Results 131 to 140 of about 514,514 (304)

Antibacterial activity and composition of essential oils from Pelargonium graveolens L'Her and Vitex agnus-castus L

open access: yesIranian Journal of Microbiology, 2012
Background and Objectives: Essential oils are volatile compounds that have been used since Middle Ages as antimicrobial, anti-inflammatory, sedative, local anesthetic and food flavoring agents.In the current study, essential oils of Pelargonium ...
A Ghannadi   +5 more
doaj  

OIL VOLATILITY-OF-VOLATILITY AND TAIL RISK OF COMMODITIES

open access: yesApplied Finance Letters
We examine the information content of oil volatility-of-volatility (VOV), constructed from the past 1-month OVX (implied volatility in crude oil market), on the expected tail risk of commodities. Specifically, we find oil VOV predicts 1-step-ahead tail risks of Energy, Precious Metals, Agriculture, Livestock sectors and the Aggregate Commodity sector ...
Xu, Yahua   +2 more
openaire   +3 more sources

Development and Validation of a Cellulose‐Coated Stir Bar Sorptive Extraction Method for a Simple, Environmentally Friendly Approach to Measuring Free Glycerol in Biodiesel

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
Preparation of a highly porous cellulose‐coated stir bar for the selective, environmentally friendly extraction of free glycerol from biodiesel using the SBSE method, followed by HPLC‐DAD analysis of the extract after derivatization with benzoyl chloride.
Caroline Lopes da Silva   +3 more
wiley   +1 more source

Volatile-Oils Composition, and Bioactivity of the Essential Oils of Plectranthus barbatus, P. neochilus, and P. ornatus Grown in Portugal

open access: yes, 2014
Volatile-oils chemical composition and bioactivity of the essentail oils from Plectranthus barbatus, P. neochilus, and P. ornatus (Lamiaceae) were assessed.
M. Graça Miguel   +13 more
core   +1 more source

Comparative Profiles of Lipophilic Nutrients and In Vitro Antioxidant Activity in Commercial Arabica and Robusta Green Coffee Beans

open access: yesJournal of the American Oil Chemists' Society, EarlyView.
Integrated compositional profiling of ten commercial green coffee lots showed higher mean total phenolic content, DPPH radical‐scavenging activity, β‐carotene, and total phytosterols in Robusta‐labeled lots, whereas Arabica‐labeled lots showed higher mean total tocopherols and total measured fatty acids.
Muyny Chhom   +2 more
wiley   +1 more source

Chemical evaluation of volatile oils in Eucalyptus species

open access: yes, 1989
The volatile leaf oils of Eucalyptus kochii subsp. kochii, E. kochii subsp. plenissima, and Eucalyptus oleosa var. borealis, potential Western Australian candidates for commercial eucalyptus oil production, were analyzed by means of GC, GC/MS, and IR ...
Barton, A.F.M.   +5 more
core   +1 more source

Design and Performance of a High‐Efficiency Inhibitor: Synergistic Effect of Modified Chitosan and Boron Nitride Nanosheets on Steel Protection

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Metal corrosion causes significant economic losses and safety hazards, underscoring the urgent need for effective, environmentally friendly corrosion inhibitors. In this study, an organic–inorganic composite inhibitor, chitosan–glucose–BN (CS–GL–BN) was developed to protect Q235 mild steel in a 3.5‐wt% NaCl solution.
Shanjun Xu   +4 more
wiley   +1 more source

Granular Bed Filtration of Coal Pyrolysis Gas: Effects of Media Reactivity on Dust Removal and Products

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Granular bed filtration is a promising technology for removing dust from high‐temperature coal pyrolysis gas. In this work, the reactivity of coal pyrolysis products over ceramsite, char, ultrastable Y‐type (USY) zeolite, and quartz particles was compared.
Shuaiqiang Yang   +4 more
wiley   +1 more source

Geographical traceability of West Liguria extravirgin olive oils by the analysis of volatile terpenoid hydrocarbons

open access: yes, 2005
This study aimed at evaluating if the volatile terpenoid hydrocarbons of extravirgin olive oils from West Liguria, a North Italy region, could trace their geographical origin.
ZUNIN, PAOLA   +3 more
core   +1 more source

Enhancing the Performance of Aqueous Lithium‐Ion Batteries via N‐Methylpyrrolidone Additive

open access: yesAsia-Pacific Journal of Chemical Engineering, EarlyView.
ABSTRACT Aqueous lithium‐ion batteries (ALIBs) have garnered significant attention in the field of energy storage due to their inherent safety. However, their practical application is severely constrained by a narrow electrochemical window and electrolyte crystallization at low temperatures.
Zhiwei Shi   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy