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US 12,514,889 B2Granted
Oxalic acid or oxalate free Inonotus obliquus extract and uses thereof
AssigneeThe Better for You Company, LLC
InventorsRichard M. Funk, Aaron Lopes
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Abstract
Provided herein are methods for preparing Inonotus obliquus (chaga mushroom) extracts that are substantially free of oxalic acid or oxalate, and to food products containing such extracts.
Claims27
A method for preparing an Inonotus obliquus (chaga mushroom) extract, the method comprising:
- (a) extracting a chaga mushroom solid with a first solvent to produce a crude chaga mushroom extract, wherein the chaga mushroom solid is extracted at an elevated temperature of about 85° C. to about 95° C. for about 6 hours to about 24 hours;
- (b) extracting the crude chaga mushroom extract with a second solvent, wherein the crude chaga mushroom extract is extracted at an elevated temperature of about 85° C. to about 95° C. for about 6 hours to about 24 hours;
- (c) adding a salt of an alkaline earth metal to the crude chaga mushroom extract and the second solvent to precipitate an oxalic acid and/or oxalates from the crude chaga mushroom extract;
- and
- (d) filtering the oxalic acid and/or oxalate precipitate out of the crude chaga mushroom extract to obtain a filtered chaga mushroom extract, wherein the filtered chaga mushroom extract is substantially free of oxalic acid and/or oxalates, and wherein the filtered chaga mushroom extract has an oxygen radical absorbance capacity (ORAC) of at least 60,000 mM Trolox equivalents per 100 grams.
2 more elements
A method for preparing an Inonotus obliquus (chaga mushroom) extract, the method comprising:
- (a) extracting a chaga mushroom solid with a first solvent to produce a crude chaga mushroom extract, wherein the chaga mushroom solid is extracted at an elevated temperature of about 85° C. to about 95° C. for about 6 hours to about 24 hours;
- (b) extracting the crude chaga mushroom extract with a second solvent comprising a salt of an alkaline earth metal to precipitate an oxalic acid and/or oxalates from the crude chaga mushroom extract, wherein the crude chaga mushroom extract is extracted at an elevated temperature of about 85° C. to about 95° C. for about 6 hours to about 24 hours;
- and
- (c) filtering the oxalic acid and/or oxalate precipitate out of the crude chaga mushroom extract to obtain a filtered chaga mushroom extract, wherein the filtered chaga mushroom extract is substantially free of oxalic acid and/or oxalates and wherein the filtered chaga mushroom extract has an oxygen radical absorbance capacity (ORAC) of at least 60,000 mM Trolox equivalents per 100 grams.
1 more element
Dependencies are inferred from the claim text.