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| Registros recuperados: 96 | |
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| Lins,Analha D. F.; Rocha,Ana P. T.; Gomes,Josivanda P.; Feitosa,Regilane M.; Araujo,Gilmar T.; Santos,Dyego da C.. |
| ABSTRACT Red mombin is a seasonal fruit and susceptible to degradation reactions due to its high water content. This highlights the need to use processes that prolong its life and make it available all year round, including to markets away from the production sites. Thus, the objective of this study was to produce red mombin pulp powder in spouted bed dryer, evaluate it regarding physical and chemical parameters and assess its hygroscopic behavior at temperatures of 20, 30 and 40 °C, fitting the models of the GAB, Oswin and Peleg to the experimental data. The results of the physical and chemical analyses showed intermediate wetting time of 0.39 g min-1, solubility higher than 60% and mean flowability with Hausner ratio and Carr index of 1.26-1.34 and... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Spondias purpurea L.; Drying; Hygroscopicity. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662017000800562 |
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| Kaur, Kulwinder; Kumar, Satish; Alam, Mohammad Shafiq. |
| The study on osmotic pretreatment of oyster mushrooms was carried out in order to remove the moisture prior to further mechanical drying. Three salt concentration level (10, 15 and 20 g/100 g), two temperature levels of osmotic solution (30 and 45°C) and constant solution to mushroom ratio of 10 (w/v) were selected and the observations on water loss and solid gain were taken at an interval of 30 min up to 300 min. The osmotically pretreated samples were further dried up to its equilibrium moisture content in a tray drier at 60°C and experimental data were fitted successfully using Page and Henderson & Pabis model. The osmo-convective dehydrated samples were evaluated for its quality parameters i.e. color (L, a, b, ∆E, C* and h°), rehydration ratio... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Oyster mushrooms; Osmotic dehydration; Water loss; Solid gain; Drying; Quality. |
| Ano: 2014 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/2831 |
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| Castro,Alejandra; Caballero,Maciel; Herbas,Adelina; Carballo,Sergio. |
| Yacon (Smallanthus sonchifolius (Poepp. and Endl.) H. Robinson) is a storage root originally grown in the Andean highlands. The fresh roots are perishable and quickly turn brown during handling and processing. Aiming to prolong shelf-life and to preserve the antioxidant compounds in yacon roots, 3 mm thick yacon slices were dried in a drying cabinet at 40, 50, and 60 ºC to a moisture content of 10-14%, and yacon strips were sun dried to a moisture content of 15-20%. The total phenolic content was measured by the Folin-Ciocalteu method, and the quenching capacity was evaluated by measuring the amount of DPPH (1,1-diphenyl-2-pidrylhydrazyl) inhibited in samples after drying and after 7 months of storage. The results showed that it is possible to preserve the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Yacon; Phenolic content; Drying; Storage; Antioxidant capacity. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612012000300003 |
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| Basunia, Mohammad Ali. |
| Three commonly cited models for drying of agricultural products i.e. Page, Approximate form of diffusion, and Exponential were compared for their ability to the fit the experimental drying data of whole limes based on the root mean square error of estimate (RMSE) of the measured and simulated moisture contents. The comparison shows the Page model is the most suitable model having average RMSE = 0.046 wet-basis (decimal) while the Approximate form of diffusion and the Exponential models have 0.132 and 0.128 wet-basis (decimal), respectively. This indicated that the Approximate form of diffusion and the Exponential models both have less fitting ability then the Page model for the entire period (> 7 days) of drying in 30 tests at different... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Best-fitted; Mathematical model; Whole limes; Drying. |
| Ano: 2021 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/6911 |
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| DRESCH,DAIANE M.; MASETTO,TATHIANA E.; SCALON,SILVANA P.Q.. |
| The aim of this study was to evaluate the sensitivity of Campomanesia adamantium seeds to desiccation by drying in activated silica gel (fast) and under laboratory conditions (slow). To assess the sensitivity of the seeds to desiccation, we used drying with silica gel and drying under laboratory conditions (25 °C), in order to obtain seeds with moisture content of 45, 35, 30, 25, 20, 15, 10 and 5%. The physiological potential of the seeds after desiccation was evaluated by measuring primary root protrusion, percentage of normal seedlings, germination seed index, seedling length, total seedling dry mass, electrical conductivity and DNA and RNA integrities. The C. adamantium seeds were sensitive to desiccation and to a reduction in moisture content to 21.1%... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cerrado; DNA; Drying; RNA; Viability. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652015000502217 |
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| José,Anderson C.; Ligterink,Wilco; Davide,Antonio Claudio; Silva,Edvaldo A. Amaral da; Hilhorst,Henk W.M.. |
| Seeds of Magnolia ovata were dried to different water contents to assess the viability and transcript abundance of genes related to seed development, cell cycle, cytoskeleton and desiccation tolerance.The expression of development, cell cycle and cytoskeleton relative genes (ABI3, CDC2-like and ACT2) alone could not explain the germination behaviour of M. ovata seeds in relation to drying damage. Irrespective of their initial water content, the seeds performed in the same way during the initial period of germination and the deleterious effects of desiccation only occurred in later stages. Expression of PKABA1, sHSP17.5 and 2-Cys-PRX did not show a relationship with desiccation. However, the expression patterns of PKABA1 and sHSP17.5 suggested the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Desiccation tolerance; Drying; Gene expression; Magnolia ovata. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222009000100030 |
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| Silva,Andréia Souto da; Oliveira,Edson Leandro de; Santos,Everaldo Silvino dos; Oliveira,Jackson Araújo de. |
| The caja (Spondias mombin L.) is used in the manufacture of ice-cream, jams, pulps, beverages being also consumed in natura. One of the most important procedures in food conservation is drying, considering that most fresh fruits contain approximately 80% of water. Food drying is used to obtain two basic aspects: (1) the economic factor; in the shipping and handling of the product; (2) at the manipulation; once dried and grinded, the material is rehydrated, at desirable levels, to formulate a new product as in ice cream, jams, yoghurts and drinks and may also be added to pasta, biscuits and other industrialized products. The aim of this study was to investigate the kinetics of caja bagasse drying in a fixed-bed tray dryer, using central composite factorial... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caja; Fruit bagasse; Drying; Factorial planning. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452012000100032 |
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| CARNEIRO,NÁRGELLA S.; ALVES,CASSIA C.F.; ALVES,JOSÉ M.; EGEA,MARIANA B.; MARTINS,CARLOS H.G.; SILVA,THAYNÁ S.; BRETANHA,LIZANDRA C.; BALLESTE,MAIRA P.; MICKE,GUSTAVO A.; SILVEIRA,EDUARDO V.; MIRANDA,MAYKER L.D.. |
| ABSTRACT Many essential oils (EOs) of different plant species possess interesting antimicrobial effects on buccal bacteria and antioxidant properties. Eugenia klotzschiana Berg (pêra-do-cerrado, in Portuguese) is a species of Myrtaceae with restricted distribution in the Cerrado. The essential oils were extracted through the hydrodistillation technique using a modified Clevenger apparatus (2 hours) and chemically characterized by GC-MS. The major compounds were α-copaene (10.6 %) found in oil from leaves in natura, β-bisabolene (17.4 %) in the essential oil from dry leaves and α-(E)-bergamotene (29.9 %) in oil from flowers. The antioxidant activity of essential oils showed similarities in both methods under analysis (DPPH and ABTS˙+) and the results... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antioxidant activity; Antibacterial activity; Brazilian pear; Drying; Eugenia klotzschiana; Sesquiterpenes. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401907 |
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| Pereira,Wilson Vicente Souza; Faria,José Márcio Rocha; Tonetti,Olivia Alvina Oliveira; Silva,Edvaldo Aparecido Amaral da. |
| This study was aimed at evaluating the desiccation sensitivity in seeds of the tree Tapirira obtusa (Benth.) J. D. Mitchell collected from three different environments and subjected to two distinct drying speeds. Seeds were collected from a rocky area, in the "Cerrado", and in a riparian forest area, in the region of municipality of Lavras, State of Minas Gerais. The seeds were subjected to drying with magnesium chloride (slow drying) or silica gel (fast drying), into closed environment, until moisture contents of 40%, 30%, 20% and 10%, considering as control, the percentage of germination at the initial moisture content in each environment, which varied from 47% to 50%. Percentages of germination and normal seedlings as well as germination speed index... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Drying; Germination; Sensitivity; Dehydration. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-31222012000300005 |
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| Valente,Maria da Conceição da Costa; Nascimento,Rafael Alves do; Santana,Elza Brandão; Faria,Lênio José Guerreiro de; Costa,Cristiane Maria Leal. |
| ABSTRACT Sorption isotherms of flaxseeds were determined by static gravimetric method at temperatures 40, 60, and 80 ºC, over a relative moisture range of 10-95%. Six mathematical models were applied to analyze the experimental data. The modified GAB model showed the best fitting to the experimental data. The isosteric heat and differential entropy were determined by applying the Clausius-Clapeyron and Gibbs-Helmholtz equations, respectively. The isosteric heat and the entropy of desorption isotherm presented similar behavior, with a sharp change of 10% in the equilibrium moisture content. The enthalpy-entropy compensation theory was applied to the isotherms, indicating that they are enthalpy-controlled. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Equilibrium moisture content; Drying; Isosteric heat. |
| Ano: 2020 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902020000200401 |
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| amjad, waseem; Munir, Anjum; Sturm, Barbara. |
| Lack of accurate information for the drying kinetics is the main barrier to optimize drying processes effectively. Online monitoring of drying data is not common due to practical issues involved in set-up application. In this study an imaging system was developed for large drying units to investigate the quality changes (color kinetics and shrinkage) combine with weight loss of food product spatially and non-destructively during convective drying. The imaging setup was used in a diagonal-airflow batch dryer and shifted along the dryer length to take data (food images and weight loss) at different positions using potato slices (5mm thick, 60°C) as drying material. First order model fitted well to value of ∆L* and ∆b* while ∆a* and ∆E fitted in zero order... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Image processing; Real time data; Drying. |
| Ano: 2020 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/5985 |
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| Deamici,Kricelle Mosquera; Oliveira,Lucas Carvalho de; Rosa,Gabriela Silveira da; Zavareze,Elessandra da Rosa; Oliveira,Elizangela Gonçalves de. |
| Abstract The aim of this study was to evaluate the potential use of dry grape marc obtained of drying and milling operations with parboiled rice bran for cookies production. By-products were characterized with respect to moisture content, proteins, lipids, carbohydrates, fiber, and ashes, besides the analysis of absorption index, solubility in water and acidity. The proposed formulations were prepared by varying the amount of by-products to replace wheat flour. Elaborate cookies were subjected to microbiological and sensory analysis. The formulation with greater acceptance contained 5% of flour grape marc and 10% of parboiled rice bran. The physicochemical characterization of the cookies with greater acceptance was highlighted by the protein and fiber... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Drying; Grape marc; Rice bran; Sensory analysis. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-29452018000200902 |
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| Queiroz,Giovanna Alcântara; Silva,Pedro Henrique Lopes; Oliveira,Rosilene Aparecida de; Sodré,George Andrade; Costa,Larissa Corrêa do Bomfim. |
| ABSTRACT: Medicinal plants are generally commercialized dried. However, temperatures used in their drying processes may interfere with the content and chemical composition of their essential oils. The Lippia origanoides possesses thymol in the essential oil that is stored in glandular trichomes. Thymol is a major component of economic importance in the chemical and pharmaceutical industry. The objective of this study was to evaluate the effect of the drying temperatures of L. origanoides leaves regarding trichome integrity, content, and chemical composition of the essential oil. The experimental design was completely randomized with four treatments defined by oven drying temperatures (40, 50, 60, and 70ºC) and four replications. Essential oil was... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lippia origanoides; Medicinal plant; Secretory structures; Drying; Thymol. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782018001100404 |
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| de Carvalho, Ricardo Oliano; Machado, Miguel Borges; Scherer, Vinícius Saldanha; Fuentes, Giovani Castro; da Luz, Carlos Alberto Silveira; da Luz, Maria Laura G. Silva. |
| Drying tomatoes with high initial moisture content have advantages such as: maintenance of mineral constituents, inhibition of the action of microorganisms, reduction of the cost of transportation, handling, and storage and is an alternative to the problems of waste disposal and pollution. Moreover, dried products, besides the more economical and affordable package, is an option for light and quick meals. Small and low cost tray dryers are hard to find in the Brazilian market. Producing your own dehydrated food is a practice used in many countries for domestic consumption, as a gift, for small-scale enterprises, because some people appreciate handmade products that are related to a healthier product, without additives. The present study aimed to dry... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Drying; Tomatoes cost.. |
| Ano: 2015 |
URL: http://www.cigrjournal.org/index.php/Ejounral/article/view/3106 |
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| Registros recuperados: 96 | |
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