Smart Photodynamic Technology for Postharvest Decay Management (2026-2027)
Abstract
Horticulture is Australia's third largest agricultural sector contributing to nation's economy and regional communities, which faces major challenges in maintaining postharvest quality with mould and decay causing significant losses that reduce grower profitability, increase waste, and impact community well-being. Currently, chemical fungicides are used for decay control, but they are becoming less effective due to the rise of fungicide resistance. Also, health concerns and stricter residue regulations are driving the search for safer alternatives. This project will advance photodynamic treatment as a clean solution that uses light and natural compounds, photosensitisers, for decontamination. We will design and validate an automated prototype that simulates commercial packing line conditions, ensuring the technology is practical and effective for real-world use. We will also explore citrus waste as a cost-effective source of photosensitsier to create value from an existing by-product a
