Study on the Correlation between the Appearance Characteristics and Content of Characteristic Components of Gastrodia elata f.glauca
In order to investigate the relationship between the appearance traits and the content of characteris-tic components of Gastrodia elata f.glauca,this study was carried out by collecting the fresh products of Gastrodia elata f.glauca from the main production areas in Guizhou and Shaanxi,and determining its length,width,thickness,and mass,using electronic sensory instruments to determine the characteristic values of the samples'traits such as color,gas,and taste,and using high performance liquid chromatography to de-termine the content of the main active ingredients in the samples.The results showed that there was a certain correlation between the characteristic values of the shape,color,gas,taste of G.elata f.glauca and the con-tent of its characteristic components.The tuber thickness was extremely positively correlated with the con-tents of gastrodin,P-hydroxybenzyl alcohol and parishin;the color value a*of powder was extremely nega-tively correlated with the content of gastrodin.L* and Eab* were significantly negatively correlated with the content of P-hydroxybenzyl alcohol.The content of P-hydroxybenzyl alcohol was extremely positively corre-lated with the CTS(salty)and ANS(sweet)response values of the electronic tongue,significantly or ex-tremely significantly negatively correlated with the electronic nose LY-type response value,and significantly or extremely significantly positively correlated with the T-type and P-type response values.The research re-sults can provide reference for the quality evaluation of G.elata f.glauca.
Gastrodia elata f.glaucacharacteristic traitsactive ingredientscolorelectronic tongueelec-tronic nose