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The enzyme unit, or international unit for enzyme (symbol U, sometimes also IU) is a unit of enzyme's catalytic activity. [1]1 U (μmol/min) is defined as the amount of the enzyme that catalyzes the conversion of one micro mole of substrate per minute under the specified conditions of the assay method.
The katal (symbol: kat) is that catalytic activity that will raise the rate of conversion by one mole per second in a specified assay system. [1] It is a unit of the International System of Units (SI) [1] used for quantifying the catalytic activity of enzymes (that is, measuring the enzymatic activity level in enzyme catalysis) and other catalysts.
In pharmacology, the international unit (IU) is a unit of measurement for the effect or biological activity of a substance, for the purpose of easier comparison across similar forms of substances. International units are used to quantify vitamins and biologics ( hormones , some medications , vaccines , blood products and similar biologically ...
Conceptually, the length of time it takes for the Sun to return to the same position in the cycle of seasons, [Converter 1] approximately 365.242 19 d, each day being 86 400 SI seconds [28] ≈ 31.556 925 Ms
A 100 °L malt extract produces 0.00035 mol maltose in 60 min, or 5.8 μmol/min, or 5.8 IU of enzyme activity in 0.1 mL of a 5 g/100 mL (5%) infusion. The 0.1 mL of this infusion is equivalent to 0.005 g of malt. Therefore, 5.8 IU/0.005 g of malt = 1160 IU/gram of malt. 100 °L is equivalent to 1160 IU per gram of malt (or 526,176 IU per pound).
A California-based tire company has recalled over 540,000 replacement tires mistakenly labeled as snow traction products, according to an announcement from the National Highway Traffic Safety ...
Price on eBay: $8,500 Porcelain dolls don’t have to be more than 2 feet tall to be worth a lot of money. This little lady stands only 15 1/2 inches tall, but her ornate details and impressive ...
An impressive sparkling Riesling that could fool many people into thinking it was regular sparkling wine, this German multi-vintage blend has fresh, zippy flavors and a minerally end; serve it on ...