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Laccase is produced by a number of fungal species that can infect grapes, most notably Botrytis cinerea Pers. (1794). [17] Laccase is active at wine pH and its activity is not readily suppressed by sulfur dioxide. It has been noted to cause oxidative browning in white wines and loss of colour in red wines.
By far the most frequently used products are formulations for mixing with water then applying as sprays. Water miscible, older formulations include: EC Emulsifiable concentrate; WP Wettable powder; SL Soluble (liquid) concentrate; SP Soluble powder; Newer, non-powdery formulations with reduced or no use of hazardous solvents and improved ...
2,4,6-Trichlorophenol, also known as TCP, phenaclor, Dowicide 2S, Dowcide 2S, omal, is a chlorinated phenol that has been used as a fungicide, herbicide, insecticide, antiseptic, [3] defoliant, and glue preservative. [4] It is a clear to yellowish crystalline solid with a strong, phenolic odor.
The tables below provides information on the variation of solubility of different substances (mostly inorganic compounds) in water with temperature, at one atmosphere pressure. Units of solubility are given in grams of substance per 100 millilitres of water (g/(100 mL)), unless shown otherwise. The substances are listed in alphabetical order.
A wettable powder (WP) [1] is an insecticide or other pesticide formulation consisting of the active ingredient in a finely ground state combined with wetting agents and sometimes bulking agents. Wettable powders are designed to be applied as a dilute suspension through liquid spraying equipment. As wettable powders are not mixed with water ...
In female elephants, the two compounds 3-ethyl phenol and 2-ethyl 4,5 dimethylphenol have been detected in urine samples. [70] Temporal glands secretion examination showed the presence of phenol, m-cresol and p-cresol (4-methyl phenol) during musth in male elephants. [71] [72] [73] p-Cresol and o-cresol are also components of the human sweat.
Phenol: The phenol used for biochemistry comes as a water-saturated solution with Tris buffer, as a Tris-buffered 50% phenol, 50% chloroform solution, or as a Tris-buffered 50% phenol, 48% chloroform, 2% isoamyl alcohol solution (sometimes called "25:24:1"). Phenol is naturally somewhat water-soluble, and gives a fuzzy interface, which is ...
This compound is chosen because the enzyme facilitates the reaction with hydrogen peroxide, turning it into a green and soluble end-product. Its new absorbance maximum of 420 nm light (ε = 3.6 × 10 4 M –1 cm –1 ) [ 2 ] can easily be followed with a spectrophotometer , a common laboratory instrument.