Today, human activities are highly dependent on fossil fuels and industrialized forms of agriculture and have reached a level that could damage the Earth’s systems [...]

Softening dry food with water is believed to be more beneficial to the intestinal health and nutrients absorption of dogs by some owners, but there appears to be little scientific basis for this belief. Thus, this study aimed to compare feeding dry food (DF) and water-softened dry food (SDF) on stress response, intestinal microbiome, and metabolic profile in dogs. Twenty healthy 5-month-old beagle dogs were selected and divided into two groups according to their gender and body weight using a completely randomized block design. Both groups were fed the same basal diet, with one group fed DF and the other fed SDF. The trial lasted for 21 days. The apparent total tract digestibility (ATTD) of nutrients, inflammatory cytokines, stress hormones, heat shock protein-70 (HSP-70), fecal microbiota, short-chain fatty acids (SCFAs), branch-chain fatty acids (BCFAs), and metabolomics were measured. Results showed that there was no significant difference in body weight, ATTD, and SCFAs between the DF and SDF groups (<i>p</i> > 0.05), whereas feeding with SDF caused a significant increase in serum cortisol level (<i>p</i> < 0.05) and tended to have higher interleukin-2 (<i>p</i> = 0.062) and HSP-70 (<i>p</i> = 0.097) levels. Fecal 16S rRNA gene sequencing found that the SDF group had higher alpha diversity indices (<i>p</i> < 0.05). Furthermore, the SDF group had higher levels of <i>Streptococcus</i>, <i>Enterococcus</i>, and <i>Escherichia_Shigella</i>, and lower levels of <i>Faecalibacterium</i> (<i>p</i> < 0.05). Serum and fecal metabolomics further showed that feeding with SDF significantly influenced the purine metabolism, riboflavin metabolism, and arginine and proline metabolism (<i>p</i> < 0.05). Overall, feeding with SDF caused higher cortisol level and generated effects of higher intestinal microbial diversity in dogs, but it caused an increase in some pathogenic bacteria, which may result in intestinal microbiome disturbance and metabolic disorder in dogs. In conclusion, feeding with SDF did not provide digestive benefits but caused some stress and posed a potential threat to the intestinal health of dogs. Thus, SDF is not recommended in the feeding of dogs.

The importance of integrating water, energy, and food (WEF) resource management into nexus approach has been widely recognized. However, despite its rapid growth, there are little discussion of the knowledge transfer from nexus research to practice of WEF nexus implementation in Africa. This research examines the WEF nexus implementation baseline through critical analysis of present studies and official project reports initiated by African government institutions from 2011 to 2021. The findings indicate that numerous WEF nexus research projects in Africa focus on generating fundamental knowledge with limited practice. Indeed, among the 237 WEF-related applied projects analyzed, only 26 projects correspond to the nexus approach in three resource sectors. Many proposed projects are managed at the level of individual resource areas and are prioritized according to urgent needs or regional contexts rather than being integrated for mutual benefit. The word "production" receives a high score in the statistics of term frequency and inverse document frequency (TF-IDF), expressing that it is considered very relevant in the process of implementing the nexus approach. The results of the similarity index between the content messages of the academic articles and the project implementers' reports show a low similarity score of 0.25, indicating some imbalance in understanding and adapting nexus concepts between these two critical sectors. Hence, reflecting on the various nexus opportunities reviewed in this study, such as Bonn nexus conceptions and projects allocation, may serve as a focal point and assist WEF nexus implementers, particularly scholars, in resolving the numerous ambiguities that exists in WEF nexus research and practice.

Antimicrobial resistances (AMR) present an emerging concern in human and animal health policy, as well as in water policy as a consequence of the pollution of water resources by antibiotic substances stemming from manure and sewage treatment plants. In 2017, the European Commission passed an AMR Action Plan and urged member states to develop national action plans to coordinate action across human, animal and environmental health. Building on the literature on policy integration we conduct comparative case studies in order to explore how European countries address the AMR challenge and if policies respond to the cross-sectoral character of AMR. We find that policy integration varies across countries provide explanations for why this is the case and come to three main conclusions: Firstly, and confirming previous research, a pronounced executive capacity, the presence of green parties in parliament, and a consensus democracy are each necessary but not sufficient conditions in configurations leading to policy integration. Secondly, executive capacity only results in policy integration if there is no important agricultural sector articulating its interests. Thirdly, even if there is an important agricultural and/or livestock sector, green parties in parliament or consensus democracies can balance these interests towards a successful policy integration.

Polyglycerol polyricinoleate (PGPR) was used as the oil-soluble surfactant and beeswax was used as the oil phase to formulate a water-in-oil (W/O) high internal phase emulsions (HIPEs) for the encapsulation and protection of probiotics. The physicochemical properties of the W/O HIPEs and the survival of the encapsulated probiotics when exposed to acidic conditions and in vitro digestion were investigated. The viability of the probiotics decreased slightly when exposed to high-speed shearing. The rheological analysis, microstructural images, physicochemical stability showed that the W/O HIPEs remained relatively stable. The survival of the probiotics loaded in the SK-HIPEs (prepared with skim milk) was much higher than in the NS-HIPEs (prepared with normal saline) during storage at 4 °C. An in vitro gastrointestinal model showed that encapsulation of the probiotics enhanced their survival. This study provides useful insights into the utilization of W/O HIPEs to improve the efficacy of probiotics in the food industry.

Water-energy-food (WEF) nexus system enables to examine the implications for sustainability. Inevitably, shocks from socioeconomic subsystems would impact the stability and reliability of the WEF nexus system. This paper aims to identify the reasons for changes in water withdrawal, energy consumption, and crop consumption, and uncover differentiated effects from both the national and provincial perspectives, and finally offer the main strategies in China that balance socioeconomic development and resource-saving from the consumption perspective. Empirical results in China from 2011 to 2017 show that (1) the reduction of per capita energy consumption leads to a decrease in water withdrawal, while increased population and water withdrawal intensity in energy sectors have adverse effects on diminishing water withdrawal. (2) The decrease in energy consumption mainly results from improved energy use efficiency for the whole period. (3) Reduction in national crop consumption is mainly caused by the decline in energy consumption per person over the years, which implies a positive effect of food-energy nexus effect on the decrease in crop consumption. (4) Spatially-temporarily contribution rates of drivers offer implications to the implementation of resource-saving and sustainability in the future. Directions and magnitudes of driving forces are different from the sub-nation perspective, hence, finally takes Beijing-Tianjin-Hebei (BTH) region as an example, we analyze clearly the relative planning and reports and propose several pathways to accelerate the sustainable development in the BTH region.

The food self-sufficiency policy has always featured as an unquestionable policy objective for Egypt. This is understandable when one considers both the high population growth and the social and political vulnerability associated with a dependence on food imports and world market food prices such as wheat. Intensive agriculture has led to a growing subsidy burden for the Egyptian government. In addition, the agricultural fields in Egypt are commonly distributed with relatively small sizes parcels that usually reduce the reliability of the agricultural sector, particularly in the delta region, to meet the national food policy. On top of that, climate change, through changing weather patterns and increased temperatures, is affecting agricultural yields and thus farmers’ livelihoods. A water profitability analysis was conducted for three governorates in the Nile Delta in Egypt to establish a baseline and assess the net return per unit of water of the main crops in each of these governorates; this can act as a reference of the water profitability of different crops before they are affected by climate change and other internal and external factors. The analysis was based on extensive in-person surveys in each governorate in addition to workshop discussions with farmers. The study has highlighted the impact of a lack of extension services, which limits farmers’ ability to increase their land and water productivity. Farmers with more access to subsidized production inputs managed to achieve higher levels of water profitability even on smaller lands. Finally, we drew from our findings key policy actions to improve water profitability and land productivity for farmers in the Nile Delta to achieve higher levels of food security. This will help build resilient food production systems that are reliable in the face of climate change and other drivers. In addition, an integrated nexus strategy and plan for the inter- and intra-country is recommended to address the challenges related to food and climate security.

With the aim of developing bioprocesses for waste valorization and a reduced water footprint, we optimized a two-step fermentation process that employs the oleaginous yeast Cutaneotrichosporon oleaginosus for the production of oil from liquid cheese whey permeate. For the first step, the addition of urea as a cost-effective nitrogen source allowed an increase in yeast biomass production. In the second step, a syrup from candied fruit processing, another food waste supplied as carbon feeding, triggered lipid accumulation. Consequently, yeast lipids were produced at a final concentration and productivity of 38 g/L and 0.57 g/L/h respectively, which are among the highest reported values. Through this strategy, based on the valorization of liquid food wastes (WP and mango syrup) and by recovering not only nutritional compounds but also the water necessary for yeast growth and lipid production, we addressed one of the main goals of the circular economy. In addition, we set up an accurate and fast-flow cytometer method to quantify the lipid content, avoiding the extraction step and the use of solvents. This can represent an analytical improvement to screening lipids in different yeast strains and to monitoring the process at the single-cell level.