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. 2018 May 2;8:72. doi: 10.1186/s13568-018-0604-5

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© The Author(s) 2018

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

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Fig. 1 — Fluorescence emission spectra of BSA suspension at excitation wavelength 280 nm in presence of 0, 5, 10, 20, 30, 40 μmol/L (a–f) Cyanidin-3-O-arabinoside (a), Cyanidin-3-O-galactoside (b), Cyanidin-3-O-glucoside (c) and Cyanidin-3-O-Xyloside (d)