Method for detecting content of soluble solids in strawberries based on near-infrared reflectance spectroscopy

A technology of solid content and near-infrared spectroscopy, which is applied in the field of strawberry quality determination, can solve the problems of cumbersome detection steps, inability to quickly detect strawberry quality, and high cost

Inactive Publication Date: 2016-11-16
SHENYANG AGRI UNIV
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Problems solved by technology

The results of sensory evaluation are highly subjective and poor in stability; although the results of physical and chemical analysis are objective and credible, the detection steps are cumbersome, time-consuming and expensive. Neither of these two methods can meet the needs of rapid quality detection in the production, processing and trade of strawberries.

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  • Method for detecting content of soluble solids in strawberries based on near-infrared reflectance spectroscopy
  • Method for detecting content of soluble solids in strawberries based on near-infrared reflectance spectroscopy
  • Method for detecting content of soluble solids in strawberries based on near-infrared reflectance spectroscopy

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[0037] The present invention uses the USB2000+visible / near-infrared spectrometer produced by the Ocean Optics Corporation of the United States to synthesize the aforementioned inventive methods and requirements, and extract the spectra of the test set and the prediction set samples respectively; / T 5009.1-2003, 2001) For the determination of strawberry soluble solids, the present invention applies Taiwan LINK portable RHB-080 type handheld refractometer;

[0038] A method for detecting soluble solid content in strawberries based on near-infrared spectral analysis technology, comprising the steps of:

[0039] 1) The strawberries picked in the same picking period in the same year were selected as the material (in line with the normal distribution law of the strawberry population). In order to enrich the representativeness of the samples, strawberry samples with no obvious defects on the surface and uniform color were selected uniformly, and the diameter range of 60-100mm was sele...

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Abstract

The invention discloses a method for detecting the content of soluble solids in strawberries based on the near-infrared reflectance spectroscopy. The method includes the steps of firstly, conducting near-infrared spectrum scanning on a strawberry standard product with the known content of soluble solids; secondly, preprocessing an obtained calibration set sample spectrum; thirdly, conducting main component analysis, and extracting characteristic information data; fourthly, establishing a calibration model; fifthly, measuring the straw sample with the unknown content of soluble solids, wherein the obtained characteristic information data is input to the calibration model in the fourth step to obtain the content of soluble solids in the to-be-measured strawberry sample. The method has the advantages of being high in analysis speed, high in analysis efficiency, free of chemical reagents, low in analysis cost, free of pollution to the environment and the like, and can provide reliable basis for the analysis of the strawberry quality and the control over the strawberry quality and product quality.

Description

technical field [0001] The invention relates to a strawberry quality measurement technology, in particular to a method for detecting the content of soluble solids in strawberries based on a near-infrared spectrum analysis technology. technical background [0002] Strawberry is a general term for plants of the Rosaceae Fragaria genus, which originated in Europe and was introduced into my country in the 20th century. Strawberries are rich in nutrients and contain fructose, sucrose, citric acid, malic acid, salicylic acid, soluble solids, calcium, phosphorus, iron and other minerals. In addition, it also contains a variety of vitamins, especially vitamin C content is very rich, every 100 grams of strawberries contain 60 mg of vitamin C. The carotene contained in strawberries is an important substance for the synthesis of vitamin A, which has the effect of improving eyesight and nourishing the liver. Strawberries also contain pectin and rich dietary fiber, which can help diges...

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Application Information

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IPC IPC(8): G01N21/359
CPCG01N21/359
Inventor 宁晓峰宫元娟刘玉凤裴军强田素博冯雨龙来佑彬
Owner SHENYANG AGRI UNIV
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