Chemical Separation and Structural Identification of EOR-Active Compounds in Water-Soluble Petroleum Sulfonate

1983 ◽  
Author(s):  
K.S. Rajan ◽  
Govindan Chettur ◽  
K.I. Kamath
Keyword(s):  
Chemical Separation ◽  
Structural Identification ◽  
Water Soluble ◽  
Active Compounds ◽  
Petroleum Sulfonate

Herbicidal Characteristics and Structural Identification of the Potential Active Compounds from Streptomyces sp. KRA17-580

2020 ◽  
Vol 68 (52) ◽  
pp. 15373-15380
Author(s):  
Hye Jin Kim ◽  
Aung B. Bo ◽  
Jae Deok Kim ◽  
Young Sook Kim ◽  
Botir Khaitov ◽  
...  
Keyword(s):  
Structural Identification ◽  
Active Compounds ◽  
Streptomyces Sp

scholarly journals State and prospects of modern research in biotechnology of licens as a medicinal raw material

2021 ◽  
pp. 120-129
Author(s):  
E. F. Semyonova ◽  
I. M. Teplitskaya ◽  
M. A. Goncharov ◽  
D. A. Goncharov
Keyword(s):  
Usnic Acid ◽  
Biologically Active Compounds ◽  
Water Soluble ◽  
Biologically Active ◽  
Raw Material ◽  
Active Compounds ◽  
Alternaria Sp ◽  
Ancient Times ◽  
Methodological Approaches ◽  
Original Experimental Data

Based on the content analysis of the sources of patent and scientific literature on the biotechnology of lichens as a medicinal raw material, systematized modern information is provided, as well as original experimental data regarding the cultivation of botanical species of lichens of various ecological and geographical groups under controlled conditions. Since ancient times, lichens havebeen used as medicines and are included in the pharmacopoeias of various countries. At present, methodological approaches have been developed for the cultivation of lichens (genera Usnea, Rhinocarpon, Umbilicara ) and their components: phycobiont (genera Nostoc, Chlorella ), mycobiont ( Petrusaria pertiza, Leydea parasema, Alternaria sp.). The main biologically active compounds (usnic acid, lichenin, cetrarin, water-soluble vitamins, calcium oxalate) and the pharmacological effects caused by them (antimicrobial, stimulating appetite, enveloping, anti-inflammatory, anti-burn, regenerating). Biotechnological approaches can be implemented for species cloning, reproduction, creation of a bank of cell cultures of lichens and their components in order to preserve economically valuable producers in an active state and develop technologies for obtaining biomass and pharmacologically valuable biologically active compounds.

scholarly journals Enhanced toxicity of aerosol in fog conditions in the Po Valley, Italy

2017 ◽  
Vol 17 (12) ◽  
pp. 7721-7731 ◽  
Author(s):  
Stefano Decesari ◽  
Mohammad Hossein Sowlat ◽  
Sina Hasheminassab ◽  
Silvia Sandrini ◽  
Stefania Gilardoni ◽  
...  
Keyword(s):  
Urban Areas ◽  
Water Soluble ◽  
Atmospheric Particulate Matter ◽  
Rural Site ◽  
Activity Data ◽  
Active Compounds ◽  
Fog Water ◽  
Po Valley ◽  
Redox Active ◽  
Airborne Concentration

Abstract. While numerous studies have demonstrated the association between outdoor exposure to atmospheric particulate matter (PM) and adverse health effects, the actual chemical species responsible for PM toxicological properties remain a subject of investigation. We provide here reactive oxygen species (ROS) activity data for PM samples collected at a rural site in the Po Valley, Italy, during the fog season (i.e., November–March). We show that the intrinsic ROS activity of Po Valley PM, which is mainly composed of biomass burning and secondary aerosols, is comparable to that of traffic-related particles in urban areas. The airborne concentration of PM components responsible for the ROS activity decreases in fog conditions, when water-soluble species are scavenged within the droplets. Due to this partitioning effect of fog, the measured ROS activity of fog water was contributed mainly by water-soluble organic carbon (WSOC) and secondary inorganic ions rather than by transition metals. We found that the intrinsic ROS activity of fog droplets is even greater (> 2.5 times) than that of the PM on which droplets are formed, indicating that redox-active compounds are not only scavenged from the particulate phase, but are also produced within the droplets. Therefore, even if fog formation exerts a scavenging effect on PM mass and redox-active compounds, the aqueous-phase formation of reactive secondary organic compounds can eventually enhance ROS activity of PM when fog evaporates. These findings, based on a case study during a field campaign in November 2015, indicate that a significant portion of airborne toxicity in the Po Valley is largely produced by environmental conditions (fog formation and fog processing) and not simply by the emission and transport of pollutants.

scholarly journals Correction to Herbicidal Characteristics and Structural Identification of the Potential Active Compounds from Streptomyces sp. KRA17-580

2021 ◽  
Vol 69 (7) ◽  
pp. 2364-2364
Author(s):  
Hye Jin Kim ◽  
Aung Bo Bo ◽  
Jae Deok Kim ◽  
Young Sook Kim ◽  
Botir Khaitov ◽  
...  
Keyword(s):  
Structural Identification ◽  
Active Compounds ◽  
Streptomyces Sp

Determination of taste-active compounds of a bitter Camembert cheese by omission tests

2001 ◽  
Vol 68 (4) ◽  
pp. 675-688 ◽  
Author(s):  
ERWAN ENGEL ◽  
CHANTAL SEPTIER ◽  
NADINE LECONTE ◽  
CHRISTIAN SALLES ◽  
JEAN-LUC LE QUERE
Keyword(s):  
Soluble Fraction ◽  
Pure Water ◽  
Water Soluble ◽  
Soluble Extract ◽  
Small Peptides ◽  
Active Compounds ◽  
Significant Difference ◽  
Water Soluble Extract ◽  
Camembert Cheese

The taste-active compounds of a Camembert cheese selected for its intense bitterness defect were investigated. The water-soluble fraction (WSE) was extracted with pure water and fractionated by successive tangential ultrafiltrations and nanofiltration. The physicochemical assessment of these fractions led to the construction of a model WSE which was compared by sensory evaluation to the crude water-soluble extract, using a panel of 16 trained tasters. As no significant difference was perceived, this model WSE was then used directly or mixed with other cheese components for omission tests. Among the main taste characteristics of the WSE (salty, sour, umami and bitter), bitterness was found to be due to small peptides whose mass distribution was obtained by RPHPLC-MS (400–3000 Da) and whose taste properties are discussed.

Water-soluble polymers for binding hydrophobic biologically active compounds

2015 ◽  
Vol 64 (9) ◽  
pp. 2152-2159 ◽  
Author(s):  
M. L. Levit ◽  
O. V. Nazarova ◽  
T. N. Nekrasova ◽  
A. V. Dobrodumov ◽  
E. F. Panarin
Keyword(s):  
Biologically Active Compounds ◽  
Water Soluble ◽  
Biologically Active ◽  
Active Compounds ◽  
Water Soluble Polymers ◽  
Soluble Polymers
Sign in / Sign up

Export Citation Format

Share Document