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A comprehensive assessment of the efficiency of various detoxification methods for acid hydrolysates obtained by two-stage hydrolysis with sulfurous acid at a concentration of 4 wt.% was carried out. It is established that the most effective purification scheme is a combination of two-stage treatment with the macroporous anion exchanger Resinex TPX-4503 followed by one-stage adsorption on alkaline activated carbon OU-A. It was concluded that the purified hydrolysates obtained are suitable for use as a carbon substrate in the biosynthesis of biopolymers, which opens prospects for the creation of closed biotechnological chains for processing wood waste into biodegradable materials.
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Ilalova et al. (2026) studied this question.
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