Mahmoud Hamzaoui

ORCID: 0000-0002-4201-9055
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Research Areas
  • Chromatography in Natural Products
  • Natural product bioactivities and synthesis
  • Analytical Chemistry and Chromatography
  • Pharmacological Effects of Natural Compounds
  • Plant biochemistry and biosynthesis
  • Essential Oils and Antimicrobial Activity
  • Phase Equilibria and Thermodynamics
  • Microbial Metabolic Engineering and Bioproduction
  • Edible Oils Quality and Analysis
  • Spectroscopy and Chemometric Analyses
  • Phytase and its Applications
  • Chemical Reactions and Isotopes
  • Dyeing and Modifying Textile Fibers
  • Probiotics and Fermented Foods
  • Botanical Research and Applications
  • Lignin and Wood Chemistry
  • Catalysis for Biomass Conversion
  • Phytochemical Studies and Bioactivities
  • Proteins in Food Systems
  • Biofuel production and bioconversion
  • Dye analysis and toxicity
  • Glycosylation and Glycoproteins Research
  • Protein Hydrolysis and Bioactive Peptides
  • Advanced Chemical Sensor Technologies
  • Phytochemistry and Biological Activities

Celabor
2020-2023

National and Kapodistrian University of Athens
2014-2017

Institut de Chimie Moléculaire de Reims
2012-2013

Université de Reims Champagne-Ardenne
2011-2013

Centre National de la Recherche Scientifique
2011-2013

Because of their highly complex metabolite profile, the chemical characterization bioactive natural extracts usually requires time-consuming multistep purification procedures to achieve structural elucidation pure individual metabolites. The aim present work was develop a dereplication strategy for identification metabolites directly within mixtures. Exploiting polarity range metabolites, principle rapidly fractionate multigram quantity crude extract by centrifugal partition extraction...

10.1021/ac403223f article EN Analytical Chemistry 2014-02-20

In this work, a cascade approach to obtain different valuable fractions from lemon peels waste was optimised using microwave-assisted processes. Microwave-assisted hydrodistillation (MAHD) with Clevenger apparatus firstly used the essential oil (LEO). The remaining residue then submitted extraction (MAE) extract pigment (LP). A Box-Behnken design evaluate influence of ethanol concentration, temperature and time in LP terms yield colour intensity. Optimal conditions for were 80% (

10.3390/foods9101493 article EN cc-by Foods 2020-10-19

In this work, lipids and bioactive compounds from tomato seed by-products were extracted compared by using advanced extraction techniques, such as microwave-assisted (MAE) supercritical fluid (SFE). The influence of different parameters, including temperature (T), time (t) solvent volume (V) for MAE well pressure (P) flow rate (F) SFE-CO2, was evaluated on oil (TSO) yield fatty acids composition response surface methodology (RSM). Optimum conditions 56.2 °C, 29.0 min, 67.6 mL, whereas 60.2...

10.3390/foods11162408 article EN cc-by Foods 2022-08-11

In the present work, anthocyanin (ACN) hybrid nanopigments were synthetized by using a natural pomegranate dye (PD) and calcined hydrotalcite (HT) montmorillonite (MMT) nanoclays. A wide colour gamut was obtained with MMT-based ranging from reddish to bluish hues caused structural transformations of ACNs at different pH values. However, buffer effect observed HT obtaining samples similar final regardless synthesis conditions. Nanopigments added biomordant extracted peels showed compared...

10.3390/polym13121966 article EN Polymers 2021-06-14

Rapeseed meal (RSM), a by-product of rapeseed oil extraction, is currently used for low-value purposes. With biorefinery approach, proteins may be extracted and recovered high-end uses to fully exploit their nutritional functional properties. This study reports the application RSM protein isolate, main output biorefining process aimed at recovering high-value molecules from meal, as supplement texture-modified (TM) food designed elderly people with mastication dysphagia problems. The...

10.3390/foods12061326 article EN cc-by Foods 2023-03-20

Subcritical water tunes the molar mass and substitution pattern of complex xylans from corn fibre, preserving bound ferulic monomers dimers.

10.1039/d0gc02897e article EN cc-by Green Chemistry 2020-01-01

ABSTRACT Introduction Tree bark represents an interesting source of bioactive molecules for the discovery new pharmaceutical agents. However, detailed screening secondary metabolites in crude extracts is often hampered by presence tannins, which are difficult to separate from other plant constituents. Objective In present study, a centrifugal partition extraction (CPE) method was developed order fractionate extract Anogeissus leiocarpus Guill. & Perr. (Combretaceae). Methods A...

10.1002/pca.2418 article EN Phytochemical Analysis 2013-02-21

Sophorolipids represent an important class of natural surfactants with a variety environmental, cosmetic, and pharmaceutical applications. Despite their promising physicochemical biological properties, the use sophorolipids is hampered by lack information regarding individual structure‐activity relationships. The major difficulty in isolating pure arises from high complexity crude fermentation media composition strong structural similarities. In this work, centrifugal partition...

10.1002/jssc.201201033 article EN Journal of Separation Science 2013-03-20

Pistacia lentiscus L. var. chia is a native shrub in southern Chios (Greece) and cultivated for the production of Mastic gum, natural resin obtained after "hurting" trunk branches. This collected more than 2,500 years used traditional medicine various gastrointestinal disorders such as gastralgia, dyspepsia, peptic ulcer [1]. Moreover this perfumery, dentistry chewing well spice flavoring Mediterranean cuisine. The therapeutic properties mastic gum are due to their bioactive triterpenes that...

10.1055/s-0035-1565686 article EN Planta Medica 2015-11-25
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