Fresh-keeping agent and application of fresh-keeping agent

A fresh-keeping liquid, parts by weight technology, applied in wood impregnation, wood processing utensils, impregnated wood and other directions, can solve the problems of grass toothpicks intolerance to preservation, loss of moisture, unmaintained flexibility, etc., to reduce secondary pollution, The effect of not easy to fade, suitable hardness and toughness

Inactive Publication Date: 2014-04-02
JIANGSU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Grass toothpicks are not resistant to storage. They will lose moisture after long-term storage, and the flexibility cannot be maintained. Only by keeping the freshness of the plants can the flexibility be maintained and the toothpicks can be used better.

Method used

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  • Fresh-keeping agent and application of fresh-keeping agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 7

[0027] Select fresh dogtail grass stems, select stems with a diameter of 0.05-0.3 cm, cut them into 3-9 cm long, and measure their toughness with the method of hanging weights. Specifically: hold 5 randomly selected stalks of dogtail grass at about 0.5cm from both ends, hang weights in the middle, gradually increase the weight until the stems cannot bear it and bend, and record the weight , The average weight of each five fresh grass stems is about 112.3 grams. Prepare the solution according to the concentration of the solution shown in Table 1, add it to each test tube with a certain amount of dogtail grass stems, set up three groups of parallel experiments for each group, seal it, and observe. Two months later, the dogtail grass was taken out, and the flexibility of the dogtail grass stem was measured.

[0028] Table II

[0029] (The value is the weight that every five weights can bear, unit: gram)

[0030] Example 1 2 3 4 5 6 Non-sterile mean firs...

Embodiment 8

[0033] Select fresh dogtail grass stems, select stems with a diameter of 0.05-0.5 cm, cut them into 3-9 cm long, measure their hardness and toughness, and set aside. Prepare the solution according to the solution concentration shown in Table 1, add it to each test tube with a certain number of dogtail stems, set up three parallel experiments for each group, and put each test tube into a high-pressure steam sterilizer to sterilize at 121°C 20min. Remove to cool and observe. Two months later, the dogtail grass was taken out, and the flexibility of the dogtail grass stem was measured.

[0034] Table three

[0035] Example 1 2 3 4 5 6 Autoclaved mean first measurement 80 80 75 75 75 70 second measurement 75 80 75 70 65 65 third measurement 75 85 70 70 70 70 Triple mean 76.7 81.7 73.3 71.1 70 68.3 73.5

[0036] Can find out from embodiment 8 three times mean value: the toughness of the toothpick fresh-ke...

Embodiment 10

[0045] The preparation method of plant toothpick: the plant that is used to make toothpick of the present invention, comprises the monocot grass plant of bluegrass, selects the stem of bluegrass 0.1 centimeter diameter, cuts into 4 centimeters long, puts in 65 ℃ and adds sodium hypochlorite solution Heat and sterilize in distilled water for 30 minutes, immerse in the above-mentioned preservation solution with the best effect, according to the needs of use, put a variable number of sterilized toothpicks, seal and seal together with the preservation solution, and sterilize again.

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PUM

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Abstract

The invention discloses a fresh-keeping agent which comprises the following components in parts by weight: 0.6-5 parts of chitosan, 0.05-0.5 part of ethylene diamine tetraacetic acid, 0.3-5 parts of vitamin C, 0.2-5 parts of sodium benzoate and 1000 parts of distilled water. The invention further discloses application of the fresh-keeping agent. A toothpick preserved by the fresh-keeping agent prepared by the invention does not easily fade and discolor, and the hardness of the toothpick is kept well; a toothpick made of a herbaceous stem rod has a certain flexibility, is better than common bamboo toothpicks, wooden toothpicks, plastic toothpicks and stainless steel toothpicks, and does not easily puncture gingiva, the inner wall of the oral cavity, and the like, and thus a wound is difficultly formed to avoid infection. 1-30 toothpicks preserved by the fresh-keeping agent prepared by the invention can be packaged together with the fresh-keeping agent in each bag; the fresh-keeping agent has a certain corrosion preventing function when keeping fresh, is opened when being used, and can be directly selected without using hands, thus the secondary pollution of the fresh-keeping agent during use is alleviated, and the damage to the oral cavity and the gingiva when the toothpick is used is alleviated.

Description

technical field [0001] The invention belongs to the technical field of quality maintenance of daily necessities, and in particular relates to a fresh-keeping liquid and its application. Background technique [0002] Toothpick is a toothpicking tool used by people, especially middle-aged and elderly people. At present, the commonly used toothpicks are mostly wooden or bamboo rods with thick middle and pointed ends, or plastic toothpicks with sharp ends. Sometimes the things embedded in the teeth cannot be removed; the materials are relatively hard, and it is easy to puncture the gums and the inner wall of the mouth. Moreover, some bamboo and wooden toothpicks have burrs, which can easily scratch the mouth, causing bleeding and forming wounds just like puncturing. If the toothpick is not completely sterilized, countless bacteria and viruses may be hidden. These bacteria and viruses can easily enter the blood circulation system through the wound, causing blood infectious disea...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B27K3/52
Inventor 江明珠周润龙张佳鑫闻燕
Owner JIANGSU UNIV OF SCI & TECH
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