Besides, integral data acquired by combining the two NMR spectra showed that the signals of C α –H α (δ C /δ H : 71.8/4.88) and C β –H β (δ C /δ H : 83.2/4.33 and 85.8/4.13) of structure A exhibited a decreasing trend or a small increase (table S4), implying that hot pressing does not promote the formation of β–O–4 from lignin degradation products.
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A superstrong, decarbonizing structural material enabled by microbe-assisted cell wall engineering via a biomechanochemical process.
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