Friday, 23 September 2016

Biological Evaluation of Native and Exotic Plants of Bangladesh



Phytomedicine refers to the use of any plant part for medicinal purposes. Estimates of 25% of currently used prescribed drugs are chemically altered natural products and another 25% comes directly from the arena of herbal medicine. In addition, evidences drawn from the studies of Arvigo et al (1993) showed an estimate of 119 chemical substances were obtained from 90 different plant species. In 74% cases, an active substance was isolated from a plant which had been used in the traditional system of medicine, revealing the primary importance medicinal plants in the healthcare system. This is due to the fact that, plants contain various secondary metabolites serving as the source of novel therapeutic compound conferring improvement of human health with controlled adverse effects. Various medicinal products likeanti-microbial agents, cardiotonic agents, Central nervous system (CNS)stimulants, nutraceuticals, sweeteners, animal feed, etc, are derived from the natural source, natural product can also have the potentiality of anticancer agent.Thus the present study aims at the preliminary phytochemical screening and the evaluation of diverse pharmacological activities of the methanol extract of Murdannianudiflora, Tradescantiapallida and Piper nigrum as well as their organic soluble partitionates.

Exotic Plants of BangladeshThe plants employed for the study had some notable compound that have elucidated significant therapeutic activity such asanthrocyanidins isolated from Tradescantia pallid was investigated as potential food pigment as well as various flavonoid compound isolated from the seeds of Piper nigrum such as piperine, Limonen, Sabinene in abundance as well as b-cryophyllene, Piperolein B, Dehydropipernonaline, Piperlongumininehas been investigated for its therapeutic role as major antioxidant compounds.

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