An overview and analysis of the food festivallandscape in The Netherlands in 2017
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De wereldbevolking groeit van 7 miljard nu naar 9 miljard in 2040. De productiegroei van voedsel loopt hierop flink achter. Uit onderzoek van de FAO in 2011 komt naar voren dat wereldwijd elk jaar 1,3 miljard ton voedsel verloren gaat, ruim een derde van de voedselproductie. Binnen de EU gooien we 20% van het totaal voor de EU inwoners geproduceerde voedsel weg, inclusief het onvermijdbare verlies. Dat komt neer op 173 kg per EU inwoner per jaar. Ongeveer de helft daarvan wordt weggegooid in de productieketen tot en met de supermarkt. Agri-food reststromen zijn te vinden bij de voedselindustrie, boeren, veilingen, supermarkten etc. Die worden momenteel laagwaardig verwerkt in diervoeder, compost, potgrond, vergisting etc. Hoogwaardig verwerken gebeurt zelden, bv via de Voedselbank of de Verspillingsfabriek (soepen etc.). Dit project heeft primair als doel om reststromen vanuit de food industrie hoogwaardig te verwaarden, met 3D food printing als primaire technologie. 3D food printing is in 2006 ontstaan en sinds 2016 in een stroomversnelling gekomen. (Michelin) chefs, chocolatiers, patissiers, fooddesigners en catering hebben deze nieuwe techniek nu omarmd. Vanuit de voedselindustrie is er ook veel belangstelling, met name voor industriële toepassing en voorgevulde cartridges. Daarmee kan het Nespresso businessmodel voor een doorbraak in 3Dfoodprinting zorgen, een goedkope 3Dprinter voor consumenten waarbij verdiend wordt aan de cartridges. Belangrijk dus om toepassingen te vinden die de mogelijkheden van 3D food printing voor verwaarding van reststromen volop benutten.
Size measurement plays an essential role for micro-/nanoparticle characterization and property evaluation. Due to high costs, complex operation or resolution limit, conventional characterization techniques cannot satisfy the growing demand of routine size measurements in various industry sectors and research departments, e.g., pharmaceuticals, nanomaterials and food industry etc. Together with start-up SeeNano and other partners, we will develop a portable compact device to measure particle size based on particle-impact electrochemical sensing technology. The main task in this project is to extend the measurement range for particles with diameters ranging from 20 nm to 20 um and to validate this technology with realistic samples from various application areas. In this project a new electrode chip will be designed and fabricated. It will result in a workable prototype including new UMEs (ultra-micro electrode), showing that particle sizing can be achieved on a compact portable device with full measuring range. Following experimental testing with calibrated particles, a reliable calibration model will be built up for full range measurement. In a further step, samples from partners or potential customers will be tested on the device to evaluate the application feasibility. The results will be validated by high-resolution and mainstream sizing techniques such as scanning electron microscopy (SEM), dynamic light scattering (DLS) and Coulter counter.
Chemical preservation is an important process that prevents foods, personal care products, woods and household products, such as paints and coatings, from undesirable change or decomposition by microbial growth. To date, many different chemical preservatives are commercially available, but they are also associated with health threats and severe negative environmental impact. The demand for novel, safe, and green chemical preservatives is growing, and this process is further accelerated by the European Green Deal. It is expected that by the year of 2050 (or even as soon as 2035), all preservatives that do not meet the ‘safe-by-design’ and ‘biodegradability’ criteria are banned from production and use. To meet these European goals, there is a large need for the development of green, circular, and bio-degradable antimicrobial compounds that can serve as alternatives for the currently available biocidals/ preservatives. Anthocyanins, derived from fruits and flowers, meet these sustainability goals. Furthermore, preliminary research at the Hanze University of Applied Science has confirmed the antimicrobial efficacy of rose and tulip anthocyanin extracts against an array of microbial species. Therefore, these molecules have the potential to serve as novel, sustainable chemical preservatives. In the current project we develop a strategy consisting of fractionation and state-of-the-art characterization methods of individual anthocyanins and subsequent in vitro screening to identify anthocyanin-molecules with potent antimicrobial efficacy for application in paints, coatings and other products. To our knowledge this is the first attempt that combines in-depth chemical characterization of individual anthocyanins in relation to their antimicrobial efficacy. Once developed, this strategy will allow us to single out anthocyanin molecules with antimicrobial properties and give us insight in structure-activity relations of individual anthocyanins. Our approach is the first step towards the development of anthocyanin molecules as novel, circular and biodegradable non-toxic plant-based preservatives.
