Complete oxidation of formaldehyde over a Pd/CeO2 catalyst at room temperature: tunable active oxygen species content by non-thermal plasma activation

2020 ◽  
Vol 10 (18) ◽  
pp. 6257-6265
Author(s):  
Kai Li ◽  
Jian Ji ◽  
Miao He ◽  
Haibao Huang
Keyword(s):  
Human Health ◽  
Thermal Plasma ◽  
Room Temperature ◽  
Active Oxygen Species ◽  
Active Oxygen ◽  
Complete Oxidation ◽  
Oxygen Species ◽  
Plasma Activation ◽  
Indoor Pollutant ◽  
Non Thermal Plasma

Formaldehyde is a main indoor pollutant and its removal is essential to protect human health and meet strict environmental regulations.

scholarly journals Active oxygen species adsorbed on the catalyst surface and its effect on formaldehyde oxidation over Pt/TiO2 catalysts at room temperature; role of the Pt valence state on this reaction?

RSC Advances ◽  
2018 ◽  
Vol 8 (7) ◽  
pp. 3626-3636 ◽  
Author(s):  
Geo Jong Kim ◽  
Sang Moon Lee ◽  
Sung Chang Hong ◽  
Sung Su Kim
Keyword(s):  
Valence State ◽  
Room Temperature ◽  
Reaction Rate ◽  
Catalyst Surface ◽  
Active Oxygen Species ◽  
Active Oxygen ◽  
Oxygen Species ◽  
Temperature Oxidation ◽  
Formaldehyde Oxidation

Two catalyst factors were identified that affected the reaction rate in the room temperature oxidation of HCHO.

Characterization and functional properties of new everbearing strawberry (Fragaria x ananasa Duch.) cultivar, ‘Summertiara’ berries

2014 ◽  
Vol 4 (1) ◽  
pp. 1 ◽  
Author(s):  
Takeshi Nagai ◽  
Misuzu Tamai ◽  
Masato Sato ◽  
Yasuhiro Tanoue ◽  
Norihisa Kai ◽  
...  
Keyword(s):  
Vitamin C ◽  
Sensory Evaluation ◽  
Functional Properties ◽  
Active Oxygen Species ◽  
Active Oxygen ◽  
Antihypertensive Activity ◽  
Oxygen Species ◽  
Total Anthocyanins ◽  
Strawberry Cultivar ◽  
The Stability

Background: In recent years, a new everbearing strawberry cultivar, ‘Summertiara’ was cultivated to supply the strawberries in pre-harvest season from July to October in Japan. For highly research and development of processing of this cultivar, ‘Summertiara’ berries, the objective of this study was to characterize these berries, with relation to chemical parameters, total phenols, total flavonoids, total vitamin C, and total anthocyanins, and was to investigate the solubility and the stability of anthocyanins from the berries. Moreover, the functional properties such as antioxidative activity, active oxygen species scavenging activity, and antihypertensive activity were also evaluated.Methods: Chemical analysis, colour measurement, and sensory evaluation of new everbearing strawberry cultivar, ‘Summertiara’ berries were performed. Next, the solubility of anthocyanins from the berries and stability of these against pH, temperature, and an incandescent lighting were investigated. Moreover, functional properties of the extracts prepared from berries were elucidated using 5 different methods.Results: The contents of water, proteins, lipids, carbohydrates, and ash were the same as those of other cultivar berries. The sugar-acid ratio in the berries was low; these were acidulous. By sensory evaluation, the main factors were vivid red colour, aroma, and acidity. The berries were rich in phenols, flavonoids, vitamin C, and anthocyanins. The anthocyanins of the berries became unstable by heat treatment and light exposures such as visible rays. On the other hand, the extracts prepared from the berries showed the functionalities such as antioxidant activity, active oxygen species scavenging activities, and antihypertensive activity.  Conclusions: The strawberry cultivar, ‘Summertiara’ berries were the most suitable for processing ingredient of strawberry-derived products with superior health promoting functionalities.Keywords: Summertiara, everbearing strawberry cultivar, characterization, sensory evaluation, color and storage, functional property

Identifying the Active Oxygen Species in SnO2 Based Gas Sensing Materials: An Operando IR Spectrsocopy Study

2015 ◽  
Vol 119 (21) ◽  
pp. 11792-11799 ◽  
Author(s):  
David Degler ◽  
Susanne Wicker ◽  
Udo Weimar ◽  
Nicolae Barsan
Keyword(s):  
Gas Sensing ◽  
Active Oxygen Species ◽  
Active Oxygen ◽  
Oxygen Species ◽  
Ir Spectrsocopy

Chromosome damage caused by enzymically generated active oxygen species

1983 ◽  
Vol 18 ◽  
pp. 47
Author(s):  
B.J. Phillips ◽  
T.E.B. James ◽  
D. Anderson
Keyword(s):  
Active Oxygen Species ◽  
Active Oxygen ◽  
Chromosome Damage ◽  
Oxygen Species

Nitric oxide and active oxygen species in severe sepsis and surgically stressed patients

Surgery Today ◽  
1995 ◽  
Vol 25 (9) ◽  
pp. 774-777 ◽  
Author(s):  
Katsuhisa Tanjoh ◽  
Atsuyuki Shima ◽  
Mitsuhiro Aida ◽  
Ryouichi Tomita ◽  
Yasuhiko Kurosu
Keyword(s):  
Nitric Oxide ◽  
Severe Sepsis ◽  
Active Oxygen Species ◽  
Active Oxygen ◽  
Oxygen Species
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