Method for measuring content of zeaxanthin dipalmitate in barbary wolfberry fruits based on barbary wolfberry fruit skin color values

A technology of zeaxanthin and palmitate, applied in the direction of color/spectral characteristic measurement, measurement device, instrument, etc., can solve the problems of unsurmountable, complicated extraction steps, and organic solvent damage to human body, etc., and achieve the effect of simple method

Inactive Publication Date: 2018-05-15
WOLFBERRY ENG RES INST NINGXIA ACADEMY OF AGRI & FORESTRY SCI
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Problems solved by technology

[0004] At present, there is no method for estimating the content of wolfberry zeaxanthin dipalmitate, mainly through extraction with organic solvents such as petroleum ether, acetone, tetrahydrofuran, diethyl ether, n-hexane, etc., and then using high performance liquid chromatography for content detection. Not only the extraction steps are cumbersome, but also Organic solvents are more harmful to the human body during operation
There is currently no way to overcome this defect

Method used

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  • Method for measuring content of zeaxanthin dipalmitate in barbary wolfberry fruits based on barbary wolfberry fruit skin color values

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Embodiment 1

[0023] Embodiment one: a kind of method for measuring the content of wolfberry zeaxanthin dipalmitate based on the color value of wolfberry skin comprises the following steps:

[0024] Step 1. Collect the color data of wolfberry skin:

[0025] 1) Select 9 common wolfberry varieties and randomly collect their mature wolfberry fruits;

[0026] 2) Use a spectrophotometer to measure the color value of the wolfberry skin. Before the measurement, use a white calibration tile to calibrate the instrument. During the measurement, 5 fruits are randomly selected for each wolfberry sample, and the color values ​​at two points on the center axis of the fruit surface are measured to obtain L, a , b value;

[0027] 3) Calculate the skin saturation c value and chromaticity angle h value of wolfberry according to the formulas (1) and (2),

[0028] (1);

[0029] (2) .

[0030] Step 2, measure the content of zeaxanthin dipalmitate in the above-mentioned Lycium barbarum fruit:

[0031]...

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Abstract

The invention relates to a method for measuring the content of zeaxanthin dipalmitate in barbary wolfberry fruits, in particular to a method for measuring the content of the zeaxanthin dipalmitate inthe barbary wolfberry fruits based on barbary wolfberry fruit skin color values. The method includes the steps: firstly, measuring the surface brightness L, the red chromaticity a and the yellowness index of the barbary wolfberry fruits; secondly, calculating the saturation value c and the chromaticity angle h of barbary wolfberry fruit skins; finally, performing SPSS (statistic package for socialscience) linear fitting to obtain the content of zeaxanthin dipalmitate. The method is simple, convenient and unique and can be used for rapidly measuring the content of the zeaxanthin dipalmitate inthe barbary wolfberry fruits.

Description

technical field [0001] The invention relates to a method for measuring the content of wolfberry zeaxanthin dipalmitate in wolfberry, in particular to a method for measuring the content of wolfberry zeaxanthin dipalmitate based on the color value of wolfberry skin. Background technique [0002] Lycium barbarum is a precious Chinese herbal medicine and tonic. "Shen Nong's Materia Medica" records: "Long-term use of wolfberry can strengthen muscles and bones, resist cold and heat, lighten body and not grow old, and is the top grade in traditional Chinese medicine." Moisturizing, nourishing in nature, can invigorate the kidneys, moisten the lungs, generate essence, and replenish qi. Lycium barbarum carotenoids are one of the important active ingredients in wolfberry. They have the functions of preventing age-related macular degeneration, anti-oxidation, anti-tumor, and improving vision. They are also added to food as pigments and antioxidants. The content of carotenoids in wolfb...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/31G01N30/02
CPCG01N21/31G01N30/02
Inventor 曹有龙闫亚美米佳禄璐罗青李晓莺李越鲲刘兰英安巍张曦燕石志刚
Owner WOLFBERRY ENG RES INST NINGXIA ACADEMY OF AGRI & FORESTRY SCI
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