Smoke residue contains high concentrations of volatile phenols such as guaiacol
- which is also responsible for the flavour of smoke in preserved food such as bacon, fish and roast coffee - tends to float towards the bottom of a glass of whisky.
It's made with wood residues, lignin [a class of complex organic polymers], guaiacol
[a naturally occurring organic compound], and the Japanese have found a technique to produce it from manure," she told the Mexican news agency Notimex.
In radish plants, the use of terbium (Tb3+) (5 mg L-1) increases the activity of ascorbate and decreases guaiacol
content (Wang et al.
Abedi and Pakniyat  antioxidant enzyme changes in response to drought stress in cultivars of oilseed rape revealed an enhancement of the activities of SOD and guaiacol
peroxidase whereas CAT activity decreased.
The peroxidase activity was evaluated through the oxidation of guaiacol
in tetraguaicol in the presence of hydrogen peroxide (ZERAIK et al.
The positive ligninolytic isolates were indicated by a brown precipitate forming on the culture plate as an indicator of phenolic compound of guaiacol
was oxidized (Coll et al.
Antioxidant enzymes include catalase (CAT), glutathione reductase (GR), superoxide dismutase (SOD), ascorbate peroxidase (APX), monodehydroascorbate reductase (MDHAR), dehydroascorbate reductase (DHAR), glutathione peroxidase (GPX), guaiacol
peroxidase (GOPX) and glutathione-S-transferase (GST).
POD activity was measured using the guaiacol
method, where a 0.
nitro and nitrito), imidazole, two forms of phenol (neutral and anionic), and water - related to an unexpected range of electronic structures detectable in electron paramagnetic resonance (EPR) spectra of a water-soluble copper porphyrin with water, nitrite, imidazole, dithionite, 2,2'-azino-bis(3-ethylbenzthiazoline-6- sulphonic acid) (ABTS) and guaiacol
peroxidase activity was measured at 470 nm by using [H.
MPO activity was determined spectrophotometrically by guaiacol