Applications of nanotechnology and nanomicrobiology in food safety and health science

Taleski, Vaso and Bosnakovski, Darko and Zdravkovska, Milka and Nasov, Ilija and Trajkovska - Petkoska, Anka (2015) Applications of nanotechnology and nanomicrobiology in food safety and health science. In: 2nd National Food Conference with International Participation, 20-21 March 2015, Sofia, Bulgaria.

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Abstract

Nanomaterials are chemically or physically different to their macro-scale counterparts (due higher surface/volume ratio, colour, solubility, diffusivity, material strength, toxicity, thermodynamic, magnetic, optical and other properties) and may have unique health and environmental impacts. Extremelly small size (1-100 nm) enables nanoparticles to enter the human body through usual or unusual routes, pass through cell membranes, or cross the blood-brain barrier. Alimentary exposure is considered most typical food safety concerns. At present nanotechnology is being used in a range of applications, with potential to be applied at any stage in food industry: food production, processing, packaging, labelling, transporting, tracing, keeping the quality of food product and extend the product shelf-life, leadingto less food waste, water filtration, removal of undesirable tastes, flavours or allergens from food products, nano(bio)sensors for food safety. Due to the low infectious doses, based on nano(bio)senzors, rapid and sensitive detection methods are developed for food-borne pathogens E. coli strains, especially E. coli O157:H7, S. aureus, S. typhimurium, C. jejuni, E. cloacae, B. subtilis, L. monocytogenes and yeast (Saccharomyces cerevisiae). Also, sensors to detect biofilm formation by bacteria on surfaces are developing. Food preservation, detection and inhibition of bacterial biofilm formations are fast developing area based on advantage of metal nanomaterials that possess unique antimicrobial activities (such as silver, gold, copper, titanium, zink, magnesium, cadmium, alumina). Multy drug resistant microorganisms (MDR) present one of the most serious and increasing global, public health threat. New strategies to combat MDR are urgently needed and nanomaterials are very promising approach. Risks of nanotechnology are still unknown and unpredictable. Initial scientific studies showed negative effects on living organisms and a potential for serious threat to human health. Authorities of the most developed countries, have set up, updating, guidance documentsand procedures for nanoenabled products based on existing regulations, appropriate in vitro and in vivo ADME studies (absorbtion, distribution, metabolism and excretion) and requirements for standardised and harmonised analytical test methods for proper risk assesments, clear identificationand characterization of nano-hazards.

Item Type: Conference or Workshop Item (Lecture)
Subjects: Medical and Health Sciences > Health biotechnology
Medical and Health Sciences > Health sciences
Medical and Health Sciences > Other medical sciences
Divisions: Faculty of Medical Science
Depositing User: Vaso Taleski
Date Deposited: 04 May 2015 08:25
Last Modified: 04 May 2015 08:25
URI: http://eprints.ugd.edu.mk/id/eprint/13071

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