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Preparation method and discrimination method of coating seeds with anti-counterfeit function

A technology of coated seeds and functions, which is applied in the field of preparation and identification of coated seeds with anti-counterfeiting functions, can solve the problems of anti-counterfeiting products confusion, anti-counterfeiting costs being imitated, etc., and achieve the effects of rapid detection, reduced possibility, and low cost

Inactive Publication Date: 2011-02-16
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the anti-counterfeiting of seed packaging is an indirect anti-counterfeiting technology. While enterprises are constantly improving anti-counterfeiting technology, counterfeiters are also constantly improving counterfeiting technology. The confusion of the packaging industry and the confusion of anti-counterfeiting products make it hard for seed companies to guard against
While raising the cost of anti-counterfeiting, seed companies also bear a considerable risk of being imitated

Method used

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  • Preparation method and discrimination method of coating seeds with anti-counterfeit function
  • Preparation method and discrimination method of coating seeds with anti-counterfeit function
  • Preparation method and discrimination method of coating seeds with anti-counterfeit function

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preparation example Construction

[0017] The steps of the preparation method of the coated seed with anti-counterfeiting function are as follows:

[0018] 1) Na 2 HPO 4 2H 2 O 35.61g or Na 2 HPO 4 ·7H 2 O 53.65g or Na 2 HPO 4 12H 2 Dissolve O71.7g in 800ml distilled water, then dilute to 1000ml with distilled water, and prepare 0.2mol / LNa 2 HPO 4 Solution, namely mother liquor A; NaH 2 PO 4 ·H 2 O 27.6g or NaH 2 PO 4 2H 2 O 31.2g was dissolved in 800ml of distilled water, and then the volume was adjusted to 1000ml with distilled water to prepare 0.2mol / LNaH 2 PO 4 Solution, i.e. mother liquor B;, mix mother liquor A (x ml) with mother liquor B (y ml) and then dilute to 200ml with distilled water to obtain phosphate buffered solution with a concentration of 0.1mol / L and different pH values ​​as shown in the table below liquid:

[0019] x(ml)

y(ml)

pH

72.0

28.0

7.2

77.0

23.0

7.3

81.0

19.0

7.4

84.0

16.0

7.5...

Embodiment 1

[0025] Add 1.5 g of fluorescein to 500 ml of 0.1 mol / L phosphate buffer with pH 8.0, adjust the stirrer to 600 rpm, and stir until a uniform fluorescent solution is formed, with a concentration of 3.0 mg / ml. Weigh 100 g of rapeseed seeds, spray with the prepared solution when coating the inner layer powder, and perform seed coating treatment according to the conventional method to obtain coated seeds with anti-counterfeiting function. Place the obtained coated seeds directly on a glass slide, with an interval of more than 1 cm between the coated seeds, and then use a dropper to absorb a pH 8.0 phosphate buffer solution with a concentration of 0.1 mol / L, and drop 1 to 2 drops on each seed. After 5 seconds, place the glass slide under ultraviolet light with a wavelength of 200-400nm, and the bright yellow fluorescence can be observed with the naked eye. The effects of treatment on seed germination and seedling growth are as follows (Table 1):

[0026] Table 1 Germination and se...

Embodiment 2

[0030] Add 0.5 g of fluorescein to 500 ml of 0.1 mol / L phosphate buffer with pH 7.4, adjust the stirrer to 500 rpm, and stir until it becomes a uniform fluorescent solution with a concentration of 1.0 mg / ml. Weigh 100g of onion seeds, spray with the prepared solution when coating the inner layer powder, and coat the seeds according to the conventional method to obtain the coated seeds with anti-counterfeiting function. Place the obtained coated seeds directly on a glass slide, with an interval of more than 1 cm between the coated seeds, and then use a dropper to absorb a pH 8.0 phosphate buffer solution with a concentration of 0.1 mol / L, and drop 1 to 2 drops on each seed. After 5 seconds, place the glass slide under ultraviolet light with a wavelength of 200-400nm, and the bright yellow fluorescence can be observed with the naked eye. The effect of treatment on seed germination and seedling growth is as follows (table 2):

[0031] Table 2 Germination and seedling growth perf...

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Abstract

The invention discloses a preparation method and a discrimination method of coating seeds with an anti-counterfeit function. The preparation method comprises the following steps: preparing a fluorescence colorant and a solvent into uniform fluorescence solution with certain concentration according to the technology, spraying the fluorescence solution while coating inner-layer power, and finally coating the seeds according to a conventional method to obtain the coating seeds with the anti-counterfeit function. The methods of the invention have the characteristics of simplicity, low cost and easy operation; and the adopted fluorescence colorant is harmless for the seeds and can improve the seed vitality to a certain degree. By means of the anti-counterfeiting method of the coating seeds disclosed by the invention, the fluorescence in the coating material of the seeds can be simply, conveniently and rapidly observed, thus achieving the purpose of directly anti-counterfeiting the seeds.

Description

technical field [0001] The invention relates to a method for preparing and identifying coated seeds with anti-counterfeiting functions, which belongs to the direct anti-counterfeiting treatment method for seeds. Background technique [0002] Since my country's "Seed Law" was promulgated and implemented and the seed market was liberalized and invigorated, the seed industry has become more and more aware of the protection of its own varieties and brands, but the market is still flooded with fake and shoddy seeds. In production, fake and genuine seeds are sold as good ones, and fake and inferior seeds are sold to make huge profits from time to time, which brings great harm to agricultural production and farmers. According to statistics, counterfeit products in the global seed industry account for 5-8% of its trade. Most seed companies are trying to use various anti-counterfeiting technologies to reduce the possibility of being counterfeited and reduce civil disputes caused by ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/76A01C1/06
Inventor 胡晋关亚静
Owner ZHEJIANG UNIV
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