Pharmacognosy

Morphology, Histology and Powder Characteristics of Senna

It is obtained from dried leaf-lets of Cassia angustifolia Vahl. (Indian senna) belonging to family Leguminosae. The present study was aimed to evaluate the morphology, histology and powder characteristics of senna.

Determination of Ash value of given sample

Ash values are helpful to determine the quality as well as purity of a crude drug, especially when the drug is present in powdered form. The object of ashing crude drugs is to remove the traces of organic matter which may be interferes in an analytical determination.

Different chemical test to analyze the crude drug of colophony

Coloponium, yellow resin, Rosin, these re the synonym of colophony. The biological source is Pinus maritime, Pinus pinaster, Pinus massoniana belongs to family Pinaceae. Aim of the experiment is to carry out different chemical test to analyze the crude drug of Colophony.

Determination of fiber length and width

Using stage micrometer calibrate the eyepiece micrometer. Calculate the factor (average distance between two lines in microns).

Determination of stomatal number

Stoma (plural-stomata) is a minute epidermal opening covered by two kidney shaped guard cells in dicot leaves. These guard cells, in turn, are surrounded