Results 31 to 40 of about 9,393 (260)
A method for the rapid qualitative and quantitative analysis of 4,4-dimethyl sterols
Journal of Lipid Research, 1973 A simple and relatively rapid technique has been developed for the separation of several 4,4-dimethyl steryl acetates, some of which contain sterically hindered nuclear double bonds.
G.F. Gibbons +2 more
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Substrate specific hydrolysis of aromatic and aromatic-aliphatic esters in orchid tissue cultures
Acta Societatis Botanicorum Poloniae, 2014 We found that tissue cultures of higher plants were able, similarly as microorganisms, to transform low-molecular-weight chemical compounds. In tissue cultures of orchids (Cymbidium 'Saint Pierre' and Dendrobium phalaenopsis) acetates of phenols and ...
Agnieszka Mironowicz +2 more
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Frontiers in Microbiology, 2022 Eurasian spruce bark beetle, Ips typographus is a destructive pest of the Norway spruce (Picea abies). Recent outbreaks in Europe have been attributed to global warming and other anthropogenic impacts.
Anna Jirošová +5 more
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Reactivity of Acetates in Aqueous Alcohols [PDF]
, 2010 A series of X,Y-substituted benzhydryl acetates (1-3) were subjected to solvolysis in various binary methanol/water and ethanol/water mixtures at 25 °C. The LFER equation log k = sf(Ef + Nf) was used to derive the nucleofuge-specific parameters (Nf and ...
Kronja, Olga +3 more
core +2 more sources
Chiral phosphines in nucleophilic organocatalysis
Beilstein Journal of Organic Chemistry, 2014 This review discusses the tertiary phosphines possessing various chiral skeletons that have been used in asymmetric nucleophilic organocatalytic reactions, including annulations of allenes, alkynes, and Morita–Baylis–Hillman (MBH) acetates, carbonates ...
Yumei Xiao +3 more
doaj +1 more source
Marine Drugs, 2018 Hydroxypropyltrimethyl ammonium chitosan halogenated acetates were successfully synthesized from six different haloacetic acids and hydroxypropyltrimethyl ammonium chloride chitosan (HACC) with high substitution degree, which are hydroxypropyltrimethyl ...
Yingqi Mi +7 more
doaj +1 more source
New Cytotoxic and Antibacterial Compounds Isolated from the Sea Hare, Aplysia kurodai
Marine Drugs, 2005 : The extract of the sea hare, Aplysia kurodai, showed cytotoxicity against HeLa cells and antibacterial activity against Staphylococcus aureus. Bioassay-guided purification afforded four active compounds, which were identified to be laurinterol ...
Tomihisa Ohta +2 more
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Journal of Lipid Research, 1962 The retention volumes of 12 sterol acetates relative to cholesteryl acetate were determined on four well-characterized silica gels of different body structure.
Peter D. Klein, Patricia A. Szczepanik
doaj +1 more source
Acetate Metabolism and the Inhibition of Bacterial Growth by Acetate [PDF]
Journal of Bacteriology, 2019 High concentrations of organic acids such as acetate inhibit growth of Escherichia coli and other bacteria. This phenomenon is of interest for understanding bacterial physiology but is also of practical relevance. Growth inhibition by organic acids underlies food preservation and causes problems during high-density ...
Pinhal, Stéphane +3 more
openaire +4 more sources
FEBS Letters, EarlyView.Proteostasis and the gut microbiota play a key role in shaping host physiology. Microbiota‐derived metabolites, vitamins, and RNA modulate host proteostasis. Findings from model systems, including C. elegans, indicate microbes can either stabilize or disrupt host proteostasis.
Abhishek Anil Dubey, Maria Ermolaeva
wiley +1 more source