Results 91 to 100 of about 374 (125)

The structure of limonin

Experientia, 1960
Die Struktur desepi-Limonol-jodoacetates (C26H31O8) COCH2I, wurde durch dreidimensionale Rontgenanalyse bestimmt. Es gelang, die Lage samtlicher Atome in zwei kristallographisch unabhangigen, jedoch chemisch identischen Molekeln zu ermitteln. Dieses Resultat stellt eine vollstandige Bestimmung der Konstitution und der Stereochemie des Limonins dar.
S. Arnott, A. W. Davie, J. M. Robertson, G. A. Sim, D. G. Watson   +4 more
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Gender differences in limonin pharmacokinetics in rats

European Journal of Drug Metabolism and Pharmacokinetics, 2005
In the present study, the pharmacokinetics of limonin (LM) were investigated in male and female rats. LM concentrations in the plasma were determined after the oral administration of 36 mg/kg LM or after intravenous (i.v.) injection of LM 3.6 mg/kg respectively.
Y, Liang, L, Xie, X D, Liu, Y Z, Hu, T, Lu, G J, Wang   +5 more
openaire   +2 more sources

An Improved Enzyme Immunoassay for Limonin

Journal of Food Science, 1988
ABSTRACT Performance of the previously reported enzyme immunoassay for determination of limonin in citrus juice was improved by stabilization of anti‐limonin‐antibody‐coated microtitration wells with 1% solution of ovalbumin and polyvinyl alcohol.
BHANU P. RAM, LARRY JANG, LORELEI MARTINS, PRITHIPAL SINGH   +3 more
openaire   +1 more source

Limonin ameliorates cardiovascular dysfunction and remodeling in hypertensive rats

Life Sciences, 2023
Limonin is a tetracyclic triterpenoid isolated from citrus fruits. Here, the effects of limonin on cardiovascular abnormalities in nitric oxide-deficient rats induced by Nω-Nitrol-arginine methyl ester (L-NAME) were explored.Male Sprague Dawley rats were given L-NAME (40 mg/kg, drinking water) for 3 weeks and then treated daily with polyethylene glycol
Metee, Iampanichakul, Prapassorn, Potue, Siwayu, Rattanakanokchai, Putcharawipa, Maneesai, Juthamas, Khamseekaew, Wannapa, Settheetham-Ishida, Poungrat, Pakdeechote   +6 more
openaire   +2 more sources

Degradation of limonin by entrappedRhodococcus fascians cells

Biotechnology Letters, 1989
Limonin degradingRhodococcusfascians was immobilized by entrapment in alginate, k-carrageenan, agarose and polyacrylamide gels. Except this latter, gels were used both with and without polyethyleneimine treatment followed by glutaraldehyde crosslinking.
C. Mart�nez-Madrid, A. Manj�n, J. L. Iborra   +2 more
openaire   +1 more source

A limonin‐degrading enzyme in citrus albedo

Journal of the Science of Food and Agriculture, 1971
AbstractExperiments are described which demonstrate the presence in the albedo of Navel and Valencia oranges of a system with the properties of an enzyme capable of degrading limonin, the bitter principle of orange juice.
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Preparation of Limonin Monoclonal Antibody and Establishment of a Sensitive IcELISA for Analyzing Limonin in Citrus and Herbal Samples

Food Chemistry
Limonin is an intensely bitter and highly oxidized tetracyclic triterpenoid secondary metabolite, which is abundant in the Rutaceae and Meliaceae, especially in Citrus. In order to detect limonin content in complex substrates such as citrus and traditional Chinese medicine, monoclonal antibodies specifically recognizing limonin were prepared and an ...
Di, Sun, Yifan, Liu, Zihui, Jin, Bo, Xu, Yaqi, Jin, Qiyang, Zhao, Yue, He, Jing, Li, Yaohai, Zhang, Yongliang, Cui   +9 more
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The chemical assay of limonin, the bitter principle of oranges

Journal of the Science of Food and Agriculture, 1966
AbstractA method is presented for the determination of limonin, the bitter principle of oranges, based upon selective extraction and conversion to the dinitrophenylhydrazone, which is separated by thin‐layer chromatography for estimation by spectrophotometry.
B V, Chandler, J F, Kefford
openaire   +2 more sources

On the non-enzymatic liberation of limonin and C17-epilimonin from limonin-17-β-d-glucopyranoside in orange juice

European Food Research and Technology, 2008
Limonin is well-known to induce the so-called “delayed” bitterness which is developing during standing and/or processing of orange juice. The objective of this study was to investigate the hydrolytic liberation of limonin from its precursor limonin-17-β-d-glucopyranoside in aqueous model solutions and orange juice samples. Quantitative model studies on
Anneke Glabasnia, Thomas Hofmann
openaire   +1 more source

Development and validation of a decigram-scale method for the separation of limonin from limonin glucoside by C-18 flash chromatography

Food Chemistry, 2009
A preparative method for decigram-scale polishing of limonin glucoside (1) with regard to removing traces of limonin (2), the main bitter principle in Citrus, is reported. During the method development and up-scaling stages, sample purity, sample size, solvent amounts, and drying conditions were varied.
Andrew P. Breksa, Klaus Dragull
openaire   +1 more source