In this article we will discuss about the tests for estimation of cellulase in plants. Principle: Endo-β-1, 4 glucanase acts on carboxymethyl cellulose (CMC) and hydrolyses the β-1, 4 glycosidic bonds in a random manner. As a result, the viscosity of CMC solution is reduced. This is measured in an Ostwald viscometer. Materials: a. Citrate-phosphate Buffer 0.1 M (pH 6.0) [...]
In this article we will discuss about the tests for estimation of ascorbic acid in plants. Principle: Ascorbic acid oxidase acts on the substrate ascorbic acid to form dehydro-ascorbic acid. The residual ascorbic acid content is determined by titration using a dye solution (Dichlorophenol indophenol, an oxidation-reduction dye): Requirements: (a) Reagents: 1. Dye solution: 15 mgm of 2-6 dichlorophenol indophenol [...]
In this article we will discuss about the tests for detection of tannins in plants. Tannins are a heterogeneous group of organic compounds found in plants. They are commonly present in unripe fruits — guava, banana and leaves of tea etc. These are water-soluble compounds. The metabolic significance of these compounds are not clearly known but they play a significant [...]