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Record W4408463923 · doi:10.4236/ojapps.2025.153037

Strategies to Enhance Polyhydroxyalkanoate Production from Sugarcane Molasses by <i>Cupriavidus</i> <i>necator</i> 11599

2025· article· en· W4408463923 on OpenAlex

Why this work is in the frame

A frame that forgets how it found something cannot be audited. These are the routes that admitted this work.

fundA Canadian funder is recorded on the work.
no affNo Canadian affiliation: this work is invisible to an affiliation-only frame.
No Canadian affiliation. An affiliation-only frame, the usual design, would never have seen this work. It is one of the works that make the case for inverting the frame.

Bibliographic record

VenueOpen Journal of Applied Sciences · 2025
Typearticle
Languageen
FieldMaterials Science
Topicbiodegradable polymer synthesis and properties
Canadian institutionsnot available
FundersAgence Française de DéveloppementEuropean CommissionInternational Development Research Centre
KeywordsCupriavidus necatorPolyhydroxyalkanoatesProduction (economics)Food scienceChemistryMathematicsBiologyBacteriaEconomics

Abstract

fetched live from OpenAlex

The production of polyhydroxyalkanoate (PHA) is an opportunity to gradually replace some plastics produced from fossil resources. The use of agro-industrial waste to produce PHA is one of the most efficient techniques, because the cost of production is high. Molasse is waste from the sugar industry. It has already been transformed into PHA via fermentation. But Cupriavidus necator is unable to produce PHA from raw molasse. So, several authors have tried to overcome this problem by pretreating molasse before production. In this study, fermentation was conducted in a shake-flask with Cupriavidus necator. Three types of pretreatments of molasse were conducted to enhance PHA production: i) sulfuric acid pretreatment; ii) enzymatic pretreatment and iii) pretreatment with activated carbon. Molasse pretreated accumulates up to a maximum PHA content of 64.56, 75.64 and 58.14 wt.% respectively with (15:100) ratio for acid, (15:100) ratio for enzyme and (20:100) ratio for activated carbon. The obtained result showed an enhancement of PHA production from sugarcane molasses.

Fetched live from OpenAlex and de-inverted. Abstracts are not stored in this database: the inverted indexes are 8.6 GB of the frame’s 9.3 GB of text, and the host has 13 GB free.

Full frame distilled prediction

Teacher imitation

Not calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.

metaresearch head score (Codex)0.004
metaresearch head score (Gemma)0.000
Version: codex-gemma-dda1882f352aValidation status: machine_predicted_unvalidated
Candidate categoriesMeta-epidemiology (narrow), Science and technology studies, Scholarly communication, Insufficient payload (model declined to judge)
Consensus categoriesnone
DomainCandidate signal: none · Consensus signal: none
Study designCandidate signal: Bench or experimental · Consensus signal: Bench or experimental
GenreCandidate signal: Empirical · Consensus signal: Empirical
Teacher disagreement score0.070
Threshold uncertainty score1.000

Codex and Gemma teacher scores by category

CategoryCodexGemma
Metaresearch0.0040.000
Meta-epidemiology (narrow)0.0010.001
Meta-epidemiology (broad)0.0010.000
Bibliometrics0.0000.002
Science and technology studies0.0020.001
Scholarly communication0.0030.003
Open science0.0040.001
Research integrity0.0000.000
Insufficient payload (model declined to judge)0.0010.000

Machine scores (provisional)

The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.

Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.

Opus teacher head0.017
GPT teacher head0.270
Teacher spread0.253 · how far apart the two teachers sit on this one work
Validation statusscore_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from it