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Natural Product Research
Formerly Natural Product Letters
Volume 35, 2021 - Issue 24
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Short Communications

Cyttaria hariotii E.Fisch. as a promising source of pullulan and Mn(II)-pullulan complexes for Mn-deficiency remediation in winter cereals

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Pages 6158-6162 | Received 11 May 2020, Accepted 13 Sep 2020, Published online: 14 Oct 2020
 

Abstract

Pullulan, a water-soluble polysaccharide consisting of maltotriose units used in the preparation of edible films and drug delivery, is generally produced from starch by Aureobasidium pullulans (de Bary & Löwenthal) G.Arnaud fungus. In this article, the characterisation of an alternative pullulan source − the stromata of Cyttaria hariotii E.Fisch. fungus − by elemental analysis, infrared spectroscopy and thermal analysis techniques is reported. With a view to a possible valorisation of this pullulan and its derivatives as bioactive formulations in agriculture, low-molecular-weight pullulan (<7 kDa) complexes with Mn(II), suitable for the remediation of Mn-deficiencies in winter cereal by foliar application, were synthesised and characterised by mass spectrometry.

Graphical Abstract

Disclosure statement

The authors declare no conflict of interest.

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