16000+ watts medigrow: og kush+ 13 x 1kw hps + 3 x t5 badboys + grotek = *HAPPY JOY*

mellokitty

Moderatrix of Journals
apologies in advance, some of these are double posts; just trying to compile some info together... (my highlights)

excerpt from wiki:
Glycerol (glycerin): ...

Applications

This section needs additional citations for verification. Please help improve this article by adding reliable references. Unsourced material may be challenged and removed. (March 2009)
[edit] Food industry

In foods and beverages, glycerol serves as a humectant, solvent, and sweetener, and may help preserve foods. It is also used as filler in commercially prepared low-fat foods (e.g., cookies), and as a thickening agent in liqueurs. Glycerol and water are used to preserve certain types of leaves. As a sugar substitute, it has approximately 27 calories per teaspoon and is 60% as sweet as sucrose. Although it has about the same food energy as table sugar, it does not raise blood sugar levels, nor does it feed the bacteria that form plaques and cause dental cavities. As a food additive, glycerol is labeled as E number E422.
Glycerol is also used to manufacture mono- and di-glycerides for use as emulsifiers, as well as polyglycerol esters going into shortenings and margarine.
It is also used as a humectant (along with propylene glycol labelled as E1520 and/or E422) in the production of snus, a Swedish-style smokeless tobacco product.
As used in foods, glycerol is categorized by the American Dietetic Association as a carbohydrate. The U.S. Food and Drug Administration (FDA) carbohydrate designation includes all caloric macronutrients excluding protein and fat. Glycerin has a caloric density similar to table sugar, but a lower glycemic index and different metabolic pathway within the body, so some dietary advocates accept glycerin as a sweetener compatible with low carbohydrate diets.
[edit] Pharmaceutical and personal care applications

Glycerol is used in medical and pharmaceutical and personal care preparations, mainly as a means of improving smoothness, providing lubrication and as a humectant. It is found in allergen immunotherapies, cough syrups, elixirs and expectorants, toothpaste, mouthwashes, skin care products, shaving cream, hair care products, soaps and water-based personal lubricants. In solid dosage forms like tablets, glycerol is used as a tablet holding agent. For human consumption, glycerol is classified by the U.S. FDA among the sugar alcohols as a caloric macronutrient.
Glycerol is always a component of glycerin soap, which is made from denatured alcohol, glycerol, sodium castorate (from castor), sodium cocoate, sodium tallowate, sucrose, and water. Sometimes one adds sodium laureth sulfate, or essential oils for fragrance. This kind of soap is used by people with sensitive, easily-irritated skin because it prevents skin dryness with its moisturizing properties. It draws moisture up through skin layers and slows or prevents excessive drying and evaporation. It is possible to make glycerol soap at home.
Used as a laxative when introduced into the rectum in suppository or small-volume (2–10 ml)(enema) form; irritates the anal mucosa and induces a hyperosmotic effect.
Topical pure or nearly pure glycerol is an effective treatment for psoriasis, burns, bites, cuts, rashes, bedsores, and calluses. It can be used orally to eliminate halitosis, as it is a contact bacterial desiccant. The same property makes it very helpful with periodontal disease; it penetrates biofilm quickly and eliminates bacterial colonies.
[edit] Botanical extracts

When utilized in 'tincture' method extractions specifically, as a 10% solution, glycerol prevents tannins from precipitating in ethanol extracts of plants (tinctures). It is also used as a substitute for ethanol as a solvent in preparing herbal extractions. It is less extractive when utilized in tincture methodology and is approximately 30% more slowly absorbed by the body resulting in a much lower glycemic load. Fluid extract manufacturers often extract herbs in hot water before adding glycerin to make glycerites.[7][8][9]
When used as a primary true alcohol-free botanical extraction solvent in innovative non-tincture based methodologies, glycerol has been shown, both in literature and through extraction applications, to possess a high degree of extractive versatility for botanicals including removal of numerous constituents and complex compounds, with an extractive power between water and ethanol. Glycerol is a stable preserving agent for botanical extracts that, when utilized in proper concentrations in an extraction solvent base, does not allow inverting or REDOX of a finished extract's constituents over several years. Both Glycerol and ethanol are viable preserving agents. Glycerol is bacteriostatic in its action, and ethanol is bactericidal in its action.[10][11][12]
 

mellokitty

Moderatrix of Journals
A glycerite is a fluid extract of an herb or other medicinal substance made using glycerin as being integral to the fluid extraction medium.

... when glycerin is utilized in a contemporary non-tincturing based innovative processing methodology it has been shown to not only extract a wide range of compounds, it is widely accepted, both in literature and innovative applications, to extract many cnstituents and compounds previously thought not able to do and to extract those constituents and compounds at high concentrations and potency. This includes most alkaloids, glycosides, volatile oils, waxes, resins, gums, balsam, sugars (especially as non-denatured linked and cross-linked polysaccharides), vitamins, and minerals, all with none of the denaturing and inert rendering effects alcohol possesses.[7][8][9]
The high extractive potential for glycerin is due to 'HOW' glycerin is worked in the extraction process, an essential fact not realized and/or understood by early Eclectic medicine studies, and now lost on contemporary herbalists and the alcohol-based herbal products manufacturing industry. From Glycerin versus Alcohol, Concerning Herbal Liquid Extracts, a White Paper by LoR. Caarl Robinson, a Clinical & Formulary Herbalist:
  • Another perquisite for the [xyz] process is that it must contain a high glycerin to water ratio (which varies from herb to herb) that is intended to be an intrinsic part of the proprietary [xyz] processing technology itself, as well as impart a distinctive stabilizing and ‘absolute’ preserving quality...[10]
To preserve the biological viability and synergy of a botanical's extracted constituents glycerin is preferred for extraction of all aromatic-based compounds, including polysaccharides, as it does not denature or render inert these highly complex molecule structures, which though these compounds may retain their aroma/taste quality, any denaturing (as alcohol intrinsically does) will substantially reduce or nullify the therapeutic quality of aromatic-based compounds.[11] The biological viability preserving and synergy sparing effects of glycerin also apply to proteins, vitamins, enzymes and other 'co-factor' constituents that are glycerin extracted from botanicals.
Whereas alcohol is intrinsically a denaturing and inert rendering agent to a botanical's extracted constituent and compounds, glycerin possesses no such denaturing and inert rendering effects on a botanical's extracted constituents and compounds. From both clinical and manufacturing perspectives, this is possibly the most important defining differentiator between alcohol-based made tinctures versus 'true' alcohol-free glycerin-based made Glycerites, that includes: 'actual' levels or degrees of efficacy relative to actual concentrations (i.e. percentages) of constituents and/or constituent group(s) present in a finished tincture and/or Glycerite, now given what has previously been unaddressed concerning the denaturing/inert-rendering weighted factor for alcohol-based tinctures (a Clinical consideration); and the QA/QC related physical properties inherent in and chemically intrinsic to a finished tincture and/or Glycerite as regards inverting, REDOX, precipitation, scaling, novel constituent complexing, etc. (a Manufacturing consideration).
In the herbal products industry, 'Glycerite' is often implied to be Alcohol-Free. This is not always the case. For clarification and 'truth in labeling' within the botanical products industry and to quell rising consumer confusion, an emerging standard has been proposed that defines that:
Only If alcohol is never used at any time in the making of a liquid botanical preparation, or added thereafter, and glycerin is used as the primary extractive solvent, then it is deemed an Alcohol-Free product (glycerite), whereas, if alcohol is used in making a liquid botanical preparation (whether with other solvents, such as glycerin, honey, etc.). at any time, and then the alcohol removed (i.e. post-process), then it is actually not 'Alcohol-Free' per se,' but should instead be designated as 'Alcohol-Removed.'
More ethically inclined liquid botanical products manufacturers who utilize alcohol in making their products are making this distinction in their literature and on product labels (some even not using the term 'Alcohol-Free' anywhere on their product labels to allay confusion) to better conform with this standard. (Consumers are encouraged to determine whether a product is 'true' alcohol-free or merely alcohol-removed before purchasing products that are listed as 'alcohol-free.')
Alcohol-Free (as opposed to alcohol-removed) glycerite products, in which alcohol is never used or added at any time, are highly sought for by those desiring and requiring that no alcohol be used in making products or added thereafter.
 

mellokitty

Moderatrix of Journals
from someone from another forum who wows me with info everytime he posts:

"Technically a sugar alcohol is typically, but not always, defined as any compound that ends in ‘itol’.
(i.e.sorbitol, mannitol, xylitol, etc.)
defining ‘itol’ sugar alcohols also includes that ‘itols’ are typically derived from hydrogenation and are referred to as 'polyols'.

Glycerin is not a polyol (it's a trihydric alcohol) and is not derived from hydrogenation, but from a process known as ‘fractionation’.
....a totally different process altogether which results in a much safer and more natural end product than hydrogenate produced sugar alcohols."
 

mellokitty

Moderatrix of Journals
so.. back to wiki then:

Hydrogenation, to treat with hydrogen, also a form of chemical reduction, is a chemical reaction between molecular hydrogen (H2) and another compound or element, usually in the presence of a catalyst. The process is commonly employed to reduce or saturate organic compounds. Hydrogenation typically constitutes the addition of pairs of hydrogen atoms to a molecule, generally an alkene. Catalysts are required for the reaction to be usable; non-catalytic hydrogenation takes place only at very high temperatures. Hydrogen adds to double and triple bonds in hydrocarbons.

Fractional distillation is the separation of a mixture into its component parts, or fractions, such as in separating chemical compounds by their boiling point by heating them to a temperature at which several fractions of the compound will evaporate. It is a special type of distillation. Generally the component parts boil at less than 25 °C from each other under a pressure of one atmosphere (atm). If the difference in boiling points is greater than 25 °C, a simple distillation is used.

....tbh, that doesn't mean a lot to me .... BUT THEN, it possibly means i can exclude it from this description of 'sugar alcohol':
Sugar alcohols are usually incompletely absorbed into the blood stream from the small intestines which generally results in a smaller change in blood glucose than "regular" sugar (sucrose). This property makes them popular sweeteners among diabetics and people on low-carbohydrate diets. However, like many other incompletely digestible substances, overconsumption of sugar alcohols can lead to bloating, diarrhea and flatulence because they are not absorbed in the small intestine. Some individuals experience such symptoms even in a single-serving quantity. With continued use, most people develop a degree of tolerance to sugar alcohols and no longer experience these symptoms.
 

mellokitty

Moderatrix of Journals
ok, this is a bit redundant, but back to glycerites:

Glycerites are frequently used as a substitute for alcohol in tinctures, as a solvent that will create a therapeutic herbal extraction. When utilized in such a non-critical passive tincture methodology or in a simple hot water extraction methodology, both produce weak glycerites because glycerine is less extractive when utilized in these methodologies. Unlike alcohol, that has quick access to the liver, glycerine is approximately 30% slower absorbed by the digestive tract and is utilized through a secondary pathway in the liver (known as the 'gluconeogenic' pathway) resulting in a lower glycemic load on the body than happens with alcohol.
 

mellokitty

Moderatrix of Journals
nyoinked this here recipe from greenpassion.org (but i prefer my oven to the crockpot)

Glycerine-based Tincture
You need to use food grade U.S.P glycerine, this can be relatively hard to find inexpensively but a gallon lasts a LONG time.

Glycerines have a shorter shelf life than alcohol based tinctures and while they can sit on the shelf I refrigerate mine. Vegetable glycerine has nearly no impact on blood sugar or insulin and is very low in calories (4.3 per gram). It's sweet taste makes the tincture more palatable than the alcohol based tincture and is a suitable substitute for those concerned with alcohol consumption.

Add the amount of cannabis that you desire for potency. I added 6 oz of roughly trimmed (finger trimmed the leaves off) cannabis to 1 gallon of glycerine. For your personal preference add more cannabis or less depending on desired potency. I blend mine, using a coffee grinder, blender or if you are lucky enough to have a Vita Mix. Make sure there is no other product matter in whatever you use. I use a clean basting brush to clean out my Vita Mix when I am done powdering my cannabis.

Place in a crockpot on low. Some crockpot's low settings are too high so you may not be able to use yours. A "Keep Warm" setting if you have it is the best choice. Too hot, and you are killing the properties you are trying to extract, you want the mixture to be as warm as possible without boiling, I left my tincture like this for 24 hours. I have heard people leaving the tincture from anywhere from 4-6 hours to 3 days. You can try the tincture at intervals to decide when you are done. REMEMBER that glycerine tincture retains heat VERY WELL, do not burn yourself!!

If you do not have a crockpot you can place the herbs in a clear, sealed jar in a warm, sunny spot and accomplish the same thing over 4 weeks. Some people make their "sunshine tinctures" over 2 weeks. I do not feel that is long enough, especially in colder weather. Some leave them in the sun for up to 12 weeks. I have never seen a need to go that long myself. Shake each day to mix the herbs in.

When ready to strain use cheesecloth and a strainer to extract the cannabis debris, the THC has been extracted and the tincture is ready to use. The best way to store is in a glass amber bottle. A good place to obtain a large bottle for the bulk of your tincture is a brewery store that has supplies to make wine or beer. I also obtained a few small amber bottles with eye droppers for convenience. It takes a lot longer to strain glycerine than it does alcohol, the tincture will drip when strained instead of flow.
 

mellokitty

Moderatrix of Journals
which brings us to my most recent experimentations:

i used:
3oz of good shake from a trim machine (munched up nice with lots of sugar) (dry; about a year old give or take so naturally decarbed to an extent already) to
250 mls of glycerin usp. in a 500ml mason jar. put it in the oven on 'warm' (between 90 and 120 degs at our house) for 24hrs.

let it cool so it's warm enough to be runny but not too hot to play with, get out the old potato ricer for a good old-time squeeze.

the math:
84g canna / 250ml glyc = 0.336g canna/ml

ended up recouping pretty much about 250ml with the potato ricer (and then through a tea strainer to get the strays). it's like medium grade maple syrup to look at, slightly opaque. i call this the 'first run'. (i suppose this would be a 'true glycerite'.)

i took the resulting plant matter (which was still all sticky with glycerin), added 250ml of passionfruit vodka, gave it a good vigorous shake, squeezed the crap out of that for a 'second run'; all i can smell out of my compost bucket after a day is passionfruit, no canna, so i'm pretty sure i got it all. i call this the 'vodka wash'.

i'm curious to know how strong the vodka wash is; might have to drop a vial on one of my ex-bartending colleagues, let them find me guinea pigs or be some themselves mwa ha ha ha~.

as i understand it, glyc is a room temp stable preservative down to a 70% concentration, so i *should* be able to cut the first run product with 30% distilled water to get

1ml = 0.223 g shake's worth of active ingredient.

...which is a more reasonable dosage anyway. (again, *should*. theoretically, as i haven't tried that part yet and would need some time to see if it goes rancid etc.)

wish there were a way i could do the math on the vodka wash, though... (hint: i took it with me to ladies' night this weekend and the girls LOVED it...
a mL in their margaritas and they were *happy*)
 

kevin murphy

New Member
[video]www.youtube.com/watch?v=iB9rgGrAomY[/video][video]www.youtube.com/watch?v=4dloPF1QDuw[/video][video]www.youtube.com/watch?v=BH6AQtZ6FiQ[/video]
 

Dubbz0r

Well-Known Member
supplemental Co2 during flowering only? old school :) thats the way i like to run it, i dont really see to much of a benefit during veg.
I did the same. No c02 during veg and my controller still read 500-800ppm's. It could have something to do with me being in the room every hour lol. Now I'm in the middle of flower week 3 and I'm blasting 2000ppm. I started out with 1500 and changed it today since the temp has been rising. That may be too high but as long as they have more than enough I'll be happy.

Edit: Hey mellokitty, I was curious if you've ever ran MH and HPS together during flower and if so what were the results?
 
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