Zobrazeno 1 - 10
of 29
pro vyhledávání: '"Heinz-Jürgen Bertram"'
Publikováno v:
CHIMIA, Vol 55, Iss 5 (2001)
Natural flavour compounds can be obtained by a number of processes, one of the most important of which is the enzymatic conversion of natural substrates. The immobilised lipase from the yeast Candida antarctica, is capable of transesterifying Stillin
Externí odkaz:
https://doaj.org/article/760f7d5445984822986df6f648b44fa9
Autor:
Martina Herrmann, Holger Joppe, Berthold Weber, Heinz-Jürgen Bertram, Beate Hartmann, Claus Oliver Schmidt
Publikováno v:
European Food Research and Technology. 226:755-760
An ethanolic extract of Chamomilla recutita [L.] Rauschert was analyzed by the hyphenated techniques HPLC/MS and HPLC/NMR, speeding up a reliable and comprehensive characterization of the main constituents in an extract from chamomile flowers. In add
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b221726551b5239d2358b6e3522067f
https://doi.org/10.1007/s00217-007-0587-y
https://doi.org/10.1007/s00217-007-0587-y
Autor:
Heinz-Jürgen Bertram, Detlef Stöckigt, Berthold Weber, Claus Oliver Schmidt, Bernd Hölscher, Birgit Kohlenberg, Beate Hartmann
Publikováno v:
Journal of Essential Oil Research. 18:607-610
An oil of the piperitone type of Eucalyptus dives produced from trees cultivated in South Africa was analyzed by GC and GC/MS. Seventy-three constituents were characterized with piperitone ranging from 29.2% to 64.9%, depending on whether the oil was
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8aad0e061ca36869415b30f253c57c41
https://doi.org/10.1080/10412905.2006.9699180
https://doi.org/10.1080/10412905.2006.9699180
Autor:
Heinz-Jürgen Bertram, Jakob Ley
Publikováno v:
European Journal of Lipid Science and Technology. 105:529-535
The antioxidative and radical scavenging activity of the 3,4-dihydroxymandelic acid (DHMA) amides of hexylamine, 2-ethylhexylamine, octylamine, and cyclohexylamine was determined by several physicochemical test systems. The amides were synthesized by
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c9b6ce5d5661511ad813b557578a56c9
https://doi.org/10.1002/ejlt.200300836
https://doi.org/10.1002/ejlt.200300836
Publikováno v:
Journal of Agricultural and Food Chemistry. 50:5897-5902
The decarboxylated noradrenaline metabolite 3,4-dihydroxymandelic acid [DHMA, 2-(3,4-dihydroxyphenyl)-2-hydroxyacetic acid] occurs in different mammalian tissues, especially in the heart. To elucidate the physiological function of DHMA, the antioxida
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c24518761e7d63e512c4e701c9399d7e
https://doi.org/10.1021/jf025667e
https://doi.org/10.1021/jf025667e
Autor:
Jakob Ley, Heinz-Jürgen Bertram
Publikováno v:
European Journal of Lipid Science and Technology. 104:319-323
Several oximes and oximeethers of hydroxylated benzaldehydes and acetophenones were investigated for their antioxidative potential and compared with further standards. Radical scavenging activity was determined using a photometric assay based on the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3fc825e2a409c867a2197c606721927a
https://doi.org/10.1002/1438-9312(200206)104:6<319::aid-ejlt319>3.0.co
https://doi.org/10.1002/1438-9312(200206)104:6<319::aid-ejlt319>3.0.co
Autor:
Jakob Ley, Heinz-Jürgen Bertram
Publikováno v:
Tetrahedron. 57:1277-1282
Six hydroxymandelic acid amides of phenolic amines were synthesized by condensation of 3,4-dihydroxymandelic or 4-hydroxy-3-methoxymandelic acid N-succinimidyl esters and several phenolic benzylamino and phenethylamino hydrochlorides in moderate to g
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f29d523c6df1796c8f4da79d29e4d692
https://doi.org/10.1016/s0040-4020(00)01136-4
https://doi.org/10.1016/s0040-4020(00)01136-4
Autor:
Jakob Ley, Heinz-Jürgen Bertram, Maria Blings, Susanne Paetz, Petra Hoffmann-Lücke, Gerhard Krammer
Publikováno v:
Journal of agricultural and food chemistry. 56(15)
In order to find new flavor modifiers, various short chain gingerdione derivatives were synthesized as structural analogues of the known bitter masker homoeriodictyol and evaluated by a sensory panel for masking and sweetness enhancing activities. 1-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2f93ce9ffece15e56694e6895e561628
https://pubmed.ncbi.nlm.nih.gov/18598048
https://pubmed.ncbi.nlm.nih.gov/18598048
Autor:
Jakob P. Ley, Maria Blings, Susanne Paetz, Günter Kindel, Kathrin Freiherr, Gerhard E. Krammer, Heinz-Jürgen Bertram
Publikováno v:
Sweetness and Sweeteners ISBN: 9780841274327
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cdf31651bed86c40ab6ad81a667c070a
https://doi.org/10.1021/bk-2008-0979.ch025
https://doi.org/10.1021/bk-2008-0979.ch025
Autor:
Stefan Brennecke, Klaus Herbrand, Gerd Lösing, Gerhard Krammer, Margit Liebig, Franz Josef Hammerschmidt, Claus Oliver Schmidt, Ian Gatfield, Heinz-Jürgen Bertram
Publikováno v:
Journal of agricultural and food chemistry. 55(19)
This study describes the identification of six allyl esters in a garlic cheese preparation and in a commercial cream cheese. The extracts were prepared by liquid/liquid extraction and concentrated by the SAFE process. The identification of the allyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5b66cdbd8ddf757fcbd645f5a17703a9
https://pubmed.ncbi.nlm.nih.gov/17715891
https://pubmed.ncbi.nlm.nih.gov/17715891