Ahmed M. Mustafa

ORCID: 0000-0002-1533-1553
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About
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Research Areas
  • Phytochemicals and Antioxidant Activities
  • Phytochemistry and Biological Activities
  • Essential Oils and Antimicrobial Activity
  • Natural product bioactivities and synthesis
  • Fermentation and Sensory Analysis
  • Coffee research and impacts
  • Natural Antidiabetic Agents Studies
  • Tea Polyphenols and Effects
  • Plant biochemistry and biosynthesis
  • Antioxidant Activity and Oxidative Stress
  • Plant chemical constituents analysis
  • Genomics, phytochemicals, and oxidative stress
  • Cholinesterase and Neurodegenerative Diseases
  • Food Chemistry and Fat Analysis
  • Phytochemical compounds biological activities
  • Cannabis and Cannabinoid Research
  • Medicinal Plant Research
  • Plant responses to water stress
  • Microencapsulation and Drying Processes
  • Plasma Applications and Diagnostics
  • Nuts composition and effects
  • GABA and Rice Research
  • Advanced Chemical Sensor Technologies
  • Nanoparticles: synthesis and applications
  • Nanocomposite Films for Food Packaging

Università di Camerino
2013-2025

Zagazig University
2018-2024

Agricultural Research Corporation
2007-2016

University College London
2015

National Hospital for Neurology and Neurosurgery
2015

Al-Baath University
2009

In a world where an eco-friendlier approach is becoming more and necessary, it essential to reduce waste production reuse residues of the company’s supply chain. Coffee silverskin (CS) spent coffee ground (SCG), two by-products production, are important sources bioactive compounds and, for this, some authors have proposed their in nutraceutical, food, cosmetic sector. However, potential enzyme inhibitory properties been poorly investigated. Hence, objective current work was study enzymatic...

10.3390/foods9060713 article EN cc-by Foods 2020-06-02

Several species within the genera Cassia or Senna have a treasure of traditional medicines worldwide and can be promising source bioactive molecules. The objective present study was to evaluate phenolic content antioxidant enzyme inhibition activities leaf methanolic extracts C. fistula L., grandis S. alexandrina Mill., italica Mill. two spp. contained higher total polyphenolic (42.23-49.75 mg GAE/g) than spp., had significantly (p ˂ 0.05) highest concentration. On other hand, showed...

10.3390/molecules27175590 article EN cc-by Molecules 2022-08-30

Pure Brew represents a real innovation because it allows one to obtain fast-filter coffee with an espresso machine without the need for barista purchase additional equipment. This study investigated difference between Brew, French Press, V60 and AeroPress in terms of physical chemical characteristics, extraction yields, volatile compounds by GC-MS bioactive molecules UHPLC-MS resulting coffee, studying also powder particle size. Finally, main results showed that is comparable other methods...

10.1016/j.lwt.2023.114471 article EN cc-by-nc-nd LWT 2023-01-13

Diabetes mellitus (DM) is a metabolic disease characterized by high blood sugar level that can cause severe complications to the organism or even death when not treated. However, certain dietary habits and foods may have beneficial effects on this condition. A polyphenolic-rich extract (containing hyperoside, isoquercitrin, quercetin, ellagic acid, vanillic acid) of Tageres erecta L. (T. erecta) was obtained from yellow orange flowers using an ethanolic Soxhlet extraction. These extracts...

10.1007/s13105-023-00953-5 article EN cc-by Journal of Physiology and Biochemistry 2023-03-24

Water-resistant and environmentally friendly sodium-alginate-based films have been investigated to develop functional materials extend the food’s shelf-life. A water-stable alginate-based film was prepared, employing both internal external gelation approach in presence of CaCl2. To apply this food packaging thus preserve quality, aim work is perform a chemical physical characterization proposed materials, evidencing main features stability under different conditions. Water contact angle...

10.3390/ijms241411462 article EN International Journal of Molecular Sciences 2023-07-14

Spinal cord (SC) atrophy, i.e. a reduction in the SC cross-sectional area (CSA) over time, can be measured by means of image segmentation using magnetic resonance imaging (MRI). However, methods have been limited factors relating to reproducibility or sensitivity change. The purpose this study was evaluate fully automated method (PropSeg), and compare semi-automated active surface (AS) method, healthy controls (HC) people with multiple sclerosis (MS). MRI data from 120 were retrospectively...

10.1016/j.nicl.2015.11.001 article EN cc-by NeuroImage Clinical 2015-11-10

Solvent-free microwave-assisted extraction (MAE) is a green method capable of boosting the yield and quality profile hemp essential oil when compared with other conventional techniques. During this process, two by-products are produced, namely aqueous residue containing bioactive phenolics residual deterpenated biomass, which can be used for further purification phytocannabinoids. To date, industry has not utilized these products, although they valuable food, cosmetic, nutraceutical...

10.1002/jsfa.11971 article EN cc-by Journal of the Science of Food and Agriculture 2022-04-29

Strawberry is the most consumed berry fruit worldwide due to its unique aroma and flavor. Drying fruits produce a powder represents one of possible conservation methods extend their shelf-life. The aim present study was compare influence freezing different drying on volatile profile strawberry using HS-SPME/GC–MS method, in addition analysis jam volatiles. A total 165 compounds were identified, accounting for 85.03–96.88% compositions. Results PCA showed that each process affected way,...

10.3390/molecules26144153 article EN cc-by Molecules 2021-07-08

Green coffee (Coffee arabica and Coffee robusta) is one of the most commonly traded goods globally. Their beans are enriched with polyphenols numerous health benefits associated their consumption. The main aim this work was to develop a new fast analytical HPLC-MS/MS method simultaneously determine six flavonoid polyphenolic compounds (quercetin, rutin, isorhamnetin, quercetin-3-glucouronide, hyperoside, quercitrin) in 22 green samples from different geographical origins (Ethiopia, Brazil,...

10.3390/foods11193033 article EN cc-by Foods 2022-09-30

Abstract Six extracts (water, ethanol, ethanol‐water, ethyl acetate, dichloromethane, and n ‐hexane) of Astragalus caraganae were studied for their biological activities bioactive contents. Based on high‐performance liquid chromatography‐mass spectrometry (HPLC‐MS), the ethanol‐water extract yielded highest total content (4242.90 µg g −1 ), followed by ethanol water (3721.24 3661.37 , respectively), while least was hexane extract, dichloromethane acetate (47.44, 274.68, 688.89 respectively)....

10.1002/ardp.202300263 article EN Archiv der Pharmazie 2023-07-11

Rice has become a major staple cereal in sub-Saharan Africa. Currently, upland rice cultivation is expanding particularly rainfed areas where the root parasitic weed Striga hermonthica, constraint to production, endemic. Laboratory, pot, and semi-controlled open air experiments were performed evaluate resistance of selected varieties Sudan resident S. hermonthica population. In laboratory, 27 screened for post-attachment using rhizotron technique. Varieties displaying high resistance, Umgar,...

10.3389/fpls.2016.00634 article EN cc-by Frontiers in Plant Science 2016-05-13

Black mulberry, Morus nigra L. (family: Moraceae), is a healthy food and medicinal plant. Microwave hydrodiffusion gravity (MHG) one of the most innovative applications solvent-free microwave extraction. The aim this study was to optimize for first time MHG extraction polyphenols sugars from M. fruits. Optimization carried out using central composite design (CCD) with selected responses such as yield, total polyphenol (TPC), flavonoid (TFC), anthocyanin (TAC), sugar (TSC) contents, in...

10.3390/ph15010099 article EN cc-by Pharmaceuticals 2022-01-14

Sweet chestnuts (Castanea sativa Mill.) are highly prized nuts, and the consumption of fresh is usually preceded by roasting, boiling, frying. The aim this work was to simultaneously analyze 29 polyphenolic compounds for first time in raw, boiled, roasted, fried chestnut seeds shells using HPLC-MS/MS. Principal component analysis depending on HPLC-MS/MS results showed that frying affected contents 25 detected phenolic a unique way, which most notable phenolics were gallic acid, ellagic...

10.3390/plants10102192 article EN cc-by Plants 2021-10-15
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