Technology for classifying biochemical fingerprint spectrums of Gastrodia elata Blume and identifying quality of Gastrodia elata Blume
A fingerprint and quality identification technology, applied in the field of biochemical fingerprint classification, quality identification and evaluation of Gastrodia elata, can solve the problems of low gastrodin content, lack of practicability, and few biochemical components of Gastrodia elata, and achieves clear spectrum and large peak area. , the effect of high sensitivity
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Embodiment 1
[0051] Embodiment 1: The present invention is used for measuring the biochemical fingerprint of various Gastrodia elata:
[0052] The fresh Gastrodia elata samples were steamed, dried, ground into powder by traditional methods, passed through an 80-mesh sieve, and dried in a drying oven at 80°C for 1 hour. Accurately weigh 1 g of Gastrodia elata powder with an electronic balance, put it in a conical flask, and add 70% ethanol solution. Connect the triangular flask to a Soxhlet extractor, reflux it in hot water at 97°C for 20 minutes, and treat it with a JY92-2D ultrasonic cell disruptor for 25 minutes (sonication for 9 seconds; pause for 2 seconds; amplitude power 250w). Weigh after sonication, and replace the lost weight with 70% ethanol solution. Repeat the above process once. The extract solution was filtered with filter paper. The filtrate was collected, evaporated, concentrated and dried, and fixedly dissolved to 10 ml with 10% acetonitrile solution (mobile phase). Af...
Embodiment 2
[0053] Embodiment 2, the present invention is used for Gastrodia elata classification
[0054] By determining the biochemical fingerprint of Gastrodia elata samples, as described above. Then, Gastrodia elata was classified according to the shape features and the presence or absence of characteristic peaks in the biochemical fingerprints of Gastrodia elata. According to the biochemical fingerprint characteristics of the above nine species of Gastrodia elata, they can be divided into three categories:
[0055] Class I includes Gastrodia elata standard products, Shimen in Hunan, Yichang in Hubei, Dabie Mountain in Anhui, Dafang in Guizhou, Lueyang in Shaanxi, Chayutian in Tibet, and Gastrodia elata in Changbai Mountain in Jilin. The biochemical fingerprint characteristics of this group of Gastrodia elata are: the separation peak of gastrodin is higher than the separation peaks of all other components.
[0056] Class II includes Yunnan Yiliang Gastrodia elata. The fingerprint ch...
Embodiment 3
[0059] Embodiment 3, the present invention is used for the identification and evaluation of Gastrodia elata quality
[0060] According to the active ingredient gastrodin peak area of Gastrodia elata samples, the formula of the present invention is used to calculate the average content of gastrodin in various Gastrodia elata samples (see Table 1).
[0061] The average gastrodin content of the 19 kinds of Gastrodia elata samples and the average peak area sum of all biochemical components
[0062]
[0063] *HY=Hubei Yichang Gastrodia, HS=Hunan Shimen Gastrodia, SHL=Shaanxi Lueyang, GD=Guizhou Dafang Gastrodia, AD=Anhui Dabie Mountain Gastrodia, XC=Tibet Chayu Gastrodia, SL=Sichuan Liangshan Gastrodia, JC=Jilin Changbaishan Gastrodia, YY = Yunnan Yiliang Gastrodia elata.
[0064] Gastrodia elata samples from Yichang, Hubei and Shimen, Hunan contain the highest gastrodin, reaching 7.519mg / g and 7.225mg / g respectively, and the contents of other components are also high (calcul...
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