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. 2023 Dec 7;36(2):697–711. doi: 10.1007/s10811-023-03136-3

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Fig. 1 — Main disaccharide units within ulvan. Reproduced from (Kidgell et al. 2019). Glucuronic acid (blue), rhamnose 3-sulphate (red), iduronic acid (green), xylose (orange). Xylose can also contain a sulphate group, as seen in U2’S,3S