Food production is a complex process where uncertainty very relevant (e.g. stochastic yield and demand, variability in raw materials ingredients…), resulting differences between planned actual output. These discrepancies have an economic cost for the company waste disposal), as well environmental impact (food increased carbon footprint). This research aims to develop tools based on data analytics predict magnitude of these discrepancies, improving enterprise profitability while, at same...

The growth of populations is interest in a broad variety fields, such as epidemiology, economics or biology. Although large models are available the scientific literature, their application usually requires advanced knowledge mathematical programming and statistical inference, especially when modelling under dynamic environmental conditions. This article presents biogrowth package for R, which implements functions populations. It can predict static environments, considering effect an...

The carvacrol release kinetics from active packaging (including carvacrol-βcyclodextrin inclusion complex) was studied under the following possible scenarios found in fresh produce and marketing facilities: different storage temperatures (2, 8, 15 22 ºC), relative humidity (60% 95% RH), as well conditions (open or closed). Release for closed open systems were described using first-order n-order power law kinetics, respectively. Increasing temperature RH enhanced rate. rate (k) increased by...

Variability is inherent in biology and also substantial for microbial populations. In the context of food safety risk assessment, it refers to differences response different bacterial strains (between-strain variability) cells (within-strain same condition (e.g. inactivation treatment). However, its quantification based on empirical observations incorporation predictive models a challenge both experimental design (statistical) analysis. this article we propose use multilevel quantify...

The new European regulation on minimum quality requirements (MQR) for water reuse (EU, 2020/741) was launched in May 2020 and describes the directives use of reclaimed agricultural irrigation. This Regulation will be directly applicable all Member States from 26 June 2023. Since its publication 2020, concerns have raised about potential non-compliance situations systems. present study represents a case where three different systems been monitored to establish their compliance with MQR. Each...

One solution to current water scarcity is the reuse of treated wastewater. Water systems have be examined as a whole, including efficacy water-reclamation treatments and operation steps from wastewater inlet into WWTP irrigation endpoint, irrigated crop. In this study, monitoring human enteric viruses coliphages were assessed in two reused systems. The presence hepatitis A virus (HAV) noroviruses genogroups I II (GI GII) analyzed by real-time RT-PCR (RT-qPCR) (n = 475) leafy green samples...

As risk-based approaches are increasingly recognized and used to manage food safety hazards, their implementation requires a recognition appreciation of residual risk. We define risk as the one that remains even after fully compliant system has been implemented. true 'zero risk' is essentially unattainable, understanding assessing risks for different products essential actors involved in production system. Understanding particularly critical improved surveillance systems (e.g. facilitated by...

Natto is a traditional Japanese fermented product consisting of cooked soybeans with Bacillus subtilis var. natto. We assessed three different B. strains and investigated their impact on quality aspects, such as microbial quality, textural (poly-γ-glutamate strand formation), free amino acids (FAA), volatile organic compounds (VOCs), but also the vitamin K1, K2 B1 content, presence nattokinase. Using Bayesian contrast analysis, we conclude that attributes were influenced by both substrate...

Secondary growth models from predictive microbiology can describe how the rate of microbial populations varies with environmental conditions. Because these are built based on time and resource consuming experiments, model-based Optimal Experimental Design (OED) be interest to reduce experimental load. In this study, we identify optimal designs for two common (full Ratkowsky Cardinal Parameters Model (CPM)) a different number experiments (10–30). Calculations also done fixing one or more...

This study proposes a novel methodology for risk assessment of products with extremely low risk. The method is based on the analysis those iterations that result in illness occurrence. It demonstrated using hypothetical scenario listeriosis from pasteurized milk heated at 72°C–75 °C 15–20 s and analysed which combinations factors resulted illness. Sixty-one cases were predicted 10 billion simulations, representing realistically large number servings this product. According to model caused by...

Variability in microbial growth is a keystone of modern Quantitative Microbiological Risk Assessment (QMRA). However, there are still significant knowledge gaps on how to model variability, with the most common assumption being that variability constant. This implemented by an error term (with constant variance) added top secondary (for square root rate). this may go against ecology principles, where differences fitness among bacterial strains would be more prominent vicinity limits than at...

Kinetic models to describe the degradation of anthocyanins (first-order model) and vitamin C (system ordinary differential equations) in a novel beverage, has been used as tool identify most relevant variables for kinetics support shelf-life estimation. The were based on an empirical dataset, accounting effect prior processing treatment (HHP at 400 MPa- 180s; HHP 600 MPa-180s; thermal 85ºC 15s), storage temperature (4 or 20ºC), use two different sweeteners (sucralose stevia). Using model...

Ensuring food safety, particularly for vulnerable groups, like infants and young children, requires identifying prioritizing potential hazards in chains. We previously developed a web-based decision support system (DSS) to identify specific microbiological (MHs) infant toddler foods through structured five-step process. This study takes the framework further by introducing systematic risk ranking (RR) steps rank MH risks with seven criteria: process survival, recontamination, growth...