Results 11 to 20 of about 136,021 (344)
Plant sesquiterpene lactones [PDF]
arXivSesquiterpene lactones (STLs) are a prominent group of plant secondary metabolites predominantly found in the Asteraceae family and have multiple ecological roles and medicinal applications. This review describes the ecological significance of STLs, highlighting their roles in plant defense mechanisms against herbivory and as phytotoxins, alongside ...
Olivia Agatha +3 more
arxiv +4 more sources
Bulletin of the Agricultural Chemical Society of Japan, 1959 α-Exo-unsaturated-γ-butyrolactones were prepared. Reduction of α-benzylidene succinic acid esters with lithium aluminum hydride afford 2-benzylidene-1,4-butanediols. Manganese dioxide oxidation of glycols followed by silver oxide oxidation and lactonization afford α-benzylidene-γ-butyrolactones. Thus α-benzylidene-, α-anisylidene-, α-veratrylidene-, α-(
Kyôhei Yamashita, Masanao Matsui
openalex +9 more sources
Structure of Mokko Lactone and Dehydrocostus Lactone
Chemical and Pharmaceutical Bulletin, 1964 Hiroshi Hikino +3 more
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Microbial Reduction of Ketopantoyl Lactone to Pantoyl Lactone [PDF]
Applied Microbiology, 1974 The results of a microbial survey study have shown that the ability to reduce added ketopantoic acid (or ketopantoyl lactone) and accumulate pantoic acid (or pantoyl lactone) in the growth medium is widespread among diverse fungi. The reductions generally proceeded with less than full stereoselectivity.
Dorothy G. Bradley +2 more
openaire +2 more sources
Antimicrobial Activity of Lactones
Antibiotics, 2022 The development of bacterial resistance to antibiotics and the consequent lack of effective therapy is one of the biggest problems in modern medicine. A consequence of these processes is an urgent need to continuously design and develop novel antimicrobial agents. Among the compounds showing antimicrobial potential, lactones are a group to explore. For
Marcelina Mazur, Dorota Masłowiec
openaire +3 more sources
Analysis of putative resistance gene loci in UK field populations of Haemonchus contortus after six years of macrocyclic lactone use [PDF]
, 2016 Sheep farmers in the UK rely on strategic anthelmintic use to treat and control gastrointestinal roundworms in their flocks. However, resistance to these drugs is now widespread and threatens the sustainability of sheep production.
Devaney, Eileen +5 more
core +1 more source
Carbocations and the Complex Flavor and Bouquet of Wine: Mechanistic Aspects of Terpene Biosynthesis in Wine Grapes. [PDF]
, 2015 Computational chemistry approaches for studying the formation of terpenes/terpenoids in wines are presented, using five particular terpenes/terpenoids (1,8-cineole, α-ylangene, botrydial, rotundone, and the wine lactone), volatile compounds (or their ...
Pemberton, Ryan P +2 more
core +5 more sources
Nine New and Five Known Polyketides Derived from a Deep Sea-Sourced Aspergillus sp. 16-02-1
Marine Drugs, 2014 Nine new C9 polyketides, named aspiketolactonol (1), aspilactonols A–F (2–7), aspyronol (9) and epiaspinonediol (11), were isolated together with five known polyketides, (S)-2-(2′-hydroxyethyl)-4-methyl-γ-butyrolactone (8), dihydroaspyrone (10 ...
Xiu-Wen Chen +5 more
doaj +1 more source
Research Progress on the Sources and Preparation Methods of Chiral Lactones [PDF]
Shipin Kexue, 2023 γ- and δ-lactones are important flavor compounds, which are widely used in foods and daily chemical flavors. Due to the chiral centers in the molecules, the aroma characteristics of the two enantiomers of each of the lactones are quite different, which ...
WANG Wei, WANG Jingyu, XIN Xuan, REN Wenbin, BAI Weidong, MAO Yue
doaj +1 more source
Evaluation of a new high-throughput method for identifying quorum quenching bacteria [PDF]
, 2013 Quorum sensing (QS) is a population-dependent mechanism for bacteria to synchronize social behaviors such as secretion of virulence factors. The enzymatic interruption of QS, termed quorum quenching (QQ), has been suggested as a promising alternative ...
Bossier, Peter +6 more
core +2 more sources