Orange peel composition, biopolymer extraction, and applications in paper and packaging sector: A review

Sustainable Chemistry and Pharmacy, Год журнала: 2025, Номер 43, С. 101908 - 101908

Опубликована: Янв. 20, 2025

Язык: Английский

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Utilization of orange peel waste for sustainable amino acid production by Corynebacterium glutamicum

Frontiers in Bioengineering and Biotechnology, Год журнала: 2024, Номер 12

Опубликована: Июль 10, 2024

Oranges are the most processed fruit in world–it is therefore apparent that industrial production of orange juice generates large quantities peel as a by-product. Unfortunately, management waste leads to economic and environmental problems. Meanwhile, use sustainable raw materials for bulk chemicals, such amino acids, becoming increasingly attractive. To address both issues, this study focused on material media preparation acids by engineered Corynebacterium glutamicum . C. grew pure hydrolysate (OPH) growth was enhanced addition nitrogen source pH buffer. Inhibitory effects combination high concentrations OPH, (NH 4 ) 2 SO , MOPS buffer wild-type strain (WT), were overcome tyrosine-producing AROM3. Genetic modifications we identified allow improved rates under these conditions included deletions vanillin dehydrogenase gene vdh ʟ-lactate ldhA 19 genes comprising cluster cg2663-cg2686. A inhibiting compound present OPH 5-(hydroxymethyl)furfural (HMF). We being primarily responsible oxidation HMF its acid 5-hydroxymethyl-2-furancarboxylic (HMFCA), formation HMFCA reduced 97% upon deletion WT. In addition, showed limitations could be adjusting preparation, using cheap ammonia water KOH neutralization after acidic hydrolysis. Overall, developed medium based cultivation demonstrated successful exemplary ʟ-arginine, ʟ-lysine, ʟ-serine, ʟ-valine ʟ-tyrosine.

Язык: Английский

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Trends in Enzyme Production from Citrus By-Products

Processes, Год журнала: 2025, Номер 13(3), С. 766 - 766

Опубликована: Март 6, 2025

Citrus fruit production generates substantial by-products, primarily from juice processing, which represent significant environmental and economic challenges. However, these residues, rich in polysaccharides, flavonoids, essential oils, enzymes, offer an untapped resource for biotechnological applications. This review explores the potential of citrus by-products as substrates enzyme production, focusing on key industrial enzymes such cellulases, pectinases, xylanases, ligninases, lipases, proteases. Various microbial strains have demonstrated ability to convert residues into high-value through solid-state submerged fermentation. The optimization fermentation conditions—including temperature, pH, moisture content, carbon-to-nitrogen ratio—further enhances enzymatic yields. valorization waste aligns with circular economy principles, reducing impacts while supporting sustainable bioproduct development food, biofuel, pharmaceutical, textile industries. Future research should focus scaling up using improve feasibility advance biorefineries.

Язык: Английский

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Valorization of Orange Peel Waste as a Potential Substrate for the Fermentative Production of Extracellular Laccase from Aspergillus Niger ISL-09 and Determination of its Kinetic Parameters

Waste and Biomass Valorization, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 23, 2024

Язык: Английский

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