Micro duelo: adaptação do jogo Yu-Gi-Oh para o ensino da Microbiologia / Micro duel: adaptation of the game Yu-Gi-Oh for teaching Microbiology / Micro duelo: adaptación del juego Yu-Gi-Oh para la enseñanza de Microbiología

Objetivo: Relatar a experiência de professores tutores e professores da Educação Básica, participantes do curso EAD Ensino de Ciências para a Promoção de Saúde na Escola Básica, na construção de um material didático-pedagógico para ser utilizado em sala de aula. Método: Para diversificar a rotina de aulas no ensino de Ciências e Biologia, direcionadas para alunos do ensino médio, os professores da Educação Básica que trabalharam os conteúdos do módulo de Saúde e Educação, desenvolveram um jogo de cartas que aborda a microbiologia, inspirado em Yu-Gi-Oh, uma série animada de mangá (histórias japonesas em quadrinhos), onde os jogadores usam cartas para duelar, em uma batalha simulada. Resultados: O material didático descreve os principais conceitos utilizados nojogo (duelo, pontos de vida, tipos de cartas etc.), as fases do duelo e os passos para iniciar o jogo. As cartas foram adaptadas para os assuntos abordados na microbiologia e continham nome do agente, tipo, descrição, atributo em cores, nível de ação em estrelas, número da carta e os pontos de ataque e de defesa. Conclusão: Espera-se estimular a interação e o aprendizado dos estudantes, através da aquisição de habilidades indispensáveis ao desenvolvimento intelectual e facilitação dos conceitos relacionados à microbiologia.

Objective: Report the experience of tutors and Basic Education teachers, participants in the EAD course Teaching Science for Health Promotion in Basic Schools, in the construction of didactic-pedagogical material to be used in the classroom. Method: To diversify the routine of teaching Science and Biology classes, aimed at high school students, the Basic Education teachers who worked on the contents of the Health and Education module, developed a card game that addresses microbiology, inspired by Yu-Gi-Oh, an animated manga series (Japanese comic books), where players use cards to duel in a simulated battle. Results: The teaching material describes the main concepts used in the game (duel, life points, types of cards, etc.), the phases of the duel and the steps to start the game. The cards were adapted to the subjects covered in microbiology and contained the agent's name, type, description, attribute in colors, action level in stars, card number and attack and defense points. Conclusion: It is expected to stimulate student interaction and learning, through the acquisition of skills essential for intellectual development and facilitation of concepts related to microbiology.

Objetivo: Reportar la experiencia de tutores y docentes de Educación Básica, participantes del curso EADEnseñanza de Ciencias para la Promoción de la Salud en Escuelas Básicas, en la construcción de material didáctico-pedagógico para ser utilizado en aula. Método: Para diversificar la rutina de enseñanza de las clases de Ciencias y Biología, dirigidas a estudiantes de secundaria, los docentes de Educación Básica que trabajaron los contenidos Salud y Educación desarrollaron un juego de cartas que aborda la microbiología, inspirado en Yu-Gi-Oh, una serie animada de manga (cómics japoneses), donde los jugadores usan cartas para batirse en duelo en una batalla simulada. Resultados: El material didáctico describe los principales conceptos utilizados en el juego (duelo, puntos de vida, tipos de cartas, etc.), las fases del duelo y los pasos para iniciar el juego. Las tarjetas estaban adaptadas a los temas tratados en microbiología y contenían el nombre del agente, tipo, descripción, atributo en colores, nivel de acción en estrellas, número de tarjeta y puntos de ataque y defensa. Conclusión: Se espera estimular la interacción y el aprendizaje de los estudiantes, a través de la adquisición de habilidades esenciales para el desarrollo intelectual y la facilitación de conceptos relacionados con la microbiología.

Production of Basidiomata and Ligninolytic Enzymes by the Lingzhi or Reishi Medicinal Mushroom, Ganoderma lucidum (Agaricomycetes), in Licuri (Syagrus coronata) Wastes in Brazil.

Ganoderma lucidum is a medicinal mushroom with different forms of bioactivity that has been used in popular medicine for centuries. This study aimed to test the application of agricultural wastes (fruit shells, leaves, and bracts) from the endemic Brazilian palm tree Syagrus coronata (licuri) as substrates for the production of G. lucidum basidiomata and ligninolytic enzymes via solid-state fermentation. The best culture conditions were the same for all substrates (pH 6.5, carbon-to-nitrogen ratio = 40, and temperature 30°C) and were established from preliminary assays. The yield was not significantly different for bracts (33.53 g/kg) and leaves (37.48 g/kg), nor for the biological efficiency in these same substrates: bracts, 3.35%; leaves, 3.75%. The highest laccase (13.80 U/L) and manganese peroxidase (14.92 U/L) activities were achieved after 14 and 28 days of incubation, respectively, using bracts as the substrate. Licuri residues are then potential substrates to be used in the bioconversion process for mycelia, basidiomata, and ligninolytic enzyme production by G. lucidum.

Lytic enzyme production optimization using low-cost substrates and its application in the clarification of xanthan gum culture broth.

Lytic enzymes are widely used in industrial biotechnology as they are able to hydrolyze the bacterial cell wall. One application of these enzymes is the clarification of the culture broth for the production of xanthan gum, because of its viability in viscous media and high specificity. The screening process for filamentous fungi producing lytic enzymes, the optimization of production of these enzymes by the selected microorganism, and the optimization of the application of the enzymes produced in the clarification of culture broth are presented in this article. Eleven fungal isolates were tested for their ability to produce enzymes able to increase the transmittance of the culture broth containing cells of Xanthomonas campestris. To optimize the secretion of lytic enzymes by the selected microorganism the following variables were tested: solid substrate, initial pH, incubation temperature, and addition of inducer (gelatin). Thereafter, secretion of the enzymes over time of incubation was assessed. To optimize the clarification process a central composite rotational design was applied in which the pH of the reaction medium, the dilution of the broth, and the reaction temperature were evaluated. The isolate identified as Aspergillus tamarii was selected for increasing the transmittance of the broth from 2.1% to 54.8%. The best conditions for cultivation of this microorganism were: use of coconut husk as solid substrate, with 90% moisture, at 30°C for 20 days. The lytic enzymes produced thereby were able to increase the transmittance of the culture broth from 2.1% to 70.6% at 65°C, without dilution and without pH adjustment.