Food safety detection device and manufacturing method for the same

Patent metadata

Field	Value
Publication number	US-9689854-B2
Application number	US-201414524617-A
Country	US
Kind code	B2
Filing date	Oct 27, 2014
Priority date	Jun 25, 2013
Publication date	Jun 27, 2017
Grant date	Jun 27, 2017

Abstract

A food safety detection device includes a xylem fiber substrate, which is configured with a sampling portion and a reaction portion. The reaction portion includes at least one chemical reagent. The sampling portion absorbs a test sample. The test sample moves on the xylem fiber substrate to the reaction portion and reacts with the chemical reagent. A manufacturing method for the food safety detection device is also disclosed. The food safety detection device is advantageous for easy operation, safety and rapid analysis.

First claim

What is claimed is:

1. A food safety detection device comprising:
a xylem fiber substrate, which is configured with:
a sampling portion; and
a reaction portion comprising at least one chemical reagent;
wherein, the sampling portion absorbs a test sample, the test sample moves on the xylem fiber substrate to the reaction portion and reacts with the chemical reagent, and
wherein the xylem fiber substrate is further configured with a transmission portion connected to the sampling portion and the reaction portion, and at least a part of the transmission portion is processed by hydrophobic surface treatment,
the reaction portion has an accommodating space and a bulk body, the accommodating space is formed on a surface of the xylem fiber substrate, at least a part of the bulk body is disposed in the accommodating space, and the chemical reagent is disposed on the bulk body, and the accommodating space is disposed between an opened part and a main part of the xylem fiber substrate,
the opened part is at least partially connected to the main part, and
the densification property of the bulk body is greater than that of the reaction portion.

2. The detection device of claim 1 , wherein the xylem fiber substrate comprises cellulose, lignin and/or hemicellulose.

3. The detection device of claim 1 , wherein the chemical reagent comprises a food additive reagent, a pesticide reagent, or a pathogenic microorganism reagent.

4. The detection device of claim 1 , wherein the detection device is a stirring rod, a toothpick or a chopstick.

5. The detection device of claim 2 wherein cellulose is α-cellulose, and the proportion of α-cellulose in the bulk body is greater than that in the reaction portion.

6. A manufacturing method for a food safety detection device, comprising steps of:
providing a xylem fiber substrate;
forming a sampling portion and a reaction portion on the xylem fiber substrate;
disposing at least a chemical reagent in the reaction portion so as to form the detection device,
disposing a transmission portion on the xylem fiber substrate, wherein the transmission portion connects to the sampling portion and the reaction portion;
processing at least a part of the transmission portion by hydrophobic surface treatment;
forming an accommodating space and a bulk body in the reaction portion, wherein the accommodating space is disposed between an opened part and a main part of the xylem fiber substrate, and at least a part of the bulk body is disposed in the accommodating space and the opened part is at least partially connected to the main part; and
disposing the chemical reagent on the bulk body, wherein the densification property of the bulk body is greater than that of the reaction portion.

7. The manufacturing method of claim 6 , wherein the step of providing the xylem fiber substrate comprise providing a raw material containing xylem fiber and to physically process the raw material to extract the xylem fiber substrate.

8. The manufacturing method of claim 6 , wherein the xylem fiber substrate comprises cellulose, lignin and/or hemicellulose.

9. The manufacturing method of claim 6 , wherein the chemical reagent comprises a food additive reagent, a pesticide reagent, or a pathogenic microorganism reagent.

10. The manufacturing method of claim 6 , wherein the detection device is a stirring rod, a toothpick or a chopstick.

11. The manufacturing method of claim 10 , further comprising, before the step of providing the xylem fiber substrate, a step of:
shaping the xylem fiber substrate to a shape of stirring rod, a toothpick or a chopstick.

12. The manufacturing method of claim 8 , wherein cellulose is α-cellulose, and the proportions of α-cellulose in the bulk body is greater than that in the reaction portion.

Assignees

• Nat Univ Tsing Hua

Inventors

• Kuan Chen-Meng
• York Roger L
• Langer Robert S
• Cheng Chao-Min

Classifications

• G01N33/523

  the element being adapted for a specific analyte · CPC title

• B05D7/06

  to wood · CPC title

• G01N33/528

  Atypical element structures, e.g. gloves, rods, tampons, toilet paper · CPC title

• G01N33/02 Primary

  Food · CPC title

• G01N33/04

  Dairy products · CPC title