Preservative special for cordate houttuynia and preparation method thereof

Abstract

The invention relates to the technical field of vegetable preservation and specifically relates to a preservative special for cordate houttuynia and a preparation method thereof. The preservative is prepared from cortex eucommiae extract, lonicerae flos extract, cabbage extract, buckwheat flower extract, rue leaf extract, acanthopanax senticosus extract, pueraria starch and nanometer zinc oxide. The preparation method comprises the following steps: firstly, stirring all the extracts and then performing microwave processing; adding soda water and uniformly stirring; adding nanometer zinc oxide and ultrasonically dispersing; and adding pueraria starch, ultrasonically dispersing and then centrifuging, thereby acquiring the preservative. After the preservative provided by the invention is utilized to treat the cordate houttuynia, the respiration intensity of cordate houttuynia and the activity of peroxidase and polyphenol oxidase can be restrained and the oxidized process of the mineral substance, vitamin, and the like, can be delayed. The preservative has the advantages of non-toxicity, high resource utilization ratio and convenience in use.

Description

technical field [0001] The invention relates to the technical field of vegetable fresh-keeping, in particular to a special fresh-keeping agent for houttuynia cordata and a preparation method thereof. Background technique [0002] Houttuynia cordata is also known as Zheergen. It is the dry above-water part of the perennial herbaceous plant Bougainvillea of ​​the family Sanbaiaceae. In summer, when the stems and leaves are lush, the flower spikes are often harvested, washed, dried in the shade or used fresh. Spicy in the mouth, slightly cold in nature; returns lung, bladder, large intestine meridians. There is heat-clearing and toxic substances removing, reducing phlegm and expulsion of pus and eliminating carbuncle, the effect of inducing diuresis for reducing swelling and treating stranguria. Indications for asthma and cough due to lung heat, lung carbuncle and vomiting of pus, throat moth, dysentery, malaria, edema, carbuncle sore, febrile stranguria, eczema, prolapse of...

AI Technical Summary

Problems solved by technology

[0003] Moreover, the origin of Houttuynia cordata is limited, and it is mainly produced in the provinces south of the Yangtze River Basin in China. If the northern cities want to eat it, they can only rely on the transportation of Houttuynia cordata. Research shows that after storage at room temperature for 1 day, it starts to turn black, and after 2 days began to rot, therefore, the storage performance of Houttuynia cordata caused its circulation obstacles or increased transportation costs

[0004] At present, the fresh-keeping storage of Houttuynia cordata mainly adopts low temperature, smearing, respiratory depression (1-MCP), chemical treatment, etc. However, these technologies have disadvantages such as food safety, complicated operation, and unsatisfactory effect. Therefore, it is necessary to study a non-toxic , pollution-free, easy to operate, and the preservative that makes Houttuynia cordata suitable for normal temperature storage has become a current hot issue

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