie, Liupanshui, and Tongren in Guizhou are the areas with the most abundant roxburghii resources. [0003] Rosa roxburghii enzymes are rich in vitamin C (Vc), superoxide dismutase (SOD), roxburghii flavonoids, rosaberry polysaccharides and a variety of essential amino acids for the human body. As far as its nutritional content is concerned, Rosa roxburghii is a wild fruit with high nutritional value, high medicinal value and wide application. Its pulp tastes sweet and sour and has a strong fruity taste. At the same time, Rosa roxburghii has the highest vitamin C and vi...

AI Technical Summary

Problems solved by technology

[0004] Therefore, it has the above-mentioned excellent characteristics, so it will be very important to avoid the insurance treatment of the fresh roxburghii after harvesting. The post-harvest fresh-keeping treatment of the existing roxburghii fresh fruits mostly adopts the fresh fruit refrigeration method or the juice extraction method, because of the required construction. The power consumption of freezing and refrigerating equipment and subsequent temperature control during freezing and refrigerating will also increase the cost of using fresh thorn pears, and the electricity cost for cold storage will increase with the length of storage period, which is not conducive to the subsequent industrial development and convenience of thorn pears

At the same time, the existing insurance methods still have the easy fermentability of the fruit after harvest, the problem of rotten fruit during the fresh-keeping period, large or unstable quality changes, and thus lose its due commercial value and utilization in all aspects of processing.