Topic
Esterase
About: Esterase is a research topic. Over the lifetime, 7622 publications have been published within this topic receiving 168270 citations.
Papers published on a yearly basis
Papers
More filters
TL;DR: Haemolymph of Manduca sexta fifth instar larvae contains a high esterase activity capable of hydrolyzing Hyalophora cecropia C18 juvenile hormone (JH) but isopropyl esters and the (2Z)-isomer of JH were not affected.
56 citations
TL;DR: Acinetobacter O16, a psychrophilic species, produced extracellular lipase (measured by hydrolysis of olive oil, tributyrin, or beta-naphthyl laurate) when grown on a complex medium (peptone plus yeast extract) and lipase formation was greatly affected by nutrient conditions.
Abstract: Acinetobacter O16, a psychrophilic species, produced extracelullar lipase (measured by hydrolysis of olive oil, tributyrin, or β-naphthyl laurate) when grown on a complex medium (peptone plus yeast...
56 citations
TL;DR: Both lipase and esterase activities were present in intestinal contents of all newborns studied, from the first day of life to the second, in contrast to adults given a test meal, where both activities decreased markedly in infants on feeding.
Abstract: Both lipase and esterase activities were present in intestinal contents of all newborns studied, from the first day of life. In adults given a test meal lipase activity increased and esterase activity remained unchanged. In contrast, both activities decreased markedly in infants on feeding. During the digestion of the test meal the lipase activity in intestinal contents of the infants was much lower than in adults (ratio of median values 1:27) and the esterase activity was also several fold lower (ratio of median values 1:1.3). Speculation Newborn infants often absorb lipids less efficiently than adults. One contributing factor may be that their incompletely developed pancreas responds to feedings with comparatively low outputs of lipolytic enzymes. The newborn may be more dependent than adults on auxiliary sources of lipase activity such as the pharyngeal lipase and/or the bile-stimulated lipase in human milk.
56 citations
TL;DR: SDS-PAGE analysis has revealed that plants grown under NaCl showed induction or repression in the synthesis of few polypeptides and the esterase patterns of both stems and leaves were less influenced by NaCl in comparison to those of roots.
Abstract: The ability of peanut (Arachis hypogaea L.) to grow at high concentrations of NaCl may be due to the alteration in gene expression. SDS-PAGE analysis has revealed that plants grown under NaCl showed induction (127 and 52 kDa) or repression (260 and 38 kDa) in the synthesis of few polypeptides. In addition, nine different esterase isoenzymes were detected in embryos of seeds germinated in 105 mM NaCl, whereas only five of them were detected in the embryos of untreated seeds. On the other hand, in the cotyledons, the esterase pattern was not affected by NaCl concentration. The esterase patterns of both stems and leaves were less influenced by NaCl in comparison to those of roots. The lipid contents, and fresh and dry masses were increased up to 45 mM NaCl and decreased at higher concentrations.
56 citations
TL;DR: Results indicate that human HSL, together with other lipolytic carboxylesterases, are active on short chain esters and hydrolyze water insoluble trioctanoin, vinyl laurate and olive oil, whereas the action of EST2, AFEST, protein RV1399C and non-lipolyticCarboxylesTERases is restricted to solutions of short chain substrates.
56 citations