Context: Propolis has promising biological activities. Propolis samples from the Northeast of Bahia, Brazil – sample A from Ribeira do Pombal and B, from Tucano – were investigated, with new information regarding their biological activities. Objective: This paper describes the chemical profile, antioxidant, anti-glycation and cytotoxic activities of these propolis samples. Material and methods: Ethanol extracts of these propolis samples (EEP) and their fractions were analyzed to determine total phenolic content (TPC); antioxidant capacity through DPPH^•, FRAP and lipid peroxidation; anti-glycation activity, by an in vitro glucose (10 mg/mL) bovine serum albumine (1 mg/mL) assay, during 7 d; cytotoxic activity on cancer (SF295, HCT-116, OVCAR-8, MDA-MB435, MX-1, MCF7, HL60, JURKAT, MOLT-4, K562, PC3, DU145) and normal cell lines (V79) at 0.04–25 μg/mL concentrations, for 72 h. The determination of primary phenols by ultra high-pressure liquid chromatography coupled to tandem mass spectrometry (UHPLC-MS/MS) and volatile organic compounds content by gas chromatography-mass spectrometry (GC-MS) were also performed. Results: The EEP polar fractions exhibited up to 90% protection against lipid peroxidation. The IC₅₀ value for anti-glycation activity of EEP was between 16.5 and 19.2 μg/mL, close to aminoguanidine (IC₅₀ = 7.7 μg/mL). The use of UHPLC-MS/MS and GC-MS allowed the identification of 12 bioactive phenols in the EEP and 24 volatile compounds, all already reported. Conclusions: The samples present good antioxidant/anti-glycation/cytotoxic activities and a plethora of biologically active compounds. These results suggest a potential role of propolis in targeting ageing and diseases associated with oxidative and carbonylic stress, aggregating value to them.

The mango has short postharvest shelf life which varies from 6 to 10 days at room temperature in its fresh form. The objective of this study was to evaluate the effect of usage of edible coatings based of cassava starch and chitosan on post-harvest shelf life of mango. Mangoes of Tommy Atkins variety were covered with nine different formulations of coatings in a factorial block experimental design. The fruits were stored at 25 °C and evaluated during storage for the weight loss (%), color parameters, sensory attributes evaluated by trained panel, the rate of CO₂ production and microbiological contamination on the peels. Results analysed by linear regressions and ANOVA, demonstrated that chitosan showed significant effect on weight loss (%) and on values of L*, a*, b*, chroma, ºhue, peel color, texture, aroma and time which correlated well for suitability of fruit consumption. The formulation containing 0.25% of chitosan and 0.5% of cassava starch showed most favorable results as it presented a post-harvest shelf life of 3 days more than the control fruits and lower rates of CO₂ production, showing that this coating actually decreased the rate of the respiratory processes of mango, without compromising the proper ripening of the fruit.

O Queijo de Manteiga é um produto de grande consumo e valor socioeconômico para o Nordeste brasileiro. Para sua elaboração, a Legislação estabelecida que a coagulação do leite seja realizada com ingredientes orgânicos; no entanto, os pequenos produtores realizam essa etapa da ação da microbiota natural do leite. O objetivo deste trabalho foi avaliar o uso da acidificação microbiana com cultura iniciante tipo “LD”, comparativamente à acidificação direta com o uso de emulsificante, sobre as características químicas, químicas e microbiológicas do produto final. O experimento foi realizado em triplicata, representando processos independentes. Os controles não tiveram impacto sobre o teor de gordura dos queijos, mas o pH, a umidade e o teor de cinzas do queijo elaborado por acidificação direta superior (p≤0, 05) ao queijo elaborado por acidificação microbiana. O queijo elaborado por acidificação direta mostrou menos firme e menor mastigabilidade (p≤0,05). Todos os queijos atendem ao estabelecido pela IN n ° 60/2019, com contagem de coliformes fecais <3,0 NMP / g, ausência de Salmonella sp e Staphylococcus spp <10,0 UFC / g. No entanto, uma contagem de bactérias lácticas foi maior no queijo elaborado por acidificação microbiana. Por apresentar menor pH e maior número de bactérias, é possível que queijo de manteiga permita uma acidificação microbiana, maior segurança alimentar ou queijo elaborado por acidificação direta, dado que bactérias láticas, afetado pela produção de bacteriocinas, preconceito ou efeito inibidor. sobre o crescimento de bactérias patogênicas. Estudos futuros devem explorar esta hipótese.

The use of active learning methods combined with the early insertion of students in the activities of professional daylife, becomes a potential alternative to reduce the dichotomy between theory and practice. In the Maternal-Child Nutrition course of a Nutrition graduation, due to the impossibility of practical classes and the contact with the public / patient due to the social distance necessary to fight the pandemic of COVID-19, an alternative found was making an activity, in remote format, to simulate a clinical case. With the objective of identifying which Strands of Scientific Learning (FAC) were present in the speeches of the students during this activity, this research found the following FAC: interest, understanding of knowledge, scientific thinking, self identification as a professional; which shows that the use of clinical cases can be made to bring students closer to the public/patients, being an alternative that minimizes the insecurity of students, in face-to-face care in the future.

Objetivo: Relatar os resultados da intervenção nutricional baseada no Guia Alimentar para a População Brasileira, com foco na redução do consumo de alimentos ultraprocessados, em mulheres adultas diagnosticadas recentemente com Síndrome dos Ovários Policísticos. Método: Relato descritivo, realizado com três mulheres com diagnóstico clínico e ou laboratorial da síndrome, consumidoras de alimentos ultraprocessados. O acompanhamento nutricional ocorreu por três meses, com avaliação e reavaliação de dados alimentares e antropométricos, orientações nutricionais, planejamento alimentar e aplicação de questionários validados. Resultado: Observou-se um elevado consumo de alimentos ultraprocessados, baixo consumo de frutas, verduras e legumes e inadequações no consumo dos macronutrientes e micronutrientes. Após a intervenção, notou-se melhorias no trato gastrointestinal, ingestão de fibras, ciclo menstrual, perda de peso, disposição e qualidade do sono. Conclusão: O acompanhamento nutricional associado à reeducação alimentar contribui para a melhoria da qualidade de vida de mulheres com Síndrome do Ovário Policístico.

Adults with type 1 diabetes mellitus (T1DM) face elevated cardiovascular risk, and regular exercise is a key non-pharmacological mitigation strategy. However, safe prescription requires cardiovascular and glycemic monitoring, often unfeasible in real-world gyms. Low-cost psychophysiological tools (ratings of perceived exertion—RPE and enjoyment) may offer practical alternatives. This exploratory randomized crossover trial examined whether post-session RPE and enjoyment are associated with acute heart rate (HR) and capillary blood glucose (BG) responses to gym-based aerobic and resistance training. Twelve adults with T1DM (29.8 ± 7.8 years; HbA1c 7.7 ± 1.6%; LDL-c 119.5 ± 24.4 mg/dL) completed three ~30 min sessions: aerobic interval training (AE) and two resistance protocols (STA, STB). HR and BG were measured pre-, immediately post-, and 20 min post-exercise; RPE and enjoyment, post-session. Multiple linear regression, controlling for exercise session type, examined associations of RPE and enjoyment with resting HR, BG, and percentage of heart rate reserve (%HR). RPE was higher after STA and STB than AE (p < 0.001; η²p = 0.529), while enjoyment and %HR were similar across sessions. Neither variable was associated with resting HR or BG (all adjusted R² < 0; all p > 0.05). Controlling for exercise session type, RPE was a significant positive predictor of %HR (β = 0.44, p = 0.044), whereas enjoyment was not (β = −0.06, p = 0.719); however, the overall %HR model did not reach statistical significance (adjusted R² =0.119; F(4,31) = 2.183; p = 0.094). These exploratory findings suggest that RPE, but not enjoyment, may serve as a low-cost adjunct intensity marker to inform exercise prescription in adults with T1DM at elevated cardiovascular risk; however, replication in larger samples is needed before clinical recommendations can be drawn. Direct BG monitoring remains essential for safety.