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Phytochemical and biological investigations of Caryocar brasiliense Camb  [cached]
Jociani ASCARI,Jacqueline Aparecida TAKAHASHI,Maria Amélia Diamantino BOAVENTURA
Boletín Latinoamericano y del Caribe de Plantas Medicinales y Aromáticas , 2010,
Abstract: El epicarpo y el mesocarpo externo de Caryocar brasiliense Camb. fueron evaluados química y biologicamente. Del estudio fitoquímico, fueron aislados e identificados por RMN (1D y 2D) galato de etilo, 5-hidroximetilfurfural, ácido gálico, chiquimato de metilo y mezclas de B-D-fructopiranosa y B-D-fructofuranosa, a- y B-D-glucosa, lupeol y ácido oléico, B-sitosterol, estigmasterol y ácido oléico. Fueron realizados ensayos de evaluación del efecto anti-oxidante, anti-microbiano y alelopático para el extracto etanólico crudo, fraciones y compuestos puros, los cuales presentaron buena actividad.
Micropropaga??o de pequizeiro (Caryocar brasiliense Camb.)
Santos, Breno Régis;Paiva, Renato;Nogueira, Raírys Cravo;Oliveira, Lenaldo Muniz de;Silva, Diogo Pedrosa Corrêa da;Martinotto, Cristiano;Soares, Fernanda Pereira;Paiva, Patrícia Duarte de Oliveira;
Revista Brasileira de Fruticultura , 2006, DOI: 10.1590/S0100-29452006000200031
Abstract: due the presence of seed dormancy, the propagation of caryocar brasiliense requires studies in order to obtain young asexually plants. this work had as objective contribute to the establishment of a "pequizeiro" micropropagation protocol. for shoot induction, explants were inoculated in wpm medium with different concentrations and interactions of bap and naa. for rooting induction, shoots obtained in vitro were transferred to wpm medium supplemented with different concentrations of iba in the presence or absence of activated charcoal. the best treatment for shoot induction was the use of 0,05mg l-1 ana + 0,75mg l-1 bap, which produced an average of 6 shoots/explant (17,4) providing the highest rate of multiplication (8,7). the use of 3mg l-1 iba promoted root induction in all explants generating average of 12,87 roots per explant. roots developed in the presence of activated charcoal presenting higher length (33,16 mm) and higher number of secondary roots (19,53).
Pequi (Caryocar Brasiliense Camb.): informa??es preliminares sobre um pequi sem espinhos no caro?o
Kerr, Warwick Estevam;Silva, Francisco Raimundo da;Tchucarramae, Bdijai;
Revista Brasileira de Fruticultura , 2007, DOI: 10.1590/S0100-29452007000100035
Abstract: one pequi plant, (caryocar brasiliense camb. caryocaraceae) whose fruits had no spines in the kernel, was found in the noth of mato grosso (figures 1 and 2). this is the third most consumed fruit by the populations of the brazilian cerrado and its only deffect is to have the kernel full of spines. the history of its discovery is related.
Diurnal bird visiting of Caryocar brasiliense Camb. in Central Brazil
MELO, C.;
Revista Brasileira de Biologia , 2001, DOI: 10.1590/S0034-71082001000200014
Abstract: nectar of nocturnal flowers may be used by diurnal species that occasionally accomplish secondary pollination. thirteen bird species visited caryocar brasiliense flowers in central brazil. there is a temporal separation between nectarivores and non-nectarivores species. nectarivores birds visited flowers late in the morning, while other species appear earlier. c. brasiliense nectar may be an alternative resource to birds visitors during the dry season.
Diurnal bird visiting of Caryocar brasiliense Camb. in Central Brazil  [cached]
MELO C.
Revista Brasileira de Biologia , 2001,
Abstract: Nectar of nocturnal flowers may be used by diurnal species that occasionally accomplish secondary pollination. Thirteen bird species visited Caryocar brasiliense flowers in central Brazil. There is a temporal separation between nectarivores and non-nectarivores species. Nectarivores birds visited flowers late in the morning, while other species appear earlier. C. brasiliense nectar may be an alternative resource to birds visitors during the dry season.
Endothelium-Dependent Vasorelaxant Effect of Butanolic Fraction from Caryocar brasiliense Camb. Leaves in Rat Thoracic Aorta
Lais Moraes de Oliveira,Aline Gabriela Rodrigues,Elaine Fernanda da Silva,Letícia Bonancio Cerqueira,Carlos Henrique Castro,Gustavo Rodrigues Pedrino,Maria Helena Catelli de Carvalho,Roberto Pontarolo,Elson Alves Costa,Francinete Ramos Campos,Fernando Paranaiba Filgueira,Paulo César Ghedini
Evidence-Based Complementary and Alternative Medicine , 2012, DOI: 10.1155/2012/934142
Abstract: Caryocar brasiliense Camb. “pequi” is a native plant from the Cerrado region of Brazil that contains bioactive components reported to be antioxidant agents. Previous work has demonstrated that dietary supplementation with pequi decreased the arterial pressure of volunteer athletes. We found that the crude hydroalcoholic extract (CHE) of C. brasiliense leaves relaxed, in a concentration-dependent manner, rat aortic rings precontracted with phenylephrine, and that the butanolic fraction (BF) produced an effect similar to that of the CHE. Aortic relaxation induced by BF was abolished by endothelium removal, by incubation of the nitric oxide synthase inhibitor L-NAME, or the soluble guanylatecyclase inhibitor ODQ. However, incubation with atropine and pyrilamine had no effect on the BF-induced vasorelaxation. Moreover, this effect was not inhibited by indomethacin and tetraethylammonium. The concentration-response curve to calcium in denuded-endothelium rings was not modified after incubation with BF, and the vasorelaxation by BF in endothelium-intact rings precontracted with KCl was abolished after incubation with L-NAME. In addition, administration of BF in anesthetized rats resulted in a reversible hypotension. The results reveal that C. brasiliense possesses both in vivo and in vitro activities and that the vascular effect of BF involves stimulation of the nitric oxide/cyclic GMP pathway.
PROPAGA O SEXUADA DO PEQUIZEIRO (Caryocar brasiliense Camb.) ESTIMULADA POR áCIDO GIBERéLICO SEXED PROPAGATION OF PEQUI (Caryocar brasiliense Camb.) INDUCED BY GIBBERELLIC ACID
Tatiely Gomes Bernardes,Ronaldo Veloso Naves,Cláudia Fabiana Alves Rezende,Jácomo Divino Borges
Pesquisa Agropecuária Tropical , 2008, DOI: 10.5216/pat.v38i2.4154
Abstract: A espécie Caryocar brasiliense (Camb.), conhecida como pequi, apresenta baixa porcentagem e baixo tempo médio de emergência de plantulas. Buscando-se solucionar esse problema,o presente trabalho prop s-se a avaliar diferentes concentra es de ácido giberélico (GA3) em sementes de pequi sem endocarpo. Os frutos maduros, após coletados, foram armazenados por 27 dias, em sacos plásticos, e,posteriormente, retirou-se a casca, o mesocarpo e os espinhos. Após sete dias, a amêndoa foi extraída do endocarpo. Os tratamentos constituiram-se de: água destilada, GA3 a 75 mg L-1, GA3 a 150 mg L-1, GA3 a 300 mg L-1 e GA3 a 600 mg L-1, embebidas por 24 horas. Foram utilizadas 26 sementes por parcela, em cinco tratamentos e cinco epeti es. Avaliaramse a porcentagem e tempo médio de emergência das plantulas, a altura, o diametro e a massa fresca e seca das raízes e da parte aérea das plantulas de pequi. Os dados obtidos foram submetidos a análises de variancia e regress o linear. O ácido giberélico, nas condi es e concentra es estudadas, influenciou, significativamente, a porcentagem e o tempo médio de emergência das plantulas de pequi. Obteve-se, em média, 24% de emergência, aos quarenta dias após a semeadura. O uso de ácido giberélico (GA3) em sementes de pequi sem endocarpo, na concentra o estimada de 345 mg L-1, proporciona maior porcentagem de emergência, em rela o aos demais tratamentos avaliados. PALAVRAS-CHAVE: Pequi; h rmonio vegetal; emergência. The species Caryocar brasiliense, known as 'pequi', presents low percentage and low average time for plantule emergence. In order to solve this problem, this study aimed to evaluate the levels of gibberellic acid (GA3) on seed emergence of C. brasiliense, without endocarp. Ripe fruits were collected and stored for 27 days in plastic bags. Subsequently, their skin, mesocarp, and thorns were removed. After seven days, the almond was extracted from the endocarp. The treatments were: distilled water, and GA3 at 75 mg L-1, 150 mg L-1,300 mg L-1, and 600 mg L-1, soaked for 24 hours. Twenty-six seeds per plot were arranged in a completely randomized design, with five treatments and five replications. The percentage and average time for plantule emergence, height, diameter, and fresh and dry root and shoot mass of pequi plantules were evaluated. The data were analyzed by variance analysis and linear regression. The gibberellic acid, at the conditions and concentrations evaluated, influenced significantly the percentage and average time for the pequi plantule emergence. Forty days after sowing, the emergence average was 24%
Extra??o, secagem e torrefa??o da amêndoa do pequi (Caryocar brasiliense Camb.)
Rabêlo, Ana Maria da Silva;Torres, Célia Lopes;Geraldine, Robson Maia;Silveira, Miriam Fontes Araujo;
Ciência e Tecnologia de Alimentos , 2008, DOI: 10.1590/S0101-20612008000400016
Abstract: the pequi (caryocar brasiliense camb.) edible almond seed is little used. the aim of this study is to evaluate almond seeds of pequi supplied by the "associa??o de beneficiamento de frutos do cerrado" (cerrado fruit supply association), located in the city of damianópolis-go. for the extration of the almond, a guillotine like equipment was used with the purpose of cutting the seed in half. the equipment was composed of a fixed blade placed in a wooden support, recovered with polyvinyl chloride (pvc), and it presented satisfactory performance. for the almonds drying, the temperature of 70 oc for 60 minutes was suggested since it allowed water activity of around 0,60 in shorter drying time. the almonds roasted at 130 °c for 15 and 30 minutes presented better sensorial characteristics, and proved not significantly different among themselves (p > 0,05) in the friedman test. in the time of 30 minutes, trends of better sensorial characteristics such as color and crunchiness of the final product were observed
Influência da secagem do pequi (Caryocar brasiliense Camb.) na qualidade do óleo extraído
Aquino, Ludmila Pereira;Ferrua, Fabiana Queiroz;Borges, Soraia Vilela;Antoniassi, Rosemar;Correa, Jefferson Luiz Gomes;Cirillo, Marcelo Angelo;
Ciência e Tecnologia de Alimentos , 2009, DOI: 10.1590/S0101-20612009000200018
Abstract: pequi (caryocar brasiliense camb) has stood out for being an oleaginous fruit rich in carotenoids. drying is widely used technique in the oil extraction process using hexane, but the degradation of oil and carotenoids may occur. the objective of this study was to evaluate the influence of different drying methods (sun, air-circulated drier at 40 and 60 °c) and time (4 hours and up to constant weight) on the yield and quality of the oil extracted using hexane using a soxhlet apparatus. when the pequi pulp was dried up to 3% or even lower, more oil yield was obtained (52-59%, dry basis). the total carotenoids contents obtained were higher and the peroxide index was lower for the pulp dried at 40 °c in an air-circulated drier when compared to drying at 60 °c in an air-ventilated drier and to sun drying technique. these results indicate that drying in an air-circulated drier at 40 °c for 19 hours resulted in higher oil yields with less heat degradation.
Anticlastogenic potential and antioxidant effects of an aqueous extract of pulp from the pequi tree (Caryocar brasiliense Camb)
Khouri, Juliana;Resck, Inês S.;Po?as-Fonseca, Marcio;Sousa, Thiago M.M.;Pereira, Luciana O.;Oliveira, Adriano B.B.;Grisolia, Cesar K.;
Genetics and Molecular Biology , 2007, DOI: 10.1590/S1415-47572007000300024
Abstract: the effectiveness of an aqueous extract of caryocar brasiliense (caryocaraceae) camb pulp, popularly known in brazil as pequi, against clastogenicity induced by cyclophosphamide and bleomycin was evaluated using an in vivo mouse bone marrow cell micronuclei test, an in vitro chinese hamster ovary cell (cho-k1) chromosome aberration test and an in vitro antioxidant assay based on the oxidative damage to 2-deoxy-d-ribose (2-dr) induced by hydroxyl radicals (?oh) generated by the reaction between ascorbic acid and (fe iii)-edta. in mouse bone marrow cells the extract showed a protective effect against micronuclei induced by cyclophosphamide and bleomycin but did not interfere with polychromatic bone marrow erythrocyte proliferation, except when the mice had been treated with the highest dose of cyclophosphamide. when cho-k1 cells were pretreated by adding 0.01, 0.05 or 0.1 ml of extract per ml of cell culture medium 24 or 48 h before bleomycin or cyclophosphamide there was a protective effect against chromosome breaks and a significant decrease in the mitotic index (a measure of cytotoxicity) of the cho-k1 cells. the extract also had a protective effect against oxidative hydroxyl radical damage to 2-dr. this study suggests that c. brasiliense pulp aqueous extract has anticlastogenic potential, possibly due to its antioxidative properties.
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