Implementation of Ultrasound in Inovative Highly-efficient Bioprocesses

Primjena ultrazvuka jedna je od metoda čija primjena se istražuje u cilju unaprijeđenja učinkovitosti različitih postupaka, npr. filtracije, otplinjavanja, zagrijavanja i ekstruzije, pasterizacije i sterilizacije, smanjenja stupnja polimerizacije, itd., koji se provode u industrijskom mjerilu. Primjena ultrazvuka integrira se u različite inovativne i održive bioprocese tijekom kojih je znatno smanjena: (1) potrošnja vode, drugih otapala i energije, (2) potrošnja fosilnih goriva, (3) količina otpadne vode i (4) drugih tzv. opasnih proizvoda. Ovi bi integrirani (bio)procesi mogli naći primjenu u prehrambenoj, faramaceutskoj i kemijskoj industriji.Ultrasound is one of widely investigated methods to be applied in highly-efficient processes, e.g. filtration, deggasing, heating and extrusion, pasterization and sterilization, depolymerization, etc., usually performed on the industrial scale. Application of ultrasound has been integrated in different innovative and sustainable bioprocesses in which: (1) consumption of water, other solvents and energy, (2) consumption of fossil fuels, (3) volume of waste water as well as (4) other hazardous materials has been reduced. Those integrated (bio)processes could be implemented in food, pharmaceutical and chemical industry

Application of Low - intensity Ultrasound („pulse – echo“) for Damage Detection of Packaging Materials and Foreign Bodies in Packaged Products

Sa ciljem što preciznijeg i jasnijeg defi niranja eventualnih nedostataka ambalažnog materijala u smislu detekcije oštećenja kao i otkrivanje stranih tijela unutar upakiranog gotovog prehrambenog proizvoda danas se primjenjuju razne tehnike čija je temeljna osnova utjecaj ultrazvuk niskog intenziteta. Ultrazvuk kao mehanička vibracija sličan je čujnome zvuku. Nerazorna (dijagnostička) ispitivanja najčešće se provode u frekvencijskom području između 1MHz – 30 MHz i karakteriziraju ga niski intenziteti (<1 W/cm²). U ovom radu prikazani su utjecaji različitih tehnika primjene ultrazvuka niskog intenziteta kao što su „puls – jeka“ metoda kao najučinkovitija metoda pri detekciji stranih tijela zaostalih unutar ambalažnog materijala tijekom proizvodnog procesa, kao i mjerenje utjecaja akustičke impedancije sa ciljem dobivanja što jasnije slike analiziranih spojnih mjesta ambalažnog materijala. Prikazane su i osnovne značajke BAI (eng. Backscattering Amplitude Integral) tehnike slikanja kako bi se analizom dobivene slike identifi cirale pukotine i oštećenja spojnih mjesta ambalažnog materijala.In order to achieve precise and clear definitions of possible flaws, imperfections in packaging materials, low intensity ultrasound is the basic applied technique. The most useful applications of low intensity ultrasound are for detection of foreign bodies, damages and holes inside of the packaging materials. Ultrasound is mechanical vibration similar to audible sound. Diagnostic investigations were performed in frequency range between 1MHz – 30MHz with low intensity (<1 W/cm²). This article indicate different techniques of using low intensity ultrasound such as “pulse – echo” method like a more effective method for detection of foreign bodies inside of packaging materials during production. The main goal of measuring of acoustic impedance is acquiring distinct images of analyzed contact places of packaging materials. There are also shown the basic characteristics of BAI (Backscattering Amplitude Integral) technique of getting images and their analysis for identification of damages of connecting places of packaging materials

Water for all : Proceedings of the 7th international scientific and professional conference Water for all

The 7th International Scientific and Professional Conference Water for all is organized to honour the World Water Day by the Josip Juraj Strossmayer University of Osijek, European Hygienic Engineering & Design Group (EHEDG), Danube Parks, Croatian Food Agency, Croatian Water, Faculty of Food Technology Osijek, Faculty of Agriculture in Osijek, Faculty of Civil Engineering Osijek, Josip Juraj Strossmayer University of Osijek Department of Biology, Josip Juraj Strossmayer University of Osijek Department of Chemistry, Nature Park “Kopački rit”, Osijek- Baranja County, Public Health Institute of the Osijek- Baranja County and „Vodovod-Osijek“ -water supply company in Osijek. The topic of World Water Day 2017 was "Wastewater" emphasizing the importance and influence of wastewater treatments on global environment. The international scientific and professional conference Water for all is a gathering of scientists and experts in the field of water management, including chemists, biologists, civil and agriculture engineers, with a goal to remind people about the significance of fresh water and to promote an interdisciplinary approach and sustainability for fresh water resource management. The Conference has been held since 2011. About 300 scientists and engineers submitted 95 abstracts to the 7th International Scientific and Professional Conference Water for all, out of which 33 was presented orally and 62 as posters. 47 full papers were accepted by the Scientific Committee. 38 full papers became the part of the this Proceedings while 9 papers were accepted for publication in Croatian Journal of Food Science and Technology and Electronic Journal of the Faculty of Civil Engineering Osijek - e-GFOS