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Antioxidant properties, quantification and stability of betalains from pitaya (Hylocereus undatus) peel Ciência Rural
Mello,Fernanda Robert de; Bernardo,Claudia; Dias,Caroline Odebrecht; Gonzaga,Luciano; Amante,Edna Regina; Fett,Roseane; Candido,Lys Mary Bileski.
Pitaya peel can be used as a raw material for betalains extraction. The aim of this research was to quantify phenolic compounds, antioxidant activity and betalains on pitaya peel. Furthermore, evaluate the betalains stability against various pH conditions and exposure time of heating. The results showed that pitaya peel contains phenolic compounds and presented antioxidant activity. Moreover it showed high concentration of betalains (101.04mg equivalent to betanin. 100g-1) which were stable over a wide pH range (3.2 - 7.0) and were resistant to heating (100oC) up to 10 minutes at pH range from 3.7 to 5.5. Therefore, pitaya peel is a promising source of betalains which can be applied as a natural colorant for food.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Betalains; Antioxidant activity; Colorant; Phenolic compounds.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000200323
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Cascas da pitaya é fonte promissora de betalaínas Ciência Rural
Amante,Edna Regina.
Tipo: Info:eu-repo/semantics/other
Ano: 2020 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015010300001
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Characteristics of cassava starch fermentation wastewater based on structural degradation of starch granules Ciência Rural
Pereira,Juliane Mascarenhas; Aquino,Ana Carolina Moura de Sena; Oliveira,Daiana Cardoso de; Rocha,Gabriela; Francisco,Alícia de; Barreto,Pedro Luiz Manique; Amante,Edna Regina.
ABSTRACT: Sour cassava starch is a naturally modified starch produced by fermentation and sun drying, achieving the property of expansion upon baking. Sour cassava starch' bakery products can be prepared without the addition of yeast and it is gluten free. The fermentation process associated with this product has been well studied, but the wastewater, with high acidity and richness in other organic compounds derived from starch degradation, requires further investigation. In this study, the structure of solids present in this residue was studied, seeking to future applications for new materials. The solids of the wastewater were spray dried with maltodextrin (MD) with dextrose equivalent (DE) of 5 and 15 and the structure of the powder was evaluated by...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sour cassava starch; Fermentation; Water; Microstructure.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000400732
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Chemical composition of flours made of residues from the king palm (Archontophoenix alexandrae) industry BABT
Vieira,Manoela Alano; Podestá,Rossana; Tramonte,Karina Cardoso; Amboni,Renata Dias de Mello Castanho; Simas,Karina Nunes de; Avancini,Sandra Regina Paulon; Amante,Edna Regina.
Residues from King palm (Archontophoenix alexandrae) processing were used for the production of flours, which were then chemically characterized. The protein content in these flours ranged from 3.62 to 9.75 g/100g and was higher in sifted leaf flour (SLF). The dietary fiber contents varied from 64 to 72 g/100g. These values were high when compared to those of flours used in human nutrition. Analysis of anti-nutritional factors showed phytate contents to be below the levels that affected the bioavailability of minerals in human diet. Tannin contents were compatible with those found in legumes, between 0 and 2000 mg/100g. These flours showed high mineral content, which suggested a possibility for them to be used as food supplement. However, the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Archontophoenix alexandrae; Residues; Flour; Chemical analysis.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000400021
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Efeito do cultivo orgânico e convencional sobre a vida-de-prateleira de alface americana (Lactuca sativa L.) minimamente processada Ciênc. Tecnol. Aliment.
Mello,Júlio César; Dietrich,Renato; Meinert,Elza Maria; Teixeira,Evanilda; Amante,Edna Regina.
A alface americana (Lactuca sativa), minimamente processada, foi avaliada quanto aos efeitos dos diferentes sistemas de cultivo (orgânico e convencional), sobre a vida-de-prateleira. A alface minimamente processada foi embalada em sacos de polietileno de baixa densidade (PEBD), armazenada em refrigerador a 4ºC e avaliada até o final da vida-de-prateleira, estabelecida por métodos sensoriais. As avaliações foram realizadas durante a estocagem, nas condições pré-estabelecidas. Nos tempos zero a dez dias, uma equipe sensorial treinada avaliou a alface quanto a: cor, brilho, escurecimento enzimático, aroma, odor estranho, textura e sabor (escores de zero a dez). O teste sensorial determinou que o escore seis (6) eliminaria a amostra; a alface orgânica, atingiu...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Alface; Vida-de-prateleira; Cultivo orgânico; Cultivo convencional.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612003000300022
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Effect of the improved fermentation on physicochemical properties and sensorial acceptability of sour cassava starch BABT
Marcon,Maria Janete Angeloni; Vieira,Gisele Cristina Netto; Simas,Karina Nunes de; Santos,Karina; Vieira,Manoela Alano; Amboni,Renata Dias de Mello Castanho; Amante,Edna Regina.
The aim of this work was to study the effect of improved fermentation on sour cassava starch, aiming to reduce its fermentation time and to enhance its expansion capacity as well as its viscoamylographic properties and its sensorial acceptability. Results showed that the improved process of cassava starch production did not harm starch expansion, physicochemical properties or sensorial acceptability; it also produced starches with different viscoamylographic properties, which compared favourably to those of the sour cassava starch produced through current industrial methods.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Sour cassava starch; Expansion; Viscosity; Sensorial acceptability.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000700018
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Identification of volatile compounds in thinning discards from plum trees (Prunus salicina Lindl.) cultivar Harry Pickstone Ciênc. Tecnol. Aliment.
Podestá,Rossana; Pagliosa,Cristiane Manfé; Vieira,Manoela Alano; Provesi,João Gustavo; Amante,Edna Regina; Zeni,Ana Lúcia Bertarello; Raitz,Ismael; Rebelo,Ricardo Andrade.
Plum (Prunus salicina Lindl. cv. Harry Pickstone), a China indigenous fruit, is widely produced and consumed in countries such as Japan and Brazil. The practice of thinning is common in horticulture and the fruits removed are discarded as waste. Like the great majority of vegetables, these thinning discards also contain essential oils which have not been investigated until the present time. The extraction of the plum thinning discards volatile oil, through the hydrodistillation method, produced a yield of 0.06% (m/m) and a total of 21 components were identified, with 11 of them being responsible for 72,9% of the total oil composition. The major compounds determined through GC and GC-MS were Z-α-bisabolene (13.7%), n-hexadecanoic acid (12.7%), phytol...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Plum; Thinning; Essential oils.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612011000300024
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Nutritional potential of green banana flour obtained by drying in spouted bed Rev. Bras. Frutic.
Bezerra,Carolina Vieira; Rodrigues,Antonio Manoel da Cruz; Amante,Edna Regina; Silva,Luiza Helena Meller da.
This study evaluated the chemical composition of peeled and unpeeled green banana Cavendish (AAA) flour obtained by drying in spouted bed, aiming at adding nutritional value to food products. The bananas were sliced and crushed to obtain a paste and fed to the spouted bed dryer (12 cm height and T = 80 ºC) in order to obtain flour. The flours obtained were subjected to analysis of moisture, protein, ash, carbohydrates, total starch, resistant starch, fiber. The green banana flours, mainly unpeeled, are good sources of fiber and resistant starch with an average of 21.91g/100g and 68.02g/100g respectively. The protein content was found in an average of 4.76g/100g, being classified as a low biological value protein with lysine as the first limiting amino...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Green banana; Flour; Starch; Fiber; Spouted bed.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452013000400025
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Protein profile in freeze-dried chicken embryo eggs with different periods of development Braz. J. Vet. Res. Anim. Sci.
Campos,Célia Maria Teixeira de; Hamad,Antônio José Simões; Amante,Edna Regina; Thapon,Jean-Louis; Nau,Françoise; Guerin-Dubiard,Catherine.
This article presents the protein profile in freeze-dried chicken embryo eggs with different development periods (0, 3, 5, 7, 9, 11 days). The protein profile was determined through HPLC-reverse phase, electrophoresis SDS-PAGE and IFE-electrophoresis. Protein profile of these eggs changes according to the period of development and the change is more evident after the 5th day, where there was an increase in ovalbumin, ovotransferrin, apoLDL, apoHDL and lysozyme concentration, and a decrease in ovomucin and ovostatin concentration. The hypothesis that the change in the protein profile is due to protein biosynthesis and disintegration that happens during incubation process is discussed.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Embryo eggs; Protein profile.
Ano: 2003 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962003000700001
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