The formation of 4-deoxyaurones, which serve as UV nectar guides in Bidens ferulifolia (Jacq.) DC., was established by combination of UV photography, mass spectrometry, and biochemical assays and the key step in aurone formation was studied. The yellow flowering ornamental plant accumulates deoxy type anthochlor pigments (6'-deoxychalcones and the corresponding 4-deoxyaurones) in the basal part...

Ipomea hederacea Jacq. (kaladana or ivy leaf morning-glory), a member of the family Convolvulaceae, is used primarily for its seeds and recognized for its medicinal properties, especially in Asian countries. This medicinal herb contains various valuable chemical constituents such as ecdysteriods, steroidal glycosides, aromatic acids, triterpenes, amino acids, organic acids, mineral elements and...

A phytochemical study of two plant species, Viscum cruciatum Sieber and Crataegus monogyna Jacq., was completed to investigate the influence of the parasite Viscum cruciatum on the host Crataegus monogyna. The study was carried out with two samples and consisted of hexane extracts of the Viscum cruciatum parasitizing on Crataegus monogyna and C monogyna. In these samples ursolic acid, beta-sito...

Four acyclic diterpene glycosides were extracted from Habanero, the fruits of Capsicum chinense JACQ., which is known as one of the hottest peppers in existence. Two of these glycosides were identified as capsianoside XIII and capsianoside XV. The other two were new ones and were characterized as 3-O-beta-D-glucopyranosyl-(1-->4)-beta-D-glucopyranosyl 17,19-dihydroxy-6E,10E,14Z-(3S)-geranyllina...

The objective of the present study was to evaluate in vitro antileishmanial activity of leaves form Plumeria pudica Jacq. (Apocynaceae). In the present study, the in vitro antileishmanial activity of petroleum ether, chloroform and methanol extracts from P. pudica leaf was evaluated against Leishmania donovani (strain AG 83) promastigotes by in vitro promastigote cell toxicity assay by using MT...

The determination of residual solvents in pharmaceuticals is one of the most important gas chromatography (GC) applications in quality assurance/quality control (QA/QC) in the pharmaceutical industry. Sample introduction is normally done using static headspace (SHS). In routine QC, GC with flame ionization detection (FID) is preferred, while mass spectrometry (MS) can be used for screening and ...

Genomic DNA isolated from zygotic embryos (seeds) of 7 chilli pepper varieties, namely Capsicum annuum L., California wonder, Yolo wonder, G-5, Pusa sadabahar, Pusa jyothi and LCA-335 and Capsicum chinense Jacq. variety Kotpar, was PCR-amplified using Pun1 allele specific primer MAP1. A DNA band admeasuring 479 bp was observed in C annuum L., varieties California wonder and Yolo wonder, while a...

Keberhasilan pembangunan perkebunan kelapa sawit diawali dari penyediaan bibit yang standar sesuai dengan kriteria dikeluarkan oleh produsen kecambah. Nitrogen (N) adalah salah satu unsur hara sangat menentukan pertumbuhan (Elaeis guinensis Jacq). Sumber pupuk nitrogen untuk pemupukan bervariasi sumber alam maupun sintetik. Harga terus meningkat menjadi dasar melakukan penelitian ini, sehingga ...

?-Amylase inhibitory activities of ethanol extracts from six selected Iranian Salvia species (S. hydrangea DC., S. hypoleuca Benth., S. officinalis L., S. reuterana Boiss., S. verticillata L. and S. virgata Jacq.) were examined, using in vitro model. In addition, antioxidant capacities (DPPH• radical scavenging) and total flavonoid cotents of the extracts were also determined. The results showe...