Dictionary » G » Glycerol



noun, plural: glycerols

(1) A colorless, odorless, viscous metabolic intermediate and structural component of the major classes of biological lipids, triglycerides and phosphatidyl phospholipids.

(2) 1,2,3-trihydroxy-propane or propan-1,2,3-triol; a trihydric alcohol derived from saponification of fats and oils.


For human consumption, glycerol is classified by the FDA among the sugar alcohols as a caloric macronutrient. It is used as antifreeze, a plasticizer, and a food sweetener and in the manufacture of dynamite, cosmetics etc.

Also called: glycerin or glycerine

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Re: Food to ATP energy?

... production). - It should be noted that not all molecules of glucose are used in ATP production. Some are used to produce lactic acid, glycogen, glycerol, fat, and I'm sure there are other metabolites that I'm not thinking of. When glucose is consumed in excess (eating more calories than you ...

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by tmbirkhead
Thu Aug 14, 2014 1:11 am
Forum: Cell Biology
Topic: Food to ATP energy?
Replies: 2
Views: 5963

When does gluconeogenesis kick in during physical activity?

... are used only as a last resort, even though they specified a few pages before that the main substrate for GNG is alanine (followed by lactate and glycerol). So there HAS to exist some factor that apparently delays GNG other than the aforementionned hormones, otherwise both metabolisms would start ...

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by Aymeric
Fri Dec 13, 2013 10:35 am
Forum: Human Biology
Topic: When does gluconeogenesis kick in during physical activity?
Replies: 12
Views: 10437

Plasimd prep from frozen cells

... read in a protocol that that it is possible to extract plasmid from frozen cells using a kit? How would one do use frozen cells? Would you take a glycerol stock, thaw it out, spin it and use pellet?

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by biology_06er
Fri Mar 29, 2013 1:04 am
Forum: General Discussion
Topic: Plasimd prep from frozen cells
Replies: 1
Views: 1209

Problems making chemically competent cells

... MnCl2•4H2O (50mM) 0.998g Potassium acetate (30mM) 3ml (1M stock pH 7.5, 9.814g in 100ml solution, pH with acetic acid) CaCl2•2H2O (10mM) 0.15g Glycerol (15% w/v) 15g Final pH: 5.8 with dilute acetic acid. Don’t overshoot – if you do, start again RF2 Compound (end concentration) Amount for 100ml ...

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by lilruthc
Fri Feb 08, 2013 1:09 pm
Forum: Molecular Biology
Topic: Problems making chemically competent cells
Replies: 1
Views: 3639

DNase I stability

Does anyone know exactly how long DNase I stays active, when stored in 50% glycerol and in -20C (kept in liquid form to avoid freeze/thaw cycles)? Some supplier stated that their product is guaranteed to have activity > 90% after 6 months, but others simply ...

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by biohazard
Tue Nov 06, 2012 9:30 am
Forum: Molecular Biology
Topic: DNase I stability
Replies: 1
Views: 1971
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