Modeling Architectures and Reference Models: Development and Maintenance Open Source ERP

The adoption Enterprise Resource Planning (ERPs) by small and medium-sized businesses may not possible its cost. At same time, whenever adapt ERP specific needs company, user becomes dependent developers due to the lack access and knowledge respective code. Free and open source software can promote advantages companies, however, for their adoption, it is necessary to develop techniques tools facilitate implementation and maintenance code. This article highlights the importance of defining modeling architectures and reference models for development and maintenance open source ERPs, especially the ERP5 project

Assessment of chemical hazards in insect meal production for aquaculture feeds

Abstract of communication presented at the 74th EAAP International Congress on Animal Science. Lyon, France, 26 August-1 September 2023N/

Antimicrobial resistance on Staphylococcus aureus isolated from cases subclinical mastitis in goats.

Caprine mastitis is one of the most common diseases in dairy herds, causing damage mainly due to the decrease in milk production after the invasion of the infectious agent in the secretory epithelium of the mammary gland. Species Staphylococcus aureus is the most pathogenic agent in the mammary gland, having important implications for public health, since it produces enterotoxins that survive the heat treatments applied to milk. The use of proper antibiotics is an important tool for the treatment of the disease. However, they should be used judiciously, since the main cause of failure in therapy is bacterial resistance to the drug. This study uses an antibiogram to evaluate the resistance of microorganisms isolated from goat milk samples with subclinical mastitis. Antibiotics ampicillin and rifampicin showed 50% resistance in strains from Minas Gerais and 83.3% in strains from São Paulo, respectively, which would be ineffective in the treatment of mastitis in these herds. Therefore, the use of antibiogram as a control tool helps Veterinarians and owners in decision making regarding the appropriate treatment

Custos da preservação ambiental em diferentes tipos de unidades de produção agrícola: o caso da região do Corredor Cantareira-Mantiqueira.

Neste capítulo, foram identificados diferentes custos de oportunidade incorridos pelos produtores rurais da parte paulista do corredor Cantareira-Mantiqueira. Baseado em uma tipologia de unidades de produção agropecuária (UPA), pretende-se contribuir para a implementação de uma política de pagamento por serviços ambientais na região. Foram identificados sete grupos principais de produção agropecuária a partir de informações do Levantamento de Unidades de Produção Agropecuária do estado de São Paulo de 2007/08. Com base em estimativas das receitas e despesas da produção desses grupos, foi identificada uma elevada assimetria na distribuição dos retornos médios da atividade agropecuária na região. As UPAs dedicadas à exploração florestal apresentaram o maior retorno por hectare e total na região, mas a bovinocultura mista prevaleceu entre as unidades de produção. Os resultados levantam importantes questões sobre a melhor forma de remuneração dos proprietários em uma política de pagamento por serviços ambientais

Inhibition of Botrytis cinerea and Penicillium roqueforti growth by novel galactomannan edible coatings incorporating natamycin

Fungal pathogens are a major cause of post-harvest spoilage of foods. Botrytis and Penicillium, broad-host-range pathogens, are responsible for substantial economic losses on fruits, vegetables and cheese, causing soft-rotting symptoms. Edible coatings and films can provide an alternative for extending shelf life and improving quality of foods. They can retard surface dehydration, moisture absorption, oxidation of ingredients, aroma loss, ripening/aging, and microbial deterioration of food products. Edible films and coatings may also be used as carriers of functional ingredients such as antimicrobial agents. Recent preliminary works have shown that coatings made of novel galactomannans from Adenanthera pavonina and Gleditsia triacanthos may show potential inhibitory activity over the growth of fungi. This work deals with the determination of the antimicrobial activity of edible films prepared with suspensions of galactomannans from Adenanthera pavonina (1.5 % m/v) containing glycerol (plasticizer) (1.0 % v/v), Gleditsia triacanthos (1.0 % m/v) containing glycerol (2.0 % v/v), both in presence and in the absence of natamycin. Different concentrations of natamycin (0, 5, 10 and 20 µg/mL) were added to the galactomannan coatings to evaluate their efficiency against post-contamination by Penicillium roqueforti and Botrytis cinerea. The effectiveness of the antimicrobial agents (natamycin and/or galactomannans) was evaluated by calculating the total surface contaminated by the fungi over the total surface available for contamination (n = 5). The results obtained showed that natamycin incorporated in galactomannan-based films is active and that the film is a useful barrier to further product contamination. Tukey tests have shown that there are no significant differences between films containing 0 and 5 µg/mL of natamycin but there were significant differences found between 0 and 10 µg/mL, and 0 and 20 µg/mL. During the first 56 hours of growth, an increasing fungal growth rate was observed for decreasing concentrations of natamycin in the coatings.info:eu-repo/semantics/publishedVersio

Quercetin-loaded lecithin/chitosan nanoparticles: physicochemical characterization

Quercetin is an abundant flavonoid in food plants and has been extensively investigated for its pharmacological effects that include anti-tumor, anti-inflammatory, antioxidant, and hepatoprotective activities. Being sparingly soluble in water and subject to degradation in aqueous intestinal fluids, the absorption of quercetin is limited upon oral administration. The aim of this study was to encapsulate quercetin on lecithin/chitosan nanoparticles by auto-assembled technique for improvement its solubility, stability and oral bioavailability. The nanoparticles were obtained injecting a solution of lecithin (2.0 mg.mL-1) and quercetin (70 µg.mL-1) in ethanol (99%) into a chitosan (0.1 mg.mL-1) aqueous solution (pH 3.0), under mechanic stirring. The nanoparticles were characterized by measuring particle size, zeta potential and encapsulation efficiency. The morphology of nanoparticles was evaluated by transmission electron microscopy. Antioxidant activity of nanoparticles and free quercetin was also evaluated using the scavenging of 1,1-diphenyl-2-picrylhydrazyl radical and anti-lipid peroxidation. The nanoparticles showed mean diameter of 168.58±20.94 nm, with polydispersity index of 0.26±0.02, zeta potential of +56.46±1.94 mV, and encapsulation efficiency of 96.13±0.44%. The nanoparticles showed spherical shape and an antioxidant activity more effective than free quercetin. This work demonstrated that the quercetin was successfully encapsulated suggesting that the lecithin/chitosan nanoparticles is a promising delivery system to enhance the oral absorption and water solubility of quercetin.info:eu-repo/semantics/publishedVersio

Caracterização da produção agroecológica do sul do Rio Grande do Sul e sua relação com a mecanização agrícola.

A agricultura agroecológica tem-se destacado como uma das alternativas de renda para os pequenos agricultores devido à crescente busca por parte da população por alimentação mais saudável. No Rio Grande do Sul, a Associação Regional de Produtores Agroecológicos da Região Sul (Arpasul), constituída por 48 famílias, é representativa do processo de produção e de comercialização de produtos agroecológicos, servindo como referencial para o presente estudo. O objetivo principal deste trabalho foi o levantamento das necessidades dos produtores agroecológicos em relação à mecanização agrícola. As informações obtidas foram baseadas no sistema de produção utilizado, sendo caracterizados aspectos referentes à propriedade, às operações agrícolas e às necessidades específicas de máquinas e implementos. Por meio deste estudo, foi evidenciada a carência no atendimento das demandas específicas, na área de máquinas agrícolas para esse segmento, podendo servir como referencial para o desenvolvimento de novas máquinas e/ou aperfeiçoamento das existentes. A semeadora de milho e feijão foi a máquina que a maioria dos agricultores pesquisados indicou como sua maior necessidade