|
|
|
| Registros recuperados: 42 | |
|
|
| Fuentealba,Claudia; Pedreschi,Romina; Hernández,Ignacia; Saavedra,Jorge. |
| C. Fuentealba, R. Pedreschi, I. Hernández, and J. Saavedra. 2016. A statistical approach for assessing the heterogeneity of Hass avocados subjected to different postharvest abiotic stresses. Cien. Inv. Agr. 43(3):356-365. Hass avocado (Persea americana Mill.) is marketed worldwide. Due to its complex physiology, a wide variability in postharvest ripening can be observed, i.e., heterogeneity in the number of days to reach edible ripeness. There is a need for a simple and objective method for evaluating the efficacy of postharvest treatments in the reduction of this postharvest ripening heterogeneity given the high demand of import countries for consistent quality and product homogeneity. Therefore, the aim of this study was to compare the appropriateness of... |
| Tipo: Journal article |
Palavras-chave: Avocados; Heterogeneity; Multiple comparison; Ripening; Standard deviation. |
| Ano: 2016 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202016000300002 |
| |
|
| |
|
|
| Yang,FW; Feng,XQ. |
| Abscisic acid (ABA) plays a series of significant physiology roles in higher plants including but not limited to promote bud and seed dormancy, accelerate foliage fall, induce stomatal closure, inhibit growth and enhance resistance. Recently, it has been revealed that ABA also has an important regulator role in the growth, development and ripening of fruit. In higher plants ABA is produced from an indirect pathway from the cleavage products of carotenoids. The accumulation of endogenous ABA levels in plants is a dynamic balance controlled by the processes of biosynthesis and catabolism, through the regulation of key ABA biosynthetic gene and enzyme activities. It has been hypothesized that ABA levels could be part of the signal that trigger fruit ripening,... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Abscisic acid (ABA); Biosynthesis; Catabolism; Regulation; Fruit; Ripening. |
| Ano: 2015 |
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1851-56572015000200025 |
| |
|
|
| Hegedüs,Attila; Pfeiffer,Péter; Papp,Nóra; Abrankó,László; Blázovics,Anna; Pedryc,Andrzej; Stefanovits-Bányai,Éva. |
| Two apricot genotypes, 'Gonci magyarkajszi' and 'Preventa' were assayed at three ripening stages for flesh color indices (L*, a*, b*, C* and Hº), contents of total phenolics and vitamin C, and both water- and lipid-soluble antioxidant capacities (ferric reducing antioxidant power; 2,2'-diphenyl-1-picrylhydrazyl scavenging activity; total radical scavenging activity; and Photochem lipid-soluble antioxidant capacity) to compare their dynamics in the accumulation of antioxidant compounds and capacities through ripening. The increase in a*, b* and C* and decrease in Hº during ripening represented a color shift from green to yellow and orange due to carotenoid accumulation. Parallel to carotenoid accumulation, contents of total phenolics and vitamin C and... |
| Tipo: Journal article |
Palavras-chave: Antioxidant capacity; Apricot; Color; Ripening; Total polyphenolic content; Vitamin C. |
| Ano: 2011 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-97602011000400004 |
| |
|
|
| Balois-Morales,Rosendo; Jiménez-Zurita,José Orlando; Alia-Tejacal,Irán; López-Guzmán,Graciela Guadalupe; Palomino-Hermosillo,Yolotzin Apatzingán; Sánchez-Herrera,Leticia Mónica. |
| Abstract The changes in concentration of vitamin C, enzymatic and antioxidant activity during the ripening of two soursop selections (G1 and G2) at room temperature (22 ºC) and refrigeration (15 ºC) with an HR 85% were evaluated. The content of soluble protein, the activity of catalase (CAT), superoxide dismutase (SOD), peroxidase (POD), the concentration of vitamin C, as well as the antioxidant activity was evaluated by DPPH, ABTS and FRAP methods. The initial soluble protein concentration of the G1 and G2 selections diminished at 22 and 15 °C during ripening. Fruits stored at 22 °C showed the highest CAT activity. The maximum activity of SOD was recorded on the sixth and fourth day in fruits stored at 22 and 15 ºC, respectively. Fruits stored at 22 °C... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Annona muricata; Ripening; Enzymatic activity; Antioxidant activity; Refrigeration. |
| Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452019000100303 |
| |
|
|
| 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 |
| |
|
|
| P, Rajkumar; C, Dr. Indu Rani; N, Dr.Wang; G.S.V, Dr. Raghavan. |
| A study was undertaken to classify the banana fruits based on their ripening/maturity by using zNose flavour detection technique. The quality parameters of banana fruits viz., respiratory quotient (RQ), total soluble solids (TSS), moisture content and firmness at each ripening/maturity stage were determined and the results were correlated with zNose flavour data. The principal component analysis (PCA) was used to identify the ripening/maturity stages of banana fruits and also to test the variability of the observed data. By using multiple linear regression (MLR), models were established to predict the fruit quality parameters. The coefficient of determination (r2) corresponding to the predicted respiratory quotient, total soluble solids, moisture content... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: E-Nose/Z-Nose; Banana fruits; Maturity; Ripening; PCA; MLR. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3359 |
| |
|
|
| Hernández, A.; de Hombre, R.; Díaz, J. A.. |
| Este trabajo tuvo como objetivo determinar el comportamiento del perfil de textura en el queso cubano Patagrás durante su maduración y la influencia que ejercen su tamaño y la temperatura de maduración en dichas propiedades. Se utilizaron quesos de forma cilíndrica de 4 y 10 kg de peso. Los quesos se maduraron a 10 ± 1 ºC y 14 ± 1 ºC y se tomaron muestras a los 30, 60 y 90 días de maduración, para analizar el perfil de textura con el texturómetro INSTRON. Se concluyó que durante la maduración del queso aumentan la dureza y la fragilidad, mientras que disminuyen la elasticidad y la cohesividad. Para los quesos de 10 kg no se recomienda realizar el proceso a la temperatura de maduración de 10 ± 1 ºC, ya que sus propiedades texturales no alcanzan valores... |
| Tipo: Journal Contribution |
Palavras-chave: Temperature; Textural soil types; Ripening. |
| Ano: 2008 |
URL: http://hdl.handle.net/1834/4875 |
| |
|
|
| Martins,José M.; Galinari,Éder; Pimentel-Filho,Natan J.; Ribeiro Jr,José I.; Furtado,Mauro M.; Ferreira,Célia L.L.F.. |
| Physical, physicochemical, and microbiological changes were monitored in 256 samples of artisanal Minas cheese from eight producers from Serro region (Minas Gerais, Brazil) for 64 days of ripening to determine the minimum ripening time for the cheese to reach the safe microbiological limits established by Brazilian legislation. The cheeses were produced between dry season (April–September) and rainy season (October–March); 128 cheeses were ripened at room temperature (25 ± 4 °C), and 128 were ripened under refrigeration (8 ± 1 °C), as a control. No Listeria monocytogenes was found, but one cheese under refrigeration had Salmonella at first 15 days of ripening. However, after 22 days, the pathogen was not detected. Seventeen days was the minimum ripening... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ripening; Artisanal Minas cheese; Serro; Pathogen; Lactic acid bacteria. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822015000100219 |
| |
|
| |
|
| |
|
| |
|
|
| STEFFENS,CRISTIANO ANDRÉ; AMARANTE,CASSANDRO V.T. DO; ALVES,ERLANI O.; BRACKMANN,AURI. |
| The objective of this study was to evaluate the effect of controlled atmosphere (CA) on quality preservation of ‘Laetitia’ plums, mainly on internal breakdown, in order to determine the best CA storage conditions. Two experiments were carried out one in 2010, and another in 2011. In 2010, besides cold storage (CS; 21.0 kPa O2 + 0.03 kPa CO2), the fruits were stored under the following CA conditions (kPa O2+kPa CO2): 1+3, 1+5, 2+5, 2+10, and 11+10. In 2011, the fruits were stored under CS and CA of 1+0, 1+1, 2+1, and 2+2. The fruit stored under different CA conditions had lower respiration and ethylene production, better preservation of flesh firmness, texture and titratable acidity, lower skin red color, and lower incidence of skin cracking than the fruit... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Prunus salicina; Postharvest; Ripening; Physiological disorder. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652014000100485 |
| |
|
|
| Mena-Violante,Hortencia G.; Cruz-Hernández,Adrés; Paredes-López,Octavio; Gómez-Lim,Miguel Á.; Olalde-Portugal,Víctor. |
| Bacillus subtilis BEB-13bs, a plant growth promoting rhizobacteria, has improved tomato firmness. Since firmer fruits are be expected to be more resistant to spoilage microorganisms and to have a longer shelf-life, root inoculation with this strain could be an alternative to extend tomato shelf-life. Thus, fruit texture-related changes were studied in tomato plants (Lycopersicon esculentum Mill.) inoculated with Bacillus subtilis BEB-13bs. Treatments were: 1) non-inoculated control treatment (CTL); 2) PGPR inoculated treatment (BS13). Evaluation was made at different ripening stages. Pericarp firmness and activity of poligalacturonase (PG), the major cell wall polyuronide degrading enzyme in tomato, were measured. The expression pattern of ripening-related... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lycopersicon esculentum; Aco gene expression; Firmness; PG activity; Quality; Ripening. |
| Ano: 2009 |
URL: http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S1405-31952009000600001 |
| |
|
| |
|
| |
|
|
| Neves,Valdir Augusto. |
| Soluble, ionically bound peroxidase (POD) and polyphenoloxidase (PPO) were extracted from the pulp of peach fruit during ripening at 20°C. Ionically bound form was purified 6.1-fold by DEAE-cellulose and Sephadex G-100 chromatography. The purified enzyme showed only one peak of activity on Sephadex G-100 and PAGE revealed that the enzyme was purified by the procedures adopted. The purified enzyme showed a molecular weight of 29000 Da, maximum activity at pH 5.0 and at 40ºC. The calculated apparent activation energy (Ea) for the reaction was10.04 kcal/mol. The enzyme was heat-labile in the temperature range of 60 to 75ºC with a fast inactivation at 75ºC. Measurement of residual activity showed a stabilizing effect of sucrose at various temperature/sugar... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Peach peroxidases; Ripening; Purification; Kinetics; Heat stability. |
| Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132002000100002 |
| |
|
|
| Falcão,Leila D; Chaves,Eduardo S; Burin,Vivian M; Falcão,Ana Paula; Gris,Eliana F; Bonin,Valdir; Bordignon-Luiz,Marilde T. |
| The wine grape (Vitis vinifera) cv. Cabernet Sauvignon has recently been introduced at a 1160 m altitude in the São Joaquim área (Santa Catarina State, Southern Brazil). The aim of this work was to evalúate the maturation of Cabernet Sauvignon grapes subjected to a Y training system or a vertical shoot positioning trellis (VSP). Grapes were sampled at 10-day intervals throughout their maturation during two consecutive vintage years (2004-2005 and 2005-2006). Climate data were assessed. Based on the results obtained in both vintage years at maturity, titratable acidities (TA) ranged from 0.67 to 0.85 g-100 mL-1 of tartaric with the pH fluctuating between 3.49 and 3.77. The maturation Índex (total soluble solids/TA) at maturity ranged from 26 to 35, and was... |
| Tipo: Journal article |
Palavras-chave: Cabernet Sauvignon grape; Ripening; Mesoclimate; Vertical shoot positioning trellis; Y system. |
| Ano: 2008 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202008000300010 |
| |
|
|
| Pérez Prado, José Adán. |
| El plátano es el frutal en segundo lugar en importancia económica en México, el 95% se destina al consumo nacional y el 5% restante a la exportación. No obstante, las pérdidas por manejo postcosecha justifican buscar métodos para conservarlo. El plátano presenta cambios en volumen debido al intercambio de calor y masa, por lo que decrece su superficie bajo la contracción de los tejidos por pérdida parcial de agua. En consecuencia, todos los parámetros que dependen de cambios de dimensión interna y externa, requieren del uso de modelos de simulación mediante curvas de secado que nos permitan describir dicho comportamiento en los alimentos. Por lo anterior, el presente trabajo presenta una serie de modelos de regresión (exponencial, lineal, logarítmico y... |
|
Palavras-chave: Acido cítrico; Enzimas; Obscurecimiento; Harina; Madurez; Citric acid; Enzyme; Darkening; Flour; Ripening; Maestría Tecnológica; Agroindustria. |
| Ano: 2010 |
URL: http://hdl.handle.net/10521/331 |
| |
|
| |
| Registros recuperados: 42 | |
|
|
|
