O gengibre (Zingiber officinale) é uma planta exótica da família Zingiberaceae, originária do sudeste asiático e chegou ao Brasil na época das grandes navegações. É popularmente utilizado em preparações de bebidas típicas, na medicina natural contemporânea entre outros. Está entre as especiarias mais saudáveis e saborosas do planeta, o que a tornou uma cultura comercial nos estados de Espírito Santo, São Paulo e Paraná nas últimas décadas. Além disso, possui diversos efeitos benéficos para a saúde humana. Nesse contexto, o objetivo do trabalho foi relatar as atividades e efeitos que o rizoma de gengibre causa no organismo humano, destacando a importância do seu cultivo para a saúde humana. Para isso, foi realizado um estudo de revisão de literatura, com abordagem qualitativa, composta por estudos publicados em português e inglês identificados nas bases de dados da Biblioteca Virtual de Saúde, Lilacs, Scielo e Scopus. Resultados indicam que o gengibre é uma especiaria milenar, presente em diferentes regiões do mundo, possui diferentes aplicações, desde a culinária, até mesmo para tratamentos, sendo eficaz como recurso antiinflamatório, diurético, antipirético, agindo em condições como doenças reumáticas, desconfortos gastrointestinais e muitas outras doenças. No entanto, o consumo excessivo ou incorreto do gengibre pode acelerar o metabolismo e causar riscos à saúde, especialmente em crianças, gestantes e pessoas com hipertireoidismo ou cardiopatias. Em conclusão, o gengibre é um alimento com propriedades medicinais que podem trazer diversos benefícios para a saúde. No entanto, é altamente recomendável buscar a orientação de um profissional de saúde antes de utilizar o gengibre como tratamento ou suplemento, a fim de avaliar a adequação e segurança do seu uso, garantindo assim os benefícios para a saúde e minimizando os riscos potenciais associados ao seu consumo. Palavras-chave: Gengibre; Benefícios à saúde; Atividades biológicas; Organismo humano; Efeitos fisiológicos.

Although cereal grain products have low protein content, they can contribute up to 25% of total protein in low‐trophic level/omnivorous fish diets. Thus, understanding the amino acid contribution of these ingredients becomes crucial for meeting the dietary requirements of omnivorous fish. A digestible nutrient basis is essential for precise feed formulation. To address this, we conducted a digestibility trial to assess cereal grain products' gross nutrient and amino acid digestibility for tambaqui, a key species in Latin American aquaculture. Forty‐eight tambaquis (400 ± 20 g) were randomly assigned to six 310 L aquaria connected to a recirculating system following a completely randomised block design with five treatments and four replicates. The fish were fed test diets consisting of a 70:30 mixture of the reference diet and test ingredients. Chromic oxide was used in all diets as the indigestible marker at 2 g kg ⁻¹ . Results were analysed using ANOVA, and significant differences ( p < 0.05) were further assessed using the SNK multiple range test. Our findings revealed that corn and sorghum exhibited higher levels of amino acids and digestible energy than other ingredients. At the same time, broken rice showed the lowest amino acid digestibility and wheat middlings had the lowest digestible energy content. Overall, protein and amino acid digestibility in the feed ingredients ranged from 70% to 99%. These results indicate that tambaqui can efficiently digest plant proteins, even when sourced from carbohydrate‐rich ingredients, underscoring the potential of these products in formulating cost‐effective diets for this species.

Phosphorus is essential for fish growth as it is crucial in skeletal development and metabolic reactions. The dietary requirement for this mineral varies among fish species and growth stages. Therefore, the objective of this study was to determine the available phosphorus (AP) requirement for tambaqui during the grow‐out phase (± 400 to 1000 g) using growth parameters, whole‐body macronutrient composition, whole‐body, scales, and bone mineral content, biochemical blood parameters, and activity of antioxidant enzymes as response parameters. A total of 128 tambaqui (395 g ± 20) were distributed across 15 tanks (1000 L each) connected to a recirculating water system, following a completely randomized design with five dietary treatments (4.1, 5.8, 8.0, 9.1, and 10.3 g/kg of AP) and three replicates per treatment. The fish were fed with experimental diets to apparent satiation for 180 days. The apparent digestibility coefficients (ADC) of the experimental diets were also determined to report the requirement on an available nutrient basis. No mortality or apparent signs of P deficiency were observed during the growth trial. The ADC of the diets decreased with increasing total phosphorus levels. AP supplementation in the diet did not affect growth performance parameters except phosphorus utilization, which decreased linearly with increasing AP supplementation. Bone mineralization increased with dietary AP supplementation, while the scale and whole‐body mineralization were unaffected. Dietary AP levels, except for serum phosphorus and triglycerides, significantly affected blood biochemical parameters. The highest superoxide dismutase (SOD) activity was observed in fish fed 8 g/kg AP in the diet. The estimated requirement for the highest serum immunoglobulin concentration was 6.17 g/kg of AP. Our findings suggest that tambaqui in the grow‐out stage can develop adequately without inorganic phosphorus supplementation to plant‐based diets; 4.1 g/kg AP (or 25.2 mg AP/kg BW ^0.8 /day) seems to be sufficient to maintain growth parameters. However, this minimal level is associated with increased adiposity. To maximize bone mineralization, 10.3 g/kg AP (or 63.5 mg AP/kg BW ^0.8 /day) is required. Intermediate dietary levels (around 6.17 g/kg AP or 37.9 mg AP/kg BW ^0.8 /day) were associated with higher total serum protein, lysozyme, and immunoglobulin concentrations, suggesting possible physiological benefits.

Effective sustainable fish farming necessitates enhanced models that incorporate environmental variability and contemporary monitoring methods. This research presents an innovative framework for assessing and modeling the environmental carrying capacity based on phosphorus (ECCp) in tropical and neotropical lakes and reservoirs. The model evaluates phosphorus waste from tilapia farming (Oreochromis niloticus) under diverse climatic conditions and production scenarios in cage systems. Using bioenergetic modeling and Monte Carlo simulations, we estimated phosphorus retention in fish and maximum production limits across different temperatures (21 °C, 25 °C, 29 °C) and dietary phosphorus concentrations (0.8%, 1.2%, 2.1%) in Brazil’s Chavantes reservoir. Results indicated that phosphorus retention diminished with higher dietary phosphorus and increased temperatures, ranging from 51% (0.8% P) to 20% (2.1% P). Phosphorus discharge ranged from 3.3 to 20.5 kg/ton of fish produced. The ECCp model forecasted an allowable production of roughly 40 tons per year at full operational capacity, reflecting a 41% increase compared to current regulations. The model’s accuracy (96%) surpassed that of traditional regulatory frameworks, which rely on static parameters, emphasizing the shortcomings of existing practices. The findings promote enhanced modeling strategies, sophisticated monitoring, adaptive management, and revised public policies to mitigate phosphorus emissions and support sustainable aquaculture in tropical and neotropical regions.