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| Mariutti,Lilian Regina Barros; Barreto,Gisela Pizarro de Mattos; Bragagnolo,Neura; Mercadante,Adriana Zerlotti. |
| Ethanolic extracts from 23 different dried herbs and spices commercialized in Brazil were investigated for their free radical scavenging properties using the stable free radicals 2,2'-diphenyl-β-picrylhydrazyl (DPPH•) and 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid) (ABTS•+), and Trolox as reference (TEAC) for both radicals. The kinetic curves for both radicals showed to follow the first order kinetics model and the decay rate constant (k obs) was calculated. For all the samples, the two methods showed a good linear TEAC correlation, indicating that the average reactivity of the compounds present in the ethanolic extracts was similar. Sage and rosemary extracts showed the highest free radical scavenging capacities, while onion showed negligible... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antioxidant activity; Free radical scavenging activity; DPPH; ABTS; Herbs; Spices; Colorifico. |
| Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000600018 |
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| Hasegawa,Patrícia Nagai; Faria,Adelia Ferreira de; Mercadante,Adriana Zerlotti; Chagas,Edvan Alves; Pio,Rafael; Lajolo,Franco Maria; Cordenunsi,Beatriz Rosana; Purgatto,Eduardo. |
| Loquat is a fruit with high market value cultivated in Southeast Brazil. Despite of this, there are little details about its quality characteristics. Fruits from five loquat cultivars, developed using genetic breeding, were analyzed to assess their compositional traits. The cultivars Centenária, Mizuho, Mizumo, Néctar de Cristal and Mizauto were selected based on their high productivity and resistance to diseases. Soluble sugars, organic acids, and carotenoids were quantified using liquid chromatography. The cultivar (cv.) with the highest total sugar concentration was Mizumo and the lowest concentration was found in Centenária. The main sugar detected was sucrose, and the malic acid was the major organic acid. Ascorbic acid was detected in small amounts.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ripening; Eriobotrya japonica; Genetic breeding; Β-carotene. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612010000200040 |
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| Kubo,Mirian Tiaki Kaneiwa; Maus,Diogo; Xavier,Ana Augusta Odorissi; Mercadante,Adriana Zerlotti; Viotto,Walkiria Hanada. |
| The consumption of lutein is associated with the prevention and reduction of age-related macular degeneration. Its incorporation into Prato cheese as a yellowish food coloring is a valid alternative to increase the daily intake of this compound. However, part of the lutein added may be lost in the whey during the cheese making, or it can be degraded by light during storage, resulting in color changes reducing the sensory acceptance of the cheese. The objectives of this study were to determine the transference of the lutein (dye), added to the milk, in the whey, and cheese, to evaluate the effect of the lutein addition, light exposure, and storage time on the cheese color, and to verify the sensory acceptance of Prato cheese with addition of lutein. The... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lutein; Prato cheese; Color. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612013000500013 |
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| Vissotto,Lizziane Cynara; Rodrigues,Eliseu; Chisté,Renan Campos; Benassi,Marta de Toledo; Mercadante,Adriana Zerlotti. |
| The contents of total phenolic compounds (TPC), total flavonoids (TF), and ascorbic acid (AA) of 18 frozen fruit pulps and their scavenging capacities against peroxyl radical (ROO), hydrogen peroxide (H2O2), and hydroxyl radical (OH) were determined. Principal Component Analysis (PCA) showed that TPC (total phenolic compounds) and AA (ascorbic acid) presented positive correlation with the scavenging capacity against ROO, and TF (total flavonoids) showed positive correlation with the scavenging capacity against OH and ROO However, the scavenging capacity against H2O2 presented low correlation with TF (total flavonoids), TPC (total phenolic compounds), and AA (ascorbic acid). The Hierarchical Cluster Analysis (HCA) allowed the classification of the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bioactive compounds; Antioxidant capacity; Fruit pulp. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612013000500010 |
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| Ferreira,Daniela Souza; Rosso,Veridiana Vera de; Mercadante,Adriana Zerlotti. |
| A amora-preta (Rubus spp.), pequena fruta de clima temperado, possui coloração atraente, variando do vermelho púrpura ao azul, devido ao elevado teor de antocianinas. As antocianinas, juntamente com os carotenoides, compõem os pigmentos naturais, majoritários encontrados em diversas frutas. Diversos estudos têm relatado a importância destes pigmentos naturais como protetores e/ou inibidores de doenças degenerativas, porém são escassos os estudos sobre compostos bioativos presentes em amora-preta cultivada no Brasil. Os objetivos do presente estudo foram identificar as antocianinas e os carotenoides presentes em amora-preta, determinar os conteúdos totais de compostos fenólicos, carotenoides, flavonoides, antocianinas totais, monoméricas, poliméricas e... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Pigmentos; Antocianinas; Compostos fenólicos; Carotenoides; Atividade antioxidante. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452010000300004 |
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