Styrax is a gorgeous species combined with high medicinal and ornamental values, however, information about its floral scents limited. This study aimed to reveal the scent compounds dynamic changes in flowering process of japonicus, S. grandiflora calvescens. Static headspace solid-phase microextraction coupled gas chromatography-mass spectrometry was adopted present study. The results showed t...

This work analyzed the chemical compositions and evaluated antioxidant cytotoxic activities of essential oils (EO) Eugenia patrisii (Epat), stipitata (Esti), Myrcia splendens (Mspl), sylvatica (Msyl), Psidium guajava (Pgua), guineense (Pgui-1 Pgui-2) from Brazilian Amazon. Sesquiterpenoids were found in high concentrations E. M. splendens, which rich E-caryophyllene (32.0% 45.8%); sylvatica, di...

Bioactive compounds from plants play an important role in slowing many neurodegenerative diseases, such as Alzheimer’s disease, by inhibiting cholinesterase enzymes. Studies have shown that oxidative stress is associated with the development of disease. In traditional medicine Bosnia and Herzegovina, Teucrium montanum used to treat numerous diseases. The chemical composition biological activity...

Artemisia argyi leaf is a widely used traditional Chinese medicine (TCM). In this work, for the first time, the separation and identification of volatile constituents in Artemisia argyi flowers is performed. Gas chromatography-mass spectrometry (GC-MS) with solid-phase microextraction (SPME) is developed for the fast analysis of volatile constituents in the flowers. Several headspace SPME param...

Background and objectives: Phlomis bruguieri Desf. (Lamiaceae) is a perennial herbaceous plant distributed in Iran, Turkey and Iraq. Despite medicinal potentials of this species, the current knowledge on its phytochemical constituents is limited. The aim of the present study was to investigate the phytochemical constituents of the essential oil and various extracts of ...

Bay laurel leaves, also known as bay are an important herb in many cuisines around the world. In addition to their use cooking, leaves have been used for medicinal properties and thought anti-inflammatory antimicrobial effects. Gas chromatography/mass spectrometry (GC-MS) device was determine secondary metabolites essential oil of samples kept at different temperatures (−22, −20, −18, 2, 4, 6, ...

Myoporum sandwicense A. Gray (naio) is one of the characteristic trees Hawaiian montane–subalpine mesic forests. In this study, lab-distilled oils M. leaves, wood, and twigs growing on island Hawaii, as well industrially produced wood oils, were characterized by gas chromatography–mass spectrometry (GC-MS). The screened for antimicrobial activity. leaf essential oil was rich in β-caryophyllene ...

Vanda Mimi Palmer (VMP), an orchid hybrid of Vanda tesselata and Vanda Tan Chay Yan is a highly scented tropical orchid which blooms all year round. Previous studies revealed that VMP produces a variety of isoprenoid volatiles during daylight. Isoprenoids are well known to contribute significantly to the scent of most fragrant plants. They are a large group of secondary metabolites which may po...

Background and Aims: Sideritis species (Lamiaceae) which are quite widespread in the Mediterranean region represented by 46 53 taxa Turkey, often used as a antirheumatic, anti-inflammatory, antimicrobial diuretic remedies. Methods: In this study, infusion (INF), essential oil (EO) methanolic extract (ME) of chemical compounds prepared from aerial parts albiflora Hub.-Mor. (endemic) were investi...

The extraction of bioactive plant components, which belong to specialized metabolites, is carried out by conventional and novel methods. In this study, a classical (hydrodistillation, HD) technique (microwave-assisted water extraction, MAE) were used isolate free volatile compounds from nine Croatian Veronica taxa (family Plantaginaceae). Each these extracts consists lipophilic phase an aqueous...