Two new lignan glycosides of dibenzylbutyrolactol type (haplomarin) and arylnaphthalene type (haploborin) were isolated from the aerial parts of Haplophyllumn suaveolens together with the known arylnaphthalene lignan glycoside arabelline and hydroxycoumarin glycoside xeroboside. So far arabelline is found only in H. buxbaunii. This is the first report of the isolation of xeroboside from Haploph...

Preliminary phytochemical screening of petroleum ether and alcohol extract of Symplocos Racemosa Roxb was carried out which indicates that alcoholic extract contain carbohydrate, glycoside, saponin and terpenoid & alkaloid and ether extract indicated presence of glycoside, phytosterol and steroid. An antibacterial evaluation of the petroleum ether and ethanolic extract was carried out and it is...

A new megastigmane glycoside, called pipeloside A, and a new aromadendrane type sesquiterpenoid, pipelol A, were isolated from the MeOH extract of the aerial part of Piper elongatum VAHL. along with a known megastigmane glycoside, byzantionoside B. The structures of these compounds were elucidated on the basis of spectroscopic data and chemical evidence.

Objective: In the present study, screening for some flavonoids (aglycone and glycoside) in tamarix aphylla by using thin layer chromatography high-performance liquid chromat-ography. Methods: The leaves of
 
 Tamarix.aphylla was extracted soxhlet with Ethylacetate then ethanol /water 90%. were detected Analyticl standards HPLC. Results:Three flavonoid aglycones ethylacetate (Kaempfero...

Due to the present water shortage and environmental problems associated with industrial effluent, investigation of novel treatment technologies is an essential approach. Being a highly toxic chemical of asphyxiating characteristics, cyanide is seen as a major environmental pollutant in a wide range of industrial effluents. The present study aimed to address the adsorption and photocatalytic deg...

Key words (–)-peyssonnoside A - diterpene glycoside marine natural product antimicrobial dearomative cyclization HAT-initiated Wittig reaction Mukaiyama hydration

The melon fly, Bactrocera cucurbitae is of serious concern inflicting heavy losses to the horticultural industry. It attacks cucurbits right from primordial stages crop up harvest and causing yield loss 30 100%. Sterile Insect Technique a species-specific environmentally non-polluting method insect control that relies on sterilization males using gamma rays systemic release sterile in wild envi...

This paper presents a new assay to determine the activity of the lysosomal enzyme α-N-acetylgalactosaminidase (Naga, EC 3.2.1.49) in human serum. It is based on the use of a new chromogenic substrate, DNP-α-GalNAc (2,4-dinitrophenyl-N-acetyl-α-D-galactosaminide) and is performed at pH 4.3 and 37 °C. This allows continuous monitoring of the absorbance of the released DNP. The assay can be perfor...

Micellar electrokinetic chromatography (MEKC) conditions were developed to analyze the constituents of Scutellariae Radix (SR) and Scutellaria baicalensis roots. Using the MEKC method, the major flavonoid constituents of baicalin, baicalein and wogonin of wild and cultivated S. baicalensis roots were compared. In a preliminary comparison of electropherogram, one special peak was found in a wild...