Method for preparing cannabis and hemp extracts using subcritical fluid technique.

TH28424UActive Publication Date: 2026-07-01สำนักงานพัฒนาการวิจัยการเกษตร (องค์การมหาชน) +1
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
TH2103002525
Authority / Receiving Office
TH · TH
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2021-08-19
Publication Date
2026-07-01
Estimated Expiration
2027-08-18
Patent Text Reader

Abstract

OCR 23 / 07 / 2567 The subcritical fluid technique for preparing cannabis and hemp extracts is a method for preparing extracts that... Cannabinoids were extracted from the leaves and flower clusters using liquid dimethyl ether under subcritical conditions, employing cannabis raw materials. Alternatively, use dried hemp fibers, grind them finely, then add 1-10 parts liquid dimethyl ether and / or a co-solvent. Add no more than 30% by volume of liquid dimethyl ether and extract the cannabis or hemp powder sample for 10 minutes. 60 minutes at 30-60 degrees Celsius, pressure 6.5-12 bar, with a stirring speed of 200-1000 revolutions per minute. (rpm) When the extraction time is complete, the extracted substance is released from the extractor. The solvent evaporates from the substance. Extract immediately at room temperature. The resulting extract will be green in color and contain a total cannabinoid content of more than 100%. 5. By mass of plant powder, this extraction process will increase the economic potential for further development into... Industrial-scale extraction processes are available.
Need to check novelty before this filing date? Find Prior Art

Claims

OCR 23 / 07 / 2567 1. The process for preparing cannabis and hemp extracts using subcritical fluid dynamics involves the following steps: A. Take the cannabis or hemp raw materials, such as the leaves and flower buds, and dry them using oven drying or air drying. B. Take the dried cannabis or hemp raw materials from step A and grind them into a fine powder. C. Weigh one part of the cannabis or hemp powder sample and place it in a filter paper tube or other container in the extraction tank. Then... Add 1-10 parts liquid dimethyl ether and / or add a co-solvent not exceeding 30 percent by volume. Liquid dimethyl ether d. Extract the cannabis or hemp powder sample for 10-60 minutes at a temperature of 30-60 degrees Celsius and pressure... 6.5-12 bar with a stirring speed of 200-1000 revolutions per minute (rpm). DD / MM ... Extract immediately at room temperature; the resulting extract will be green in color.