Phytochemical studies of the endangered tree, Saracaasoca (Roxb.) De Wilde

Abstract

Saraca asoca (Roxb.) De Wilde. is an endangered medicinal tree that has immense medicinal importance. Six accessions of S. asoca were analyzed for phytochemicals to identify the accessions with the highest content of medicinal compou nds and to characterize two pharmaceutically important compounds. The chloroform and ethanol extracts of bark and the ethanol a nd chloroform extracts of flowers of the accessions were qualitatively tested for secondary metabolites. Total phenolics and flavonoids were also estimated to select the accessions with the highest content, which was further investigated by a sensitive and reliable high performance liquid chromatographic (HPLC) method for the pharmacologically important quercetin and catechin. The accession, Sa-O, identified based on the results of phytochemical analysis incidentally is the fifty-year-old ornamental tree on

Original article Effect of drying on phytochemical composition of lemongrass (Cymbopogoncitratus (DC.) Stapf) powder

“…Total phenolic contents (TPC) from the extracts were quantified using Folin-Ciocalteu's method (Mohan et al, 2017). First, 5 ml Folin-Ciocalteu reagent was added to 1 ml sample in tube.…”

“…The total flavonoid content of cold and hot extracts were determined using a slightly modified method reported by Mohan et al (2017). A 0.5 ml of appropriately diluted sample was mixed with 0.5 ml methanol, 50 µl of 10% AlCl 3 , 50 µl of 1 mol l -1 potassium acetate and 1.4 ml water and allowed to incubate for 30 min at room temperature.…”

RP-HPLC-based phytochemical screening of different polyphenolic compounds from floral extract of four species of Saraca L. (Leguminosae)

“…The phytochemicals present within each of the sample on the basis of known standards were quantified according to the following formula [24].…”

Seed parameters study in <em>Commiphora wightii</em> (Arnott)– an important medicinal tree of arid and semi-arid regions of India

“…The restricted population and limited raw material of guggal in India is insufficient to fulfill the demand of indigenous medicine [9] and thus creates urgent need of conservation through large scale plantation. Apomictic nature [5,10,11], low black seed and extremely low white seeds viability [1] of this plant are main problems in raising nursery. Therefore, the present study was done with the aim to study the seed characters in different genotypes to establish the relationship amongst seed germination and other seed parameters.…”