Manuela Zude:
Non-Invasive Methods in Quality Testing of Fresh and Processed Horticultural Produce


Leibniz-Institute for Agricultural Engineering Bornim (ATB), Horticultural Engineering, Germany

The final quality of a horticultural produce after minimal and intensive processing is highly dependent on the quality of the product entering the process, on the technology applied, and on the storage conditions. Measuring the product maturity and evaluating the impact of processing technologies on the product quality with respect to its anti-oxidant nutrient content is an important task to determine strategies for quality optimization and monitoring in the frame of a reasonable process management.

New methods are recently evaluated for this purpose taking into account their accuracy and feasibility. In this contribution 3 applications of optical technologies are presented for monitoring the maturity, nutritional value, as well as internal damage of fresh and processed horticultural produce:


Keywords: Citrus production, fluorescence spectrometry, horticultural produce, product maturity, non-invasive quality testing, soluble solids content


Contact Address: Manuela Zude, Leibniz-Institute for Agricultural Engineering Bornim (ATB), Horticultural EngineeringMax-Eyth-Allee 100, 14469 Potsdam, Germany, e-mail:
Andreas Deininger, November 2005