1995年7月
COMPARATIVE CHARACTERIZATION OF DIOXANE-SOLUBLE LIGNINS RELEASED BY BALL-MILLING AND BY SHEEP DIGESTION FROM FORAGE GRASSES
JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE
- ,
- ,
- ,
- 巻
- 68
- 号
- 3
- 開始ページ
- 383
- 終了ページ
- 388
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1002/jsfa.2740680318
- 出版者・発行元
- JOHN WILEY & SONS LTD
Faecal soluble lignin (FSL), extracted from the faeces of sheep that received orchardgrass and timothy, were compared with 90% dioxane-soluble lignins released by ball milling (MHL) and by subsequent enzymatic hydrolysis (EHL) from the same grasses. FSL contained much less carbohydrate and esterified p-coumaric and ferulic acids than MHL and EHL. Although no considerable differences were found in the yields of vanillin and syringaldehyde produced by nitrobenzene oxidation, the molar ratio of syringaldehyde to vanillin was higher for FSL than for MHL and EHL. Such differences in chemical properties among the lignin preparations were confirmed by C-13-NMR spectroscopy. FSL had a lower molecular size compared with MHL and EHL. Results indicated that syringyl-rich lignin fragments with less phenolic acid esters, probably depolymerisation products of the grass lignins, were released by digestion in sheep from the forage grasses.
- リンク情報
- ID情報
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- DOI : 10.1002/jsfa.2740680318
- ISSN : 0022-5142
- Web of Science ID : WOS:A1995RJ08500017