Ahmed K. RashwanSouth Valley University · Food and Dariy Sciences-Faculty of Agriculture
Ahmed K. Rashwan
Doctoral of Engineering (Food Science)
Postdoctoral researcher at Food Science Dept. Zhejiang University, China. a.rashwan@agr.svu.edu.eg
About
50
Publications
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Introduction
Current research interests:
Food Science and Technology, Food analysis, Food product, Functional food, and Human Nutrition.
*Assistant Lecturer at Food and Dairy Sciences Dept.
Faculty of Agriculture, South Valley University, Qena, 83523, Egypt.
Additional affiliations
September 2019 - present
Education
September 2012 - May 2017
Sohag University
Field of study
- Food Science and Nutrition
September 2006 - July 2010
Publications
Publications (50)
Jujube belongs to the Rhamnaceae family and is a popular fruit worldwide. Jujube has a long history of usage as traditionally healthy food. However, jujube fruits have a short shelf-life and it can be stored for no more than ten days under non-controlled conditions. Thus, the processing of jujube to product is one of the best options for long time...
Background
Sorghum belongs to the Poaceae family and is a popular grain worldwide especially in Africa. Sorghum grains (SGs) have a long history of usage as a traditional food in African countries. SGs and their products have high nutritional value and showed antioxidant, anti-obesity, anti-diabetic, anti-cardiovascular, anti-inflammatory, antimicr...
Anthocyanins (ACNs) are notable hydrophilic compounds that belong to the flavonoid family, which are available in plants. They have excellent antioxidants, anti-obesity, anti-diabetic, anti-inflammatory, anticancer activity, and so on. Furthermore, ACNs can be used as a natural dye in the food industry (food colorant). On the other hand, the stabil...
This study for the first time used Melastoma dodecandrum Lour fruit powder (MDLP) as a novel functional ingredient for improving the quality of stirred-type yogurt (STY). Physicochemical properties, polyphenol content, antioxidant activity, textural analysis, fat globules, microstructure, and sensorial properties of MDLP-fortified STY were evaluate...
Yogurt is a major fermented milk product providing probiotics, lactic acid bacteria, vitamins, calcium, and proteins, yet health-beneficial phenolics, flavonoids, anthocyanins, and iron are absent in plain yogurt. These compounds could provide antidiabetic, antiobesity, antimicrobial, and anticancer properties. Here, we review the effect of adding...
Metallic nanoparticles have found wide applications due to their unique physical and chemical properties. Green biosynthesis using plants, microbes, and plant/microbial extracts provides an environmentally friendly approach for nanoparticle synthesis. This review discusses the mechanisms and factors governing the biosynthesis of metallic nanopartic...
Citation: Saeed, M.; Zhao, L.; Rashwan, A.K.; Osman, A.I.; Chen, Z.; Wang, G.; Zhou, C.; Tu, T.; Alabd, A.; Jiao, Y.; et al. Ethylene-Induced Abstract: Ethylene is an essential indicator of fruit ripening and climacteric or non-climacteric nature. This study investigated the postharvest behavior of five Chinese bayberry cultivars 'Biqi', 'Dongkui',...
This review investigates the potential link between egg consumption and Alzheimer's disease (AD) through a nutritional lens, focusing on key nutrients found in eggs such as choline, docosahexaenoic acid (DHA), and tryptophan (TRP). Eggs are recognized for their high-quality protein content and are rich in nutrients essential for brain health. Notab...
The study investigates the impact of high-pressure homogenization (HPH) optimized using response surface methodology (RSM) on the techno-functional properties of protein concentrate isolated from date seeds. The protein concentrate was subjected to HPH at various pressures (50, 100, and 150 MPa) and protein concentrations (1 %, 2 %, and 3 %) to opt...
Ethylene is an essential indicator of fruit ripening and quality; thus, this study investigated the postharvest behavior of five Chinese bayberry cultivars according to their climacteric or non-climacteric nature. These cultivars represented four different fruit-color groups, including ‘Biqi’, ‘Dongkui’, ‘Fenhong’, ‘Xiazhihong’, and ‘Shuijing’. The...
The full text of this preprint has been withdrawn by the authors due to author disagreement with the posting of the preprint. Therefore, the authors do not wish this work to be cited as a reference. Questions should be directed to the corresponding author.
Fossil fuel-based products should be replaced by products derived from modern biomass such as plant starch, in the context of the future circular economy. Starch production globally surpasses 50 million tons annually, predominantly sourced from maize, rice, and potatoes. Here, we review plant starch with an emphasis on structure and properties, ext...
Pollution and the rising energy demand are two major society issues, requiring urgent solutions. Here, we review the simultaneous production of hydrogen and removal of pollutants, with a focus on mechanisms, synthesis of photocatalysts, and applications. Remarkably, this method utilizes organic pollutants as sacrificial agents for photocatalytic hy...
Cyanidin-3-O-glucoside (C3G) is a type of water-soluble flavonoid compound that is abundantly found in fruits and vegetables. C3G possesses numerous biological activities, however, it is prone to breakdown under environmental conditions. To overcome these issues, we developed nano-nutriosome (NS) carriers created by vortex-mixing and probe-sonicati...
The global population surge presents a dual challenge and opportunity in the realms of food consumption, safety, and mental well-being. This necessitates a projected 70% increase in food production to meet growing demands. Amid this backdrop, the ongoing COVID-19 pandemic exacerbates these issues, underscoring the need for a deeper understanding of...
Hydrogen is viewed as the future carbon–neutral fuel, yet hydrogen storage is a key issue for developing the hydrogen economy because current storage techniques are expensive and potentially unsafe due to pressures reaching up to 700 bar. As a consequence, research has recently designed advanced hydrogen sorbents, such as metal–organic frameworks,...
The global hydrogen demand is projected to increase from 70 million tons in 2019 to more than 200 million tons in 2030. Methane decomposition is a promising reaction for H2 production, coupled with the synthesis of valuable carbon nanomaterials applicable in fuel cell technology, transportation fuels, and chemical synthesis. Here, we review catalyt...
Cyanidin-3-O-glucoside (C3G) is a flavonoid with various biological properties, susceptible to degradation and instability under different external factors. Thus, this study aimed to develop novel gum Arabic (GA)-coated nano-nutriosomes (NUs) to improve the stability of C3G and facilitate its controlled delivery and cellular uptake as well as inves...
Cyanidin-3-O-glucoside (C3G) is classified as an anthocyanin (ACN) and is recognized for its remarkable antioxidant properties. Yet, the inadequate physicochemical stability of C3G restricts its potential for various biological applications. Thus, in this study, carboxymethyl chitosan (CMC)-coated nanonutriosomes (NS) were synthesized as a novel ca...
The excessive reliance on fossil fuels has resulted in an energy crisis, environmental pollution, and health problems, calling for alternative fuels such as biodiesel. Here, we review computational chemistry and machine learning for optimizing biodiesel production from waste. This article presents computational and machine learning techniques, biod...
Membrane filtration is a major process used in the energy, gas separation, and water treatment sectors, yet the efficiency of current membranes is limited. Here, we review the use of machine learning to improve membrane efficiency, with emphasis on reverse osmosis, nanofiltration, pervaporation, removal of pollutants, pathogens and nutrients, gas s...
The global expansion of the bioenergy industry raises concerns, emphasizing the need for careful evaluation and sustainable management. To facilitate this, life cycle assessments beyond greenhouse gas emissions and energy balance are essential, along with the standardization of assessment methodologies to enable meaningful comparisons. Here, we rev...
The study explores the essential role of Life Cycle Assessment (LCA) in assessing the environmental sustainability impacts of biochar as a green sorbent in soil remediation. Recent studies from 2021 to 2023 underscore biochar's potential for global warming mitigation and carbon sequestration. The review discusses various concerns related to biochar...
Nanomaterials have been rapidly developed during the last decades, yet many nanoparticles synthesized by classical methods are toxic and their synthesis procedure is not sustainable. Here we review the green synthesis of nanoparticles from biomass and waste with a focus on synthetic mechanisms and applications in energy production and storage, medi...
Background
Fermented cereal or pseudocereal foods may be produced as a good alternative to avoid the drawbacks of dairy products. Quinoa (Chenopodium quinoa) seeds are greater sources of macro-/micro-nutrients and bioactive compounds. Quinoa seed flour is an appropriate material for fermentation by bacterial strains with a high viable count of bact...
Chinese bayberry (Myrica rubra Sieb. et Zucc.) fruit (CBF) is widely growing in eastern Asia, mainly in China. CBFs contain a high number of polyphenols, especially anthocyanins. However, CBF can be easily damaged and cannot be stored for more than 3 days at 20–22 °C and 9–12 days at 0–2 °C. Thus, this review explores the potential options for the...
Liquid biofuels like biodiesel and bioethanol are crucial in the transition to low-carbon and high-energy alternatives to fossil fuels. One significant by-product of biodiesel production is glycerol, which accounts for about 10% of the total conversion output. While waste glycerol poses challenges due to its impurities and contaminants, it also hol...
Even though plant proteins are more plentiful and affordable than animal proteins in comparison, direct usage of plant-based proteins (PBPs) is still limited because PBPs are fed to animals as feed to produce animal-based proteins. Thus, this work has comprehensively reviewed the effects of various factors such as pH, temperature, pressure, and ion...
The rapid growth of global industrialization and urbanization has led to the excessive use of non-renewable energy sources and the alarming release of greenhouse gases within the construction industry. In response, adopting sustainable and environmentally friendly building materials has emerged as a vital solution for achieving the international su...
In this study, the physicochemical and sensorial properties of set-type yogurt (STY)-enriched with water-soluble Melastoma dodecandrum Lour. fruit extract (MDLE) loaded nano-nutriosomes (MDLE-NU) or chitosan-coated nano-nutriosomes (CH-MDLE-NU) powder were investigated during 21 days of cold storage at 4 ± 2 °C. The results showed that MDLE powder...
Anthocyanins are potential bioactive compounds with less bioavailability due to instability in physicochemical and physiological harsh environments. This study synthesized a “nanolipo-fibersomes (NLFS)” using Lipoid® S75 and Nutriose® FB 06 (dextrinization of wheat starch) through a self-assembly technique with probe sonication. We aimed to encapsu...
Blueberries (BBs) are perennial fruits belonging to the Ericaceae family. BBs are popular worldwide because of their high concentration of bioactive compounds. BBs have a long history of usage as traditional healthy foods, but their short shelf-life (less than 6 days under non-controlled conditions) is the main reason for their unavailability. Thus...
Traditional fertilizers are highly inefficient, with a major loss of nutrients and associated pollution. Alternatively, biochar loaded with phosphorous is a sustainable fertilizer that improves soil structure, stores carbon in soils, and provides plant nutrients in the long run, yet most biochars are not optimal because mechanisms ruling biochar pr...
Food loss and waste is a major issue affecting food security, environmental pollution, producer profitability, consumer prices, and climate change. About 1.3 billion tons of food products are yearly lost globally, with China producing approximately 20 million tons of soybean dregs annually. Here, we review food and agricultural byproducts with emph...
Cranberries are well-known berry fruits and a member of Ericaceae family. It is a potential source of bioactive components including phenolic acids, flavonols, organic acids, pentacyclic triterpenoids, anthocyanins, etc. Until now, several scientific researches uncovered the positive role of cranberry consumption to suppress human diseases includin...
Metal-organic frameworks are porous polymeric materials formed by linking metal ions with organic bridging ligands. Metal-organic frameworks are used as sensors, catalysts for organic transformations, biomass conversion, photovoltaics, electrochemical applications, gas storage and separation, and photocatalysis. Nonetheless, many actual metal-organ...
Melastoma dodecandrum Lour. (MDL) extracts have shown potent α-glucosidase inhibitory activity, suggesting MDL might be a good source of α-glucosidase inhibitors. The aim of the study was to identify compounds in MDL extracts with α-glucosidase inhibitory activities and evaluate their effect on postprandial blood glucose as well as elucidating the...
Colostrum is the first mammary gland secretion after parturition. Colostrum has a high nutritional value due to its contents of macronutrients, micronutrients, and bioactive compounds, and colostrum intake could improve growth performance, gastrointestinal tract development, and health status. Thus, this review focuses on the nutritional compositio...
Bioactive food compounds (BFCs) are micronutrients existing in small quantities in various foods. Plant, microbes, and animals are considered the main sources of bioactive components including polyphenols, flavonoids, ω-3 FAs, and so on. BFCs have many biological functions such as antioxidant, antidiabetic, antiobesity, anti-cardiovascular, antican...
Curcumin (CUR) is a natural hydrophobic compound, which is available in turmeric rhizome. It has several bioactivities including antioxidant, anti-obesity, anti-diabetic, cardioprotective, anti-inflammatory, antimicrobial, anticancer, and other activities. Despite its medical and biological benefits, it is using in limitations because of its hydrop...
Procyanidins (PCs) is member of the proanthocyanidins (or condensed tannins) class of flavonoids. They are oligomeric compounds, which can be formed from catechin and epicatechin molecules. PCs are abundant in our diet, including chocolate, apple, grapes, legumes, berries, peanuts, and others. Metabolic diseases (MD) are disorders that negatively a...
The biological activity of neohesperidin (NH, a flavanone glycoside) is limited due to instability in the physiological environment. Thus, the current study aimed to explore the protective effect of NH-loaded pectin-chitosan decorated liposomes (P-CH-NH-NL) against palmitic acid (PA)-induced hepatic oxidative injury in L02 cells. The particles were...
Colon-targeted delivery is an active area of research as it can improve drug stability, bioactivity, and lessen the systematic toxicity. In this study, the colon-specific delivery of pelargonidin-3-O-glucoside (P3G) was investigated using pectin (P)/chitosan (CH)-functionalized nanoliposome (NL). The food simulant stability, transport mechanism, an...
Sorghum, like other cereals, is a good source of starch, that reached to about 60-80% of kernels which had an brilliant potential for global industrial claims. In this study, starch had been isolated from tow sorghum varieties (low tannin; Giza 15 and high tannin; Assiut 14) using different extraction procedures (boiling in water and in alkaline me...
Sorghum (Sorghum bicolor (L.) Moench) is a rich source of bioactive compounds such as polyphenols, tannins, and phytate. Polyphenols have been recognized as the most abundant source of anti-oxidants in our diet. The quantity and quality of polyphenols, tannins and phytate in foods are affected by processing due to their highly reactive nature, whic...
Questions
Questions (8)
How we can produce bio-plastic and how we can combine bio-plastic with intelligent packing? What is the difference between bio-plastic and bio-packing?
I am seeking the protocol for preparing nano-liposome powder for SEM, if you can suggest any article for me, I will be thankful.
Hello,
How many ionization modes for bioactive food compounds? When I researched about that, I found positive and negative ionization modes. Is it has a neutral ionization mode or not? If it has a neutral ionization mode, these bioactive compounds like what?