Extrativismo e desenvolvimento no contexto da Amazônia brasileira

Wagner, Danielle; Claudino, Livio Sergio Dias; Oliveira, Carlos Douglas de Sousa; Matei, Ana Paula; Kubo, Rumi Regina

doi:10.5380/dma.v38i0.44455

Cited by 8 publications

(7 citation statements)

References 3 publications

(7 reference statements)

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“…A s discussões acerca do uso e da gestão dos recursos naturais, sobretudo tendo a Amazônia como pano de fundo, têm sido cada vez mais recorrentes nas duas últimas décadas (Silva, et al, 2016;Ferreira, 2019) e configuram-se como importantes estratégias para a gestão das florestas e para o desenvolvimento de políticas públicas voltadas às cadeias produtivas de produtos florestais não madeireiros, os PFNMs (IPEA, 2016).…”

Section: Introductionunclassified

Sociobiodiversidade e alimentação em uma comunidade ribeirinha da Reserva Extrativista Tapajós-Arapiuns, Baixo Amazonas

Freitas¹,

Novaıs

Wagner

et al. 2022

Mundo Amazon.

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O Brasil é conhecido mundialmente pela rica biodiversidade e pluralidade de povos tradicionais que utilizam produtos florestais não madeireiros (PFNM) para fins alimentícios, medicinais, infraestrutura de casas e como fonte de renda extra. Diversos estudos sobre sociobiodiversidade e PFNM têm sido realizados, principalmente sobre inclusão produtiva e formação de mercados para valoração econômica da floresta em pé, o que invisibiliza a importância desses produtos para a organização social e econômica das comunidades e populações tradicionais, principalmente no que se refere à alimentação. Diante disso, o objetivo deste trabalho foi analisar o consumo alimentar das famílias em uma comunidade ribeirinha amazônica, a fim de identificar a presença dos produtos da sociobiodiversidade nos hábitos alimentares locais. A coleta de dados foi feita por meio de observação direta e de entrevistas realizadas com 15% das famílias moradoras da comunidade Surucuá, na Reserva Extrativista Tapajós–Arapiuns. Foram contabilizadas 63 espécies da biodiversidade local que fazem parte da alimentação das famílias, das quais 24 não são reconhecidas na lista brasileira oficial de produtos da sociobiodiversidade. Mediante estudos de viabilidade, essas espécies podem ser incluídas na referida lista e, assim, subsidiar a formação de novas cadeias produtivas. Além disso, os resultados mostram que a relação das famílias com a floresta e com os quintais evidencia a sociobiodiversidade como elemento do sistema socioecológico e o extrativismo vegetal como atividade significativa na configuração da comunidade e na reprodução social.

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Section: Introductionunclassified

Sociobiodiversidade e alimentação em uma comunidade ribeirinha da Reserva Extrativista Tapajós-Arapiuns, Baixo Amazonas

Freitas¹,

Novaıs

Wagner

et al. 2022

Mundo Amazon.

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“…The extraction of non-timber forest products (NTFP) is a fundamental means of subsistence for traditional populations of the Amazon (Silva et al, 2016). In addition, these products contribute to forest conservation, provide medicines, shelter, and food, and have great relevance to the local economy and culture (Homma, 2014).…”

Section: Introductionmentioning

confidence: 99%

Soil classes and properties explain the occurrence and fruit production of Brazil nut

Silva¹,

Silva²,

Wadt³

et al. 2021

Revista Brasileira De Ciência Do Solo

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Soil properties and classes can influence the occurrence of plants and the production of Brazil nut fruits and may have a different distribution between sites. This study aimed to evaluate the relationship of plants' occurrence, production of Brazil nut fruits, and spatial variability of the properties in different soil classes in two Brazil nut stand in the state of Acre, Brazil. The study was conducted in two plots in two native Brazil nut stand, Cachoeira (CP01 and CP02 -plots 1 and 2) and Filipinas (FP01 and FP02 -plots 1 and 2). The soil profiles were described morphologically. Sixty soil samples were collected in each plot. The chemical properties, granulometry, soil density, particle density, and estimated total porosity were determined. The average fruit production was calculated by counting the fruits in a sample of Brazil nut trees. Subsequently, the trees were divided into three classes of production: low (≤1.5 can; the can unit has 18-L, which is able to hold 59 and 77 fruits, respectively, for Cachoeira and Filipinas), medium (1.6 to 3.9 cans), and high (≥4.0 cans). The can unit is the traditional measure of volume in the region and varies according to the locality. Cluster analysis was performed to determine whether there was a difference between Brazil nut stands and soil profiles, and geostatistics was used to evaluate the spatial dependence of soil properties. The highest occurrence of Brazil nut trees with high fruit production (≥4.0 cans) was found in the Latossolo Vermelho Distrófico argissólico (Oxisol) and Argissolo Vermelho-Amarelo Distrófico típico (Ultisol). However, the Argisol also hosted the plants with the lowest productions (≤1.5 can). The pH, total organic carbon, sum of bases, P, N, granulometry, and porosity showed a greater spatial variability, and FP02 showed a greater number of properties with high spatial variability compared to the other areas. Although the occurrence of plants and the production of Brazil nut fruits (Bertholletia excelsa) were associated with the classes and the physical and chemical properties of the soil, pyxidium production differed between areas. In general, soil physical properties were limiting factors for Brazil nut production and/or higher tree occurrence. Filipinas environment showed a low fruit production and a greater spatial variability of soil properties compared to Cachoeira.

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“…Leishmaniasis is classified as neglected disease, and the treatment recommended by the World Health Organization still has many side effects, making patient adherence difficult and contributing to increased cases of resistance to several strains of Leishmania . For this reason, new therapeutic alternatives have been sought, including the use of natural products [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Carapa guianensis Aublet (Andiroba) Seed Oil: Chemical Composition and Antileishmanial Activity of Limonoid-Rich Fractions

Oliveira

Tellis

Chagas

et al. 2018

BioMed Research International

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Leishmaniasis is a complex of diseases caused by protozoa of the genus Leishmania and affects millions of people around the world. Several species of plants are used by traditional communities for the treatment of this disease, among which is Carapa guianensis Aubl. (Meliaceae), popularly known as andiroba. The objective of the present work was to conduct a chemical study of C. guianensis seed oil and its limonoid-rich fractions, with the aim of identifying its secondary metabolites, particularly the limonoids, in addition to investigating its anti-Leishmania potential. The chemical analyses of the C. guianensis seed oil and fractions were obtained by electrospray ionization mass spectrometry (ESI-MS). The cytotoxic activity was tested against peritoneal macrophages, and antileishmanial activity was evaluated against promastigotes and intracellular amastigotes of Leishmania amazonensis. All the C. guianensis seed oil samples analyzed exhibited the same pattern of fatty acids, while the limonoids 7-deacetoxy-7-hydroxygedunin, deacetyldihydrogedunin, deoxygedunin, andirobin, gedunin, 11β-hydroxygedunin, 17-glycolyldeoxygedunin, 6α-acetoxygedunin, and 6α,11β-diacetoxygedunin were identified in the limonoid-rich fractions of the oil. The C. guianensis seed oil did not exhibit antileishmanial activity, and cytotoxicity was higher than 1000 μg/mL. Three limonoid-rich oil fractions demonstrated activity against promastigotes (IC50 of 10.53±0.050, 25.3±0.057, and 56.9±0.043μg/mL) and intracellular amastigotes (IC50 of 27.31±0.091, 78.42±0.086, and 352.2±0.145 μg/mL) of L. amazonensis, as well as cytotoxicity against peritoneal macrophages (CC50 of 78.55±1.406, 139.0±1.523, and 607.7±1.217 μg/mL). The anti-Leishmania activity of the limonoid-rich fractions of C. guianensis can be attributed to the limonoids 11β-hydroxygedunin and 6α,11β-diacetoxygedunin detected in the chemical analysis.

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Extrativismo e desenvolvimento no contexto da Amazônia brasileira

Cited by 8 publications

References 3 publications

Sociobiodiversidade e alimentação em uma comunidade ribeirinha da Reserva Extrativista Tapajós-Arapiuns, Baixo Amazonas

Sociobiodiversidade e alimentação em uma comunidade ribeirinha da Reserva Extrativista Tapajós-Arapiuns, Baixo Amazonas

Soil classes and properties explain the occurrence and fruit production of Brazil nut

Carapa guianensis Aublet (Andiroba) Seed Oil: Chemical Composition and Antileishmanial Activity of Limonoid-Rich Fractions

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