Abstract
Tecoma gaudichaudi DC (Bignoniaceae) is a shrub or a small tree found in various regions of Maharashtra. The objective of the study was to develop various standardization parameters for the evaluation of leaves of this plant. Microscopy, powder characteristics and scanning electron microscopy (SEM) of leaves were observed and results were recorded. Histological study of leaves shows underlined palisade cells on the upper epidermal surface, anomocytic stomata on the lower epidermis with covering (2–3 cells) and glandular trichomes etc. The specific observed characteristics such as types of stomata and trichomes were predominantly observed on the lower epidermal surface of the leaf. Physicochemical analysis such as extractive value includes petroleum ether, ethanol, ethyl acetate and aqueous soluble extractive values of 3.08, 10.50, 8.5, and 13.4% w/w respectively; extracts were analysed by chemical test and showed presence of flavonoids, tannins, steroids and triterpenoids etc. Fluorescence analysis is one of the parameters that help in the analysis of chemical constituents. So these parameters are useful in the authentication of T. gaudichaudi DC and can play a vital role in authentication and standardization of botanicals.
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