Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Ferulic acid dehydrodimers as structural elements in cereal dietary fibre
Autore:
Renger, A; Steinhart, H;
Indirizzi:
Univ Hamburg, Inst Biochem & Food Chem, D-20146 Hamburg, Germany Univ Hamburg Hamburg Germany D-20146 Food Chem, D-20146 Hamburg, Germany
Titolo Testata:
EUROPEAN FOOD RESEARCH AND TECHNOLOGY
fascicolo: 6, volume: 211, anno: 2000,
pagine: 422 - 428
SICI:
1438-2377(2000)211:6<422:FADASE>2.0.ZU;2-1
Fonte:
ISI
Lingua:
ENG
Soggetto:
OXIDATIVE CROSS-LINKING; PLANT-CELL WALLS; DEHYDRODIFERULIC ACIDS; PHENOLIC CONSTITUENTS; WHEAT INTERNODES; DIFERULIC ACID; FIBER; IDENTIFICATION; PEROXIDASE; MECHANISM;
Keywords:
esterified and etherified phenolic acids; ferulic acid dehydrodimers; dietary fibre; cereals; gas chromatography-mass spectrometry;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
45
Recensione:
Indirizzi per estratti:
Indirizzo: Steinhart, H Univ Hamburg, Inst Biochem & Food Chem, Grindelallee 117, D-20146 Hamburg,Germany Univ Hamburg Grindelallee 117 Hamburg Germany D-20146ermany
Citazione:
A. Renger e H. Steinhart, "Ferulic acid dehydrodimers as structural elements in cereal dietary fibre", EUR FOOD RE, 211(6), 2000, pp. 422-428

Abstract

Investigations on insoluble dietary fibre (IDF) of wheat, rye, barley, oat, maize, rice and miller led to the identification of several new dehydrodimers of ferulic acid (DFA). These compounds arise from 8-8', 8-5', 8-O-4' and 5-5' coupling. Esterified phenolics were set free by mild alkali hydrolysis, total amounts of phenolics (ester- plus etherified) were determined byalkali hydrolysis under pressure. Phenolic acids were analysed by gas chromatography - mass spectrometry (GC-MS) as their trimethylsilyl (TMS) derivatives and by high performance liquid chromatography - diode array detection(HPLC-DAD). In esterified form 8-8' aryl DFA and 5-5' DFA dominate in mostcereal IDF with, together, 45-60% of the DFA sum. More than 60% of total bound DFA are involved in ether Linkages. Highest amounts of esterified as well as etherified DFA are estimated in millet, followed by maize. DFA contents of wheat, rye and barley are about two- to threefold lower than in miller but about twofold higher than in oat or rice.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 21/09/20 alle ore 06:16:45