Results 171 to 180 of about 1,463 (207)

A molecular orbital study on the conformation of enniatin B

Biochemical and Biophysical Research Communications, 1973
Abstract Molecular orbital calculations using the PCILO method are performed on the conformation of the symmetrical form of enniatin B. The values of the Φ and ψ angles found for the preferred conformation agree closely with the results of X-ray study of the K + complex of enniatin B.
B, Maigret, B, Pullman
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Mechanism of depsipeptide formation catalyzed by enniatin synthetase

Biochemical and Biophysical Research Communications, 1983
Covalently bound intermediates of enniatin B synthesis could be isolated from enniatin synthetase by treatment with performic acid. By comparison with products of mild alkaline cleavage of authentic enniatin B they could be identified as the dipeptide D-2-hydroxyisovaleryl-N-methylvaline and the corresponding tetrapeptide.
R, Zocher, U, Keller, H, Kleinkauf
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THE ENNIATIN IONOPHORES. CONFORMATION AND ION BINDING PROPERTIES

International Journal of Peptide and Protein Research, 1974
The ability of enniatins to bind alkali metal, alkaline earth metal and certain transition metal ions in solution has been investigated. The complexes have been shown to form in 1:1, 2:1 and 3:2 macrocycle:cation ratios; their stability constants have been determined, and the conditions favoring their formation have been established. The enniatins were
Y A, Ovchinnikov, V T, Ivanov, A V, Evstratov, I I, Mikhaleva, V F, Bystrov, S L, Portnova, T A, Balashova, E N, Meshcheryakova, V M, Tulchinsky   +8 more
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Fusaproliferin, beauvericin and enniatins: occurrence in food – a review

World Mycotoxin Journal, 2012
The present review summarises data on the prevalence and concentration of fusaproliferin, beauvericin and enniatins in small grains, maize and processed grain-based foods. These fungal secondary metabolites possess interesting biological activities and are presently often referred to as 'emerging mycotoxins'. They have been considered as less important
SANTINI, ANTONELLO, G. Meca, S. Uhlig, RITIENI, ALBERTO   +3 more
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Effects of technological processes on enniatin levels in pasta

Journal of the Science of Food and Agriculture, 2015
AbstractBACKGROUNDPotential human health risks posed by enniatins (ENs) require their control primarily from cereal products, creating a demand for harvesting, food processing and storage techniques capable to prevent, reduce and/or eliminate the contamination.
Ana B, Serrano, Guillermina, Font, Jordi, Mañes, Emilia, Ferrer   +3 more
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Fate of enniatins and deoxynivalenol during pasta cooking

Food Chemistry, 2016
The fate of deoxynivalenol and enniatins was studied during cooking of commercially available dry pasta in the Netherlands in 2014. Five samples containing relatively high levels of deoxynivalenol and/or enniatins were selected for the cooking experiment.
de Nijs, Monique, van den Top, Hester, de Stoppelaar, Joyce, Lopez Sanchez, Patricia, Mol, Hans   +4 more
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Assessment of cytotoxic and genotoxic effects of enniatin-A in vitro

Food Additives & Contaminants: Part A, 2018
Enniatin A (EN-A) is a Fusarium mycotoxin which is a common contaminant in grains and especially in maize and it causes serious loss of product. The aim of this study was to investigate the cytotoxic effects using 3-(4,5-dimethylthiazolyl-2)-2,5 diphenyltetrazolium bromide (MTT) assay in human cervix carcinoma (HeLa) cell line, and genotoxic effects of
YÜZBAŞIOĞLU, DENİZ, ÜNAL, FATMA, YILMAZ, SERKAN, Erikel, Esra, MAMUR, SEVCAN   +4 more
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Conformation of enniatine B in nonpolar solvents

Chemistry of Natural Compounds, 1974
1. The relative positions of the CαH and N-Ch3 signals in the1H NMR spectra of different conformers of enniatine B have been evaluated. 2. The1H NMR spectra [tri-(N-methyl-D-valyl-Cα-d)] enniatine B have been investigated. 3. The spatial structure of enniatine B in nonpolar media has been determined.
V. T. Ivanov, A. V. Evstratov, I. I. Mikhaleva, N. D. Abdullaev, V. F. Bystrov, Yu. A. Ovchinnikov   +5 more
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Über die Chemie des Enniatins

Experientia, 1947
Judging by the physical and chemical properties and “bacterial spectra”, the antibiotic substance, Enniatin, previously isolated from a strain ofFusarium by the authors, appears to be identical with that which was recently reported byCook et al. derived from another strain and designated by them as Lateritiin-I, although the reported empirical formulae
Pl. A. Plattner, U. Nager
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Synthesis of enniatine A

Bulletin of the Academy of Sciences, USSR Division of Chemical Science, 1963
M. M. Shemyakin, Yu. A. Ovchinnikov, A. A. Kiryushkin, V. T. Ivanov   +3 more
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