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Article ? AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button. Tier 2 ? Original research — experimental, observational, or case-control study. Direct primary evidence. Gut & Microbiome Remediation Sign in to save

Microbial community acclimatization enhances bioplastics biodegradation and biogas production under thermophilic anaerobic digestion

Bioresource Technology 2023 25 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 45 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Elisa Clagnan, Mirko Cucina, Raveena Vilas Sajgule, Raveena Vilas Sajgule, Patrizia De Nisi, Patrizia De Nisi, Fabrizio Adani

Summary

Three sequential anaerobic digestion runs showed that microbial community acclimatization enhanced biodegradation and biogas production from starch-based and polylactic acid bioplastics, demonstrating that inoculum adaptation is key to improving bioplastic treatment in anaerobic systems.

Polymers
PLA

This paper reports the results of a novel study of microbial acclimatization for bioplastics anaerobic degradation and conversion into biogas. Three sequential anaerobic digestion (AD) runs were carried out to favour microbial acclimatization to two different bioplastics, starch-based (SBS) and polyactic-acid (PLA). AD of SBS and PLA bioplastics was favoured by the acclimatization of the inoculum to the substrate after each run of AD. SBS conversion into biogas increased by 52 % (from 94 to 143 NL kgVS<sup>-1</sup>) and it was correlated with the enhanced growth of starch degrading bacteria such as Hydrogenispora, Halocella and Haloplasma. PLA anaerobic degradation increased by 97 % (from 395 to 779 NL<sub>biogas</sub> kgVS<sup>-1</sup>) and it was related to the acclimatization of known PLA-degraders such as Tepidimicrobium, Methanothermobacter and Tepidanaerobacter. Microbial acclimatization appears a suitable and low-cost strategy to enhance bioplastics circularity by promoting their anaerobic biodegradation and conversion into biogas.

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