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Alternative flours from pulp melons (Cucumis melo L.): Seasonality influence on physical, chemical, technological parameters, and utilization in bakery product
(Heliyon, 2024-05-15) Passos, Thaís Souza; Medeiros, Luciana Daniela Gurgel de; Carvalho, Leticya Bianca Almeida de; Freitas, Erika Paula Silva; Porto, Dayanne Lopes; Aragão, Cícero Flávio Soares; Sousa Júnior, Francisco Canindé de; Damasceno, Karla Suzanne Florentino da Silva Chaves; Assis, Cristiane Fernandes de; Morais, Ana Heloneida Araújo; https://orcid.org/0000-0003-2054-1544; https://orcid.org/0000-0002-3434-2602; https://orcid.org/0000-0003-2042-4348; https://orcid.org/0000-0001-6884-1023; https://orcid.org/0000-0001-7595-5395
Fresh vegetables have high water content and low acidity, so drying can extend shelf life, allowing the obtaining of alternative flours for the development of new products. The study aimed to investigate the influence of the melon harvest and off-season on the chemical composition of melon (Cantaloupe, Charentais e Honey Dew) flours and the potential application in products. The flours were evaluated for granulometry, morphology, centesimal composition, lipid and mineral content, total phenolic compound (TPC), antioxidant activity, and technological properties. Cakes containing melon flour were produced to replace wheat flour (0, 25, and 50 %) and evaluated for proximate composition, microbiology, and sensory parameters. Flours were classified as fine-grained (MESH >16), except Charentais off-season (medium - MESH 8–16, and finegrained - MESH >16), and all presented a rough surface and minimal cell wall ruptures. The harvest homogeneously influenced the humidity, as all the off-season flours showed higher levels [17–22 %] (p < 0.05) due to weather conditions. For TPC, Cantaloupe melon flours from the harvest (CFH) [208 mg/100 g] and off-season [877 mg/100 g] stood out (p < 0.05), and the latter showed greater antioxidant potential [328 μmol TE/g]. Palmitic, linoleic, and linolenic acid stood out in all flours, and potassium for minerals (63–78 %) in the harvest and off-season. The harvest and off-season specifically influenced the flour of each variety in swelling power, water solubility, oil absorption, and emulsifying capacity. For cakes with CFH, no thermotolerant coliforms and Escherichia coli were detected, and the mesophilic count was <1.0 CFU/g. The ash, protein, lipid, and fiber contents increased proportionally to melon flour addition (p < 0.05). Sensory acceptance was high for cakes containing 25 and 50 % of CFH [82.78 % and 82.53 %], and most consumers would likely buy the products (4.04 and 3.99) (p < 0.05). The study contributed to knowledge about the seasonality effect and demonstrated the potential use of melon flour in developing new products
Analysis of advertisements of infant food commercialized in the city of Natal, Rio Grande do Norte, Brazil
(Universidade de São Paulo (Faculdade de Ciências Farmacêuticas), 2009-06) Pagnoncelli, Maria Giovana Binder; Batista, Almária Mariz; Silva, Michelle Cristine Medeiros da; Costa, Ana Paula Marques da; Araújo, Fábio Resende de; Marques, Marcela Pinheiro; Fidalgo, Cláudia Margareth de Quelhas; Carvalho, Maria Cleide Ribeiro Dantas de Carvalho
A propaganda de substitutos do leite materno tem sido apontada como um dos fatores responsáveis pelos baixos índices da amamentação. Neste sentido, dispositivos legais foram criados para assegurar o uso desses produtos, sem que haja interferência no aleitamento materno. Este estudo objetivou analisar propagandas de alimentos abrangidos pela Lei nº 11.265/2006, que regulamenta a comercialização e publicidade de alimentos para lactentes e crianças de primeira infância no Brasil, no período de junho 2006 a maio de 2008, na cidade de Natal/RN. Foram coletadas 220 propagandas, sendo 141 de material técnico-científico e 79 de promoção comercial que foram avaliadas quanto às exigências legais. O resultado desta análise demonstrou que 100% das propagandas veiculadas em material técnico-científico infringiram o inciso V; 18,4% o inciso IV e 14,2% os incisos I, II e III do artigo 19 da Lei nº 11.265/2006. Em 42% das promoções comerciais não foram veiculadas as informações obrigatórias constantes dos incisos I e II do artigo 5º. Em 8,7% das que continham essas informações, estas estavam postas em local que dificultava sua identificação e leitura devido ao tamanho e cor das letras, semelhantemente ao ocorrido com as informações exigidas pelo artigo 19 nas propagandas veiculadas em material técnico-científico
Aqueous leaf extract of Jatropha gossypiifolia L. (Euphorbiaceae) inhibits enzymatic and biological actions of Bothrops jararaca snake venom
(Public Library of Science, 2014-08-15) Félix-Silva, Juliana; Souza, Thiago; Menezes, Yamara A. S.; Cabral, Bárbara; Câmara, Rafael Barros Gomes da; Silva-Junior, Arnóbio Antonio da; Rocha, Hugo Alexandre de Oliveira; Rebecchi, Ivanise Marina Moretti; Langassner, Silvana Maria Zucolotto; Fernandes-Pedrosa, Matheus de Freitas
Snakebites are a serious public health problem due their high morbi-mortality. The main available specific treatment is the antivenom serum therapy, which has some disadvantages, such as poor neutralization of local effects, risk of immunological reactions, high cost and difficult access in some regions. In this context, the search for alternative therapies is relevant. Therefore, the aim of this study was to evaluate the antiophidic properties of Jatropha gossypiifolia, a medicinal plant used in folk medicine to treat snakebites. The aqueous leaf extract of the plant was prepared by decoction and phytochemical analysis revealed the presence of sugars, alkaloids, flavonoids, tannins, terpenes and/or steroids and proteins. The extract was able to inhibit enzymatic and biologic activities induced by Bothrops jararaca snake venom in vitro and in vivo. The blood incoagulability was efficiently inhibited by the extract by oral route. The hemorrhagic and edematogenic local effects were also inhibited, the former by up to 56% and the latter by 100%, in animals treated with extract by oral and intraperitoneal routes, respectively. The inhibition of myotoxic action of B. jararaca reached almost 100%. According to enzymatic tests performed, it is possible to suggest that the antiophidic activity may be due an inhibitory action upon snake venom metalloproteinases (SVMPs) and/or serine proteinases (SVSPs), including fibrinogenolytic enzymes, clotting factors activators and thrombin like enzymes (SVTLEs), as well upon catalytically inactive phospholipases A2 (Lys49 PLA2). Antiinflammatory activity, at least partially, could also be related to the inhibition of local effects. Additionally, protein precipitating and antioxidant activities may also be important features contributing to the activity presented. In conclusion, the results demonstrate the potential antiophidic activity of J. gossypiifolia extract, including its significant action upon local effects, suggesting that it may be used as a new source of bioactive molecules against bothropic venom
Armazenamento de Medicamentos em Unidades Básicas de Saúde de Macaíba, RN, Brasil
(Conselho Federal de Farmácia - CFF, 2016-03-31) Simão, Renato Wagner Tinôco de Sousa; Batista, Almária Mariz
Este estudo avaliou o armazenamento de medicamentos em 22 unidades básicas de saúde do município de Macaíba, Estado do Rio Grande do Norte, no período de janeiro a março de 2012. Para isto, foi realizada verificação in loco da infraestrutura e observação da rotina do serviço destas unidades, além de aplicação de Roteiro de Inspeção, com base na RDC nº 44/09, o que proporcionou subsídios para contextualização do papel do farmacêutico frente à assistência farmacêutica no local. Para identificação e análise dos medicamentos com prazo de validade expirado, foram utilizadas a Relação Nacional de Medicamentos Essenciais e a Relação Municipal de Medicamentos Essenciais do município. Nenhuma das farmácias destas unidades apresentava responsável técnico farmacêutico, manual sobre armazenamento de medicamentos, controle de umidade e temperatura. Em todas as farmácias havia medicamentos com prazo de validade expirado, abrangendo 1395 unidades mínimas não fracionadas, pertencendo a 31 classes farmacológicas diferentes e abrangendo 34 especialidades farmacêuticas. Os resultados revelam a precariedade em que se encontram estas unidades e, consequentemente, de suas respectivas farmácias, o que pressupõe a necessidade de atuação mais intensa por parte de gestores, vigilância sanitária e Conselhos Regional e Federal de Farmácia
Avaliação da propaganda de medicamentos veiculada em emissoras de rádio
(ABRASCO - Associação Brasileira de Saúde Coletiva, 2013-02) Batista, Almária Mariz; Carvalho, Maria Cleide Ribeiro Dantas de
O objetivo deste estudo foi avaliar propagandas de medicamentos veiculadas em emissoras de rádio em Natal (RN), Brasil, nos períodos de abril a setembro de 2008 e abril a setembro de 2010. As propagandas foram captadas, gravadas e transcritas para se efetuar uma análise legal e uma de conteúdo baseada nos preceitos de Laurence Bardin. Tanto as captadas no primeiro período (sob égide da RDC 102/00), quanto às do segundo (sob égide da RDC 96/08), apresentaram algum tipo de infração legal. A análise de conteúdo detectou, em ambos os períodos, praticamente os mesmos vícios como ausência de informações negativas sobre o medicamento, apelo ao consumo, exaltação da eficiência/eficácia e exploração abusiva de enfermidades. Apesar da mudança para uma legislação mais moderna e mais restritiva, as propagandas de medicamentos, no rádio, continuam a infringir frontalmente a legislação, cometendo abusos e desrespeitando o direito à saúde da população. O estudo aponta para a necessidade do tema propaganda de medicamentos ser tratado em um contexto mais amplo, ou seja, discutido como questão de saúde pública, considerando-se o cenário histórico-social em que se desenvolveu, uma vez que só a legislação não é suficiente para coibir abusos praticados em detrimento da saúde pública
Baccharis trimera (Less.) DC exhibits an anti-Adipogenic effect by inhibiting the expression of proteins involved in adipocyte differentiation
(MDPI, 2017-06-12) Nascimento, Daniele de Souza Marinho do; Oliveira, Ruth Medeiros; Câmara, Rafael Barros Gomes da; Gomes, Dayanne Lopes; Monte, Jessika Fernanda Santiago; Costa, Mariana Santana Santos Pereira; Fernandes, Júlia Moraes; Langassner, Silvana Maria Zucolotto; Rocha, Hugo Alexandre de Oliveira
Baccharis trimera (Less.) DC (gorse) is a plant popularly used for the treatment of obesity. In this study, we prepared three B. trimera extracts aqueous extract (AE), decoction (AE-D), and methanol extract (ME) and investigated their antioxidant effects in six different tests and their anti-adipogenic effect in 3T3-L1 cells. The extracts showed a dose-dependent antioxidant activity in all tests. AE was the most potent antioxidant in copper and ferric ion chelation assays, whereas AE-D was the most potent in superoxide and hydroxyl radical scavenging assays, reducing power assay, and total antioxidant capacity analysis. Only ME showed a cytotoxic effect against 3T3-L1 cells. Lipid accumulation decreased in 3T3-L1 adipocytes in the presence of AE and AE-D extracts (0.5 to 1.0 mg/mL). In addition, the extracts dramatically attenuated the levels of adipogenic transcriptional factors, including CCAAT enhancer-binding protein α (C/EBPα), CCAAT enhancer-binding protein β (C/EBPβ), and gamma receptors by peroxisome proliferators (PPARγ), during adipogenesis. AE-D (1.0 mg/mL) caused an approximately 90% reduction in the levels of these molecules. We propose that B. trimera has an anti-adipogenic effect and could be used in the development of functional foods
Bati Butter as a potential substrate for lipase production by Aspergillus terreus NRRL-255
(Foods, 2023-01-27) Passos, Thais Souza; Assis, Cristiane Fernandes de; Barros, Karen dos Santos; Jácome, Millena Cristiane de Medeiros Bezerra; Azevedo, Wendell Medeiros de; Ramalho, Adriana Margarida Zanbotto; Santos, Everaldo Silvino dos; Sousa Junior, Francisco Canindé de; Damasceno, Karla Suzanne Florentino da Silva Chaves; https://orcid.org/0000-0003-2054-1544; https://orcid.org/0000-0001-7595-5395; https://orcid.org/0000-0003-2042-4348; https://orcid.org/0000-0001-6884-1023
This study evaluated bati butter (Ouratea parviflora) as a substrate for lipase productionby solid-state fermentation (SSF) using Aspergillus terreus NRRL-255. A gas chromatograph with a flame ionization detector determined the bati butter fatty acid profile. Lipase production and spore count were optimized using a 3^2 experimental design and evaluated using the response surface methodology. Moreover, the crude enzyme extract was evaluated against different pH, temperature, and activating and inhibitors reagents. Regarding the fatty acids identified, long-chain accounted for 78.60% of the total lipids. The highest lipase production was obtained at 35 ◦C and 120 h of fermentation, yielding 216.9 U g−1 . Crude enzyme extract presented more significant activity at 37 ◦C and pH 9. β-Mercaptoethanol increased the enzyme activity (113.80%), while sodium dodecyl sulfate inactivated the enzyme. Therefore, bati butter proved to be a potential substrate capable of inducing lipase production by solid-state fermentation
Chitooligosaccharides antagonize the cytotoxic effect of glucosamine
(Springer, 2012-10-02) Santos, Everaldo Silvino dos; Assis, Cristiane Fernandes de; Costa, Leandro Silva; Melo-Silveira, Raniere Fagundes; Oliveira, Ruth Medeiros; Pagnoncelli, Maria Giovana Binder; Rocha, Hugo Alexandre Oliveira; Macedo, Gorete Ribeiro de
Chitooligosaccharides (COS) are partially hydrolyzed compounds derived from chitosan that exhibit a number of biological activities, including antitumor, antibacterial and antifungal properties. In this work, we examined the cytotoxicity of pure COS and oligomers A, B and C (solutions composed of different amounts of COS) produced by enzymatic hydrolysis using a crude enzyme extract produced by the fungus Metarhrizium anisopliae. The antiproliferative effect of these molecules was analyzed using tumor cell lines (HepG2 and HeLa cells) and in a normal cell line (3T3). The antioxidant activity was analyzed in several in vitro experiments. Glucosamine showed higher toxicity (approximately 92%) to all cell lines studied. However, the oligomers obtained after hydrolysis demonstrated no toxic effects on the normal cells (3T3). Furthermore, we showed that a small amount of other COS can decrease the cytotoxic effect of glucosamine against 3T3 cells, indicating that glucosamine could be used as an antitumor drug in the presence of other COS. In addition, different effects were found in antiproliferative assays, which depended on the COS composition in the oligomers (A, B and C), showing that a combination of them may be essential for developing antineoplastic drugs. Superoxide anion scavenging was the main antioxidant activity demonstrated by the COS and oligomers. This activity was also dependent on the oligomer composition of the chitosan hydrolysates. Further work will identify the ideal proportions of COS and glucosamine for maximizing the effects of these biological activities
Chitooligosaccharides enzymatic production by Metarhizium anisopliae
(Springer Science and Business Media LLC, 2010-02-18) Santos, Everaldo Silvino dos; Assis, Cristiane Fernandes de; Araújo, Nathália Kelly; Pagnoncelli, Maria Giovana Binder; Pedrini, Márcia Regina da Silva; Macedo, Gorete Ribeiro de
The products of chitosan hydrolysis are chitooligosaccharides and are used mainly for medical applications due to their specific biological activities. The objective of this study was to detect and identify the products of enzymatic hydrolysis of chitosan (dimers to hexamers) using a crude extract of chitosanolytic enzymes produced by the fungus Metarhizium anisopliae. These fungus was able to produce, during 48 h cultivation in a medium containing chitosan, chitooligosaccharides ranging from dimers, trimers, tetramers and pentamers at concentrations 0.2, 0.19, 0.06, 0.04 mg/mL, respectively, and the enzymatic activity was 2.5 U/L. Using the crude enzyme extract for chitosan hydrolysis, we detected the presence of dimers to hexamers at hydrolysis times of 10, 20, 30, 40, 50 and 60 min of enzymatic reaction, but the yields were higher at 10 min (54%). The hexamers was obtained only with 30 min of reaction with concentration of 0.004 mg/mL
Cytotoxicity of chitosan oligomers produced by crude enzyme extract from the fungus metarhizium anisopliae in hepg2 and hela cells
(Hilaris Publisher, 2012) Santos, Everaldo Silvino dos; Assis, Cristiane Fernandes de; Melo-Silveira, Raniere Fagundes; Oliveira, Ruth Medeiros de; Costa, Leandro Silva; Rocha, Hugo Alexandre de Oliveira; Macedo, Gorete Ribeiro de
Chitooligosaccharides exhibit biological activities, including antitumor, antimicrobial and antioxidant. In this study we used a mixture of chitooligosaccharides produced by enzymatic hydrolysis in two tumor cell lines and assessed the cell proliferation and cytotoxicity of these compounds. The proliferation of HeLa cells was inhibited around by 60%
Desenvolvimento e validação de indicadores de boas práticas de segurança do paciente: Projeto ISEP-Brasil
(Escola Nacional de Saúde Pública Sergio Arouca, Fundação Oswaldo Cruz, 2016-09-19) Batista, Almária Mariz; Gama, Zenewton André da Silva; Saturno-Hernández, Pedro Jesus; Freitas, Marise Reis de; Ribeiro, Denise Nieuwenhoff Cardoso; Medeiros, Paulo José de; Barreto, Analúcia Filgueira Gouveia; Lira, Benize Fernandes; Medeiros, Carlos Alexandre de Souza; Vasconcelos, Cilane Cristina Costa da Silva; Silva, Edna Marta Mendes da; Faria, Eduardo Dantas Baptista de; Dantas, Jane Francinete; Neto Júnior, José Gomes; Medeiros, Luana Cristina Lins de; Sicolo, Miguel Angel; Fonseca, Patrícia de Cássia Bezerra; Costa, Rosângela Maria Morais da; Monte, Francisca Sueli; Melo Neto, Veríssimo de
Um monitoramento eficaz da segurança do paciente precisa focar a implantação de práticas baseadas em evidências que evitem danos desnecessários ligados à assistência à saúde. O objetivo do Projeto ISEP-Brasil foi desenvolver e validar indicadores de boas práticas de segurança do paciente para o contexto brasileiro. Tomou por base a tradução e adaptação dos indicadores validados no Projeto ISEP-Espanha, além do documento Safe Practices for Better Healthcare do National Quality Forum dos Estados Unidos, que possui 34 recomendações de boas práticas. Realizou-se validação por um painel de 25 especialistas e análise da confiabilidade e viabilidade em um estudo-piloto realizado em três hospitais com diferentes tipos de gestão (estadual, federal e privada). Aprovaram-se 75 indicadores de boas práticas (39 de estrutura; 36 de processo) para 31 das 34 recomendações. Os indicadores foram considerados válidos, confiáveis e úteis para o monitoramento da segurança do paciente em hospitais brasileiros
Efeitos da estratégia de indução na produção de antígeno 503 de Leishmania infatum chagasi em E. coli recombinante
(Universidade Federal de Campina Grande (UFCG), 2014) Santos, Everaldo Silvino dos; Sousa Júnior, Francisco Canindé de; Silva, Valéria Nogueira da; Vaz, Michelle Rossana Ferreira; Chibério, Abimaelle Silva; Dias, Emanuele Cardoso; Ribeiro, Vitor Troccoli; Macedo, Gorete Ribeiro de
O presente trabalho teve como objetivo estudar o efeito de duas estratégias de indução (pulso e adição gradual) com IPTG na expressão do antígeno 503 de Leishmania infatum chagasi em E. coli. No ensaio em batelada, o IPTG foi adicionado ao cultivo na concentração final de 1 mM. Na batelada alimentada, 0,2 mM do indutor foi adicionado a cada hora, totalizando uma concentração final de 0,8 mM. O procedimento de indução por pulsos de IPTG indicou um incremento de aproximadamente 49% na produção de biomassa quando comparado em batelada. Pode-se concluir que a estratégia de indução empregando pulsos de IPTG (batelada alimentada) foi mais eficaz na expressão do antígeno 503 quando comparado à estratégia de batelada simples. A eficácia da estratégia de indução foi confirmada por eletreforese
Effect of Dexamethasone-Loaded PLGA Nanoparticles on Oral Mucositis Induced by 5-Fluorouracil
(MDPI, 2021-01-04) Ribeiro, Susana Barbosa; Araújo, Aurigena Antunes de; Oliveira, Maisie Mitchele Barbosa; Silva, Alaine Maria dos Santos; Silva Júnior, Arnóbio Antônio da; Guerra, Gerlane Coelho Bernardo; Brito, Gerly Anne de Castro; Leitão, Renata Ferreira de Carvalho; Araújo Júnior, Raimundo Fernandes de; Garcia, Vinícius Barreto; Vasconcelos, Roseane Carvalho; Medeiros, Caroline Addison Carvalho Xavier de
Oral mucositis (OM) is characterized by the presence of severe ulcers in the oral region that affects patients treated with chemotherapy. It occurs in almost all patients who receive radiotherapy of the head and neck, as well as patients who undergo hematopoietic cell transplantation. The pathophysiology of OM is complex, and there is no effective therapy. The aim of this study was to evaluate the effect of dexamethasone-loaded poly(D,L-Lactic-co-glycolic) nanoparticles (PLGA-DEX NPs) on an OM model induced in hamsters. The NPs were synthesized using the emulsification-solvent evaporation method and were characterized by the size, zeta potential, encapsulation efficiency, atomic force microscopy, physicochemical stability, and the in vitro release. The OM was induced by the administration of 5-FU on the first and second days and mechanical trauma on the 4th day of the experiment. PLGA-DEX NPs were administered to treat OM. The animals were euthanized on the 10th day. Macroscopic and histopathological analyses were performed, measurement of malonaldehyde (MDA) and ELISA was used to determine the levels of IL-1β and TNF-α. Immunoexpressions of NF-κB, COX-2, and TGF-β were determined by immunohistochemistry, and qRT-PCR was used to quantify the gene expression of the GILZ, MKP1, and NF-κB p65. The PLGA-DEX NPs (0.1 mg/kg) significantly reduced macroscopic and histopathological scores, decreased MDA, TNF-α and IL-1β levels, immunostaining for NF-κB, COX-2, TGF-β, and suppressed NF-κB p65 mRNA expression, but increased GILZ and MKP1 expression
Enhancing enzymatic hydrolysis of coconut husk through Pseudomonas aeruginosa AP 029/GLVIIA rhamnolipid preparation
(Elsevier, 2017-08) Santos, Everaldo Silvino dos; Araújo, Cynthia Kérzia Costa de; Campos, Alan de Oliveira; Padilha, Carlos Eduardo de Araújo; Sousa Júnior, Francisco Canindé de; Nascimento, Ruthinéia Jéssica Alves do; Macedo, Gorete Ribeiro de
This work investigated the influence of chemical (Triton X-100) and biological surfactant preparation (rhamnolipids) in coconut husk hydrolysis that was subjected to pretreatment with acid-alkali or alkaline hydrogen peroxide. The natural and pretreated biomass was characterized using the National Renewable Energy Laboratory protocol analysis as well as X-ray diffraction and scanning electron microscopy. The results demonstrated that in terms of the total reducing sugars, there was no significant difference between the hydrolysis using Triton X-100 and rhamnolipids, regardless of the pretreatment. A cellulosic conversion value as high as 33.0% was obtained in experiments with rhamnolipids. The coconut husk was observed to be a potential biomass that could produce second generation ethanol, and the rhamnolipid preparation can be used to support for the enzymatic hydrolysis, enhancing the advantage of cellulose conversion into glucose over chemical surfactants because it is an environmentally friendly approach
Estudo da composição química da semente da quinoa Chenopodium quinoa
(Brazilian Journal of Development, 2020-06-04) Passos, Thaís Souza; Câmara, Arlene da; Marques, Bruna Lorena Meneses; Lira, Keith Hellen Dias da Silva; Sousa Júnior, Francisco Canindé de; Assis, Cristiane Fernandes de; https://orcid.org/0000-0003-2054-1544; https://orcid.org/0000-0003-2042-4348; https://orcid.org/0000-0001-7595-5395
A Chenopodium quinoa Wild, quinoa tem sido considerada uma espécie de cultivo importante devido apresentar proteínas de alto valor biológico e aminoácidos essenciais biodisponíveis, lipídios insaturados, fibras dietéticas, carboidratos complexos e outros compostos bioativos benéficos, como compostos polifenólicos. O objetivo desse trabalho foi determinar a composição química da semente de quinoa, gentilmente cedida pela empresa Plantus S/A, quantificar os principais minerais presentes, determinar condição mais adequada para a extração dos compostos fenólicos, quantificá-los e avaliar a atividade antioxidante. As análises de umidade, cinzas, lipídeos, fibra bruta, proteínas e carboidratos foram realizadas pelo método da AOCS. A determinação dos minerais utilizou espectrometria de emissão óptica com plasma (ICP/OES). A análise de fenólicos totais foi realizado pelo método Folin –Ciocalteu. A atividade antioxidante por DPPH foi determinada de acordo com método proposto por Brand-Willians. O teor de umidade da semente de quinoa foi de 12,78 ± 0,031, valor superior quando se comparado com a semente de linhaça, porém a quantidade de cinzas (1,925g ± 0,014) foi inferior a mesma semente. O teor de lipídeos foi 10, 740% ± 1,6 mostrando a riqueza de ácidos graxos da semente. A fibra bruta encontrada foi 7, 633% ± 1, 0 com valor inferior aos contidos na semente de linhaça (35,5%) e ao da semente de gergilim (11,9%) devido ao método utilizado. O valor das proteínas foi 13, 125% ± 1, 4, se apresentando como segundo componente mais predominante, e devido a essa quantidade a semente de quinoa atrai a atenção de pesquisadores, principalmente por ela possuir equilíbrio e eficiência semelhante a proteína do leite. O valor dos carboidratos determinado foi de aproximadamente 53,34% ± 1,94, sendo esses superiores a quantidade de carboidratos presentes na semente de linhaça e de gergilim. A análise dos minerais mostrou o cálcio e o fósforo como os minerais predominantes 100 e 31 mg.g-1, respectivamente. A quantidade de compostos fenólicos da semente foi 1,41 mg de ácido gálico.g-1. Já ao valor do IC50 determinado pelo método DPPH foi de 0,02 mg/g, mostrando a alta capacidade antioxidante da semente. Este trabalho mostra que a semente apresenta elevado teor de proteínas, lipídeos e compostos fenólicos sendo relevante para a área de alimentos
Evaluation of medicines advertising in medical journals
(Universidade de São Paulo (Faculdade de Ciências Farmacêuticas), 2009-06) Souza, Daliana Maria Berenice de Oliveira; Lima, Suellen Cristiane Medeiros de; Batista, Almária Mariz; Carvalho, Maria Cleide Ribeiro Dantas de
Este trabalho objetivou analisar propagandas de medicamentos sujeitos à prescrição, que foram veiculadas em três periódicos das áreas de cardiologia e neurologia, dirigidos a profissionais de saúde. A análise envolveu critérios baseados na legislação em vigor, além de outros, e das referências bibliográficas. Averiguou-se a presença dos seguintes itens: número de registro, nome do fármaco, indicações terapêuticas, contra-indicações, cuidados e advertências, reações adversas, efeitos colaterais, posologia, legibilidade das informações técnico-científicas e referências bibliográficas, frases e/ou expressões sobre vantagens ante outros fármacos, mensagens de segurança, promessas de cura e imagens de pessoas sorridentes, além da confirmação das citações com base nas referências bibliográficas. Dentre os critérios legais avaliados, observou-se a ausência de legibilidade das informações técnico-científicas em 85% das peças promocionais; a ausência dos efeitos colaterais em 23%; a ausência de cuidados e advertências em 15%; de contra-indicações em 12,8%; de posologia em 6,4%; do número de registro em 2,7% e da Denominação Comum Brasileira/Denominação Comum Internacional (DCB/DCI) em 0,6%. Das 130 afirmações relativas a benefícios frente a outros fármacos, 23,8% não foram confirmadas; e das 48 mensagens de segurança veiculadas, 41,7% não tinham respaldo nas referências citadas. As imagens de pessoas sorridentes foram recurso usado em 49,2 % das peças promocionais. Das 1.362 referências analisadas, 19,7% não foram encontradas e 37,1% das afirmações referenciadas não foram confirmadas
Extraction of bioactive alkaloids from Melocactus zehntneri using supercritical fluid
(Elsevier, 2017-11) Brandão, Gustavo Henrique Azevedo; Rigo, Graziela Vargas; Roque, A. A.; Souza, A. C. D.; Scopel, Marina; Nascimento, Cláudio Augusto Oller do; Tasca, Tiana; Courtial, Camila Gambini Pereira; Giordani, Raquel Brandt
The purpose of this study was to extract alkaloids from Melocactus zehntneri aerial parts using supercrit-ical fluid extraction (SFE) and to evaluate their cytotoxic action. SFE process was compared to differentclassical low pressure solvent extraction processes in terms of global yield, extract profile and biologicalactivity. Two specimens of M. zehntneri were evaluated: young and adult aerial parts. The extracts wereanalyzed by HPLC-UV/DAD as well as they were evaluated against HMVII and Trichomonas vaginalis. Theresults indicated a qualitative difference in chromatographic profile of the extracts. Finally, the resultspoint out the potential of the extract obtained from aerial parts of young specimens (Y-RM) through SFEat 300 bar/55◦C against T. vaginalis and HMVII, presenting relevant information for development of newstudies about cytotoxic
Fractional recovery of oleaginous bioactive produced by Rhodotorula mucilaginosa CCT3892 using deep eutectic solvents
(Elsevier, 2020-12) Santos, Everaldo Silvino dos; Costa, Willyan Araújo da; Padilha, Carlos Eduardo de Araújo; Dantas, Júlia Maria de Medeiros; Silva, Maylla Maria Correia Leite; Rocha, Hugo Alexandre de Oliveira; Silva, Flávio Luiz Honorato da; Ferrari, Márcio
The use of four choline chloride-based deep eutectic solvents (DES) in the recovery of oleaginous compounds from Rhodotorula mucilaginosa CCT3892 cells were investigated in this study, focusing on a novelty treatment to recovery mini-compounds intercellular produced by the yeast, as alternative for conventional methods. Regarding DES ability to improve the yeast permeability for an eventual oil-lipids recovery, it was noticed that all solvents were as efficient as a hydrochloride acid treatment, presenting a recovery percentage above 100.0% in relation untreated cells extraction. The best total carotenoid recovery was achieved using DES synthetized with choline chloride an glycerol (ChGy treatment) (0.110 ± 0.005 mg.mL−1). DES promoted a fractional recovery of carotenoids being such process for R. mucilaginosa mentioned for the first time in this paper. Thus, showing potential to be used in the industry once the solvent preserved the antioxidant activity of carotenoids and exhibit moderated cytotoxicity
Fractionation of green coconut fiber using sequential hydrothermal/alkaline pretreatments and amberlite XAD-7HP resin
(Elsevier, 2019-12) Souza, Domingos Fabiano de Santana; Padilha, Carlos Eduardo de Araújo; Nogueira, Cleitiane da Costa; Oliveira Filho, Marcos Antônio; Sousa Júnior, Francisco Canindé de; Assis, Cristiane Fernandes de; Oliveira, Jackson Araújo de; Santos, Everaldo Silvino dos
The fractionation of agroindustrial and forest residues is a premise of the biorefinery concept. Thus, the present study focuses on pretreatments (hydrothermal and alkaline) and detoxification processes in order to transform green coconut fiber (GCF) into cellulose-rich material, dye biosorbent, bioactive phenolic compounds, lignin and arabinoxylan. The adsorption onto Amberlite XAD-7HP resin allowed the best recovery of phenolic compounds from hydrothermal pretreatment liquor, which presented potent antioxidant activities such as inhibition of hydroxyl and superoxide radicals of 77.05% and 76.88%, respectively. Acid precipitation was effective to recover 41.23% of the initial lignin content from alkaline pretreatment liquor. The detoxified hydrothermal pretreatment liquor was used as an additional source of glucose, increasing the final concentration of ethanol by 79.6% in simultaneous saccharification and fermentation of delignified GCF. Using delignified GCF as biosorbent, made it possible to obtain a static adsorption capacity of 200 mg of methylene blue dye per gram of biosorbent and good recyclability in dynamic experiments. Therefore, the proposed methodology guarantees a practical way of manufacturing value-added products from lignocellulosic materials
Gelatin nanoparticles enable water dispersibility and potentialize the antimicrobial activity of Buriti (Mauritia flexuosa) oil
(BMC Biotechnology, 2020-10-16) Passos, Thais Souza; Castro, Gabrielle Mahara Martins Azevedo; Nascimento, Sara Sayonara da Cruz; Medeiros, Isaiane; Araújo, Nathália Kelly; Maciel, Bruna Leal Lima; Padilha, Carlos Eduardo; Ramalho, Adriana Margarida Zanbotto; Sousa Júnior, Francisco Canidé; Assis, Cristiane Fernandes de; https://orcid.org/0000-0003-2054-1544; https://orcid.org/0000-0003-4541-3952; https://orcid.org/0000-0001-6429-1538; https://orcid.org/0000-0003-2042-4348; https://orcid.org/0000-0001-7595-5395
Background: Buriti oil presents numerous health benefits, but due to its lipophilic nature and high oxidation, it is impossible to incorporate it into aqueous food matrices. Thus, the present study evaluated whether powder nanoparticles based on porcine gelatin (OPG) and in combination with sodium alginate (OAG) containing buriti oil obtained by O/W emulsification followed by freeze-drying enabled water dispersibility and preserved or increased the antimicrobial activity of the oil. Results: OPG presented spherical shape, smooth surface, smaller particle size and polydispersity index [51.0 (6.07) nm and 0.40 (0.05)], and better chemical interaction between the nonpolar amino acids and the hydrophobic oil chain. OPG also presented a higher dispersibility percentage [85.62% (7.82)] than OAG [50.19% (7.24)] (p < 0.05), and significantly increased the antimicrobial activity of the oil by 59, 62, and 43% for Pseudomonas aeruginosa, Klebsiellapneumonia, and Staphylococcus aureus, respectively. Conclusions: Thus, nanoencapsulation in gelatin is a promising strategy to increase the potential to use buriti oil in foods

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