Results 11 to 20 of about 132,564 (315)

Sulfur and Sulfur Compounds in Plant Defence [PDF]

Natural Product Communications, 2012
The multiplicity of chemical structures of sulfur containing compounds, influenced in part by the element's several oxidation states, directly results in diverse modes of action for sulfur-containing natural products synthesized as secondary metabolites in plants.
Ifeanyi D, Nwachukwu, Alan J, Slusarenko, Martin C H, Gruhlke   +2 more
openaire   +2 more sources

Sulfane Sulfur Compounds as Source of Reappearance of Reductive Off-Odors in Wine

Fermentation, 2022
Reactive compounds with one or more sulfane sulfur atoms can be an important source of reductive off-odors in wine. These substances contain labile sulfur, which can participate in microbiological (enzymatic) and chemical transformations (including in ...
Nikolaus Müller, Doris Rauhut, Andrii Tarasov   +2 more
doaj   +1 more source

Effects of elemental sulfur and sulfur-bearing minerals on the thermal evolution of aromatic compounds in solid bitumen

Shiyou shiyan dizhi, 2021
Previous studies have shown that some of the aromatic compound parameters have good correlation with the maturity of organic matter. However, it is still unknown whether the widely used aromatic maturity-related parameters are available with the co ...
Yanyan ZHANG, Shuifu LI, Shouzhi HU, Xinyan FANG, Liangliang WU   +4 more
doaj   +1 more source

Análise de compostos sulfurados em efluentes gasosos de refinaria de petróleo Analysis of sulfur compounds in petroleum refinery gaseous effluents

Química Nova, 2010
This work discusses an analytical procedure for analysis of sulfur compounds in treated petroleum refinery gaseous effluents using a sulfur chemiluminescence detector with dual plasma burner (SCD-DP).
Júlio Carlos Afonso, Kátia da Silva Pereira   +1 more
doaj   +1 more source

In the Alphaproteobacterium Hyphomicrobium denitrificans SoxR Serves a Sulfane Sulfur-Responsive Repressor of Sulfur Oxidation

Antioxidants, 2023
In organisms that use reduced sulfur compounds as alternative or additional electron donors to organic compounds, transcriptional regulation of genes for enzymes involved in sulfur oxidation is needed to adjust metabolic flux to environmental conditions.
Jingjing Li, Kaya Törkel, Julian Koch, Tomohisa Sebastian Tanabe, Hsun Yun Hsu, Christiane Dahl   +5 more
doaj   +1 more source

The significance of glucosinolates for sulfur storage in Brassicaceae seedlings

Frontiers in Plant Science, 2014
Brassica juncea seedlings contained a two-fold higher glucosinolate content than Brassica rapa and these secondary sulfur compounds accounted for up to 30 % of the organic sulfur fraction.
Luit J. eDe Kok
doaj   +1 more source

Application of sulfur-based composite materials in the positive electrode of lithium-sulfur batteries [PDF]

E3S Web of Conferences
Traditional lithium-ion batteries are no longer able to keep up with the growing need for energy storage efficiency in areas like electric cars and renewable energy storage.
Li Tonglin
doaj   +1 more source

Assessment of the Oxidative Desulfurization of Middle Distillate Surrogate Fuels with Spectroscopic Techniques

Journal of Analytical Methods in Chemistry, 2020
The oxidative desulfurization of five (5) model sulfur compounds and eleven (11) surrogate blends was investigated using the hydrogen peroxide (H2O2)-acetic acid (CH3COOH) system.
Eleni Syntyhaki, Anastasia Detsi, Dimitrios Karonis   +2 more
doaj   +1 more source

Perspectives on strategies for improving ultra-deep desulfurization of liquid fuels through hydrotreatment: Catalyst improvement and feedstock pre-treatment

Frontiers in Chemistry, 2022
Reliance on crude oil remains high while the transition to green and renewable sources of fuel is still slow. Developing and strengthening strategies for reducing sulfur emissions from crude oil is therefore imperative and makes it possible to ...
Tendai O. Dembaremba, Siphumelele Majodina, Ryan S. Walmsley, Adeniyi S. Ogunlaja, Zenixole R. Tshentu   +4 more
doaj   +1 more source

Modulating the sulfurization procedure to decrease by-product formation for one-step catalytic synthesis of sulfur-containing chemicals

Fuel Processing Technology
The one-step synthesis of sulfur-containing chemicals, methanethiol (CH3SH), from syngas and hydrogen sullfide (H2S) mixtures shows the enormous potential for extending the application of both C1 chemistry and sulfur resource recycling and utilization ...
ZhiZhi Xu, Jian Fang, Min Luo, Dedong He, Dingkai Chen, Jichang Lu, Yongming Luo   +6 more
doaj   +1 more source