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Relationships between wine quality and substances exceeding the odour threshold produced by Hanseniaspora

Several recent studies propose the use of yeasts from the Hanseniaspora genus in winemaking. In this paper, the negative and positive wine components due to the activity of these yeasts are listed and critically analysed. Only the substances produced in amounts exceeding their odour threshold are considered. This review highlights the relationships between the use of Hanseniaspora strains in winemaking and the quality of the wines so obtained. First of all, the acetic acid concentration in gr...

Multi-time dynamics in neural network optimization: A unified framework bridging game theory and optimal control

We present a novel mathematical framework for neural network optimization based on multi-time dynamics, unifying game-theoretic and optimal control perspectives. Drawing from Udrişte’s geometric multi-time evolution theory, we model each network component as an autonomous agent evolving along its intrinsic time scale, capturing inter-layer dependencies through cross-temporal derivatives. This formulation naturally accommodates the empirically observed heterogeneity in layer-wise learning dyna...

Analysis of the Environmental Impact of Different Olive Grove Systems in Southern Portugal

Olive grove production systems in Portugal have undergone major changes, with both high-density and super-high-density systems being implemented. Despite their higher productivity, they raise questions about their environmental impacts. Thus, this article aims to assess the environmental impacts of six olive grove systems in the Alentejo region, under different technological solutions, using a life cycle assessment (LCA) approach. Five impact categories were selected, using the hectare as the...

Circular bioenergy from citrus waste: Life cycle evaluation in the Mediterranean context

An effective strategy for enhancing the sustainability of production processes is to adopt a circular economic approach utilising agro-industrial by-products and waste to generate value-added compounds, biofuels, and energy. Citrus processing generates large quantities of orange-peel waste (OPW), and recent research shows that OPW has promising potential for biogas production. Because its availability is restricted to few months of the year for seasonal variations, relying solely on OPW const...

Can sustainable farming make olive groves carbon neutral? Empirical evidence from Mediterranean Portugal

Agriculture contributes to greenhouse gas emissions while also offering potential as a carbon sink. However, the capacity of Mediterranean olive groves to offset their emissions remains poorly quantified, particularly as different cultivation models may vary substantially in their contributions to carbon sequestration and emissions, highlighting the need for comparative assessment to inform sustainable management and climate mitigation. This study assessed the carbon balance and footprint of ...

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