Pharmacognosy

Separation of plant pigments by column chromatography

Wet pack method is used to prepare the column. The chromatography column is made with plastic tip with frit, the one-way stopcock, and the plastic funnel. The column is filled with enough alumina to get the required height.

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.

Determination of Swelling and Foaming Index

Many herbal drugs are of specific for the therapeutic or pharmaceutical utility because of their swelling properties − especially gums and drugs those are containing an appreciable amount of constituents like mucilage, pectin or hemicelluloses.

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 size of starch grains

Calibrate eyepiece micrometer by using stage micrometer and calculate the factor. Mount a little quantity of powdered sample in glycerin water and measure the length