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Topic Review
Natural sulfur containing compounds
The present review aims to characterize the general characteristics, physicochemical properties,and health-related studies of onion, garlic, and cruciferous vegetable consumption, as well as theinfluence of food processing on their content of active substances. The review combines distinctchapters where information relevant for nutraceutical and functional food engineers, medical doctors,as well as consumers can be obtained. We believe that the review will stimulate further studies relatedto the implementation of the most accurate sources of sulfur compounds from chosen plants whichcould support the therapy of cancer patients. Moreover, the review aims to present cost-e ectiveanti-tumor means that would include the implementation in the diet of sulfur-based compoundsin foods.
  • 1.8K
  • 26 Aug 2020
Topic Review
Natural Silk and Silk Waste
Silk is one of the oldest and most useful animal fibres known to man. Silk thread is a product of the silk-producing glands of certain insects that create a net around themselves or form cocoons. The data obtained from previous studies show that the degree of silk waste practical use is still low, although silk is an expensive and highly valuable product. Furthermore, the use of natural resources to satisfy human needs also requires the extensive use of recyclable materials.
  • 556
  • 05 Jul 2023
Topic Review
Natural Products in Oncology
In recent decades, increasing interest in the use of natural products in anticancer therapy field has been observed, mainly due to unsolved drug-resistance problems. The antitumoral effect of natural compounds involving different signaling pathways and cellular mechanisms has been largely demonstrated in in vitro and in vivo studies. The encapsulation of natural products into different delivery systems may lead to a significant enhancement of their anticancer efficacy by increasing in vivo stability and bioavailability, reducing side adverse effects and improving target-specific activity. More and more studies in the nanomedicine field aim to design nanostructured systems containing natural compounds for new drug delivery tools in anticancer therapies.
  • 497
  • 22 Oct 2020
Topic Review
Natural Product Extraction Techniques
Conventional extraction techniques, including Soxhlet extraction, maceration, percolation, and decoction, are known to be time-, solvent-, and energy-intensive. In contrast, various non-conventional techniques for the extraction process, such as supercritical fluid extraction (SFE), microwave-assisted extraction (MAE), and ultrasound-assisted extraction (UAE), have been developed to increase the yield of bioactive compounds and address the aforementioned issues. These contemporary techniques have demonstrated their sustainability compared to conventional ones. Low-temperature and environmentally friendly extraction techniques have gained popularity for producing high-quality bioactive extracts. UAE, in particular, has attracted considerable interest due to its advantages over conventional extraction methods, which include greater extraction efficiency, preservation of bioactive compound stability, shorter extraction time, and industrial application. Thus, non-conventional extraction techniques like SFE, MAE, and UAE offer sustainable and efficient alternatives to conventional methods, allowing for increased bioactive compound yield, shorter extraction times, and improved stability, making them popular choices for high-quality extraction in low-temperature and environmentally friendly approaches.
  • 1.1K
  • 05 Jul 2023
Topic Review
Natural Polymers Used in Edible Food Packaging
Natural polymers like polysaccharides and proteins, i.e., alginate; carrageenan; chitosan; starch; pea protein, are important materials obtained from renewable plant, algae and animal sources, as well as from agroindustrial residues. Historically, some of them have been widely used by ancient populations for food packaging until these were replaced by petroleum-based plastic materials after World War II. Nowadays, biobased materials for food packaging have attracted attention. Their use was boosted especially because of the environmental pollution caused by inappropriate disposal of plastic packaging. Biobased materials are welcome to the design of food packaging because they possess many advantages, such as biodegradability, biocompatibility and low toxicity. Depending on the formulation, certain biopolymer-based packaging may present good barrier properties, antimicrobial and antioxidant activities Thus, polysaccharides and proteins can be combined to form diverse composite films with improved mechanical and biological behaviors, making them suitable for packaging of different food products. 
  • 3.1K
  • 10 Jan 2022
Topic Review
Natural Polymers in Heart Valve Tissue Engineering
The new generation of heart valves developed by tissue engineering has the ability to repair, reshape and regenerate cardiac tissue. Achieving a sustainable and functional tissue-engineered heart valve (TEHV) requires deep understanding of the complex interactions that occur among valve cells, the extracellular matrix (ECM) and the mechanical environment.
  • 316
  • 21 Jul 2023
Topic Review
Natural Polymers in Drug Delivery Systems
Natural polymers have received a great deal of interest for their potential use in the encapsulation and transportation of pharmaceuticals and other bioactive compounds for disease treatment. In this perspective, the drug delivery systems (DDS) constructed by representative natural polymers from animals (gelatin and hyaluronic acid), plants (pectin and starch), and microbes (Xanthan gum and Dextran) are provided. In order to enhance the efficiency of polymers in DDS by delivering the medicine to the right location, reducing the medication’s adverse effects on neighboring organs or tissues, and controlling the medication’s release to stop the cycle of over- and under-dosing, the incorporation of Fe3O4 magnetic nanoparticles with the polymers has engaged the most consideration due to their rare characteristics, such as easy separation, superparamagnetism, and high surface area. 
  • 458
  • 07 Feb 2023
Topic Review
Natural Polymers for Encapsulating Urea
Increases in food production to meet global food requirements lead to an increase in the demand for nitrogen (N) fertilizers, especially urea, for soil productivity, crop yield, and food security improvement. To achieve a high yield of food crops, the excessive use of urea has resulted in low urea-N use efficiency and environmental pollution. One promising alternative to increase urea-N use efficiency, improve soil N availability, and lessen the potential environmental effects of the excessive use of urea is to encapsulate urea granules with appropriate coating materials to synchronize the N release with crop assimilation. Chemical additives, such as sulfur-based coatings, mineral-based coatings, and several polymers with different action principles, have been explored and used for coating the urea granule. However, their high material cost, limited resources, and adverse effects on the soil ecosystem limit the widespread application of urea coated with these materials. 
  • 594
  • 16 May 2023
Topic Review
Natural Polymers
Repeated and arranged polymer molecular units are present in some animal and plant biomass. They behave as fossil-based polymeric materials and are called natural polymers. The natural polymers that were extracted from different biomass resources are classified based on the resources used. They are present in animals and plants as protein macromolecules of amino acids bonded by peptides or as polysaccharide macromolecules of monosaccharides bonded by glycosidic bonds or as lipid–long chain hydrocarbon molecules containing a carboxylic acid moiety.
  • 998
  • 31 Oct 2022
Topic Review
Natural Polymeric Composites Derived from Animals
The special property of polymeric-based systems is that they serve as adjuvants, may trigger an antigen-mediated immune response, and also substantially deliver the antigen or vaccine to the desired anatomical or physiological location. Moreover, the benefit of polymeric-based delivery methods is that they may be made using natural polymers, which reduces the risk of tissue cytotoxicity.
  • 258
  • 23 Mar 2023
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