Palmito de pupunha (Bactris gasipaes Kunth.) composição mineral e cinética de enzimas oxidativas

Galdino, Nathália Ottoboni; Clemente, Edmar

doi:10.1590/s0101-20612008000300006

Cited by 17 publications

(7 citation statements)

References 6 publications

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“…However, higher drying temperatures decreased the oxidative enzyme activity and it was not detected in the extracts of flours dried at 90℃. Galdino and Clemente (2008) tested the thermo stability of PPO and POD extracted from heart-of-palm, also noted a gradual decrease in enzyme activity with increasing temperature. The oxidative enzyme activity may change according to age/harvest- lightest flour was obtained in the drying process conducted at 60℃ although not all the oxidative enzymes were inactivated.…”

Section: Resultsmentioning

confidence: 93%

“…All the peach palm portions can be utilized although the fruits and the heart-of-palm are the most important economically. Among cultivated species for the production of heart-of-palm, the peach palm stands out because it is an excellent alternative for sustainable production (Galdino and Clemente, 2008).…”

Section: Introductionmentioning

confidence: 99%

“…There are many studies of peach palm (Galdino and Clemente, 2008;Egea et al, 2012;Yuyama et al, 1999;Monteiro et al, 2002) but no one described its composition and structural characterization of all its parts. Besides the peach palm tissues characterization, there is a need to improve the utilization of its by-products generated during the canning process.…”

Section: Introductionmentioning

confidence: 99%

“…The peroxidase (POD) and polyphenol oxidase (PPO) were extracted using 100 mM sodium phosphate buffer in pH 5.5 and 6.5, respectively. The samples were filtered and centrifuged at 7,000 × g for 20 min at 4℃ (Galdino and Clemente, 2008). The same extraction was used for the flours prepared and dried at different temperatures.…”

Section: Introductionmentioning

confidence: 99%

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Peach Palm (Bactris gasipaes kunth) Characterization and the Potential of by-Products Flour Processing

Barros

Bolanho

Danesi

et al. 2013

FSTR

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The peach palm cultivated for the industrial canning of heart-of-palm has different portions whose utilization can be maximized. The aim of this work was to evaluate the composition and structure of all portions of peach palm rod and to investigate the possible utilization of the by-products for flours processing. The central edible portion had the highest content of protein, fat, starch and the lowest level of dietary fiber. The highest content of oxalic acid was found in the shell. The tissue is formed by fibrous elements, xylem and phloem vessels, amiloplasts and calcium oxalates in druses and raphides. Although the oxidative enzymes of by-products were inactivated during drying at 90℃ for 36 h, the color parameter indicated that the flours should be dried at 60℃. The median sheath flour had a lower content of oxalic acid and tannins than the stem flour, but similar content of phytic acid.

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“…Brazil is the world largest producer and consumer of palm heart with an annual production of 103,419 t, mostly from açaí (Euterpe oleracea) and juçara [(Euterpe edulis) (Galdino & Clement, 2008)]. Among the advantages of peach palm, in comparison to other species, are precocity of cutting, good productivity, good tillering, rusticity, and no enzymatic darkening (Kalil Filho et al, 2010).…”

Section: Introductionmentioning

confidence: 99%

Analysis of the genetic variability of peach palm (Bactris gasipaes) in the Yurimáguas region, Peru, using molecular RAPD markers

Silva¹,

Rodrigues

Clement

et al. 2018

Científica

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Molecular markers were used to verify the existence of one or more primitive peach palm landraces, including Pampa Hermosa, in the microregion near Yurimáguas, Peru. This region provides the highest amount of seeds for peach palm heart agribusinesses in Brazil. In this analysis, we used 120 peach palm plants (Bactris gasipaes var. gasipaes) from four river basins around Yurimáguas. We used six primers, generating 73 RAPD markers. The heterozygosity ranged from 0.29 to 0.31, with a mean of 0.32, and the percentage of polymorphism ranged from 80.8 to 86.6, with a mean of 90.4. The dendrogram, based on Jaccard Similarity, presented eight groups, but it did not present groups formed by the water basins. The average gene flow was high, ranging from 11.41 to 18.89, as expected for populations within a same landrace. The analysis of the genetic diversity in this set of plants showed a common genetic basis among the plants. Nei's Genetic Distances were low, varying between 0.012 and 0.027. This suggests that such populations are very similar to each other, and that there is only one landrace in the region. Therefore, we propose the existence of only one landrace in the Yurimáguas region and the name "Pampa Hermosa" should be adopted.Additional keywords: gene flow; genetic analysis; genetic distances; primitive landraces. ResumoMarcadores moleculares foram utilizados para verificar a existência de uma ou mais raças primitivas de pupunha, além de Pampa Hermosa, na microrregião próxima de Yurimáguas, Peru, que fornece a maioria das sementes para o agronegócio de palmito de pupunha no Brasil. Nesta análise, foram utilizadas 120 plantas de pupunha (Bactris gasipaes var. gasipaes) de quatro bacias hidrográficas ao redor de Yurimáguas. Seis iniciadores foram utilizados, gerando 73 marcadores RAPD. A heterozigosidade variou de 0,29 a 0,31, com média de 0,32, e a porcentagem de polimorfismo variou de 80,8 a 86,6, com média de 90,4. O dendrograma baseado nas Similaridades de Jaccard apresentou oito grupos, porém sem apresentar grupos definidos com base nas bacias hidrográficas. O fluxo gênico médio foi alto, variando de 11,41 a 18,89, como esperado para populações dentro de uma raça. A análise da diversidade genética nesse conjunto de plantas mostrou uma base genética comum entre essas plantas. As Distâncias Genéticas de Nei foram muito pequenas, variando de 0,012 a 0,027, sugerindo que essas populações são muito similares entre si e que existe uma só raça na região. Portanto, foi proposta a existência de apenas uma raça na região de Yurimáguas, e o nome Pampa Hermosa deve ser conservado.Palavras-chave adicionais: análise genética; distâncias genéticas; fluxo gênico; raças primitivas.

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Palmito de pupunha (Bactris gasipaes Kunth.) composição mineral e cinética de enzimas oxidativas

Cited by 17 publications

References 6 publications

Peach Palm (Bactris gasipaes kunth) Characterization and the Potential of by-Products Flour Processing

Analysis of the genetic variability of peach palm (Bactris gasipaes) in the Yurimáguas region, Peru, using molecular RAPD markers

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