Valorization of Dextrose from Cassava Starch and Sugarcane Vinasse as Polyhydroxyalkanoates by Submerged Cultures of Cupriavidus necator: A Physicochemical–Biotechnological Approach DOI Creative Commons

Isabel Dorado,

L. B. Pineda,

Martha L. Ascencio-Galván

et al.

ChemEngineering, Journal Year: 2024, Volume and Issue: 8(4), P. 73 - 73

Published: July 23, 2024

The production of polyhydroxyalkanoates using submerged cultures Cupriavidus necator DSM 428 was evaluated low-cost substrates from agroindustry: (i) dextrose cassava starch and (ii) a mixture sugarcane vinasse the bioethanol industry starch. effects composition (2.5, 5.0, 7.5, 25, 50, 75% v/v) use raw activated carbon-pre-treated were assessed. results indicate that cultivations only reached 4.33 g/L biomass as dry cell weight poly(3-hydroxybutyrate) (PHB) 47.1%. Raw proportions in culture medium resulted total inhibition. Vinasse treated at same ratios led to range 1.7–4.44 g/L. higher PHB scenario obtained containing (7.5%), yielding 5.9 51% accumulation. produced characterized by XRD FTIR for an analysis crystalline structure chemical functional groups, respectively. EDS employed semi-quantitative composition, SEM used analyze morphology microgranules. DSC TGA analyses demonstrated thermal stability PHB.

Language: Английский

Biorefinery of sugarcane molasses for poly(3-hydroxybutyrate) fermentation and genomic elucidation of metabolic mechanism using Paracoccus sp. P2 DOI
Leizhen Zhao, Guang Sun, Minghui Zhai

et al.

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: 303, P. 140684 - 140684

Published: Feb. 3, 2025

Language: Английский

Citations

1
Valorization of Algal Biomass to Produce Microbial Polyhydroxyalkanoates: Recent Updates, Challenges, and Perspectives DOI Open Access

Anand Narayanasamy,

Sanjay K. S. Patel, Neha Singh

et al.

Polymers, Journal Year: 2024, Volume and Issue: 16(15), P. 2227 - 2227

Published: Aug. 5, 2024

Biopolymers are highly desirable alternatives to petrochemical-based plastics owing their biodegradable nature. The production of bioplastics, such as polyhydroxyalkanoates (PHAs), has been widely reported using various bacterial cultures with substrates ranging from pure biowaste-derived sugars. However, large-scale and economic feasibility major limiting factors. Now, algal biomass for PHA offers a potential solution these challenges significant environmental benefit. Algae, unique ability utilize carbon dioxide greenhouse gas (GHG) wastewater feed growth, can produce value-added products in the process and, thereby, play crucial role promoting sustainability. sugar recovery efficiency is variable depending on pretreatment procedures due inherent compositional variability among cell walls. Additionally, yields, composition, properties synthesized vary significantly microbial producers algal-derived Therefore, microalgal pretreatments synthesis copolymers still require considerable investigation develop an efficient commercial-scale process. This review provides overview discusses strategies enhance its properties, focusing managing GHGs sustainable future.

Language: Английский

Citations

6
Integrated bioprocess development for the biosynthesis and characterization of polyhydroxybutyrate extracted from Streptomyces nigra KDS4 DOI

Shivananda Behera,

Anu Bala, Surajit Das

et al.

Sustainable Chemistry and Pharmacy, Journal Year: 2025, Volume and Issue: 43, P. 101903 - 101903

Published: Jan. 13, 2025

Language: Английский

Citations

0
Development of an antimicrobial material made of graphene oxide, polylactic acid/polyhydroxybutyrate, and CuO nanoparticles and its reprocessing effect on its properties DOI Creative Commons

Sergio Quilaqueo,

Julio Bruna,

María José Galotto

et al.

Polymer Composites, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 21, 2025

Abstract In the present study nanocomposites made of polylactic acid (PLA), polyhydroxybutyrate (PHB), graphene oxide (GO), and copper (II) (CuO) nanoparticles on three compositions (1, 3 5 wt%), obtained through melt extrusion were developed. Properties in their first second processing evaluated, characterized colorimetry L*a*b*, Fourier‐transform infrared spectroscopy (FTIR), x‐ray diffraction (XRD), Differential scanning calorimetry (DSC), Thermogravimetric analysis (TGA), mechanical properties (ASTM D638 standard), electron microscopy–energy‐dispersive (SEM‐EDX) antimicrobial activity under dynamic contact with ATCC25922 Escherichia coli . The results presented variations color crystallinity between different nanocomposites. Additionally, a higher was observed containing CuO, achieving up to 100% bacterial reduction at 3% nanoparticle content. When evaluating influence thermic processing, it could be seen an acceleration degradation process polymeric chains addition improvement dispersion nanoparticles, which reduced agglomeration generated crystalline state Highlights exhibit high activity. GO CuO show tendency agglomerate. Reprocessing induces chain scission. also enhances matrix homogenization. nanofiller

Language: Английский

Citations

0
Statistical Design-Driven Optimization of Polyhydroxy-Butyrate (PHB) Production Using Sugarcane Bagasse by Brevibacterium sp. (PP989436) Strain DOI

R. Preethi Rathna,

Sharan Kishore,

M. Kulandhaivel

et al.

Journal of Polymers and the Environment, Journal Year: 2024, Volume and Issue: unknown

Published: Nov. 20, 2024

Language: Английский

Citations

1
Valorization of Dextrose from Cassava Starch and Sugarcane Vinasse as Polyhydroxyalkanoates by Submerged Cultures of Cupriavidus necator: A Physicochemical–Biotechnological Approach DOI Creative Commons

Isabel Dorado,

L. B. Pineda,

Martha L. Ascencio-Galván

et al.

ChemEngineering, Journal Year: 2024, Volume and Issue: 8(4), P. 73 - 73

Published: July 23, 2024

The production of polyhydroxyalkanoates using submerged cultures Cupriavidus necator DSM 428 was evaluated low-cost substrates from agroindustry: (i) dextrose cassava starch and (ii) a mixture sugarcane vinasse the bioethanol industry starch. effects composition (2.5, 5.0, 7.5, 25, 50, 75% v/v) use raw activated carbon-pre-treated were assessed. results indicate that cultivations only reached 4.33 g/L biomass as dry cell weight poly(3-hydroxybutyrate) (PHB) 47.1%. Raw proportions in culture medium resulted total inhibition. Vinasse treated at same ratios led to range 1.7–4.44 g/L. higher PHB scenario obtained containing (7.5%), yielding 5.9 51% accumulation. produced characterized by XRD FTIR for an analysis crystalline structure chemical functional groups, respectively. EDS employed semi-quantitative composition, SEM used analyze morphology microgranules. DSC TGA analyses demonstrated thermal stability PHB.

Language: Английский

Citations

0