Influence of parameters of drying on laser induced diffuse reflectance of banana discs

Banana discs of 1 cm thickness were immersed into different antioxidant solutions to slow down potentially disturbing discoloration during drying. Samples were randomly split into 8 groups according to the 2^p experimental design. Two antioxidant solutions with 1.66% and 4.59% ascorbic acid, two levels of drying temperature with 50°C and 80°C, two levels of drying time with 6h and 8h were used or adjusted. Laser diodes of seven wavelengths (532, 635, 650, 780, 808, 850 and 1064 nm) were selected to illuminate the surface and light penetration pattern was evaluated on the basis of radial profiles. Profiles acquired at three wavelengths (532, 635 and 650 nm) were found to respond sensitively to adjusted parameters. As a result of drying, intensity decay was observed to move closer to incident point. Significant effect (p<0.01) of temperature, drying time and their interaction was found on extracted descriptive attributes of intensity profiles: full width at half maximum (FWHM), distance of inflection point (DIP) and slope of logarithmic decay (SLD). Beyond their presence, antioxidant concentration was neutral factor without significant contribution to the model. Results were in agreement with reference spectroscopic measurements, especially with NDVI index. Promising results suggest that evaluated method might be suitable for monitoring purposes during drying of fruits

Application of digital solutions to improve the operation of short food supply chains

Short food supply chains (SFSCs) are today widely promoted due to the positive impact on social, economic and environmental sustainability. However, short chains face several specific challenges (e.g., meeting the requirements of consumers and ensuring optimal operations). The application of innovative solutions and digitalisation can support the actors of SFSCs to achieve these goals. Solutions and methods were collected based on the innovativeness and applicability of SFSCs. Systematic analysis of the needs of SFSCs for technological and non-technological innovations was carried out by partners of the SmartChain project. Based on the research, recommendations were made for the participating SFSCs regarding potential innovations. A significant proportion of the identified solutions have digital elements that were collectively assessed as a suitable solution in the case of the studied SFSCs. The current work provides an overview of the potential implementation of the collected innovative solutions having digital elements and addresses the primary needs and issues of SFSCs where the application is relevant. Highlighted areas of performance are marketing, communication, packaging and labelling, and logistics