Chemical and ultrastructural changes of ash wood thermally modified (TMW) using the thermo-vacuum process: II. Immunocytochemical study of the distribution of noncellulosic polysaccharides.
In: Holzforschung: International Journal of the Biology, Chemistry, Physics, & Technology of Wood, Jg. 69 (2015-07-01), Heft 5, S. 615-625
academicJournal
Zugriff:
Following structural and cytochemical studies (Part I) on thermally modified ash wood (TMW) by the thermo-vacuum (Termovuoto) process, changes in the distribution of noncellulosic polysaccharides have been investigated in TMW treated for 3 h at 220°C (TMW 3 h, 220°C ) by means of immunogold localization methods. Pectins (homogalacturonan, rhamnogalacturonan-I) and xyloglucan were significantly degraded in compound middle lamella (CML), including the middle lamella cell corner regions (CML cc ), of all xylem cells after thermal modification. Xylan and mannan degradation were also visible in fiber cell walls. In particular, degradation of mannan was very significant and showed variation between cell wall regions even within the same cell wall. The degradation of pectins was more significant than that of hemicelluloses. In summary, results suggest that each noncellulosic polysaccharide may have a different degradation process in ash TMWs. [ABSTRACT FROM AUTHOR]
Copyright of Holzforschung: International Journal of the Biology, Chemistry, Physics, & Technology of Wood is the property of De Gruyter and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Titel: |
Chemical and ultrastructural changes of ash wood thermally modified (TMW) using the thermo-vacuum process: II. Immunocytochemical study of the distribution of noncellulosic polysaccharides.
|
---|---|
Autor/in / Beteiligte Person: | Kim, Jong Sik ; Gao, Jie ; Terziev, Nasko ; Allegretti, Ottaviano ; Daniel, Geoffrey |
Zeitschrift: | Holzforschung: International Journal of the Biology, Chemistry, Physics, & Technology of Wood, Jg. 69 (2015-07-01), Heft 5, S. 615-625 |
Veröffentlichung: | 2015 |
Medientyp: | academicJournal |
ISSN: | 0018-3830 (print) |
DOI: | 10.1515/hf-2014-0149 |
Schlagwort: |
|
Sonstiges: |
|