Physicochemical and Phytochemical Examination of Medicinal Plants Used in Indigenous System of Medicine

Abstract

The present paper deals with the physicochemical and phytochemical examination of seventy-six medicinal plants belonging to thirty-six dicot and six monocot families. These are used in indigenous system of medicine as well as local inhabitants either as single drugs or in combination, for the cure of various ailments. In physicochemical study, the parameters such as moisture content,pH (1% aqueous), total ash, acid insoluble ash, water-soluble extractive and alcohol soluble extractive were carried out. The preliminary phytochemical study was done for the detection of secondary metabolites such as alkaloid, flavonoid, glycoside, phenol, saponin, resin, steroid and tannin. The preliminary phytochemical study revealed the presence of alkaloid and saponin in 68.4%; flavonoid in 44.7%; glycoside, phenol and steroid in 72.37%; resin in 60.5% and tannin in 71% of selected medicinal plants.

PHYSICAL AND PHYTOCHEMICAL SCREENING OF MARKET SAMPLES OF ASHWAGANDHA [Withania somnifera (Linn) Dunal] IN KERALA.

“…The mixing of cheap variety of Ashwagandha is reportedly rampant. Intentional mixing of lateral thin roots of same species by primary collectors was also reported in the market samples 4 . Although there exists reports of adulteration, no much detailed studies regarding the genuineness of Ashwagandha available in raw drug markets of Kerala have been carried out till date.…”

“…Only there existed slight variations between genuine and market sample values. The slight variation in physicochemical and phytochemical results may be due to several factors such as different geographic condition, edaphic factors, environmental condition, period of cultivation and harvesting, method of collection, source of irrigation and fertilizers, age of the plant, powdering method and extraction method (Santhosh et al, 2005) 4 .…”

Pruebas fisicoquímicas para la evaluación de la calidad de una marca costarricense de tisanas de valeriana

“…Estas diferencias pueden deberse a la obtención de la valeriana en diferentes períodos del año. Las variaciones en las propiedades fisicoquímicas y son ocasionadas por diversos s condiciones geográficas, condiciones ambientales (clima, suelo y topografía), período de cultivo y cosecha, método de recolección, fuente de irrigación y fertilizantes, edad de la planta y método de extracción [19] [20]. Asimismo, influyen sobre la síntesis de metabolitos requeridos para el efecto farmacológico y su contenido en la materia prima complemento, se observaron as apariencias visuales de los lotes, lo cual indica que no existe uniformidad sobre el procesamiento del material o se dan cambios en la composición del mismo.…”

Extraction, Phytochemical Screening, Separation and Characterisation of Bioactive Compounds From Leaves Extracts of Clitoria Ternatea Linn. (Aparajita)

“…TLC can be used to help determine the number of components in a mixture, the identity of compounds, and the purity of a compound. It consists of three steps spotting, development, and visualization 12,13 . The R f value is used to quantify the movement of the materials along the plate.…”