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Descarte de resíduos agropecuários no município de Bacurituba-Maranhão

Wed, 08 Jul 2026 00:00:00 GMT

Título: Descarte de resíduos agropecuários no município de Bacurituba-Maranhão Abstact: Agriculture and livestock farming are among the main economic activities in Brazil. In recent years, the sector has recorded its highest growth, contributing to the expansion of the national economy. However, when not managed properly, the growth of this activity has caused significant environmental impacts, such as soil degradation, deforestation, and the contamination of water resources. Considering this problem, this research aimed to analyse and identify the treatment and final disposal of waste from agricultural activities in the municipality of Bacurituba-MA. The study is classified as descriptive research, as its objective is to report how agricultural waste management is carried out in the municipality. Data analysis showed that beef cattle ranching is the main activity developed in the region and that some producers still use incineration as a waste treatment method. Many recognize the environmental issues, acknowledging that burning and inadequate waste disposal can degrade the soil and contaminate water resources. Therefore, the lack of municipal infrastructure for final waste disposal results in practices of high environmental risk. Currently, burning is the main form of treatment and the open dump is the most common final destination, highlighting a cycle of pollution and degradation that compromises the quality of soil and water resources in the region

Avaliação da biodegradabilidade de bioplásticos à base de pectina e amido do mesocarpo do coco babaçu

Wed, 08 Jul 2026 00:00:00 GMT

Título: Avaliação da biodegradabilidade de bioplásticos à base de pectina e amido do mesocarpo do coco babaçu Abstact: The increased production and inadequate disposal of conventional plastics have intensified the search for biodegradable materials obtained from renewable sources. This study evaluated the biodegradability of biofilms produced with pectin and starch extracted from the mesocarp of babassu coconut, analyzing the influence of formulation composition on thickness, initial mass, final mass, and mass loss in soil. The formulations were prepared with starch, pectin, glycerol, and calcium chloride, according to a Central Composite Rotatable Design, totaling 11 experimental trials. The biofilms were produced by plate molding, dried in an oven at 40 °C for 18 to 20 hours, and stored in an environment with controlled relative humidity. Biodegradability was evaluated by the soil burial method for 10 days, in triplicate, with daily monitoring of mass loss. The films showed good visual formation, continuous structure, flexibility, absence of cracks, and coloration ranging from translucent white to yellowish beige. All trials showed mass reduction, with biodegradability ranging from 47.5% to 68.1%. Trial 1, composed of 1.16 g of starch and 1.16 g of pectin, showed the highest biodegradation, indicating that thinner films with lower mass tend to degrade more rapidly. Trial 6, with 8 g of starch and 4 g of pectin, showed the lowest biodegradability, suggesting greater resistance of the matrix due to its high starch content. It is concluded that thickness and the proportion between starch and pectin directly influenced the degradation behavior of the biofilms in soil

Mapeamento vetorial do uso e cobertura da terra na Fazenda Escola da UEMA Campus São Bento com dados coletados em campo e classificados segundo o padrão MapBiomas

Wed, 08 Jul 2026 00:00:00 GMT

Título: Mapeamento vetorial do uso e cobertura da terra na Fazenda Escola da UEMA Campus São Bento com dados coletados em campo e classificados segundo o padrão MapBiomas Abstact: The use of geotechnologies has stood out as an important tool for environmental planning and management, 14 allowing the identification and monitoring of different forms of land use and land cover. In this context, the present study aimed to map and characterize the land use and cover of the Fazenda Escola at the State University of Maranhão (UEMA), São Bento Campus, located in the Baixada Maranhense Environmental Protection Area. The research is characterized as descriptive, with a qualitative approach and exploratory nature, based on a bibliographic survey, field data collection, and the application of geoprocessing tools. The information was obtained with the aid of a GPS receiver and the OsmAnd application, and subsequently processed in QGIS software for the preparation of thematic maps. The classification of the areas was based on Collection 10 of the MapBiomas2024 Project. Seven classes were identified, with a predominance of Forest Formation, followed by Flooded Field and Swampy Area, Other Non-Vegetated Areas, Other Temporary Crops, Oil Palm, Other Perennial Crops, and Urbanized Area. The results demonstrate that the Fazenda Escola reconciles academic activities and agricultural production with native vegetation areas, highlighting the potential of geotechnologies to support conservation.

Avaliação da qualidade de ovos, do perfil dos consumidores e das condições de comercialização em São Bento-MA

Thu, 08 Jan 2026 00:00:00 GMT

Título: Avaliação da qualidade de ovos, do perfil dos consumidores e das condições de comercialização em São Bento-MA Abstact: Egg production plays an important role at the national level, as eggs are a food of high nutritional value, low cost, and widely consumed by the Brazilian population, with their quality being directly influenced by the stages of production, storage, transportation, and commercialization. The objective of this study was to evaluate the external and internal quality of eggs marketed in the municipality of São Bento-MA, assess the hygienic-sanitary conditions of commercialization sites, and identify the consumer profile. The consumer profile was evaluated through an online questionnaire containing questions on consumption habits and knowledge regarding the quality of commercial eggs. The hygienic-sanitary conditions of the establishments were analyzed through observational evaluation using a structured questionnaire adapted from RDC No. 216/2004, followed by calculation of the conformity index. For the evaluation of external and internal quality, 240 eggs were analyzed, with 80 eggs per establishment (40 white and 40 brown eggs), collected from supermarkets, fruit stores, grocery/retail stores, and open-air markets. External and internal egg variables were analyzed using analysis of variance (ANOVA) and Tukey’s test (p < 0.05), with the InfoStat software. The results regarding the consumer profile indicated that eggs are frequently included in the population’s diet, mainly due to their nutritional value and economic accessibility. Supermarkets were the main purchase locations and showed the highest conformity indices, while grocery stores presented the lowest indices and more precarious commercialization conditions. Eggs collected from fruit stores showed higher average weight and more intense yolk color; however, all evaluated eggs showed reduced freshness, with Haugh Unit values and yolk index below ideal levels, associated with failures in commercialization conditions. Variables related to shell thickness and shell percentage remained within recommended standards. It was concluded that, in the municipality of São Bento-MA, there is a high consumption of white eggs driven by economic accessibility. Although the eggs showed acceptable external quality, internal quality was compromised in all evaluated establishments, highlighting the need for improvements in commercialization conditions