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Journal Article

Journal Article

Structure elucidation of some proanthocyanidins in barley by 1H 270 MHz NMR spectroscopy [anthocyanogens, chromatography, procyanidin, prodelphinidin]  [1981]

Outtrup, H.; Schaumburg, K.; Carlsberg Lab., Copenhagen (Denmark) [Corporate Author]

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In the present paper the composition of proanthocyanidins isolated from barley is investigated. Separation by affinity chromatography and HPLC yields a large number of substances. Six of these have been isolated in this work. Based on the chromatographic preparation they are expected to be two dimers D1 and D2 and four trimeric substances T1 - T4. Studies by means of ('1)H NMR spectroscopy at 270 MHz confirmed D1 and D2 as being dimeric compounds, a prodelphinidin and procyanidin B(,3) respectively. The spatial structure of the prodelphinidin corresponds to procyanidin B(,3). The peracetates of all six compounds have also been studied by means of ('1)H NMR spectroscopy. By comparison with data for the analogous peracetates of (+)-catechin and (-)-epicatechin and with literature data, T1 - T4 have been identified as trimeric proanthocyanidins and their structures have been elucidated
From the journal
Carlsberg Research Communications (Denmark)
ISSN : 0105-1938

Bibliographic information

Language:
English
Type:
Summary
In AGRIS since:
1982
Volume:
46
Issue:
1
Start Page:
43
End Page:
52
All titles:
"Structure elucidation of some proanthocyanidins in barley by 1H 270 MHz NMR spectroscopy [anthocyanogens, chromatography, procyanidin, prodelphinidin]"@eng
Other:
"4 ill., 17 ref. Summary (En)"
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Bibliographic information

Language:
English
Type:
Summary
In AGRIS since:
1982
Volume:
46
Issue:
1
Start Page:
43
End Page:
52
All titles:
"Structure elucidation of some proanthocyanidins in barley by 1H 270 MHz NMR spectroscopy [anthocyanogens, chromatography, procyanidin, prodelphinidin]"@eng
Other:
"4 ill., 17 ref. Summary (En)"