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Film covering apparatus and film covering method thereof

A film-covering device and film-covering technology are applied in the fields of preserving seeds through drying, preserving seeds with a coating protective layer, and food science. It can solve the problems of high storage costs and slow progress, and achieve uniform coverage and effective use. , increase the effect of storage and shelf life

Active Publication Date: 2021-02-19
ZHEJIANG FORESTRY UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] With the development of technologies such as material science and chemical engineering, chemical vapor deposition technology has also been improved and applied to the preparation of polymer films and the surface modification of micro-nano materials in recent years

Method used

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  • Film covering apparatus and film covering method thereof
  • Film covering apparatus and film covering method thereof
  • Film covering apparatus and film covering method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] exist figure 1 , figure 2 , image 3 In the shown embodiment, a film covering device includes a raw material processing system 1 and a gas phase system 2 communicated with each other. The raw material processing system 1 includes a processing chamber 4 with an output pipeline 3, and is arranged inside the processing chamber 4. The rotary raw material processing table 5 and the uniform flow chamber 6 arranged under the rotary raw material processing table 5, the gas phase system 2 includes a reaction chamber 7 and a heater 8, and the reaction chamber 7 is arranged inside the heater 8 , the reaction chamber 7 communicates with the flow equalization chamber 6 through a gas exchange pipeline 9 , and the reaction chamber 7 communicates with the external gas 11 through a gas distribution pipeline 10 .

[0038] The rotary raw material processing table 5 includes a driving motor 12 , a rotating roller 13 and a rotating guide plate 14 , and the rotating guide plate 14 is rota...

Embodiment 2

[0073] In the present example, 10 g of filmed shelled walnuts and ordinary shelled walnuts were taken and divided into two groups. They were placed under light-proof airtight conditions and light-proof airtight conditions respectively at a temperature of 25 ° C. 30 days, 90 days to measure physical and chemical indicators, microbial indicators.

[0074] 1. After 30 days

[0075] A. Physical and chemical indicators

[0076]

[0077]

[0078] B. Microbiological indicators

[0079]

[0080] 2. After 90 days

[0081] A. Physical and chemical indicators

[0082]

[0083] B. Microbiological indicators

[0084]

[0085]

[0086] Can know by embodiment 2:

[0087] Through the above experiments and tests, it can be found that the quality of covered walnuts is always higher than that of ordinary ones no matter in airtight or non-airtight conditions, and it can be found that there is an obvious antibacterial effect. To sum up, this process overcomes the problems o...

Embodiment 3

[0089] In this embodiment, the reaction raw material gas is selected as a mixed gas with a mass ratio of 1:1 of glycerin and octanoic acid gasified under reduced pressure, and the crosslinking agent is sodium citrate. The dry time is 120 hours, the gas reaction time is 8 hours, and the gas reaction temperature is 270 degrees Celsius. After the above-mentioned process operation, the torreya torreya product with the caprylic acid monoglyceride film with sodium citrate as the crosslinking point is obtained on the surface, and the product is carried out Various tests of sensory indicators, physical and chemical indicators, and microbial indicators.

[0090] 1. Sensory indicators

[0091]

[0092] 2. Physical and chemical indicators

[0093]

[0094]

[0095] 3. Microbiological indicators

[0096] Test items Film Peeled Almond index Testing method Total number of colonies 1981CFU / g ≤10000CFU / g GB4789.2 Escherichia coli 7MPN / 100g ≤30MPN...

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Abstract

The invention discloses a film covering apparatus. The film covering apparatus comprises a raw material treatment system and a gas phase system which communicate with each other, wherein the raw material treatment system comprises a treatment chamber with an output pipeline, a rotary raw material treatment table arranged inside the treatment chamber, and a flow equalizing chamber arranged below the rotary raw material treatment table, the gas phase system comprises a reaction chamber and a heater, the reaction chamber is arranged inside the heater, the reaction chamber communicates with the flow equalizing chamber through a gas communication pipeline, and the reaction chamber communicates with an external gas through a gas configuration pipeline. The invention further discloses a film covering method by the film covering apparatus. The substance exchange between film-covered seeds and the outside world is controlled to the lowest point, so that purposes of deliquescence resistance, oxidation resistance, mold resistance and storage life prolonging are achieved. Meanwhile, the change of the surface structure and even micro morphology of the seeds is avoided, so that the mouth feel and functionality of the seeds are not damaged. The vapor deposition process is controllable, the structure is simple, and the operation process is integrated.

Description

technical field [0001] The invention relates to the field of processing and preservation of seed foods such as nuts, in particular to a coating device and a method for coating seed foods such as nuts with a film using the device. Background technique [0002] With the improvement of living standards, seed foods such as nuts have become important and indispensable snack foods in people's daily life. Nuts contain a large amount of vitamins and minerals. Moderate consumption of nuts can promote physical development, enhance physical fitness, protect cardiovascular and cerebrovascular health, prevent diseases, and resist aging. However, while nuts and other seed foods have become national food, their short storage and shelf life have also become a prominent problem. There are many cases of waste and economic loss due to imperfect storage conditions. For example, the Food and Drug Administration has exposed that a certain type of nut food from a well-known e-commerce company ha...

Claims

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Application Information

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IPC IPC(8): A23B9/14A23B9/08A23L25/00A23L29/00
CPCA23B9/14A23B9/08A23L25/25A23L29/03
Inventor 郭明周泓彬胡海龙方涛吴荣晖周建钟
Owner ZHEJIANG FORESTRY UNIVERSITY