Next Tutorial Seminars : June 20, 2012
Electricity-producing bacteria? The emergence of bioelectrochemical systems by Samuel Sonck (ELEN) and Modeling of the aromatic profile of wine: main-kinetics description by Robert David (INMA)
The 5th ICTEAM Tutorial Seminars will be held on Wednesday June 20
at 1pm in the A.002 Auditorium (Euler Building).
- Electricity-producing bacteria? The emergence of bioelectrochemical systems, Samuel Sonck (ELEN)
Bioelectrochemical systems are devices converting chemical energy from organic matter to electrical energy and vice-versa. Their working principle is basically the same as a classical hydrogen fuel cell, except that they use bacteria as catalysts instead of (expensive)chemical species, such as platinum.
The diversity of available bacteria species enables bioelectrochemical systems to use a whole bunch of different types of organic matter as fuel, increasing their robustness.
Besides crude electricity production, bioelectrochemical systems scan be used on one hand as macro-device, treating wastewater or, used in a reversed way, producing hydrogen, on the other hand as a micro-device, supplying power to sensors and electronic circuits, or being a sensor themselves.
- Modeling of the aromatic profile of wine: main-kinetics description, Robert David (INMA)
The aromatic profile of young wines is mainly determined during the grape-must fermentation and is characterized by several compounds called flavour markers. These particular compounds are minority by-products produced from "leaks of metabolism" of the used yeast. The final objective of this work is to gain more insight about the synthesis of the aromatic profile in order to optimize it. For this purpose, a first necessary step is the development of a model representing the main physiological phenomena observed during the batch fermentation in the wine-making process in order to later extend it with flavour-markers equations. The main-kinetics model is based on a set of biological reactions in which nitrogen compounds such as hexose transporters play a central role, in line with experimental evidence deduced from extensive experimental studies.