FoodAuthent – Developing a System for Food Authenticity by Collecting, Analyzing and Utilizing Product Data

The research project FoodAuthent aims at providing the technical framework and incentives for the routine use of “fingerprinting” to secure and monitor food quality. The planned system captures, analyses and processes data on the chemical fingerprint of food and can prove its authenticity. For this purpose, cloud-based fingerprinting databases are combined with methods of data analysis and batch-specific product information. The project focuses on proof of origin and fraud detection of food as well as on analytical methods for the product categories cheese, oil and spirits

Dressing preserving the fundamental group

In this note we consider the relationship between the dressing action and the holonomy representation in the context of constant mean curvature surfaces. We characterize dressing elements that preserve the topology of a surface and discuss dressing by simple factors as a means of adding bubbles to a class of non finite type cylinders.Comment: 36 pages, 1 figur

Circadian pacemaker coupling by multi-peptidergic neurons in the cockroach Leucophaea maderae

Lesion and transplantation studies in the cockroach, Leucophaea maderae, have located its bilaterally symmetric circadian pacemakers necessary for driving circadian locomotor activity rhythms to the accessory medulla of the optic lobes. The accessory medulla comprises a network of peptidergic neurons, including pigment-dispersing factor (PDF)-expressing presumptive circadian pacemaker cells. At least three of the PDF-expressing neurons directly connect the two accessory medullae, apparently as a circadian coupling pathway. Here, the PDF-expressing circadian coupling pathways were examined for peptide colocalization by tracer experiments and double-label immunohistochemistry with antisera against PDF, FMRFamide, and Asn13-orcokinin. A fourth group of contralaterally projecting medulla neurons was identified, additional to the three known groups. Group one of the contralaterally projecting medulla neurons contained up to four PDF-expressing cells. Of these, three medium-sized PDF-immunoreactive neurons coexpressed FMRFamide and Asn13-orcokinin immunoreactivity. However, the contralaterally projecting largest PDF neuron showed no further peptide colocalization, as was also the case for the other large PDF-expressing medulla cells, allowing the easy identification of this cell group. Although two-thirds of all PDF-expressing medulla neurons coexpressed FMRFamide and orcokinin immunoreactivity in their somata, colocalization of PDF and FMRFamide immunoreactivity was observed in only a few termination sites. Colocalization of PDF and orcokinin immunoreactivity was never observed in any of the terminals or optic commissures. We suggest that circadian pacemaker cells employ axonal peptide sorting to phase-control physiological processes at specific times of the day

FoodAuthent – Developing a System for Food Authenticity by Collecting, Analyzing and Utilizing Product Data

The research project FoodAuthent aims at providing the technical framework and incentives for the routine use of “fingerprinting” to secure and monitor food quality. The planned system captures, analyses and processes data on the chemical fingerprint of food and can prove its authenticity. For this purpose, cloud-based fingerprinting databases are combined with methods of data analysis and batch-specific product information. The project focuses on proof of origin and fraud detection of food as well as on analytical methods for the product categories cheese, oil and spirits