Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for detecting internal quality of jirou sweet persimmon by smell sensor

An odor sensor, internal quality technology, applied in the direction of material resistance, can solve the problem of unseen odor sensor detection of Jiro persimmon, etc., to achieve the effect of increasing the added value of sales, reducing fruit waste, and wide recognition range

Inactive Publication Date: 2010-01-06
NANJING AGRICULTURAL UNIVERSITY
View PDF0 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is no relevant research on the internal quality of Jiro sweet persimmons detected by odor sensors

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for detecting internal quality of jirou sweet persimmon by smell sensor
  • Method for detecting internal quality of jirou sweet persimmon by smell sensor
  • Method for detecting internal quality of jirou sweet persimmon by smell sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0025] The present invention is a method for detecting the internal quality of Jiro sweet persimmon by an odor sensor. The sample is Jiro sweet persimmon. The specific implementation process includes three parts:

[0026] 1 Determination of the sampling parameters of the electronic nose (type PEN3 from AIRSENSE, Germany)

[0027] Select 250 representative Jiro sweet persimmon samples from the same area and different maturity stages. Use the odor sensor array to measure the response parameters one by one, analyze the response value curve (related to time), and use the "diff" function in the MATLAB2007b scientific computing toolbox to calculate the maximum slope of the response value curve and determine the maximum slope The corresponding time point is 43 seconds when the detection is most stable in this study.

[0028] Select the commonly used elution time (the time to remove the interference process of the previous sample by absorbing clean air): 5s, 10s and 15s for the exp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a method for detecting internal quality of jirou sweet persimmon by a smell sensor, belonging to the technical field of farm product detection. An electronic nose is utilized to collect smell parameters of a collected sample. The volume of a closed container for placing the sample is 150 mL, the best sampling time of the electronic nose is 43 s, and the elution time of the sensor is 10 s. A reading G / G0 output by the electronic nose is substituted in a lossless prediction model of the internal quality of the jirou sweet persimmon so as to obtain hardness Hard 1 and solid-acid ratio of a detected fruit, or G / G0 is substituted in a lossless discriminating model of a grade of the internal quality of the jirou sweet persimmon so as to obtain the grade of the internal quality of the lossless discriminating jirou sweet persimmon. The method can rapidly detect the internal quality of the jirou sweet persimmon in a contactless mode, thereby reducing fruit wastes caused by sampling detection. Simultaneously, aiming at the smell characteristics of the jirou sweet persimmon, modules in the smell sensor are optimized, and an optimal sensor module combination is designed aiming at the jirou sweet persimmon, thereby reducing the operational cost of the smell sensor.

Description

technical field [0001] The invention relates to a method for detecting the internal quality of Jiro sweet persimmon with an odor sensor, and belongs to the technical field of agricultural product detection. Background technique [0002] With the improvement of people's living standards, the consumption of fruits has shifted from focusing on quantity to focusing on quality. At the same time, how to change the status quo of low added value of my country's agricultural products export and generate income for farmers and fruit processing enterprises has become a major issue in fruit circulation, storage and testing in recent years. Most concerned issues. [0003] At present, the total annual persimmon production in the world has exceeded 2 million tons, and it is gradually increasing. Persimmon fruit is rich in VC and moistens the lungs, clears away heat, resolves phlegm, and relieves cough. In addition to eating fresh and making persimmons, it is also a candied fruit for variou...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01N27/12
Inventor 屠康刘鹏
Owner NANJING AGRICULTURAL UNIVERSITY