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AFM observation of ultrathin microfibrils in fruit tissues

Cellulose (London), 2010-02, Vol.17 (1), p.13-18 [Peer Reviewed Journal]

Springer Science+Business Media B.V. 2009 ;Cellulose is a copyright of Springer, (2009). All Rights Reserved. ;ISSN: 0969-0239 ;EISSN: 1572-882X ;DOI: 10.1007/s10570-009-9361-6

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Title:
AFM observation of ultrathin microfibrils in fruit tissues
Author: Niimura, Hiroshi ; Yokoyama, Tomoya ; Kimura, Satoshi ; Matsumoto, Yuji ; Kuga, Shigenori
Subjects: Atomic force microscopy ; Bioorganic Chemistry ; Cellulose ; Cellulose fibers ; Ceramics ; Chemistry ; Chemistry and Materials Science ; Composites ; Glass ; Mica ; Microscopes ; Natural Materials ; NMR ; Nuclear magnetic resonance ; Organic Chemistry ; Physical Chemistry ; Polymer Sciences ; Polysaccharides ; Sodium hydroxide ; Strawberries ; Substrates ; Sugars ; Sustainable Development ; Ultrafines ; X-ray diffraction
Is Part Of: Cellulose (London), 2010-02, Vol.17 (1), p.13-18
Description: Polysaccharide microfibrils in fruit tissue of higher plants (strawberry, peach, and rambutan) were examined by atomic force microscopy (AFM). For preserving native cellulose microfibrils, a combination of 2% NaClO₂ and 4% NaOH extraction was applied to the materials. This corresponds to mild alkali extractin of holocellulose, and denoted here as weak alkali-resistant polysaccharide, WARP. The amount of neutral sugars corresponded to 53-95% of that of WARP. Glucose was the most abundant in the neutral sugars, being 74-87%. AFM examination of microfibrils dispersed on mica substrate allowed accurate determination of fibril widths as 1.0-2.0 nm. Their straight fibrillar shape and the results of X-ray diffraction and infrared spectroscopy indicate that these fibrils are cellulose. These results constitute direct evidence for existence of ultrafine cellulose microfibrils hitherto assumed from X-ray diffraction and NMR analyses.
Publisher: Dordrecht: Dordrecht : Springer Netherlands
Language: English
Identifier: ISSN: 0969-0239
EISSN: 1572-882X
DOI: 10.1007/s10570-009-9361-6
Source: Alma/SFX Local Collection
ProQuest Central

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AFM observation of ultrathin microfibrils in fruit tissues

Springer Science+Business Media B.V. 2009 ;Cellulose is a copyright of Springer, (2009). All Rights Reserved. ;ISSN: 0969-0239 ;EISSN: 1572-882X ;DOI: 10.1007/s10570-009-9361-6

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