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. 2023 Mar 28;14:1134754. doi: 10.3389/fpls.2023.1134754

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Copyright © 2023 Sanyal, Kumar, Pattanayak, Kar and Bishi

This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

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The general structure of raffinose family oligosaccharides (RFOs) and their related families. (A) RFOs are α(1-6) galactosyl substituted derivatives of the sucrose molecule, forming a non-reducing oligosaccharide. Raffinose, Stachyose and Verbascose are the major RFOs members in plants. (B) RFOs isomers with galactosidic linkages at other carbons of glucose (Umbelliferose), fructose (Planteose and Sesamose), or raffinose (Lychnose and Isolychnose). These classes do not fall under the RFOs. Structures were drawn with ChemDraw (version 12.0.2) software.