Structure of fructans from excised leaves of New Zealand flax

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dc.contributor.author Sims, Ian M.
dc.contributor.author Cairns, Andrew J.
dc.contributor.author Furneaux, Richard H.
dc.date.accessioned 2009-10-28T11:46:31Z
dc.date.available 2009-10-28T11:46:31Z
dc.date.issued 2001-06-01
dc.identifier.citation Sims , I M , Cairns , A J & Furneaux , R H 2001 , ' Structure of fructans from excised leaves of New Zealand flax ' Phytochemistry , vol 57 , no. 5 , pp. 661-668 . , 10.1016/S0031-9422(01)00089-9 en
dc.identifier.issn 0031-9422
dc.identifier.other PURE: 125803
dc.identifier.other dspace: 2160/3343
dc.identifier.uri http://hdl.handle.net/2160/3343
dc.description Sims, I. M., Cairns, A. J., Furneaux, R. H. (2001). Structure of fructans from excised leaves of New Zealand flax.   Phytochemistry, 57, (5), 661-668. Sponsorship: New Zealand Foundation for Research, Science and Technology and by the Biotechnology and Biological Sciences Research Council (UK). en
dc.description.abstract The accumulation of total water-soluble carbohydrate, and specifically sucrose and fructan, by excised leaves of Phormium tenax and P. cookianum (family Phormiaceae J. G. Agardh, order Asparagales) was investigated. Total water-soluble carbohydrate content of excised leaves of P. tenax and P. cookianum increased during 48 h of continuous illumination at an average rate of 1.3 and 0.9 mg g−1 fresh weight leaf per hour, respectively. The sucrose content of excised leaves increased throughout the experimental period. The fructan content of excised leaves of P. tenax increased slightly throughout the experimental period, whilst that of P. cookianum was variable and showed no overall change. Chemical and spectroscopic analysis of the fructans obtained from the two Phormium species showed that they were similar to each other and contained mostly 1-linked and terminal fructofuranosyl (Fruf) residues, together with smaller amounts of 6-linked Fruf, 1,6-branched Fruf, terminal and 6-linked glucopyranosyl residues. Separation of the fructans by thin-layer and high-performance anion-exchange chromatography revealed the presence of a complex mixture of fructo-oligosaccharides and higher molecular weight fructan. The branched structure of the fructans isolated from excised leaves of Phormium resembles that of fructans and fructo-oligosaccharides isolated from some related species within the order Asparagales (Agave vera cruz, Cordyline australis and Urginea maritima), but is distinct from the linear structure of fructans from others (Allium cepa and Asparagus officinalis). The structural heterogeniety of fructans within both the order Asparagales and superorder Liliiflorae may be a useful chemotaxonomic aid. en
dc.format.extent 8 en
dc.language.iso eng
dc.relation.ispartof Phytochemistry en
dc.subject Phormium tenax en
dc.subject Phormium cookianum en
dc.subject Phormiaceae en
dc.subject New Zealand flax en
dc.subject Water-soluble carbohydrate en
dc.subject Fructan en
dc.subject Accumulation en
dc.subject Structure en
dc.title Structure of fructans from excised leaves of New Zealand flax en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1016/S0031-9422(01)00089-9
dc.contributor.institution Institute of Biological, Environmental and Rural Sciences en
dc.description.status Peer reviewed en


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