Pectinic substances from <Emphasis Type="Italic">Aloe arborescens</Emphasis> |
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| Authors: | D N Olennikov A V Nazarova A V Rokhin |
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| Institution: | (1) Institute of General and Experimental Biology, Siberian Branch, Russian Academy of Sciences, 670047 Ulan-Ude, ul. Sakh′yanovoi, 6, Russia;(2) Siberian Institute of Plant Physiology and Biochemistry, Siberian Branch, Russian Academy of Sciences, 664033 Irkutsk, ul. Lermontova, 132, Russia;(3) Irkutsk State University, 664033 Irkutsk, ul. Lermontova, 123, Russia |
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| Abstract: | Pectinic substances were isolated in 3.82% yield of the fresh material mass from leaves of Aloe arborescens Mill. (Asphodelaceae). Fractionation over DEAE-cellulose produced the dominant polymer APS-3 of molecular weight
71.1 kDa, α]D20 +224.4°. Physicochemical methods established that APS-3 was a partially methoxylated and acetylated rhamnopolygalacturonan
consisting of α-(1→4)-bonded galacturonic acid and α-(1→2)-bonded rhamnopyranose in the main chain. Side substituents of single
galacto- and glucopyranose units were located on the C-3 atom of galacturonic acid. |
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