Farelo do bagaço de caju na restrição alimentar qualitativa para suínos em terminação

The objective of this study was to evaluate the effects of the use of cashew bagasse bran (CBB) as food ingredient in qualitative feed restriction programs on the carcass traits, meat quality, organs weight and intestinal morphometry of barrows and gilts. Twenty – four crossbred pigs were used (12 barrows and 12 gilts) with an average initial body weight of 57.93 ± 3.67 kg/LW. The experimental designs was in randomized blocks 3x2 factorial arrangement with three level (0%, 15% e 30% CBB), two genders (barrows and gilts) and four repetition. A total of twenty-four instalments. The treatments were composed of basal diet (BD) formulated with corn, soybean meal and commercial base mix for finishing pigs, being containing different levels of CBB. At the end of the trial period the animals were slaughtered for the evaluation of the meat quality, traits carcass, Absolute Weight (AW) and Relative Weight (RW) of the organs and morphometric study of small intestine fragment. The inclusion of (CBB) in the diets did not affect the traits carcass of gilts, but interfered in the traits carcass of the barrow positively, increasing the yield of meat into cold carcass and reducing the thickness of subcutaneous fat, without affecting the fatty acid profile. However, we observed increased weight of organs and partial volume of absortiva mucosa of gilts. In the comparison between sex was observed a greater liver weight (AW) and (RW), and surface density of absortiva mucosa of barrow. The use of CBB was considered as ingredient to be used in programs of qualitative feed restriction for finishing pigs.

Farelo do bagaço de caju na restrição alimentar qualitativa para suínos em terminação

The objective of this study was to evaluate the effects of the use of cashew bagasse bran (CBB) as food ingredient in qualitative feed restriction programs on the carcass traits, meat quality, organs weight and intestinal morphometry of barrows and gilts. Twenty – four crossbred pigs were used (12 barrows and 12 gilts) with an average initial body weight of 57.93 ± 3.67 kg/LW. The experimental designs was in randomized blocks 3x2 factorial arrangement with three level (0%, 15% e 30% CBB), two genders (barrows and gilts) and four repetition. A total of twenty-four instalments. The treatments were composed of basal diet (BD) formulated with corn, soybean meal and commercial base mix for finishing pigs, being containing different levels of CBB. At the end of the trial period the animals were slaughtered for the evaluation of the meat quality, traits carcass, Absolute Weight (AW) and Relative Weight (RW) of the organs and morphometric study of small intestine fragment. The inclusion of (CBB) in the diets did not affect the traits carcass of gilts, but interfered in the traits carcass of the barrow positively, increasing the yield of meat into cold carcass and reducing the thickness of subcutaneous fat, without affecting the fatty acid profile. However, we observed increased weight of organs and partial volume of absortiva mucosa of gilts. In the comparison between sex was observed a greater liver weight (AW) and (RW), and surface density of absortiva mucosa of barrow. The use of CBB was considered as ingredient to be used in programs of qualitative feed restriction for finishing pigs.

Caracterização do material particulado e avaliação do risco ocupacional e mecanismos moleculares associados à queima artesanal da castanha de caju

Brazil is among the largest cashew nut producers of the world. However, the roasting process is still carried out artisanally, especially in the Brazilian semiarid region. In face of this occupational problem, the aim of this study was to perform a physical-chemical characterization of the particulate matter (PM) emitted by the roasting of cashew nuts, as well as to determine the occupational risk and molecular mechanisms associated. The most evident PM characteristics were the prevalence of fine particles, typical biomass burning morphologies such as tar ball and the presence of the elements K, Cl, S, Ca and Fe. In addition, atmospheric modeling analyses suggest that these particles can reach neighboring regions of the emission source. Polycyclic aromatic hydrocarbons (PAHs) with carcinogenic potential, such as benzo[a]pyrene, dibenz[a,h]anthracene, benzo[a]anthracene, benzo[b]fluoranthene, chrysene, benzo[k]fluoranthene, indeno[1,2,3-c,d]pyrene and benzo[j]fluoranthene were the most abundant PAHs found in the two air monitoring campaigns. Among the identified oxy-PAH the benzanthrone (7H-benz[d,e]anthracen-7-one) had the highest concentration and the evaluation of lifetime cancer risk showed an increase of 12 to 37 cases of cancer for every 10,000 exposed people. Chemical analysis of roasted cashew nuts identified the PAHs: phenanthrene, benzo[g,h,i]perylene, pyrene and benzo[a]pyrene, besides the 3-pentadecilfenol allergen (urushiol analogue) as prevalent. Occupational exposure to PAHs was confirmed by the increase of urinary 1-hydroxypyrene levels and genotoxic effects were evidenced by the increase on micronuclei and nuclear bud frequency in exfoliated buccal mucosa cells among the exposed workers. Other biomarkers of effects such as karyorrhexis, pyknotic, karyolytic, condensed chromatin and binucleated cells also have their frequencies increased when compared to an unexposed control group. The investigation of the molecular mechanisms associated with the PM organic extract showed cytotoxicity in human lung cell lines (A549) at concentrations ≥ 4 nM BaPeq. Using non-cytotoxic doses the extract was able to activate proteins involved in the DNA damage response pathway (Chk1 and p53). Moreover, the specific contribution of the four most representative PAHs in the cashew nut roasting sample showed that benzo[a]pyrene was the most efficient to activate Chk1 and p53. Finally, the organic extract was able to increase persistently the mRNA expression involved in the PAHs metabolism (CYP1A1 and CYP1B1), inflammatory response (IL-8 and TNF-α) and cell cycle arrest (CDKN1A) for DNA repair (DDB2). The high PM concentrations and its biological effects associated warn of the serious harmful effects of artisanal cashew nut roasting and urgent actions should be taken to the sustainable development of this activity.

Caracterização do material particulado e avaliação do risco ocupacional e mecanismos moleculares associados à queima artesanal da castanha de caju

Brazil is among the largest cashew nut producers of the world. However, the roasting process is still carried out artisanally, especially in the Brazilian semiarid region. In face of this occupational problem, the aim of this study was to perform a physical-chemical characterization of the particulate matter (PM) emitted by the roasting of cashew nuts, as well as to determine the occupational risk and molecular mechanisms associated. The most evident PM characteristics were the prevalence of fine particles, typical biomass burning morphologies such as tar ball and the presence of the elements K, Cl, S, Ca and Fe. In addition, atmospheric modeling analyses suggest that these particles can reach neighboring regions of the emission source. Polycyclic aromatic hydrocarbons (PAHs) with carcinogenic potential, such as benzo[a]pyrene, dibenz[a,h]anthracene, benzo[a]anthracene, benzo[b]fluoranthene, chrysene, benzo[k]fluoranthene, indeno[1,2,3-c,d]pyrene and benzo[j]fluoranthene were the most abundant PAHs found in the two air monitoring campaigns. Among the identified oxy-PAH the benzanthrone (7H-benz[d,e]anthracen-7-one) had the highest concentration and the evaluation of lifetime cancer risk showed an increase of 12 to 37 cases of cancer for every 10,000 exposed people. Chemical analysis of roasted cashew nuts identified the PAHs: phenanthrene, benzo[g,h,i]perylene, pyrene and benzo[a]pyrene, besides the 3-pentadecilfenol allergen (urushiol analogue) as prevalent. Occupational exposure to PAHs was confirmed by the increase of urinary 1-hydroxypyrene levels and genotoxic effects were evidenced by the increase on micronuclei and nuclear bud frequency in exfoliated buccal mucosa cells among the exposed workers. Other biomarkers of effects such as karyorrhexis, pyknotic, karyolytic, condensed chromatin and binucleated cells also have their frequencies increased when compared to an unexposed control group. The investigation of the molecular mechanisms associated with the PM organic extract showed cytotoxicity in human lung cell lines (A549) at concentrations ≥ 4 nM BaPeq. Using non-cytotoxic doses the extract was able to activate proteins involved in the DNA damage response pathway (Chk1 and p53). Moreover, the specific contribution of the four most representative PAHs in the cashew nut roasting sample showed that benzo[a]pyrene was the most efficient to activate Chk1 and p53. Finally, the organic extract was able to increase persistently the mRNA expression involved in the PAHs metabolism (CYP1A1 and CYP1B1), inflammatory response (IL-8 and TNF-α) and cell cycle arrest (CDKN1A) for DNA repair (DDB2). The high PM concentrations and its biological effects associated warn of the serious harmful effects of artisanal cashew nut roasting and urgent actions should be taken to the sustainable development of this activity.

Análises estruturais e atividades biológicas de exopolissacarídeo extraído do fungo comestível pleurotus Sajor-Caju e de seu derivado sulfatado quimicamente.

The exopolysaccharides are extracellular compounds produced by some species of fungi and bacteria. It is suggested that these molecules, even when in the form of complex polysaccharide-peptide, are the main bioactive molecules of many fungus. Some of the biological activities displayed by these compounds can be accentuated and others may arise when you add chemically polar or nonpolar groups to polysaccharides. The fruiting body of Pleurotus sajor-caju produces a heteropolysaccharide with antineoplastic and antimicrobial activity, but other biological activities of this polymer have not been evaluated. In this work the exopolysaccharide of Pleurotus sajor-caju was sulfated chemically and structurally characterized. We also evaluated the antiproliferative, antioxidant and anticoagulant activities from native exopolysaccharide (PN) and its sulfated derivated (PS). Polyacrylamide gel electrophoresis, infrared spectroscopy and nuclear magnetic resonance (¹³C) proved successful in sulfation of PN to obtain PS. Analysis by gas chromatography-mass spectroscopy showed that PN and PS are composed of mannose, galactose, 3-O-methyl-galactose and glucose in proportion percentage of 44,9:16,3:19,8:19 and 49, 7:14,4:17,7:18,2, respectively. The percentage of sulfate found in PS was 22.5%. Antioxidants assays revealed that the sulfation procedure affects differently the activities of exopolysaccharides, while the total antioxidant capacity, the scavenging activity of superoxide radical and ferric chelating were not affected by sulfation, on the other hand the chemical modification of PN enhanced the scavenging activity of hydroxyl radical and reducing power. PS also showed anticoagulant activity in a dose-dependent manner and clotting time was 3.0 times higher than the baseline value in APTT at 2 mg/mL. The exopolysaccharide not presented antiproliferative activity against HeLa tumor cells, but PS affects the cellular proliferation in a time-dependent manner. After 72 h, the inhibition rate of PS (2.0 mg/mL) on HeLa cells was about 60%. The results showed that PN sulfation increase some of their activities.

Avaliação do potencial genotóxico e citotóxico associado a queima artesanal da castanha de caju no Município de João Câmara

The Brazil is the third largest producer of cashew nuts in the world. Despite the social and economic importance of the cashew nut, its production is still carried out artisanally. One of the main problems encountered in the cashew production chain are the conditions under which the roasting of the nut occurs to obtain the kernel from the shell. In the present study was conducted a biomonitoring of the genotoxic and cytotoxicity effects associated with the elements from the cashew nut roasting in João Câmara - RN, semi-arid region of Brazil. To assess the genotoxic was used the bioassay of micronucleus (MN) in Tradescantia pallida. In addition, it was performed a comparative between the Tradescantia pallida and KU-20 and other biomarkers of DNA damage, such as the nucleoplasmic bridges (NBP) and nuclear fragments (NF) were quantified. The levels of particulate matter (PM1.0, PM2.5, PM10) and black carbon (BC) were also measured and the inorganic chemical composition of the PM2.5 collected was determined using X-ray fluorescence spectrometry analysis and the assessment of the cytotoxicity by MTT assay and exclusion method by trypan blue. . For this purpose, were chosen: the Amarelão community where the roasting occurs and the Santa Luzia farm an area without influence of this process. The mean value of PM2.5 (Jan 2124.2 μg/m3; May 1022.2 μg/m3; Sep 1291.9 μg/m3) and BC (Jan 363.6 μg/m3; May 70.0 μg/m3; Sep 69.4 μg/m3) as well as the concentration of the elements Al, Si, P, S, Cl, K, Ca, Ti, Cr, Mn, Fe, Ni, Cu, Zn, Se, Br and Pb obtained at Amarelão was significantly higher than at Santa Luzia farm. The genotoxicity tests with T. pallida indicated a significant increase in the number of MN, NBP and NF and it was found a negative correlation between the frequency of these biomarkers and the rainfall. The concentrations of 200 μg/mL and 400 μg/mL of PM2.5 were cytotoxic to MRC-5 cells. All together, the results indicated genotoxicity and citotoxicity for the community of Amarelão, and the high rates of PM2.5 considered a potential contributor to this effect, mainly by the high presence of transition metals, especially Fe, Ni, Cu, Cr and Zn, these elements have the potential to cause DNA damage. Other nuclear alterations, such as the NPBs and NFs may be used as effective biomarkers of DNA damage in tetrads of Tradescantia pallida. The results of this study enabled the identification of a serious occupational problem. Accordingly, preventative measures and better practices should be adopted to improve both the activity and the quality of life of the population. These measures are of fundamental importance for the sustainable development of this activity.

Relato de caso: Caracterização físico-química e aceitabilidade de paçoca produzida com amêndoa de castanha-de-caju e sua comparação com produtos comerciais.

2015

Efeitos da secagem na qualidade fisiológica de sementes de cajuí (Anacardium giganteum W. Hancock ex Engl.).

Anacardium giganteum, conhecida como cajuí, é uma espécie nativa da Amazônia, que vem sendo explorada pelo setor madeireiro do Estado do Pará. O objetivo do trabalho foi avaliar o efeito da secagem sobre a qualidade fisiológica de sementes de cajuí. Foi determinado o teor de água das sementes e sua viabilidade através do teste de germinação. Foram quantificados o número de dias para iniciar a emergência, o índice de velocidade de emergência, emergência, germinação, plântulas anormais e sementes mortas. O delineamento experimental foi inteiramente casualizado, com três tratamentos (teores de água de 35,6%, 21,4% e 16,6%) e quatro repetições de 25 sementes cada. Não houve diferença significativa na germinação das sementes com 35,6 e 21,4% de água, as quais apresentaram 89% e 77% de germinação, respectivamente. Entretanto, sementes com 16,6% de água, apresentaram redução na porcentagem de germinação (65%) e aumento na porcentagem de sementes mortas (33%). Sementes de A. giganteum são sensíveis a secagem e podem ser classificadas como intermediárias no armazenamento.

Evaluation of Waterhyacinth and Paddy Straw Waste for Culture of Oyster Mushrooms

Waterhyacinth ( Eichhornia crassipes (Mart.) Solms.) was evaluated at ratios of 25, 50 and 75% with paddy straw ( Oryza sativa L.) for oyster mushroom ( Pleurotus sajor-caju) cultivation. There was an increase in yield with decreasing ratio waterhyacinth.

Evaluation of Water hyacinth and Paddy Straw Waste for Culture of Oyster Mushrooms

Waterhyacinth ( Eichhornia crassipes (Mart.) Solms.) was evaluated at ratios of 25, 50 and 75% with paddy straw ( Oryza sativa L.) for oyster mushroom ( Pleurotus sajor-caju) cultivation. There was an increase in yield with decreasing ratio waterhyacinth.

Avaliação de clones de cajueiro anão precoce em Rio Branco-Acre.

Entre os maiores entraves para a exploração racional da cultura do caju no Estado do Acre, destacam-se os problemas fitossanitários, principalmente a Antracnose, causada pelo fungo Colletotrichum gloesporioides, que encontra na região, condições climáticas favoráveis (altas temperaturas e alta umidade), causando perdas consideráveis na produção e na qualidade da castanha e do pedúnculo. Na população de ocorrência espontânea no Estado, observa-se plantas com diferentes graus de tolerância à doença, principalmente no município de Xapuri, entretanto, estes materiais apresentam características desfavoráveis para o cultivo econômico. A introdução, avaliação e seleção de materiais com características superiores como baixo porte e precocidade na produção, é de primordial importância para o desenvolvimento de uma cajuicultura moderna. Por estas razões, em janeiro de 1996, foi implantada uma coleção de trabalho no Centro de Pesquisa Agroflorestal do Acre - CPAF/AC, com o objetivo de avaliar quatro clones de cajueiro anão precoce, oriundos do Centro Nacional de Agroindústria Tropical.

Soluções tecnológicas e inovação 2015.

Pesquisa e inovação agropecuária para o fortalecimento da Agricultura Familiar; Tecnologias de baixo custo evitam desperdício de água; Agricultores viram produtores de água no Distrito Federal; Agricultura de Precisão pode reduzir uso de água nas culturas; Cultivo de alimentos nas entrelinhas viabiliza dendê na agricultura familiar; Pesquisa vai mapear castanhais nativos e caracterizar sistemas de produção da castanha-do-brasil; Projetos apoiam agricultores familiares em 45 municípios no Amazonas; Agricultura sustentável ultrapassa fronteiras amazônicas; Troca de saberes fortalece agricultura indígena; Quilombo Brotas implanta Unidade de Referência Agroecológica; Agricultores fazem manejo florestal participativo da araucária; Árvores trazem benefícios para a lavoura em assentamento no RJ; Sistema silvipastoril muda realidade em condomínio de famílias no Paraná; Sistemas agroflorestais proporcionam desenvolvimento e equilíbrio no meio rural; Sistema de cultivo de frutas, grãos e hortaliças é adotado no Cerrado; Material genético da Embrapa garante diversidade de fruteiras para o Brasil; Pesquisa testa fruticultura orgânica em larga escala; Produção de acerola muda realidade de agricultores; Técnica aumenta produção do açaí em até cinco vezes; Agricultores gaúchos aprovam variedade de bananeira; Caju lançado pela Embrapa produz mesmo em tempos de seca; Frutas nativas diversificam agricultura familiar do Sul; Híbridos de maracujazeiro azedo para geração de emprego e renda no campo; Maracujazeiro silvestre oferece quatro vantagens para o agricultor familiar; Plantio de morango orgânico mostra-se vantajoso em Sergipe; Pera, maçã e caqui: novos nichos da fruticultura no Nordeste; Sistema Agritempo ajuda a monitorar a plantação; Sistema online auxilia monitoramento da agricultura; Alimentos biofortificados são produzidos na Borda Oeste do Pantanal; Café conilon BRS Ouro Preto pode impulsionar competitividade da cafeicultura na Amazônia; Manejo integrado de pragas também é importante para o trigo; Controle biológico de pragas reduz uso de agrotóxicos; Conhecimento ajuda a mudar produção de hortaliças no Pará; Sistema integrado de produção de mudas de hortaliças beneficia agricultores no RJ; Projeto viabiliza mercado para produtos da agricultura familiar no interior de Minas Gerais; Minibibliotecas: a pesquisa mais perto do homem do campo; Sistemas de acesso aberto oferecem informações agropecuárias para diversos públicos; Parceria com rede de radialistas garante Prosa Rural no ar há mais de uma década; Prosa Rural apoia ações de transferência de tecnologia no Alto Sertão Sergipano; Conhecimento das Minibibliotecas chega a jovens agricultores de Rondônia; Transferência de tecnologias agrícolas nas Escolas Famílias Rurais do Amapá; Mandioca ajuda a diminuir pobreza no campo; Maniveiro, uma nova figura na cadeia produtiva da mandioca; Projeto agrega valor à produção de mandioca e aumenta renda no Maranhão; Inovações de baixo custo facilitam a vida do horticultor familiar; Novo equipamento vai facilitar trabalho de produtores de bananas; Estratégias participativas ajudam no desenvolvimento de comunidades rurais; Transição agroecológica na agricultura familiar da Amazônia; Partilha dos saberes agroecológicos em territórios sergipanos; Assentados adotam sistema agroflorestal no interior de SP; Técnicas sustentáveis são compartilhadas na Fazendinha Agroecológica; Ciência se alia ao conhecimento dos agricultores no norte de Minas; Programa busca expandir mercado para vitivinicultura de polos tradicionais; Do campus ao campo: pesquisadores para a agricultura familiar; Queijo coalho de qualidade oferece alternativa rentável para agricultores; Sustentabilidade dos vinhos artesanais une modernidade e tradição; Plano de inovação promove gestão participativa e dinamiza agricultura familiar; Instituições se articulam pela solução dos problemas da agricultura familiar em Goiás; Capacitação melhora bovinocultura leiteira no Tocantins; Adoção de tecnologias por pequenos produtores melhora produção leiteira; A Rede Leite no noroeste gaúcho: em busca da sustentabilidade da produção; Pesquisa participativa busca perspectivas para produção orgânica de leite em unidades familiares; Mel pantaneiro; Retratos da vitória na produção de mel; Apicultores dedicados conseguem regularidade na produção de mel; Software orienta produtores de ovinos no controle de verminose; Projeto Alto Camaquã agrega valor aos produtores e ao ambiente; Projetos incentivam maior produção de peixe no Tocantins; Tecnologias em suínos para produtores que apostam em diferenciação; Avaliação de condição do rebanho ganha tecnologia simples e precisa; Tecnologia permite usar água com alto teor de sal; Algodão em consórcios agroecológicos beneficia 400 famílias no Semiárido; Unidades de Aprendizagem Familiar aumentam produção de animais no Ceará; Barragem subterrânea e cisterna calçadão mudam vidas de famílias do Semiárido; Cisternas garantem água para o Semiárido; Agricultores melhoram estrutura de produção em áreas de fruteiras e hortaliças; Famílias encontram alternativas para aumentar produtividade de grãos e frutas; Quintais produtivos ampliam renda de agricultores; Sisteminha Embrapa leva segurança alimentar para famílias de Parnaíba (PI); Pesquisas na região Serrana do Rio de Janeiro propiciam geração de tecnologias; Projeto apoia produtos tradicionais da agricultura familiar nos estados da Bahia, Minas Gerais e Rio de Janeiro.

Variation and trends in incidence of childhood diabetes in Europe

Background To study the epidemiology of childhood-onset type 1 insulin-dependent diabetes in Europe, the EURODIAB collaborative group established in 1988 prospective geographically-defined registers of new cases diagnosed under 15 years of age. This report is based on 16 362 cases registered during the period 1989-94 by 44 centres representing most European countries and Israel and covering a population of about 28 million children.

Brazilian savanna forest : conservation, medicinal reservoir and bioprospecting

This study aimed to analyse the Brazilian savanna forest from a Legal Reserve (LR) area from a perspective of conservation, reservoir of organic carbon and medicinal biomass for a prospective use of native medicinal plants. An ethnobotanical and ethnopharmacological survey was carried out close to a community settled in the rural area in the south of Tocantins, being selected 9 of the most cited species (cajuí- Anacardium othonianum; inharé-Brosimum gaudichaudii; jatobá-Hymenaeae courbaril; jenipapo-Genipa americana, aroeira-Myracrodruon urundeuva; negramina-Siparuna guianensis; barbatimão- Stryphnodendron obovatum; assa peixe-Vernonia brasiliana, embaúba-Cecropia pachystachya). Crude foliar extracts were subjected to a preliminary phytochemical prospection and triage of secondary metabolites with antimicrobial activity of potential interest in health and familiar agriculture. Phenolic compounds, terpenes and flavonoids were detected in the extracts of most species, which suggests the presence of antimicrobial, antioxidant and anti-insect activities. It was evident the need to better know the LR as a reservoir of medicinal biomass in an area under ecological tension where 35% (610ha) of the property is LR and should be protected by law. Therefore, a forest inventory of live woody species was performed using the allometric or indirect method. This identified a rare remnant of Semidecidual Seasonal Forest amidst the largest world savannah, the Cerrado biome. An analysis of the forest average productivity per basal area (m².ha), aerial live biomass (ton.ha-1) and carbon stock was carried out. The forest fragment was considered relatively rich in species and diversity, although showing signs of disturbance and dominance by a few species. Its horizontal structure suggests biotic regeneration conditions. It is an important reservoir of medicinal plants. Of the families (57.5%) presenting medicinal species, 19 from a total of 33 are represented in the area and contain 44% (27) of the total species (61) and 63% (432) of the total individuals catalogued. Medicinal species have ecological importance for the equilibrium of the local flora and represent 80% of the 10 species with higher Importance Value Index (IVI): Tetragastris altissima, Chrysophyllum marginatum, Oenocarpus distichus, Sclerolobium paniculatum, Simarouba versicolor, Alibertia macrophylla, Siparuna guianensis, Maprounea guianensis, Licania parvifolia e Physocalymma scaberrimum. Medicinal productivity was high for this type of phytophysionomy: 183,2 ton. ha-1 of biomass and 91,51 ton. ha-1 of carbon representing 66% of the total biomass and carbon of this Cerrado forest. From this stage S. guianensis (Siparunaceae) was selected for performing bioassays in order to verify its biological activity against microorganisms of health and agricultural relevance. This is a native aromatic medicinal plant recommended as priority for conservation, with local popular medicinal validation and availability of medicinal feedstock (3300 Kg.ha-1), with the foliar fraction giving 38Kg/ha of crude extract and 5L/ha of essential oil. Foliar crude extracts and essential oil were obtained and tested in vitro using a disk diffusion bioassay. Different concentrations of these natural products were tested against gram-positive bacteria (Staphylococcus aureus ATCC 29213), gram-negative bacteria (Escherichia coli ATCC 25922 and ATCC 35218; Pseudomonas aeruginosa ATCC 10145) and fungi (Candida albicans ATCC 6258 e Fusarium oxysporum). The essential oil inhibited the growth of S. aureus in its crude concentration (380μg.mL-1), as well as diluted to half (190μg.mL-1) and a quarter strength (95μg.mL-1). It’s likely that such action is due to sesquiterpenes major components, such as bisabolol and bisabolene (10.35%), measured by gas chromatography (GC-MS, GC-FID). Extracts did not exhibit any antimicrobial activity against the microorganisms tested. The native medicinal plants prospective market is an alternative that favours the conservation of biodiversity while generating benefits for the development of sustainable family productive activities within local ecosystems instead of the current inappropriate uses. This strengthens conservation policies of Legal Reserve in rural settlements and is in agreement with public policy on global warming and climate changes.