The inhibitory effects of essential oils including clove, lavender and geranium extracted from Eugenia caryophyllata, Lavandula officinalis and Pelargonium graveolens on multidrug resistant isolates of Pseudomonas aeruginosa were investigated. The main constituents of clove, lavander and geranium oil were eugenol (80-90%), 1,8-cineol (13%) and citronellol (45%) respectively. Clove had the most ...

Minyak sereh wangi (Citronella oil) adalah salah satu minyak atsiri komersial Indonesia yang diperoleh melalui proses penyulingan. Citronella mengandung esensial dengan komponen geraniol (20-40%), citronellal (25-50%), dan citronellol (10-15) menimbulkan aroma, sehingga dapat digunakan sebagai repellent atau pengusir nyamuk. insektisida alami murah efektif, juga aman praktis, dikembangkan menja...

The mosquito vector Aedes aegypti L., plays an important role in transmission of diseases including dengue, chikungunya and zika fever. In this study, citronella leaf oil extracted by hydro-distillation technique has been evaluated for its efficacy against vector. Citronella (100, 125, 150, 175 200 ppm) when tested, 150 ppm was found to be the effective larvicidal concentration 4th instar larva...

Chemical composition of the essential oils (EO) Pelargonium graveolens, Leptospermum petersonii and Cymbopogon martinii var. motia, absolute Rosa centifolia their bioactivity were examined. Major compounds in P. graveolens EO monoterpene alcohols citronellol, geraniol linalool; L. aldehydes geranial, neral citronellal; C. martiniii motia alcohol ester geranyl acetate, while R. aromatic 2-phenyl...

The addition of something foreign to lemongrass essential oil has been done since ancient times. One way is add turpentine which aims increase the volume and grade smell. purpose this study was determine authentication citronella using gas chromatography-mass spectrometry (GC-MS) method combined with multivariate PCA analysis. Fragrant isolated by distillation water simplicia in form powdered d...

The cascade catalysis of old yellow enzyme, alcohol dehydrogenase and glucose has become a promising approach for one pot, two-step reduction (E/Z)-citral to (S)-citronellol, serving as chiral with rose fragrance. During the multi-enzymatic catalysis, enzyme is responsible conjugated C=C introduction center, requiring high activity (S)-enantioselectiviy. Herein, improve from Providencia stuarti...

The aroma of roses (Rosa hybrida) is due to more than 400 volatile compounds including terpenes, esters, and phenolic derivatives. 2-Phenylethyl acetate, cis-3-hexenyl acetate, geranyl acetate, and citronellyl acetate were identified as the main volatile esters emitted by the flowers of the scented rose var. "Fragrant Cloud." Cell-free extracts of petals acetylated several alcohols, utilizing a...

Biosynthesis of (1R,4aS,7S,7aR)-nepetalactol (1) and (4aS,7S,7aR)-nepetalactone (2) in plants involves iridoid synthase (ISY), an atypical reductive cyclase that catalyses the reduction 8-oxogeranial into reactive enol (S)-8-oxocitronellal, cyclization this intermediate, either non-enzymatically or by a nepetalactol-related short chain dehydrogenase enzyme (NEPS) yields nepetalactols. In study,...

Abstract The application of biodiesel will increase in accordance with the government’s mandatory program for saving fossil fuels. challenging would come from particulate levels and water content. One efforts to fix issues is by adding rhodinol citronella oil as an additive. This research was conducted design a vacuum distillation process which has 500L capacity determine fractionation unit. Si...