Definitions
from The Century Dictionary.
- Derived from catechol.
from the GNU version of the Collaborative International Dictionary of English.
- adjective (Chem.) Pertaining to, derived from, or designating, an organic acid which is obtained as a white crystalline substance from catechin, asafetida, oil of cloves, etc., and by distillation itself yields pyrocatechin.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective organic chemistry Related to
protocatechuic acid , protocatechuic aldehyde or their derivatives
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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With the introduction of the carboxylic group the tendency of condensation to diphenylmethane derivatives is lessened; by protocatechuic acid the tendency is nil.
Synthetic Tannins Georg Grasser
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Lowe and Schiff (_loc.cit. _) have obtained products similar to tannins, the latter investigator by removing the elements of water from gallic acid, protocatechuic acid, salicylic acid, _m_-hydroxybenzoic acid, cresotinic acid, phloretinic acid, and pyrogallolcarboxylic acid.
Synthetic Tannins Georg Grasser
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The burning taste is due to a resin that produces protocatechuic acid when melted with potassa.
The Medicinal Plants of the Philippines Jerome Beers Thomas 1891
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Reduction in acrylamide formation was observed to be at its best during the initial stage of heating - where it was seen to reach up to 70 per cent for trolox, gallic acid and protocatechuic acid and up to 50 per cent for ferulic and caffeic acid.
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Given that acrylamide formation was very low at 115 oC, a temperature of 125oC was chosen to examine the effects of phenolic compounds (trolox, ferulic acid, gallic acid, protocatechuic acid and caffeic acid) on acrylamide formation.
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Roselle calyx extracts and protocatechuic acid could be potent agents in the prevention of food contamination by spoilage bacteria, claims a new study in a forthcoming issue of the journal Foodborne Pathogens and Disease.
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Roselle calyx extracts and protocatechuic acid could be potent agents in the prevention of food contamination by spoilage bacteria, claims a new study in a forthcoming issue of the journal Foodborne Pathogens and Disease.
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And, according to the findings, the antibacterial activity of roselle calyx ethanol extract and protocatechuic acid was not affected by heat treatments from 25°C to 75°C and 25°C to
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Roselle calyx extracts and protocatechuic acid could be potent agents in the prevention of food contamination by spoilage bacteria, claims a new study in a forthcoming issue of the journal Foodborne Pathogens and Disease.
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Its main active ingredients were found to be protocatechuic aldehyde for diminishing inflammation and chlorogenic acid for bacteria and virus control.
unknown title 2009
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