An apparatus for measuring the starch content of vegetables

By integrating a near-infrared light source array and a miniature spectral sensor, the problems of high destructiveness and high cost in the measurement of vegetable starch content in existing technologies have been solved, realizing a non-destructive, rapid, and low-cost method for measuring vegetable starch content, which is suitable for the detection of tuberous vegetables.

CN224471547UActive Publication Date: 2026-07-07HEILONGJIANG ZHONGLAN FOOD CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEILONGJIANG ZHONGLAN FOOD CO LTD
Filing Date
2025-06-09
Publication Date
2026-07-07

AI Technical Summary

Technical Problem

Existing methods for measuring starch content in vegetables are destructive, cumbersome, and costly. In particular, chemical methods require the destruction of samples, require expensive specialized equipment, and can only measure total soluble solids, failing to distinguish starch from other components.

Method used

The system uses a near-infrared LED light source array to irradiate vegetables, utilizing near-infrared light in the 1450-1600nm band to penetrate the vegetable skin. Combined with a miniature spectral sensor and an ARM processor, it performs non-destructive testing and is integrated into a pistol-shaped housing. It supports LoRa and Bluetooth dual-mode transmission, enabling rapid and low-cost starch content measurement.

Benefits of technology

It enables non-destructive, rapid, and low-cost measurement of starch content in vegetables, distinguishing starch from other components. The equipment is lightweight and portable, making it suitable for the detection of tuberous vegetables.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention belongs to the field of starch content measurement technology and discloses a device for measuring the starch content of vegetables. It includes a near-infrared LED light source array, a miniature spectral sensor, an ARM processor, and a touch screen. It also includes a pistol-shaped housing. The near-infrared LED light source array, miniature spectral sensor, ARM processor, and touch screen are located at the front end of the pistol-shaped housing. A battery compartment is located at the rear end of the pistol-shaped housing, housing a removable rechargeable lithium battery for providing power. A disassembly compartment is located at the bottom of the pistol-shaped housing, within which a sample chamber is detachably mounted via a magnetic structure. The sample chamber contains a diffuse reflective ceramic plate for detecting tuberous vegetables. A communication module, located within the pistol-shaped housing, is also included for transmitting measurement data and synchronizing it to a mobile terminal. The communication module supports LoRa and Bluetooth dual-mode transmission. This invention uses near-infrared light of a specific wavelength to penetrate the vegetable epidermis, eliminating the need for slicing / grinding, thus achieving non-destructive testing.
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