Oxidation of aromatic compounds in organic solvents with laccase from Trametes versicolor

1989 ◽  
Vol 31 (1) ◽  
Author(s):  
O. Milstein ◽  
B. Nicklas ◽  
A. H�ttermann
Keyword(s):  
Organic Solvents ◽  
Aromatic Compounds ◽  
Trametes Versicolor

scholarly journals Lignin Peroxidase Oxidation of Aromatic Compounds in Systems Containing Organic Solvents

1994 ◽  
Vol 60 (2) ◽  
pp. 459-466 ◽  
Author(s):  
Rafael Vazquez-Duhalt ◽  
Donald W. S. Westlake ◽  
Phillip M. Fedorak
Keyword(s):  
Organic Solvents ◽  
Lignin Peroxidase ◽  
Aromatic Compounds ◽  
Peroxidase Oxidation

Extraction of Essential oils from Cymbopogon citratus using Organic solvents

2021 ◽  
pp. 5709-5712
Author(s):  
Usharani B.
Keyword(s):  
Essential Oil ◽  
Essential Oils ◽  
Organic Solvents ◽  
Aromatic Compounds ◽  
Anticancer Agent ◽  
Vital Role ◽  
Phytochemical Analysis ◽  
Geometric Isomers ◽  
Cymbopogon Citratus ◽  
The Common

Essential oils are extracted from diverse plants and used in medicinal field for diverse conditions. The presence of unique aromatic compounds imparts aroma and medicinal values. Essential oil plays a vital role in pharmaceutical, cosmetics and also acts as rejuvenate. Though there are various plants from which essential oil are extracted, our study focuses on the extraction and comparison of the phytochemicals released from the fresh leaves of Cymbopogon citratus using two different organic solvents; (a). hexane (b) hexane and toluene in the ratio 1:1. Extraction was performed for 16 hours in Soxhlet extractor. The amount of oil obtained was weighed in both extractions and subjected to GC MS for phytochemical analysis. Results revealed that when the solvents hexane and toluene in the ratio 1:1 was used it gave a better yield of 3% from 5 gram of fresh leaves, while hexane yielded only 1.5%. The GC-MS analysis revealed that the compound released from both extractions are of diverse medicinal values and can be used in aromatherapy as rejuvenate. The compounds nerol (2,6 octadienal, 3,7 dimethyl.Z) and geraniol (2,6 octadienal, 3,7 dimethyl) are the common phytochemicals extracted .Nerol and geraniol are geometric isomers. Geraniol is reported as an efficient anticancer agent with additional properties of analgesic, antinflammatory and antiseptic values. Nerol is used as a fragrance. The compound 1 acetyl 4 hydroxy pyrrolidine 2 one is extracted when hexane and toluene were used for extraction in the ratio 1:1. It is reported to be anti-rheumatic and effective in the treatment of hips and joints. Hence it can be concluded that hexane and toluene in the ratio 1:1 can be used for extraction of oil considering its medicinal values and the increased % of extraction rather than using hexane alone.

scholarly journals Cyclic siloxanes conjugated with fluorescent aromatic compounds as fluoride sensors

2020 ◽  
Vol 1 (9) ◽  
pp. 3358-3368
Author(s):  
Nicha Prigyai ◽  
Supphachok Chanmungkalakul ◽  
Sutthiroj Thanyalax ◽  
Mongkol Sukwattanasinitt ◽  
Vuthichai Ervithayasuporn
Keyword(s):  
Organic Solvents ◽  
Aromatic Compounds ◽  
Blue Shift ◽  
Enhanced Fluorescence ◽  
Fluoride Ions ◽  
Cyclic Siloxanes

When cyclic siloxanes were exposed to fluoride ions, a blue-shift and enhanced fluorescence emissions appeared in most organic solvents.

ChemInform Abstract: Iodination of Aromatic Compounds by N-Iodosuccinimide in Organic Solvents in the Presence of H2SO4.

ChemInform ◽  
2010 ◽  
Vol 33 (49) ◽  
pp. no-no
Author(s):  
V. K. Chaikovski ◽  
V. D. Filimonov ◽  
V. I. Skorokhodov
Keyword(s):  
Organic Solvents ◽  
Aromatic Compounds

Dispersion of Ceramic Particles in Organic Liquids

1986 ◽  
Vol 73 ◽  
Author(s):  
P. D. Calvert ◽  
R. R. Lalanandham ◽  
M. V. Parish ◽  
J. Fox ◽  
H. Lee ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Organic Solvents ◽  
Aromatic Compounds ◽  
Coupling Agents ◽  
Organic Liquids ◽  
Oxide Ceramics ◽  
Ceramic Particles ◽  
Good Dispersion

ABSTRACTGood dispersion of oxide ceramics in organic solvents can be achieved using many different dispersants. Several types of dispersants, including fatty acids, coupling agents, polar aromatic compounds and polymers, are discussed to illustrate the important phenomena. Many new problems arise in actual slips during ceramics processing; these are briefly discussed.

Structural Elements of Sporopollenin from the Pollen of Torreya californica Torr. (Gymnospermae): Using the 1H-NMR Technique

1999 ◽  
Vol 54 (7-8) ◽  
pp. 492-495 ◽  
Author(s):  
Friedhelm Ahlers ◽  
Jörg Lambert ◽  
Rolf Wiermann
Keyword(s):  
Organic Solvents ◽  
1H Nmr ◽  
Aromatic Compounds ◽  
Enzymatic Treatment ◽  
Typha Angustifolia ◽  
Structural Elements ◽  
High Similarity ◽  
H Nmr

Abstract Sporopollenin was isolated and purified from pollen of the gymnospermae Torreya californica using an enzymatic treatment followed by extraction with organic solvents. 1H -NMR (ID and 2D) was used for analysis of this biopolym er and reveals the presence of three phenolic com pounds. Comparison with the analysis of sporopollenin from the angiospermae Typha angustifolia L. shows high similarity between the aromatic compounds

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