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an ester or salt of lactic acid


A salt or ester of lactic acid (CH3CHOHCOOH). In lactates, the acidic hydrogen of the carboxyl group has been replaced by a metal or an organic radical. Lactates are optically active, with a chiral center at carbon 2. Commercial fermentation produces either the dextrorotatory (R) or the levorotatory (S) form, depending on the organism involved. See Optical activity

The R form of lactate occurs in blood and muscle as a product of glycolysis. Lack of sufficient oxygen during strenuous exercise causes enzymatic (lactate dehydrogenase) reduction of pyruvic acid to lactate, which causes tiredness, sore muscles, and even muscle cramps. During renewed oxygen supply (rest) the lactate is reoxidized to pyruvic acid and the fragments enter the Krebs (citric acid) cycle. The plasma membranes of muscle and liver are permeable to pyruvates and lactates, permitting the blood to transport them to the liver (Cori cycle). Lactates also increase during fasting and in diabetics. See Biological oxidation, Carbohydrate metabolism, Citric acid cycle

Lactates are found in certain foods (sauerkraut), and may be used for flour conditioning and in food emulsification. Alkali-metal salts act as blood coagulants and are used in calcium therapy, while esters are used as plasticizers and as solvents for lacquers. See Ester, Salt (chemistry)


(organic chemistry)
A salt or ester of lactic acid in which the acidic hydrogen of the carboxyl group has been replaced by a metal or an organic radical.
To secrete milk.
References in periodicals archive ?
Lactate builds up when you run above your anaerobic threshold.
Findings suggest that muscle cells use carbohydrates anaerobically for energy, producing lactate as a byproduct, but then burning it, too, as an additional fuel source.
For example, the regulation that addresses sodium lactate can be found in Title 21, Code of Federal Regulations (Sodium Lactate, 2010), which classifies sodium lactate as GRAS (generally recognized as safe).
Sodium lactate (NaL) is a food-grade sodium salt derived from the fermentation of lactic acid (JRW Bioremediation, 2009).
Previous studies compared the removal of blood lactate during land jogging or running and during immersed running (Nakanishi et al.
These authors found that the accumulation of blood lactate during cycling exercise at intensities comprised between 40% and 80% of the peak oxygen uptake was not different when water immersion or land exercise were compared, but higher percentages resulted in lower blood lactate values for water immersion.
To be able to produce a reduced-sodium product without affecting the flavor profile, product developers are making use of potassium lactates.
PURAC America is the exclusive licensee of these patents and will, on request, sublicense any processor of poultry and fish to practice the patented invention for o reasonable royalty, using lactates from any source whatsoever.
In all the formulations, Patco compared this stabilizer with other calcium lactates, calcium stearates, synthetic hydrotalcite (SHT), zinc oxide and zinc stearate.
Patco says that in postreactor compounding of virgin resins, calcium lactate and calcium stearoyl lactate form harmless complexes with the titanium and aluminum catalyst residues left over from polymerization, preventing these Lewis-acid residues from reacting with the resin's primary and secondary antioxidants and thereby leaving the polymer vulnerable to degradation.
Ethyl lactate is derived from lactide and ethanol, which are both annually renewable resource-based raw materials originating from corn.
Intramuscular lactate may reach 15-25 mM after 30-120 second supramaximal bouts [11].