| alkaline toluidine blue O | Toluidine blue O in borax solution, used with heat on semithick sections of epoxy embedded tissues. (05 Mar 2000) |
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| toluidine blue | <chemical> A thiazin dye related to methylene blue and Azure A in structure, often used for staining thick resin sections. Typically exhibits metachromasia. (18 Nov 1997) |
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| toluidine blue O | A blue basic dye, C15H16N3SCl, used as an antibacterial agent, as a nuclear stain, and to stain metachromatically certain structures (e.g., the granules in mast cells which are believed to contain heparin and cartilage matrix which is rich in chondroitin sulfate), and in electrophoresis to stain RNA, RNase, and mucopolysaccharides; it also antagonises the anticoagulant action of heparin. See: tolonium chloride. (05 Mar 2000) |
| toluidine | <chemistry> Any one of three metameric amido derivatives of toluene analogous to aniline, and called respectively orthtoluidine, metatoluidine, and paratoluidine; especially, the commonest one, or paratoluidine, which is obtained as a white crystalline substance. It is used in the aniline dye industry, and constitutes the essential nucleus or radical of those dyes. Source: Websters Dictionary (01 Mar 1998) |
| AH-101 thermostable alkaline protease | <enzyme> Isolated from bacillus sp. No. Ah-101; has sequence similarity to other subtilisin-like enzymes Registry number: EC 3.4.21.- Synonym: ah-101 protease (26 Jun 1999) |
| alkaline | <chemistry> Having the reactions of an alkali. Origin: L. Alkalinus (18 Nov 1997) |
| alkaline-ash diet | A diet consisting mainly of fruits, vegetables, and milk (with minimal amounts of meat, fish, eggs, cheese, and cereals), which, when catabolised, leave an alkaline residue to be excreted in the urine. Synonym: acid-ash diet, basic diet. (05 Mar 2000) |
| alkaline D-peptidase | <enzyme> A penicillin-recognizing enzyme from bacillus cereus; has beta-lactamase activity; genbank d86380 Registry number: EC 3.4.99.- Synonym: ADP gene product, alkaline d-stereospecific endopeptidase (26 Jun 1999) |
| alkaline earth | <chemistry> Any of the metallic elements found in the second column of the periodic table, such as calcium and magnesium. (09 Oct 1997) |
| alkaline earth elements | Those element's in the family Be, Mg, Ca, Sr, Ba, and Ra, the hydroxides of which are highly ionised and hence alkaline in water solution. (05 Mar 2000) |
| alkaline earths | See: alkaline earth elements. (05 Mar 2000) |
| alkaline elastase | <enzyme> Serine proteinase with molecular weight of 25,000 from alkalophilic bacillus sp. Ya-b Registry number: EC 3.4.21.- (26 Jun 1999) |
| alkaline milk drip | A variable mixture of sodium bicarbonate in whole milk dripped into the stomach through a small oral or nasal tube to produce constant achlorhydria; used in the treatment of certain ulcers. (05 Mar 2000) |
| alkaline phosphatase | <enzyme> An enzyme that catalyses the cleavage of inorganic phosphate non-specifically from a wide variety of phosphate esters and having a high (greater than 8) pH optimum. Found in bacteria, fungi and animals but not in higher plants. (18 Nov 1997) |
| alkaline protease | <enzyme> These proteases work best in the pH range of 8 to 11 and are used widelyin washing powders and to de-hair hides. Alkaline proteases are mainlyproduced by bacteria in the Bacillus species. (13 Nov 1997) |
| alkaline reaction | Any test by which an alkaline reaction is recognised, such as the change of red litmus paper to blue, an excess of hydroxide ions over hydrogen ions in aqueous solution as indicated by a pH value greater than 7 (at 22캜). Compare: dissociation constant of water. Synonym: basic reaction. (05 Mar 2000) |