A preliminary examination of the phytochemical profile of Azolla microphylla with respect to Seasons

Objective: To evaluate the role of seasons on the phytochemical properties of Azolla microphylla.Methods:Dried and powdered leaves (50g) were extracted with 300 ml of methanol using soxhlet extractor for 16 h at a temperature not exceeding the boiling point of the solvent. Standard methods have been used to screen the phytochemical constituents. Conclusions: From the observations it can be concluded that the plant extracts show the presence of several bioactive compounds which could be exploited further.

Antibacterial and antifungal studies of various extracts of chiorophytum borivilianum leaves

Five different crude extracts viz, petroleum ether, chloroform, ethyl ether, ethanol and aqueous extract of Chiorophytum borivilianum have been studied for both in vitro antibacterial and antifungal activities. The different extracts showed remarkable inhibitory action against various gram positive and gram negative bacteria and two fungal species

Quality standards of the leaves of Tylophora indica

Tylophora indica [Asclepiadaceae] is very important medicinal plant, used in Indigenous System of Medicine as an antiasthmatic drug. The plant has been used as bronchodilator, emetic, expectorant and diaphoretic. In the present investigation, morphoanatomical, pharmacognostical and physiochemical characteristics of Tylophora indica were studied. In order to ensure the use of only genuine and uniform material of such herbal remedies, work on standardization assumes vital significance. Pharmacognostical study has, therefore been carried out, covering detailed morphological and anatomical characters; features of the powdered drug include response to U.V. light exposure, some physiochemical constants, phytochemical screening and results of TLC. The morphoanatomical characteristics and results of different chemical protocols would serve as standard reference for identification of Tylophora indica. Tylophora indica [Asclepiadaceae], commonly known as Antamool, is a climbing perennial plant indigenous to India, and has a long-standing reputation as a remedy for asthma[1] [hence the name T. asthmatica]. The plant is commonly known as Indian Ipecac. The drug is official in Bengal Pharmacopoeia[2]. Traditionally Tylophora indica has been used in treatment of asthma[3], dermatitis and rheumatism[4]. The plant has been described as bronchodilator, emetic, expectorant and diaphoretic[5] Various Phenenthroindolizidine alkaloids[6,8], Seco-phenenthroindolizidine alkaloids[9], cc-amyrin, quercetin, kaempferol and unidentified flavonoids, mixture of p-sitosterol and stigmasterol have been isolated from the aerial parts of this plant[10]. Due to the medicinal importance of Tylophora indica in Indigenous.System of Medicine, the morpho-anatomic features of the raw material, physiochemical constants, phytochemical screening of the powder and chromatographic characteristics of different extractives are evaluated in this work to provide diagnostic values for its identification

Artemisia annua linn. a review

Artemisia annua Linn, family Asteraceae, is also commonly known as annual wormwood, sweet wormwood and sweet annie