Devices, systems, and methods for reducing microbial load during product coating
A treatment system, including a conveyor bed configured to transport a plurality of products; a brushing device located along the conveyor bed and having one or more brushes that include a first antimicrobial compound; a surface treatment device including a lamp configured to emit light of a peak wavelength directed toward a portion of the conveyor bed; and a coating device configured to deliver a coating mixture onto the plurality of products on the conveyor bed.
1. A method for treating a product, comprising:
removing a plurality of particulates from a surface of a product;
exposing the surface of the product to a light of a first wavelength;
heating a coating mixture to a first temperature; and
coating the product with the heated coating mixture.
2. The method of claim 1 , wherein removing the plurality of particulates comprises brushing the surface of the product with an antimicrobial brush which includes an antimicrobial compound selected from a group consisting of a nanoparticle, an antibiotic compound, and an oxide.
3. The method of claim 1 , comprising, after heating the coating mixture to the first temperature, cooling the coating mixture to a second temperature before coating the product with the heated coating mixture.
4. The method of claim 1 , wherein the first wavelength is between 200 nm and 280 nm.
5. The method of claim 1 , wherein the coating mixture includes an antimicrobial compound activated by exposure to ultraviolet radiation of a first wavelength.
6. The method of claim 5 , wherein the method further comprises exposing, following coating, the product to a light of the first wavelength.
7. The method of claim 6 , wherein the first wavelength is in range from 200 nm and 280 nm.
8. The method of claim 6 , wherein the exposing comprises exposing the product to the light of the first wavelength such that the coating mixture receives an estimated dose threshold of at least 5 mWs/cm 3 .
9. The method of claim 8 , wherein the estimated dose threshold is at least 10 mWs/cm 3 .
10. The method of claim 9 , wherein the coating comprises spraying, via a plurality of sprayers, the coating mixture onto the product at a flow rate sufficient such that the coating mixture receives the estimated dose threshold.
11. The method of claim 1 , wherein the coating comprises coating the product with the heated coating mixture using antimicrobial brushes.
12. The method of claim 3 , wherein the first temperature is in a range from 75° C. and 100° C., and the second temperature is in a range from 50° C. and 90° C.
13. The method of claim 12 , comprising mixing a coating agent in a solvent to form the coating mixture.
14. The method of claim 13 , wherein the mixing further comprises mixing a sanitizing agent with the coating agent in the solvent.
15. The method of claim 13 , wherein the mixing further comprises mixing an antimicrobial compound with the coating agent in the solvent.
16. The method of claim 15 , wherein the antimicrobial compound is a nanoparticle comprising a metallic compound.