Hydrolysis behavior of regenerated celluloses with different degree of polymerization under microwave radiation.
← Research streamRegenerated celluloses with lower degree of polymerization (DP) showed higher hydrolysis reactivity under dilute-acid catalysis with microwave radiation. The highest reported sugar yield was 59.2% for DP 23 at 160 C for 15 min, while the lowest yield was 32.…
Study snapshot
Abstract
This work studied the hydrolysis behavior of regenerated celluloses (RCs) with different degree of polymerization (DP) by using the catalyst of dilute acid under microwave radiation. Results showed that the DP had a considerable influence on hydrolysis of cellulose. The reactivity of RCs was significantly improved when DP was lower than 51. The highest sugar yield of 59.2% was achieved from RC with lowest DP of 23 at 160 °C for 15 min. But the lowest yield of 32.6% was obtained when RC with highest DP of 132 was used. Recrystallization of cellulose was found to hinder the further hydrolysis particularly with the high DP. The effect of recrystallization can be reduced by the decrease of DP of RCs. This research demonstrates that the DP of RCs plays a crucial role on hydrolysis and it provides a preliminary guide based on DP to find a suitable pretreatment method for cellulose hydrolysis.
AI evidence extraction
Structured fields below were generated from the paper’s abstract and metadata to make the evidence easier to inspect. Automated extraction may be incomplete or incorrect; verify important details against the original paper.
Main findings
Regenerated celluloses with lower degree of polymerization (DP) showed higher hydrolysis reactivity under dilute-acid catalysis with microwave radiation. The highest reported sugar yield was 59.2% for DP 23 at 160 C for 15 min, while the lowest yield was 32.6% for DP 132; recrystallization hindered further hydrolysis particularly at higher DP.
Outcomes measured
- cellulose hydrolysis reactivity
- sugar yield
- effect of degree of polymerization (DP) on hydrolysis
- recrystallization during hydrolysis
View raw extracted JSON
{
"study_type": "other",
"exposure": {
"band": null,
"source": "microwave radiation (process heating)",
"frequency_mhz": null,
"sar_wkg": null,
"duration": "15 min"
},
"population": null,
"sample_size": null,
"outcomes": [
"cellulose hydrolysis reactivity",
"sugar yield",
"effect of degree of polymerization (DP) on hydrolysis",
"recrystallization during hydrolysis"
],
"main_findings": "Regenerated celluloses with lower degree of polymerization (DP) showed higher hydrolysis reactivity under dilute-acid catalysis with microwave radiation. The highest reported sugar yield was 59.2% for DP 23 at 160 \u0000C for 15 min, while the lowest yield was 32.6% for DP 132; recrystallization hindered further hydrolysis particularly at higher DP.",
"effect_direction": "unclear",
"limitations": [],
"evidence_strength": "insufficient",
"confidence": 0.74,
"peer_reviewed_likely": "yes",
"keywords": [
"microwave radiation",
"regenerated cellulose",
"degree of polymerization",
"dilute acid",
"hydrolysis",
"sugar yield",
"recrystallization"
],
"suggested_hubs": []
}AI-extracted fields are generated from the abstract and metadata and may be incomplete or incorrect. This material is for informational purposes and is not medical advice.
Identifiers and source
DOI: 10.1016/j.biortech.2015.05.036
PubMed: 25997012