Results 61 to 70 of about 165,219 (191)

The Effect of Chitosan and Chitin Oligomers on Gene Expression and Lignans Production in Linum album Cell Cultures

Journal of Medicinal Plants, 2014
Background: Linum album, a herbaceous and medicinal plant, has been shown to accumulate anti-tumor podophyllotoxin (PTOX) and related lignans. Objective: In this study, we have verified the time-course of cell growth, lignan production in cells treated ...
S Esmaeilzadeh Bahabadi, M Sharifi, J Murata, H Satake   +3 more
doaj  

Antimicrobial Peptides and Peptidomimetics in Foods – A Synthetic Foray

ChemFoodChem, EarlyView.
This Review discusses AMPs in foods and their syntheses. It espouses facile methods to make them accessible and suggests their utility in the mitigation and eradication of the burgeoning maladies of antimicrobial and multidrug resistance (AMR and MDR).
Josephat U. Izunobi, Adejoke D. Osinubi, Abosede A. Badeji   +2 more
wiley   +1 more source

Improved chitosan-mediated gene delivery based on easily dissociated chitosan polyplexes of highly defined chitosan oligomers [PDF]

Gene Therapy, 2004
Nonviral gene delivery systems based on conventional high-molecular-weight chitosans are efficient after lung administration in vivo, but have poor physical properties such as aggregated shapes, low solubility at neutral pH, high viscosity at concentrations used for in vivo delivery and a slow dissociation and release of plasmid DNA, resulting in a ...
M, Köping-Höggård, K M, Vårum, M, Issa, S, Danielsen, B E, Christensen, B T, Stokke, P, Artursson   +6 more
openaire   +2 more sources

Synthesis of Chitosan Oligomers/Propolis/Silver Nanoparticles Composite Systems and Study of Their Activity against Diplodia seriata

International Journal of Polymer Science, 2015
The synthesis and characterization of composites of oligomeric chitosan with propolis extract which allow the incorporation of a third component (silver nanoparticles) are reported, together with their application in aqueous or hydroalcoholic solutions ...
Petruta Mihaela Matei, Pablo Martín-Ramos, Mercedes Sánchez-Báscones, Salvador Hernández-Navarro, Adriana Correa-Guimaraes, Luis M. Navas-Gracia, Cassyo Araujo Rufino, M. Carmen Ramos-Sánchez, Jesús Martín-Gil   +8 more
doaj   +1 more source

In Vitro Antifungal Activity of Chitosan-Polyphenol Conjugates against Phytophthora cinnamomi

AgriEngineering, 2020
Phytophthora cinnamomi is responsible for radical rot in a wide range of hosts, resulting in large economic and ecological losses worldwide. In Spain, it is responsible for diseases such as the oak decline or the chestnut blight. In this study, different
Petruta Mihaela Matei, Laura Buzón-Durán, Eduardo Pérez-Lebeña, Jesús Martín-Gil, Beatrice Michaela Iacomi, M. Carmen Ramos-Sánchez, Pablo Martín-Ramos   +6 more
doaj   +1 more source

Stabilization Strategies for Catechins and Epicatechins: Recent Advances

Food Chemistry International, EarlyView.
Oxidation, epimerization, polymerization, and hydrolysis, driven by heat, pH, and oxygen, are pathways. Nano‐/microencapsulation maintains integrity with 70%–95% efficiency; biopolymer nanoparticles, starch/polysaccharide nanocarriers improve stability and dispersion. Lipid nanocarriers enhance bioavailability but raise oxidation risk.
Nuzhat Shamim, Muhammad Usman Kahlid, Mutjardah Zarrish, Ayman Furqan, Prakram Singh Chauhan, Bipindra Pandey   +5 more
wiley   +1 more source

Styrene and its natural analogues: accumulation and sustainable production methods

Journal of the Science of Food and Agriculture, EarlyView.
Abstract Styrene, also known as vinyl benzene, is a colourless, highly volatile petrochemical that serves as a key monomer in the production of polystyrene and styrene‐butadiene rubber. Its industrial synthesis via the alkylation of benzene with ethylene relies on fossil fuels, requiring high temperatures and toxic catalysts that contribute to ...
Mwafaq Ibdah, Giovanni D'Ambrosio, Prasada Rao Kongala, Sureshkumar Mesara, Annalisa Serio, Bharadwaj Revuru, Antonello Paparella   +6 more
wiley   +1 more source

Synthesis and characterization of chitosan oligomers for biomedical applications

Carbohydrate Polymers, 2019
Synthèse et caractérisation d'oligomères de chitosane pour applications biomédicales Les chitooligosaccharides (COS) présentent des propriétés biologiques intéressantes telles que l'activité antimicrobienne, antifongique et antitumorale.
Moussa, Amani, Crépet, Agnès, Ladavière, Catherine, Trombotto, Stéphane   +3 more
openaire   +7 more sources

Linear and Branched Chitosan Oligomers as Delivery Systems for pDNA and siRNA In Vitro and In Vivo

, 2006
In this thesis, chitosan, a biocompatible polysaccharide that has been approved as a food additive was selected as a platform for the development of safe, efficient non-viral gene delivery systems to mammalian cells.
Issa, Mohamed Mahmoud
core   +2 more sources

Further investigation on the degree of deacetylation of chitosan determined by potentiometric titration

Journal of Excipients and Food Chemicals, 2016
The degree of deacetylation (DDA) of various low molecular weight chitosan (LMWC) species as the hydrochloride and free base (amine form) was determined by direct and back potentiometric titration, respectively.
Kamal Sweidan, Abdel-Motalleb Jaber, Nawzat Al-jbour, Rana Obaidat, Mayyas Al- Remawi, Adnan Badwan   +5 more
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