US 10,471,113 B1Granted

Producing cannabis extracts via selective decarboxylation

AssigneeJenny's Rose, LLC

InventorJames Castillo

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Abstract

The present invention is a process for producing various types of cannabis extract from harvested cannabis. A quantity of harvested cannabis, which typically includes the inflorescence, floral leaves, and small stems of a flowering cannabis plants, is pre-frozen. The harvested cannabis is first subjected to cryogenic grinding to produce pulverized cannabis. The pulverized cannabis is then subjected to alcohol extraction to produce an initial cannabis extract, which can be subjected to one of several forms of further processing according to the desired chemical profile of the final product. The initial cannabis extract may then be subjected to chemical processing that promote the conversion of THCA to Δ9 THC; the conversion of THCVA to THCV; the conversion of THCA to cannabinol (“CBN”); or the conversion of THCA to Δ8-THC.

Claims2

Dependent claims

A method of producing a refined, decarboxylated cannabis extract consisting essentially of:

a) freezing a quantity of cannabis to make frozen cannabis;
b) grinding the frozen cannabis at cryogenic temperatures to produce pulverized cannabis;
c) extracting the pulverized cannabis with a quantity of alcohol;
d) separating the alcohol from the pulverized cannabis to obtain an initial cannabis extract;
e) diluting the initial cannabis extract with a quantity of alcohol to produce a first diluted initial cannabis extract;
f) adding a quantity of water to the first diluted initial cannabis extract to produce a second diluted initial cannabis extract;
and
g) refluxing the second diluted initial cannabis extract at a temperature of about 80° C.-120° C. for a period of about 1-3 hours whereby the second diluted initial cannabis extract is decarboxylated to produce the refined, decarboxylated cannabis extract.

5 more elements

Dependencies are inferred from the claim text.