Hamed I. Hamouda

ORCID: 0000-0002-5980-0796
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About
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Research Areas
  • Biofuel production and bioconversion
  • Enzyme Production and Characterization
  • Microbial Metabolic Engineering and Bioproduction
  • Seaweed-derived Bioactive Compounds
  • Nanoparticles: synthesis and applications
  • biodegradable polymer synthesis and properties
  • Graphene and Nanomaterials Applications
  • Polysaccharides and Plant Cell Walls
  • Genomics, phytochemicals, and oxidative stress
  • Anaerobic Digestion and Biogas Production
  • Bone Tissue Engineering Materials
  • Lipid Membrane Structure and Behavior
  • Microplastics and Plastic Pollution
  • Studies on Chitinases and Chitosanases
  • Biochemical and biochemical processes
  • Spectroscopy and Chemometric Analyses
  • Biochemical effects in animals
  • Supramolecular Self-Assembly in Materials
  • Protein Hydrolysis and Bioactive Peptides
  • Magnesium Oxide Properties and Applications
  • Phytochemistry and Bioactive Compounds
  • Nanotechnology research and applications
  • Biotin and Related Studies
  • Natural Products and Biological Research
  • Advanced Polymer Synthesis and Characterization

China Light Industry Press (China)
2023-2025

Egyptian Petroleum Research Institute
2015-2025

Ocean University of China
2021-2025

Chinese Academy of Sciences
2020-2024

Dalian Institute of Chemical Physics
2023-2024

Qingdao Institute of Bioenergy and Bioprocess Technology
2018-2023

University of Chinese Academy of Sciences
2020-2021

Qingdao Center of Resource Chemistry and New Materials
2020

Surface-growing antibiotic-resistant pathogenic bacteria such as Escherichia coli and Staphylococcus aureus are emerging a global health challenge due to dilemmas in clinical treatment. Furthermore, their pathogenesis, including increasingly serious antimicrobial resistance biofilm formation, makes them challenging treat by conventional therapy. Therefore, the development of novel antivirulence strategies will undoubtedly provide path forward combatting these resistant bacterial infections....

10.1128/spectrum.00250-22 article EN cc-by Microbiology Spectrum 2022-07-19

In this article, Persea americana aqueous peels extract was used to synthesize silver nanoparticles in a simple and environmentally friendly manner. The properties of synthesized (AV-AgNPs) were studied via several techniques, including UV–vis spectroscopy, DLS, TEM, EDX, FTIR. UV–Vis spectra analysis revealed that the highest absorption peak occurred at 428 nm, providing strong evidence for forming AV-AgNPs. TEM results indicate AV-AgNPs uniformly dispersed, exhibiting spherical shape with...

10.1016/j.jscs.2024.101863 article EN cc-by-nc-nd Journal of Saudi Chemical Society 2024-04-20

Myrosinase is a biotechnological tool for the preparation of sulforaphane and sulforaphene with variety excellent biological activities. In this study, gene encoding novel glycoside hydrolase family 3 (GH3) myrosinase Rmyr from Rahnella inusitata was heterologously expressed in Escherichia coli BL21 (DE3). The purified shows highest activity at 40 °C pH 7.0; meanwhile, its half-life 30 reaches 12 days, indicating stability. Its sinigrin-, glucoraphenin-, glucoraphanin-hydrolyzing activities...

10.1021/acs.jafc.1c07646 article EN Journal of Agricultural and Food Chemistry 2022-02-03

Sulforaphane has garnered significant research attention owing to its potent and promising biological activities. Mining the highly active myrosinase is key preparing sulforaphane. In this study, a novel myrosinase, designated Semyr, was identified from Serratia plymuthica through sequence structural clustering analysis. The enzyme heterologously expressed in Escherichia coli, demonstrating sinigrin hydrolysis activity of 110.48 U/mg, which constitutes highest recombinant reported date. A...

10.1021/acs.jafc.5c00978 article EN Journal of Agricultural and Food Chemistry 2025-03-13

Three nanorods (NRs) of γ-AlOOH, γ-MnOOH, and α-Mn<sub>2</sub>O<sub>3</sub> were synthesized by controlled regimes applied as antimicrobial agents. Different microbial strains used for the assessments results approved highest activity NRs.

10.1039/d0dt01689f article EN Dalton Transactions 2020-01-01

This work investigated the effects of bioflavonoid hesperetin-7-rhamnoglucoside isolated from

10.1016/j.crmicr.2021.100103 article EN cc-by-nc-nd Current Research in Microbial Sciences 2021-12-29

To achieve effective separation and enrichment of bacteria, a novel synthetic scheme was developed to synthesize star-style boronate-functionalized copolymers with excellent hydrophilicity temperature pH responsiveness. A hydrophilic copolymer brush synthesized by combining surface-initiated atom-transfer radical polymerization amide reaction using bovine serum albumin as the core. The further modified introducing immobilizing fluorophenylboronic acids through an reaction, resulting in...

10.1021/acs.jafc.3c09129 article EN Journal of Agricultural and Food Chemistry 2024-05-31

Pichia veronae strain HSC-22 (accession number KP012558) showed a good tolerance to relatively high temperature, ethanol and sugar concentrations. Response surface optimization based on central composite design of experiments predicted the optimal values influencing parameters that affect production bioethanol from sugarcane molasses be as follows: initial pH 5, 25% (w : v) concentration, 35°C, 116 rpm, 60 h. Under these optimum operating conditions maximum batch fermenter scale was recorded...

10.1155/2015/905792 article EN Biotechnology Research International 2015-12-08

Microorganisms colonize plastics in the aquatic environment but their composition on used aquaculture remains poorly studied. play a significant role terms of water quality and health cultivated species. In current study, we explored microorganisms floating surrounding collected from ponds open areas. Using scanning electron microscopy, diversity microbial communities, primarily diatoms, bacteria were identified plastic surfaces. Additionally, epifluorescence microscopy revealed that...

10.3389/fmars.2022.895611 article EN cc-by Frontiers in Marine Science 2022-07-04

Fucoidan is one of the main polysaccharides brown algae and echinoderm, which has nutritional pharmacological functions. Due to low molecular weight exposure more sulfate groups, oligo-fucoidan or fucoidan oligosaccharides have potential for broader applications. In this research, a novel endo-α-1,4-L-fucoidanase OUC-FaFcn1 can degrade into was discovered from fucoidan-digesting strain Flavobacterium algicola 12,076. belongs glycoside hydrolases (GH) family 107 shows highest activity at 40...

10.3390/foods11071025 article EN cc-by Foods 2022-04-01

In an attempt to produce bioethanol as a renewable and natural energy resource promising alternative/complement conventional petrol (i.e., gasoline), 44 microbial isolates (12 yeast 32 bacterial strains) were isolated from molasses samples obtained some of the sugar factories in Egypt. Among obtained, only two (HSC-22 HSC-24) selected sugarcane (SCM) for their high fermentation capabilities, recording production ≈9.6 8.2 g/L with actual yield 0.48 0.41 g ethanol/g SCM, respectively, within...

10.1080/15567036.2015.1030050 article EN Energy Sources Part A Recovery Utilization and Environmental Effects 2016-08-02

Laminarin oligosaccharides (LOSs) with a specific degree of polymerization prepared through the laminarin degradation via laminarinase present more significant nutritional functions and application values. Human intestinal bacteria are promising potential producers novel carbohydrate-active enzymes unique properties. Here, glycoside hydrolase family 128 (GH128) OUC-BsLam26 from bacterium <em>Bacteroides </em>sp. CBA7301<em> </em>was heterologously expressed characterized. The recombinant...

10.26599/fshw.2024.9250008 article EN cc-by-nc-nd Deleted Journal 2024-02-01
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