Method for extracting schaftoside and indole alkaloid by taking alocasia macrorrhiza and like as raw materials

A technology of indole alkaloids and alkaloids, applied in chemical instruments and methods, sugar derivatives, sugar derivatives, etc., can solve the problems of quantitative and equivalence of the composition of alocasia japonica and schaffeta glycosides in the study of calla lily leaves. To achieve the effect of simple method, high extraction rate and sufficient raw materials

Pending Publication Date: 2021-10-22
NANJING NORMAL UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the study did not quantify and verify the content of its schiaftoside components, nor did it study the leaves of calla lily (Huang Wenjie. Active ingredient research of calla lily [D]. Guangdong Pharmaceutical University, 2017)

Method used

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  • Method for extracting schaftoside and indole alkaloid by taking alocasia macrorrhiza and like as raw materials
  • Method for extracting schaftoside and indole alkaloid by taking alocasia macrorrhiza and like as raw materials
  • Method for extracting schaftoside and indole alkaloid by taking alocasia macrorrhiza and like as raw materials

Examples

Experimental program
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Effect test

Embodiment 1

[0027] 100kg of raw material of calla lily tuber, after long frying for 1h, add ethanol solution with a volume concentration of 60% according to the solid-liquid ratio of 1:50 (w / w), extract under ultrasonic-assisted extraction for 30min, and obtain 3kg of extract after solid-liquid separation. D101 resin separation obtained 810 g of schaftosides with a purity of 95%.

Embodiment 2

[0029] Add 100kg of calla lily tuber raw material, add ethanol containing citric acid, extract under ultrasonic-assisted extraction for 30 minutes according to the solid-liquid ratio of 1:50 (w / w), obtain the extract of indole alkaloids after separation, and recover the solvent to obtain the extract , through the D101 resin, the indole alkaloids were isolated.

Embodiment 3

[0031] 2000g of calla lily leaf raw material, after long-term frying for 1h, add ethanol solution with a volume concentration of 60% according to the solid-liquid ratio of 1:100 (w / w), heat and reflux for extraction for 30min, and obtain the extract of schaftoside through solid-liquid separation, The solvent was recovered to obtain 2.8 kg of extract, which was separated by D101 column to obtain 15.4 g of schaftoside with a purity of 90%.

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Abstract

The invention discloses a method for extracting schaftoside and indole alkaloid by using alocasia plants as raw materials, which comprises the following steps: pretreating each part of alocasia macrorrhiza, conducting repeated extracting by using a solvent, performing auxiliary extraction, concentrating and extracting the obtained extract liquor, and performing column chromatography to obtain the schaftoside and indole alkaloid. The content of schaftoside in raw material plants used in the method is rich, the extracted schaftoside is more than that of traditional raw materials including desmodium styracifolium and abrus mollis, the biomass of the raw materials is larger, resources are sufficient, the cost is low, the extraction efficiency is high, and mass production can be achieved.

Description

technical field [0001] The invention relates to a method for extracting chemicals, in particular to a method for extracting schiaftosides and indole alkaloids from plants of the genus Alocasia. Background technique [0002] The Alocasia plant (Alocasia) described in the present invention is the general name of the perennial herbaceous plants of Araceae, and there are more than 80 kinds of the whole genus, such as Alocasia macrorrhizos, Alocasia longiloba, Alocasiacucullata, Alocasia hainaica, Alocasia acuminata、Alocasiaaewuiloba、Alocasia alba、 Alocasia arifolia、Alocasia atropurpurea、Alocasiaaugustiana、Alocasia baginda、Alocasia balgooyi、Alocasia beccarii、Alocasia boa、Alocasia boyceana、Alocasia brancifolia、Alocasia brisbahensis、Alocasiacadieri、Alocasia celebica、Alocasia clypeolata、Alocasia culionensis、 Alocasiacuprea、 Alocasia decipiens、Alocasia decumbens、Alocasia devansayana、Alocasiafallax、Alocasia flabellifera、Alocasia flemingiana、Alocasia fornicata、Alocasiagageana、 Alocasia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C07H17/07C07H1/08C07D209/08
CPCC07H17/07C07H1/08C07D209/08
Inventor 陈育如刘超王鸿飞王屹东钱者东方浩
Owner NANJING NORMAL UNIVERSITY
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