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Size exclusion chromatography diagram of recycled β-1,3-glucan from the waste residue of G. lucidum. Samples were isolated using a Sephadex G-15 column (HMG: 11–13; LMG: 14–20; OSG: 23–29 tubes), and the sugar content of each tube was determined using phenol-sulfuric acid analysis (OD490 nm).
