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Maarten Hertog
Postharvest Physiologist
Flanders Center for Postharvest Technology
KU Leuven;Research Group on Postharvest Technology, Division of Mechatronics, Biostatistics and Sensors, Department of Biosystems, Faculty of Bioscience Engineering, Katholieke Universiteit Leuven
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Bio
Research interests
Over the years I have developed myself from a general plant physiologist into a postharvest modeller. I am developing mathematical models to describe postharvest quality changes based on simplifications of the underlying biochemical, physical or physiological mechanisms. To date, I have developed models on Modified Atmosphere packaging and gas exchange in general and on the post harvest quality of potato, kiwifruit, apple and avocado in particular. Main emphasis has been on discriminating between constant kinetic parameters and variable batch dependent parameters that can account for biological variation between batches. More recently I am working on fruit-to-fruit variation.
The simulation model on MAP is being used to facilitate the development of new MA packages. Based on the quality change model for potatoes, a commercial model-based-control system was developed to automatically manage and control the climate in potato stores taking into account the quality of the potatoes stored. The quality change model on kiwifruit has been used to optimise shipping conditions of early start kiwifruit from New Zealand to Europe. In all these cases the developed models were applied to predict quality changes throughout the logistic chain contributing to a better understanding and operation of the logistic chains. Part of my current work is aiming at developing smart traceability systems for the fresh produce chain that integrate administrative aspects with the traceability of the actual product quality.
My PhD thesis on Quality change modelling in postharvest biology and technology which can be seen as a reflection of my research experience from the last 15 years at the various research institutes. The postharvest handling chain has the unique but difficult task to handle highly perishable living produce prone to large sources of biological variation. To improve the postharvest handling chain a good understanding is required of the underlying processes affecting quality of the individual food items and affecting the propagation of the omnipresent biological variation within a batch throughout the whole handling chain. This thesis focused on two objectives. The first objective is to study the relationship between the rates of gas exchange and the dynamics of quality changes during postharvest. The second objective was to study how biological variation propagates through the postharvest chain. For both objectives, mathematical models based on simplified kinetic mechanisms play a key-role in interpreting and analysing experimental data. My thesis tries to bridge a gap between biologists on one side and modellers and statisticians on the other side. Once good conceptual models are available it is only a small step to turn these into mathematical models that can be used to challenge current concepts and to describe, predict and optimise the postharvest chain.
My latest interest is in the area of metabolic flux analysis (MFA) and applying this in the area of postharvest. This can be seen as a natural extension of my work so far, moving from the level of modelling phenomena to the underlying level of modelling biochemistry. MFA is based on the knowledge of the reactions present in a particular physiological condition. However, to perform MFA it is first necessary to set up the metabolic network and to analyse potential routes in metabolic networks, to determine which reactions are most likely to be active in a particular physiological state.
Research Interests
Papers共 288 篇Author StatisticsCo-AuthorSimilar Experts
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POSTHARVEST BIOLOGY AND TECHNOLOGY (2024): 112637-112637
FOOD RESEARCH INTERNATIONAL (2024): 113802-113802
POSTHARVEST BIOLOGY AND TECHNOLOGY (2024): 112903
European Journal of Horticultural Scienceno. 1 (2024): 1-10
Postharvest biology and technology (2024): 113010-113010
GREEN CHEMISTRYno. 3 (2024): 1302-1305
Matthias Corion, Simao Monteiro Belo dos Santos,Nadia Everaert,Jeroen Lammertyn,Bart De Ketelaere,Maarten Hertog
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRYno. 15 (2024): 8434-8443
Acta horticulturaepp.49-54, (2023)
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Author Statistics
#Papers: 281
#Citation: 6937
H-Index: 47
G-Index: 70
Sociability: 6
Diversity: 2
Activity: 76
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