Method of producing organic certified glycerin
AssigneeDraco Natural Products, Inc.
InventorsJerry Wu, Brien Quirk, Tian X. Wang
Life of this patent
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Abstract
A process for the production of naturally and organically fermented glycerin includes cleaning and sanitizing of the fermentation equipment prior to fermentation without using any traditional synthetic organic hydrocarbon-based chemicals. The fermentation process uses a non-chemical nutrient and nitrogen source from natural proteins during the fermentation to reduce trace amounts of toxins or contaminants. A purification stage following the fermentation process increases the purity of the glycerin to a desired level.
Claims34
A method of making organic certified grade glycerin, comprising:
- cleaning all parts of a fermentation apparatus in a plurality of successive cleaning steps in which a cleaning solution is circulated through the fermentation apparatus repeatedly for a predetermined time period;
- the cleaning steps comprising at least circulation of water or steam through the apparatus, and circulation of at least one of an alkaline solution, an acidic solution, and sodium hypochlorite through the apparatus;
- introducing a natural glucose source into the fermentation apparatus;
- hydrolyzing the glucose source to produce sugar;
- filtering the hydrolyzed glucose source to produce glucose syrup;
- fermenting the glucose syrup with a seeding material comprising a selected natural yeast to produce a glycerin/syrup mixture;
- filtering the glycerin/syrup mixture to separate glycerin liquid from syrup residue;
- and
- further concentrating the separated glycerin liquid to produce a purity level corresponding to a selected grade of organic glycerin.
A method for the production of organic glycerin by fermentation comprising:
- a first fermentation phase comprising oxygenated fermentation of a fermentation medium comprising glucose syrup and a naturally occurring yeast in a bioreactor at a temperature of 28-40° C. with a stirring speed of 90-200 rpm for 80-120 hours;
- and
- a second fermentation phase comprising anaerobic fermentation of the fermentation product of the first phase to reduce glucose, the second fermentation phase comprising pumping out air from the bioreactor is pumped out to produce a vacuum and running the fermentation process at a temperature range of 30-38° C. for 24-48 hours to produce a post fermentation broth.
A method for the production of organic glycerin, comprising:
- conducting a first fermentation phase comprising oxygenated fermentation of glucose syrup with a naturally occurring yeast in a bioreactor at a temperature of 28-40° C. with a stirring speed of 90-200 rpm for 80-120 hours;
- monitoring the level of glucose in the fermentation fluid;
- when the level of glucose in the fermentation fluid is less than 4% by weight, adding Corynebacterium into the bioreactor and continuing the fermentation at a temperature range of 32 to 38° C. for six to twelve hours until the level of residual glucose is reduced to less than 0.5% by weight.
A method for the production of organic glycerin, comprising:
- fermenting a glucose syrup produced from a natural glucose source to produce a glycerin liquid containing a trace amount of glucose;
- heating the glycerin liquid to 100-135° C. in a first distillation column to remove water, alcohol, and organic acids and produce concentrated glycerin;
- and
- heating the concentrated glycerin in a reboiler to a temperature of 140 to 180° C. and directing the resultant vapor of the glycerin fluid into a second distillation column under a vacuum less than 60 mmHg to further concentrate the glycerin.
A method for the production of organically certifiable glycerin, comprising:
- cleaning all parts of a fermentation apparatus in a plurality of successive cleaning steps including at least one step of circulation of water or steam through the apparatus, the cleaning steps using no synthetic hydrocarbon based chemicals;
- producing a glucose syrup from a naturally occurring protein source;
- fermenting the glucose syrup with a seeding material comprising Candida krusei yeast to produce a glycerin/syrup mixture;
- filtering the glycerin/syrup mixture to separate glycerin liquid from syrup residue;
- and
- further concentrating the separated glycerin liquid to produce a purity level corresponding to a selected grade of organic glycerin.
An organic cosmetic, food, dietary supplement or pharmaceutical composition, comprising a mixture of compounds including glycerin in the range from 3% to 81% by weight, the glycerin being certified as organic by an organic certification organization.
Dependencies are inferred from the claim text.