Food and Water Testing Laboratory
| Head of Laboratory | Dr. habil Ásványi Balázs |
| Phone: | +36-96-566-653 |
| Mobile: | - |
| E-mail: | asvanyi.balazs##kukac##sze.hu |
| Website: | https://food.sze.hu/lab |
| Address: | 9200 Mosonmagyaróvár, Lucsony utca 15-17., C/0.06-017. |
INTRODUCTION OF THE LABORATORY
The Food and Water Testing Laboratory provides excellent conditions
for project work and assignments from the industrial sector. In addition to classical and molecular biology-based microbiological testing of food, feed, water, and air samples, the BSL II-classified laboratory also performs rheological (viscosity, density, etc.) tests, chemical composition (dry matter, foreign water, alcohol, sugar content, etc.) determinations, and sensory evaluations. It has significant resources for modelling fermentation systems.
INTRODUCTION OF TESTS
| Name of the test | The standard on which the test is based | Accredited test Y/N | Short description |
|---|---|---|---|
| - | - | - | - |
If you have not found the right test or you would like to request a customised test, please contact us!
Dr. habil Ásványi Balázs
E-mail: asvanyi.balazs@sze.hu
Phone:+36-96-566-653
INTRODUCTION OF THE EQUIPMENTS
| Name of the equipment | Parameters, test range | Inquiries/tests |
|---|---|---|
| Fermentor Satrorius BIOSTAT Aplus + software | - Fermentor vessel with a working volume of 5 litres, - Digital control, MFCS DA data acquisition software, - Measured and controlled parameters: temperature (8-80 °C), pH (2-14), DO2 (0-99%), stirring speed (50- 800 1/min), air flow (max. 15 l/min (2 bar); O2, N2, CO2: max. 5 l/min (1,5 bar) ) measurement with rotameter, automatic electrode calibration, O2 enrichment to maintain desired dissolved oxygen level, foam and level detection, sterile air introduction, automatic acid, alkali dosing to maintain pH level, automatic substrate dosing - Manual sampling, cascade control to maintain dissolved oxygen level |
Modelling of fermentation and bioconversion processes and experiments on single-cell protein production, propagation to influence the reproductive properties of microorganisms. |
| Sammic - L-7614 vacuum degasser | - vacuum: 0-99% | It is suitable for the demonstration of the vacuum processing of meat and sous-vide products. |
| Rudolph DDM 2910 desktop density meter | - alcohol content 0-100 v/v%, m/m% - Brix % measuring range? - sugar content measuring range? - Accuracy: 0.0001 g/cm3 -Temperature: 0.05ºC - Repeatability: 0.0001 g/cm3 - Temperature: 0.02 ºC - Resolution: 0.00001 g/cm3 - Temperature: 0.01 ºC - Minimum sample volume: Less than 1 ml - Measurement speed: 3 decimal places within 30 seconds, 4 decimal places within 60 seconds, 5 decimal places within 90 seconds. |
Suitable for determining the taste parameters of fruit juices and alcoholic beverages. |
| MAS 100 NT and MAS 100 ECO air samplers | - built-in anemometer - when activating the SQS cycle (sequential sampling mode), the volume to be aspirated can be divided into up to 20 portions at 24-hour intervals - adjustable collection head - logging of sampling and alarm data (100 to 100 samples) - manual or stamp (10 HACCP plans) mode - portable: rugged yet lightweight design - PC interface: USB, RS 232 - programmable sample volume: up to 2000 litres - nominal air flow rate: 100 + 2,5 % litres/minute - size (w x h): 110 x 250 mm - weight: 2-3 kg |
Sedimentation air sampling for microbiological testing. Apparatus for rapid and accurate sampling of air for microbiological purposes in food processing plants, hospitals or other institutions. |
| Thermo Scientific Real-time PCR system with software |
- block size: min. 24 spaces, can be used with individual tubes, strips and plates - heating rate: >5 °C - cooling rate: 4,5 °C - temperature range: 4 - 99,9 °C - accuracy of temperature distribution within the block: ± 0,3 OC at 95 °C - Number of channels: 5, separate channels for SYBR Green/FAM for singleplex and multiplex - excitation: independent LED excitation per channel - multiplexing option: 4 - detection: CCD, detection time for 4 multiplexes <10sec - instrument is factory calibrated for SYBR Green/FAM/HEX/Yakima Yellow/ROX/Texas Red/Cy5 fluorophores - absolute and relative quantification - SNP (allele discrimination) and High Resolution Melting analysis - Direct export of measurement data and graphs - the reaction can be run without predefined plate assignment - can be connected directly or via network to the control computer and can run a program stored on a USB-connected mobile storage device |
Perform DNA-based identification reactions. PCR (polymerase chain reaction) is a molecular biology technology that allows the amplification of a specific section of isolated DNA for a specific analytical purpose (e.g. identification of microorganisms). |
| Biosan TDB-120 for thermoblock PCR system | - Incubation of PCR tubes up to 4-99 °C | Sample preparation. |
| Biosan - Mikrospin 12 microcentrifuge (for PCR system) | - centrifugation: up to 15.000 g | Sample preparation, centrifugation. |
| Biosan - Combispin FVL-2400 N microcentrifuga | - Distillation of PCR tubes max 6000 rpm and max 6×1,5 ml or 2 strips | Sample preparation, low speed centrifugation. |
| bioMérieux Densimat cell density meter | - 0,0-7,5 McF | Measurement of cell density of microorganism-containing suspensions at a given wavelength (540 nm). Investigation of the relationship between cell density and cell number. |
| Millipore - Vacuum system water filter | - Filter 3 parallel samples on a membrane with variable pore diameter. | Microbiological testing of water, sterile filtration of solutions. |
| Binder heating thermostats (6 pcs) | - 50 - 720 l | Incubation for microbial culture methods. |
| Memmert INB 500 cooling-heating thermostat | - useful volume: 108 litres 5-70 °C operating temperature 80% rH |
Incubation (even refrigerated) for microbiological culture methods. |
| Binder - CO2 incubator | - built-in 180 °C heat sterilisation programme - overheating protection and automatic diagnosis function with visual and audible alarms - temperature range: room temperature (+7 °C) - (+50 °C) - infrared C02 sensor - internal volume: 150 litres - external dimensions (w x h x m x w): 680 x 819 x 815 mm |
Incubation for microbial culture methods. |
| New brunswick G76 D shaking water bath | - Up to 95°C | It is also suitable for incubation of samples at a given temperature, even at low temperatures. |
| GFL 1003 heating-type waterbath | - 10 l | It is suitable for incubating samples at a given temperature and performing heat treatments. |
| Flowfast V18 P laminar boxing | - Class ISO 3. vertical flow laminar cabin - external dimensions (w x h x m x w): 1942x780×1495 mm - useful dimensions (w x h x w x m): 180x625x710 mm - UV lamp - epoxy powder painted plinth |
Sterile working. |
| Stomacher type homogenizer (2 pcs) | - volume: 50-400 ml - with stainless steel door - size (h. x w. x h.): 390x260x290 mm - timer: 0- 30 - 60 - ∞ sec. |
Microbiological sample preparation, homogenisation in sterile bags. |
| H+P Labortechnik GMBH 500E - Refillable autoclave | - volume: 129 litres - chamber dimensions (w x h): 500x656 mm - operating temperature: 105-135°C - maximum pressure: 2,5 bar - power: 6,2 kW - weight: 145 kg - 2 stainless steel baskets - fully automatic operation - microprocessor controlled - 12 standard programs - low water consumption - electronic pressure and temperature control - USB port |
Steam sterilisation, heat treatments (media, reagents, re-sterilisation). |
| HMC Europe HG 133 - Supercharged autoclave | - operating temperature: 105-135 °C - maximum pressure: 2,5 bar - volume: 100 litres - microprocessor controlled |
Steam sterilisation, heat treatments (media, reagents, re-sterilisation). |
| Bio Medlab BHL 100 - Ultrafreezer | - temperature: maximum -85°C | Sample archiving, ultra-freezing. |
| Heraus Instrument SKT 6200 - Hot air sterilizer | - volume: 100 litres - temperature: up to 200 °C |
Dry sterilisation (glassware and metal utensils). |
| bioMérieux mini VIDAS immunoassay device | - ELISA immunoassay. For simultaneous analysis of 2×6 samples | Immunoassay equipment for the rapid detection of Salmonella and Listeria species. |
| Voltcraft PH-100ATC - Temperature compensated pH meter | - with normal glass and piercing electrode - measuring range: 0-14 pH |
pH measurement of liquids and solids |
| Electro-optics ALPHA BIO 2T Binocular light microscope with camera and photographic attachment. | - with dry and immersion lenses (5×, 10×, 40×, 100×), Plan apochromat and phase contrast lenses | Investigation of microstructures (e.g. microorganisms) in preparations. Analysis of stained and native preparations. |
| Lab 02 Microjet autoclave | - microwave heating of up to 500 ml of liquid | Microwave heat treatments, media thawing, sterilisation. |
OTHER PROFESSIONAL COMPETENCIES/DEVELOPMENTS
COLLEAGUES
| Name | Position | Scope of duties, main activities |
|---|---|---|
| Dr. habil. Ásványi Balázs | Head of laboratory | Management of the laboratory. Microbiological testing (food, water, feed), hygiene control sampling and testing (surface, water, air). Functional and organic food production. Protein and vitamin enrichment of dairy by-products by fermentation. Development of biological preservatives. Development of rapid diagnostic methods. Molecular biology tests. Possible applications of fermentation technologies in the food industry. Investigation of the propagation kinetics of yeast strains. Design, testing and efficiency of ozone treatment systems. |
| Dr. Kapcsándi Viktória | lecturer, researcher | Investigation of fermentation processes, microwave effects on food and microorganisms. |
| Tihanyi-Kovács Renáta | lecturer, researcher | Investigation of microbiological status changes in bottled water under mechanical stress. |
| Greff Babett | researcher | Improving the compostability of medicinal plants using different microorganisms. |
| Lelkes Péter | department engineer | Preparing and assisting with laboratory teaching and research tasks. |
REFERENCES
