Fresh-keeping article containing nano silver, method of preparing the same and use

A technology of nano-silver and nano-silver particles, which is applied in botany equipment and methods, plant preservation, fruit and vegetable preservation, etc., can solve the problems that have not been used, cannot increase the survival rate of aquaculture animals, and cannot provide long-term effective food and agricultural products. Preservation and preservation effect and other issues

Inactive Publication Date: 2008-09-03
钟燿年 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the preservation of this type of food, no fresh-keeping products containing specially treated nano-silver have ever been used on the market.
[0009] In addition, because the general fresh-ke

Method used

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  • Fresh-keeping article containing nano silver, method of preparing the same and use
  • Fresh-keeping article containing nano silver, method of preparing the same and use
  • Fresh-keeping article containing nano silver, method of preparing the same and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Fresh-keeping test of nano-silver fresh-keeping bags

[0040] This example is to test the fresh-keeping ability of the nano-silver fresh-keeping bag of the present invention for salmon, cake, spinach and lotus mist. Five volunteers conducted sensory evaluation for 10 days. The fresh-keeping bags of the control group were purchased from commercially available sealed bags.

[0041] In order to carry out the human sensory preservation test, fresh salmon, cake, spinach and lotus mist samples purchased from supermarkets were respectively placed in the nano fresh-keeping bag of the present invention and a commercially available general fresh-keeping sealed bag, and stored in a refrigerator at 4°C. Then, five volunteers observed the changes of salmon and cake samples with naked eyes on the 1st, 3rd, 5th, 8th and 10th days respectively, and observed the changes of spinach and lotus mist samples on the 1st, 4th, 7th and 10th days respectively, And record the results, as shown i...

Embodiment 2

[0053] Deodorization test of nano-silver fresh-keeping bags

[0054] This example is to test the deodorizing ability of the nano-silver fresh-keeping bag of the present invention for fish and crab legs, and five volunteers conducted sensory evaluation for 10 days. The fresh-keeping bags of the control group were purchased from commercially available sealed bags.

[0055] In order to carry out the human sensory deodorization test, fresh fish and crab leg samples purchased from supermarkets were respectively placed in the nano fresh-keeping bags of the present invention and commercially available general fresh-keeping sealed bags, and stored in a refrigerator at 4°C. Then, five volunteers observed the changes of the samples with naked eyes on the 1st, 3rd, 5th, 8th and 10th day respectively, and recorded the results, as shown in Table 5 and Figure 5 and 6 shown.

[0056] Table 5. Deodorization ability test for fish and crab legs

[0057]

[0058] This result shows that t...

Embodiment 3

[0060] Bacteriostasis test of nano fresh-keeping bags on fish

[0061] A. Antibacterial effect on yellow croaker spoilage bacteria

[0062] The test strain of the bacteriostatic ability test is Staphylococcus aureus (Staphylococcus aureus, ATCC 25923). This strain was inoculated in TSA medium containing 5% sheep blood. Get the bacterium colony of Staphylococcus aureus, adjust the concentration of bacteria amount to McFarland 0.5 (about 1.5×10 8CFU / ml), a series of 10-fold serial dilutions were performed with Mueller-Hinton Broth until the dilution was 10000 times (that is, the expected number of bacteria was 1.5×10 4 CFU / ml).

[0063] Get 50 grams of samples from the yellow croaker purchased from the supermarket respectively and place them in the nano fresh-keeping bags of the present invention and commercially available general fresh-keeping sealed bags, and add 450 milliliters of phosphate buffer solution, after mixing uniformly with a homogenizer (stomacher), respectivel...

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PUM

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Abstract

The invention relates to a fresh-keeping article containing nanometer silver and a preparation method of the fresh-keeping article. In addition, the fresh-keeping article containing the nanometer silver in the invention has strong and long-acting sterilizing and deodorizing properties, so that the invention also relates to the application of the fresh-keeping article containing the nanometer silver. The application comprises the fresh-keeping and preservation of various foods and agricultural products, and the increase of the survival rate of the aquaculture animals.

Description

technical field [0001] The invention relates to a fresh-keeping article containing nano-silver, its preparation method and its use for fresh-keeping food and agricultural products. The fresh-keeping products containing nano-silver particles in the present invention have strong and long-lasting bactericidal and deodorizing properties, and can be used to preserve general foods such as vegetables, fruits, seafood, meat, etc. and agricultural products such as flowers and plants, and can increase aquatic products. Survival rates of farmed animals. Background technique [0002] Many metals, including silver, copper, mercury and zinc, are known to be useful in killing bacteria due to their redox ability, but some metals can be toxic to humans due to their high activity, such as mercury, which can be fatal to humans, so Must be carefully selected as a natural antibacterial material for human use. Moreover, the use of antibiotics as a bactericide has produced many problems or has s...

Claims

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Application Information

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IPC IPC(8): A23L3/358A23L3/00B65B3/00A01N3/02A01N3/00A23B4/24A23B4/00A23B7/157A23B7/00A21D15/00C08J5/00C08L55/02C08L23/02C08L25/06C08L67/00
Inventor 钟燿年朱碧明郭栢源
Owner 钟燿年
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