Any member of the class of enzymes that catalyze the cleavage of an ester bond and result in the addition of water to the resulting molecules.
Esterase
D005707
Gallic Acid
A colorless or slightly yellow crystalline compound obtained from nutgalls. It is used in photography, pharmaceuticals, and as an analytical reagent.
3,4,5-Trihydroxybenzoic Acid,Acid, Gallic
D006863
Hydrogen-Ion Concentration
The normality of a solution with respect to HYDROGEN ions; H+. It is related to acidity measurements in most cases by pH
pH,Concentration, Hydrogen-Ion,Concentrations, Hydrogen-Ion,Hydrogen Ion Concentration,Hydrogen-Ion Concentrations
D001230
Aspergillus
A genus of mitosporic fungi containing about 100 species and eleven different teleomorphs in the family Trichocomaceae.
D013053
Spectrophotometry
The art or process of comparing photometrically the relative intensities of the light in different parts of the spectrum.
D013634
Tannins
Polyphenolic compounds with molecular weights of around 500-3000 daltons and containing enough hydroxyl groups (1-2 per 100 MW) for effective cross linking of other compounds (ASTRINGENTS). The two main types are HYDROLYZABLE TANNINS and CONDENSED TANNINS. Historically, the term has applied to many compounds and plant extracts able to render skin COLLAGEN impervious to degradation. The word tannin derives from the Celtic word for OAK TREE which was used for leather processing.