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- Advice on how to start beekeeping, memories with bees and the uses of honey: results of an online questionnaire with European beekeepersPublication . Perichon, Samuel; Adamchuk, Leonora; Biber, Lejla; Božič, Janko; Chlebo, Róbert; Filipi, Janja; Leidenberger, Sonja; Mavrofridis, Georgios; Özgör, Erkay; Pocol, Cristina Bianca; Porporato, Marco; Rodríguez-Flores, María Shantal; Vilas-Boas, Miguel; Zacepins, AleksejsBeekeeping is a demanding activity that requires both particular human qualities from those who practise it and an environment that is favourable to bees. This is why the interviewed beekeepers advise to take time to think before starting to keep the bees, to find a mentor, and to always have the desire to get to know the bees even if this is not enough for success. In Northern and Western Europe, beekeepers consider patience and calmness as essential qualities to be a “good beekeeper”, while in Southern Europe, passion for bees is the main driver of success. The reasons for abandonment or failure also include human and environmental factors. To better understand the relationship between beekeepers and their bees, interviewees were encouraged to share their best memories. With years of experience, contemplative memories fade into memorable situations in which bee practices are described, and then in turn, they fade into moments of sociability. Honey harvesting plays an important role. Productive considerations are more expressed in Southern Europe, where it is an exceptional harvest that marks on people’s minds, more than the first honey harvest. The strong connection to their bees and the territory they live in is also expressed in the choice of their favourite honey. Many beekeepers mentioned the local honey production, which they are proud to produce with their own bees, even though they sometimes became criticized for a too high price for this local product. © 2024 International Bee Research Association.
- Analysis of Airborne Fungal Spores in Lima, Perú (2021–2024): Seven Clinically Important Spore TypesPublication . Idiaquez, Alexa Paredes; Calderón-Llosa, Oscar; Feliciano, Manuel; Sánchez-Reyes, EstefaníaFungal spore calendars help illustrate the abundance and distribution of spores throughout the year, enabling clinicians and patients to predict and treat allergic symptoms based on spore presence and concentration. This three-year study (2021–2024) established the first fungal spore calendar for the most clinically important spore types in Lima, Perú: Alternaria, Cladosporium, Nigrospora, Curvularia, Drechslera, Fusarium, and Stemphylium. Air sampling was performed using a Burkard volumetric spore trap placed on the rooftop of SANNA Clínica el Golf in San Isidro, Lima. Cladosporium was the most abundant (37,945 spores/m3), followed by Nigrospora (11,558), Curvularia (3946), Fusarium (2454), Alternaria (2138), Drechslera (1850), and Stemphylium (201). The highest concentrations of Alternaria, Nigrospora, Curvularia, and Drechslera were recorded in 2023–2024, with seasonal peaks mainly during spring/summer. Meteorological correlations showed that Alternaria, Cladosporium, Nigrospora, and Curvularia were positively correlated with temperature while Drechslera had a negative correlation. Cladosporium, Curvularia, Fusarium, and Stemphylium were negatively correlated with relative humidity, while other types showed a mix of both positive and negative responses or inverse responses. These two meteorological parameters are likely the main influences on spore concentrations; however, other factors may include other meteorological parameters. Cladosporium correlated positively with southwesterly winds, and negatively with northwesterly, winds, and Curvularia was positively correlated with northeasterly winds.
- Anthropogenic Barriers Limit Fish Access to Essential Habitats in the Amazon in the Face of Climate ChangePublication . Yofukuji, Kátia Yasuko; Fabrin, Thomaz Mansini Carrenho; Stabile, Bruno Henrique Mioto; Agostinho, Angelo Antonio; Jézéquel, Céline; Batista‐Silva, Valéria Flávia; Esser, Luiz Fernando; Ferreira, José Hilário Delconte; Ré, Reginaldo; Tedesco, Pablo A.; Azevedo, João C.; Bailly, DayaniBarriers represent one of the greatest threats to river integrity and freshwater fish, as they fragment habitats and impair species dispersal, particularly in a scenario of climate change. In this context, we applied a novel framework that combined predictions of species distribution models with a river connectivity index to identify accessible and climatic‐environmental suitable habitats for frugivorous and socioeconomically important fish in the Amazon basin. We also ranked dams based on their potential for river fragmentation and blocking access to climate refuge for fish species that provide essential ecosystem functions and services in the Amazon. Our results revealed that there are still extensive areas that remain both connected and climatic‐environmentally suitable along the Amazon‐Solimões rivers, acting as core areas for fish dispersal and tracking suitable habitats. However, the planned expansion of hydropower infrastructure combined with climate change can lead to a contraction of areas that will remain simultaneously climatic‐environmental suitable and connected. By identifying and ranking the most impactful barriers, our results can provide innovative and applicable information for sustainable energy planning decisions in the Amazon. These results can inform policies and conservation actions aimed at preserving river connectivity, biodiversity, and ecosystem services under rapidly changing conditions.
- Application of encapsulated tomato by-product extract as a colorant in mascarponePublication . Molina, Adriana K.; Leichtweis, Maria Gabriela; Machado, Manuela; Silva, Sara; Pintado, Manuela; Barreira, João C.M.; Dias, Maria Inês; Prieto Lage, Miguel A.; Barros, Lillian; Pereira, CarlaAgricultural by-products, often underutilized, represent a significant opportunity to obtain sustainable value-added products to develop new functional foods. In this context, the (typically discarded) aerial parts of tomato plants (Solanum lycopersicum L. var. cerasiforme), were studied as new sources of natural bioactive compounds, focusing the extraction and encapsulation (using spray drying with maltodextrin as the encapsulant) of chlorophylls. The encapsulated natural colorant was subsequently incorporated into mascarpone cheese to assess its stability and effect on nutritional and antioxidant properties. The obtained extracts were mainly characterized by high concentrations of bioactive compounds, particularly quercetin-3-O-deoxyhexoside (14.4 ± 0.3 mg/g). The colorant imparted a greener hue to the mascarpone (a* –6.0 ± 0.05 vs. –1.7 ± 0.05 in control, p < 0.001) and maintained antioxidant activity (OxHLIA EC₅₀ = 1440 ± 72 to 1166 ± 66 μg/mL, p = 0.030) without altering the nutritional profile (p > 0.05). Moreover, no cytotoxicity was observed, and the fatty acid composition remained unchanged. Accordingly, the studied encapsulated colorant might be used as a functional ingredient in other dairy products, imparting an attractive color while preserving nutritional integrity. In conclusion, the incorporation of TAPC is an effective strategy to enrich dairy products with natural pigments and bioactive compounds without compromising quality. Future research is needed to explore its application in other food matrices and assess long-term storage effects.
- Assessing the Role of Phosphorus, Starter Nitrogen and Boron in Subterranean Clover and Annual Ryegrass Grown in Acidic Soils Under Mediterranean Conditions in PortugalPublication . Sawimbo, Almeida; Aguiar, Peltier; Arrobas, Margarida; Aguiar, Carlos; Rodrigues, Nuno; Jongen, Marjan; Teixeira, Ricardo F. M.; Domingos, Tiago; Rodrigues, Manuel ÂngeloIn Mediterranean pasture systems, maintaining legume persistence and productivity is often constrained by phosphorus (P) deficiency in acidic soils. Although small doses of starter nitrogen (N) are commonly used in pulse crops to support early growth before N fixation begins, this practice has not been widely tested in legume-grass mixtures. In addition, boron (B), a micronutrient particularly important for dicot species, may also influence legume performance under these conditions. Thus, this study investigated the effects of P application on dry matter yield (DMY) and nutrient uptake in subterranean clover (Trifolium subterraneum L., cv. Denmark), annual ryegrass (Lolium multiflorum Lam., cv. Falladino) and their mixture, using a pot experiment with acidic soils from two distinct locations in Portugal. The study also evaluated the impact of a small N starter dose and B application. Although Soil 2 had higher acidity (pH 5.0) than Soil 1 (pH 5.4), it supported greater biomass production, likely due to its higher organic carbon (C) content (50.8 g kg-1), which may have buffered soil acidity. P application significantly increased P uptake, DMY and N accumulation in legumes, suggesting a critical role in nodulation and/or nodule function. The N starter had no significant effect, likely because sufficient N was released from soil organic matter prior to the onset of biological N fixation. While the B application increased tissue B concentrations, it did not affect DMY, possibly because B was adequately available from organic matter. These findings highlight the importance of P in legume management in pasture systems and suggest that, in soils with sufficient organic matter, the application of starter N and B may not be necessary.
- Assessing the Shelf-Life of Olive Oil Under Different Storage Conditions: A Review of Predictive ModelsPublication . Ferreiro, Nuno Manuel; Veloso, Ana C.A.; Pereira, José Alberto; Rodrigues, Nuno; Peres, António M.Olive oil holds a significant position in the global vegetable oil market, often reaching high prices compared to other vegetable oils. However, like other oils, it is vulnerable to oxidation, which can degrade its quality during storage, making it essential to determine its shelf-life. So, kinetic or empirical models have been developed to estimate how long olive oil can maintain the legal quality standards necessary for its commercial classification or to be marketed with nutritional or health claim. This study reviews recent advancements in modelling approaches to predict the shelf-life of olive oil under different storage conditions, namely storage duration (from 2 months to 2 years), temperature (20–50 ºC), and light exposure (light versus dark storage). Most models estimate the timeframe in which olive oil remains compliant with regulatory requirements for specific commercial grades, namely extra virgin olive oil, with fewer models addressing health-related claims. Developed models include pseudo zero-, pseudo first-, and pseudo second-order kinetic models and empirical models, derived from experimental data on the oil’s chemical stability over time. While empirical models can be highly accurate, they often require extensive chemical data, including for compounds for which no legal thresholds exist, and complex statistical techniques, limiting their use by non-specialists. In contrast, kinetic models offer simpler and user-friendly mathematical equations. Nonetheless, olive oil’s shelf-life predictions remain influenced by factors such as initial oil composition, packaging materials, and storage conditions, underscoring the ongoing need to refine the predictive models.
- Assessment of the potential toxic of naringenin nanoparticles using ex vivo and in silico modelsPublication . Costa, Gustavo Barreto; Rossi, Bruna Franzon; Oliveira, Byanca P.M.; Santo, Diego Espirito; Leimann, Fernanda Vitória; Vitória Leimann, Fernanda Vitória; Romero, Adriano Lopes; Peron, A. P.; Gonçalves, Odinei HessAbstract Naringenin is a flavonoid known for its anti-inflammatory, antineoplastic, antiatherogenic, and antioxidant properties. However, it has poor technological characteristics and limited bioavailability, which hinder its use in food applications. Nanoencapsulation could address these limitations, but safety concerns regarding nanoengineered bioactives need to be resolved before they can be effectively utilized as food additives. The objective of this study was to evaluate the potential cytotoxic, genotoxic, and mutagenic effects of both free and encapsulated naringenin through in vivo experiments using Allium cepa L. roots, along with pharmacokinetic and molecular docking analyses. The results showed that naringenin nanoparticles did not produce significant changes in the cell division index of meristematic cells in A. cepa roots. Additionally, no significant alterations in the mitotic spindle or chromosomal breaks were observed. Molecular docking studies indicated that naringenin effectively binds to the active site of the catalase enzyme (CAT) in a competitive manner, while it attaches to a site away from the active site of superoxide dismutase (SOD2), demonstrating a non-competitive interaction. ADMET property assessments suggested that naringenin exhibits relatively low toxicity and has favorable molecular characteristics for oral administration. In summary, this study supports the potential of naringenin, particularly in its nanoencapsulated form, as a safe and effective ingredient for functional foods, provided that safety concerns regarding nanoencapsulation are adequately addressed.
- Association between handgrip strength and mortality in individuals undergoing hemodialysis: A retrospective cohort studyPublication . Klippel, Leticia de Paiva Souza; Martins, Cleodice Alves; Barbosa, Karen dos Santos; Leandro, Larissa Vitória Batista; Cattafesta, Monica; Cunha, Alexandre Cardoso da; Soares, Ana Cristina de Oliveira; Prado, Camila Bruneli do; Ferreira, Júlia Rabelo Santos; Peterle, Fernanda Zobole; Almeida-de-Souza, Juliana; Haraguchi, Fabiano Kenji; Furtado, Elane Viana Hortegal; Neto, Edson Theodoro dos Santos; Salaroli, Luciane BrescianiHandgrip strength offers a valuable method to detect changes and reduced muscle strength and frailty and can help improve prognosis by early diagnosis. Therefore, the aim of the study was to evaluate the association between reduced muscle strength and mortality in individuals undergoing hemodialysis. Retrospective cohort study with 994 individuals. Sociodemographic, clinical, and lifestyle variables were obtained from a 2019 study. Mortality data were sourced from death certificates recorded from 2019 to 2022 in the Mortality Information System. Muscle strength was classified based on the following cut-off values: <27 kg for men and <16 kg for women. Survival curves were constructed using the Kaplan-Meier method and Cox Regression was used to evaluate the effect of handgrip strength and age on the time. More than 65 % of individuals in the sample show depleted strength, most of which were older adults (43.25 %, p < 0.001) and men (41.32 %, p = 0.008). Older adults with depleted strength showed a significantly higher number of observed deaths than expected ones (p < 0.001). After adjustment, HGS remained a significant predictor, associated with a 49 % increased risk of death (95 % CI: 1.16-1.91, p = 0.002). Having more than 11 years of formal education demonstrated a protective effect, reducing the risk of death by 1.6 times (95 % CI: 0.41-0.88, p = 0.009). Diabetes was found to be associated with almost a twofold increase in the risk of mortality (95 % CI: 1.54-2.49, p < 0.001). The decrease in handgrip strength predicts mortality in individuals undergoing hemodialysis with the risk being higher among older adults, those with diabetes and individuals with fewer than 11 years of education. (c) 2025 European Society for Clinical Nutrition and Metabolism. Published by Elsevier Ltd. All rights are reserved, including those for text and data mining, AI training, and similar technologies.
- Azure A as a promising candidate for antimicrobial photodynamic therapy of acne-related bacteriaPublication . Herculano, Leandro S.; Marcon, Caroline T.; Pires, Tânia C.S.P.; Canan, Cristiane; Fiorese, Mônica L.; Malacarne, Luis C.; Tessaro, André L.; Amaral, Joana S.; Barros, LillianAntimicrobial photodynamic inactivation (aPDT) is an effective technique for treating acne vulgaris, due to its efficiency in inactivating multiresistant bacteria and the absence of systemic side effects. This study investigated the potential of the dye Azure A (AZA), belonging to the phenothiazine class, as a photosensitizer (PS) in aPDT to combat the gram-positive bacteria Staphylococcus epidermidis and Cutibacterium acnes, both associated with inflammatory acne vulgaris. The efficiency of AZA was compared to Orthotoluidine Blue (OTB), evaluating the absorbance spectra, singlet oxygen generation rate, and minimum bactericidal concentration (MBC) at different optical fluence values and concentrations. The results demonstrated that AZA and OTB have similar spectroscopic characteristics and single oxygen generation rates, and they could inactivate both bacteria at an MBC of 0.78 for the smallest tested optical fluence. These findings indicate that AZA is an excellent candidate for topical aPDT applications in treating acne vulgaris and other associated infections by such bacteria.
- Banana Peels as Substrate for Lactic Acid Production: Upstream Fermentation BioprocessPublication . Pedrosa, Mariana C.; Heleno, Sandrina A.; Alvarez, Cristina; Susmozas, Ana; Ballesteros, Ignacio; Pintado, Manuela; Barros, Lillian; Carocho, MárcioBanana peels account for around 30–40% of the banana’s weight and represent an industrial waste. This biomass can be used as an eco-friendly solution for biotechnological bioprocesses. Still, due to the fibrous nature of banana peels, pretreatment becomes essential to enhance the effectiveness of enzymes on the hydrolysis of complex carbohydrates. This study aims to determine the best pretreatment and enzymatic hydrolysis conditions to produce a fermentation substrate suitable for producing lactic acid from the peels. Methods: A diluted H2SO4 (0.5% and 0.25%) was used in an autoclave for 10 min at 121 °C. The pretreated material was subjected to several enzymatic hydrolysis tests in which two variables were evaluated for their influence: solid load (10, 15 and 20%), and H2SO4 concentration (0.5 and 0.25% v/v). Commercial enzymes (cellulolytic enzyme mixtures and pectinase) were used. Results: All enzymatic hydrolysis yields of cellulose referring to glucose released in the hydrolysates surpassed 60% in all the conditions tested after pretreatment. After evaluating the pretreatment efficiency, the ideal parameters were defined as 0.25% H2SO4, and cellulolytic enzyme mixtures with 15 and 20% solid load. Subsequently, a screening was carried out in MRS + broth with the most suitable pH and temperature conditions for lactic acid production by Lacticaseibacillus rhamnosus. Conclusions: The results showed the potential of BP medium for lactic acid production, with yields of 0.91 g/g sugar in sugar-containing media from enzymatic hydrolysis at 15% solid load and 0.82 g/g sugar in media from 20% solid load assays.