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A vegetable and gamma ray technology, applied in the preservation of fruits and vegetables, preservation of fruits/vegetables by radiation/electrical treatment, food preservation, etc., to achieve the effects of prolonging the preservation period, less residues of microorganisms and pesticides, and high sterilization efficiency
Inactive Publication Date: 2012-09-19
临沂兴大工程有限责任公司
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[0005] In order to solve the above vegetable sterilization methods with poor sterilization effect, cumbersome operation and destruction of active ingredients, the present invention provides a method with good sterilization effect, easy operation, maximum Vegetable sterilization method for protecting active ingredients of vegetables
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Embodiment 1
[0014] The fresh cucumbers bought from the market were divided into two groups, the experimental group and the control group.
[0015] The cucumbers of the experimental group were soaked in 1.8wt% chitosan solution for 60s, dried in the air, and irradiated with γ-rays generated by a cobalt-60 γ-irradiation device, and the absorbed dose of γ-rays was 1kGy.
[0016] It is measured that the microbial killing rate before and after sterilization reaches 95%, and the degradation rate of pesticide residues reaches 100%.
[0017] For the cucumbers of the above-mentioned treated experimental group, the vitamin C content was 72mg / kg, the water content was 97.1%, the soluble sugar content was 1.6%, and the soluble solid content was 4.3. After storage for 7 days, the vitamin C content in the cucumber was 60mg / kg, containing The water content is 94.3%, the soluble sugar content is 1.4%, and the soluble solid content is 4.0.
[0018] The cucumbers in the control group were directly irradia...
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Abstract
The invention relates to the technical field of vegetable sterilization, in particular to a vegetable sterilization method. Vegetables are soaked into 1.8 weight percent chitosan solution for 60 seconds and are dried, gamma rays are adopted for radiation, the gamma ray absorption dosage is 1kGy, a gamma ray generator is a cobalt-60 gamma radiation device, and the vegetables are cucumbers. The cucumbers are placed into the chitosan solution to be soaked, then, the gamma rays are adopted for irradiation, active ingredients in the vegetables can be protected as much as possible, in addition, the sterilization efficiency is high, the microbe and pesticide residue are little, and the fresh keeping period of the cucumbers is also prolonged to a certain degree.
Description
technical field [0001] The invention relates to the technical field of vegetable sterilization, in particular to a vegetable sterilization method. Background technique [0002] Various diseases will occur during the growth of vegetables, such as downy mildew, gray mold, powdery mildew, fusarium wilt, viral disease, bacterial angular spot, soft rot, root rot, black spot , blight, damping-off, bakanae, etc., so pesticides for vegetable bacterial, fungal, and viral diseases should be selected for prevention and control, but these pesticides will more or less remain on vegetables. Moreover, there will be common pathogenic bacteria and viruses such as Escherichia coli, fungi, hepatitis virus, spores and Staphylococcus aureus on vegetables. If they are not cleaned cleanly, they will easily lead to diseases. [0003] Therefore, sterilizing vegetables is a very important process. [0004] Existing sterilization methods mainly include fungicides made of drugs, microwave or radia...
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