Evidence map›Paper›PMID 38662141›Full record

ArticleBiodegradation2024

Valorization of waste engine oil to mono- and di-rhamnolipid in a sustainable approach to circular bioeconomy.

Shailee Gaur, Mohan Jujaru, Revanth Vennu, Suresh Gupta, Amit Jain

Abstract read
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In one paragraph

Article in Biodegradation, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Review
  2. Recent fermentation developments for improved rhamnolipid production.Applied microbiology and biotechnology · 2025
    Review
  3. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Shailee GaurDepartment of Chemical Engineering, Birla Institute of Technology and Science, Pilani, Pilani Campus, Pilani, Rajasthan, 333031, India.
Mohan JujaruDepartment of Chemical Engineering, Birla Institute of Technology and Science, Pilani, Pilani Campus, Pilani, Rajasthan, 333031, India.
Revanth VennuDepartment of Chemical Engineering, Birla Institute of Technology and Science, Pilani, Pilani Campus, Pilani, Rajasthan, 333031, India.
Suresh GuptaDepartment of Chemical Engineering, Birla Institute of Technology and Science, Pilani, Pilani Campus, Pilani, Rajasthan, 333031, India.
Amit JainDepartment of Chemical Engineering, Birla Institute of Technology and Science, Pilani, Pilani Campus, Pilani, Rajasthan, 333031, India. amitjain@pilani.bits-pilani.ac.in.ORCID 0000-0002-7184-9322

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

This study aims to valorize waste engine oil (WEO) for synthesizing economically viable biosurfactants (rhamnolipids) to strengthen the circular bioeconomy concept. It specifically focuses on investigating the influence of key bioprocess parameters, viz. agitation and aeration rates, on enhancing rhamnolipid yield in a fed-batch fermentation mode. The methodology involves conducting experiments in a stirred tank bioreactor (3 L) using Pseudomonas aeruginosa gi |KP 163922| as the test organism. Central composite design and response surface methodology (CCD-RSM) are employed to design the experiments and analyze the effects of agitation and aeration rates on various parameters, including dry cell biomass (DCBM), surface tension, tensoactivity, and rhamnolipid yield. It is also essential to determine the mechanistic pathway of biosurfactant production followed by the strain using complex hydrophobic substrates such as WEO. The study reveals that optimal agitation and aeration rates of 200 rpm and 1 Lpm result in the highest biosurfactant yield of 29.76 g/L with minimal surface tension (28 mN/m). Biosurfactant characterization using FTIR,

Indexed as

BioreactorsGlycolipidsPseudomonas aeruginosaSurface-Active AgentsBiodegradation, EnvironmentalBiomassFermentationPetroleumSurface TensionGlycolipidsPetroleumrhamnolipidSurface-Active AgentsAerationAgitationCircular bioeconomyFed-batch bioreactorRhamnolipidWaste engine oil

Identifiers

PMID38662141

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.