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Registros recuperados: 53 | |
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Dias, Thaís Gabrielle; Vilas Boas, Ana Carolina; Junqueira, Maria Beatriz Affonso; Lima, Luiz Carlos de Oliveira. |
UV-C radiation is a food preservation method aimed to extend the life of the product, inactivate microorganisms, and stimulate the synthesis of phenolic compounds. This study aimed to physicochemically characterize and evaluate the antioxidant activity and phenolic content of ‘Gala’ apples subjected to different UV-C radiation doses.The fruits were harvested, sanitized, selected and inserted into a UV-C radiation chamber, and different radiation doses were applied as follows:0 KJ m-2 (0 min.), 0.68 KJ m-2 (2 minutes),2.73 KJ m-2 (4 minutes), and 4.10 KJ m-2 (6 minutes). The apples were stored for 120 days at 5 ± 1°C and analyzed after 0, 30, 60, 90, and 120 days of storage. Radiation doses had no influence on parameters, such as weight loss, firmness and... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Malus sp.; Preservation; Quality; Bioactive compounds. |
Ano: 2017 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciAgron/article/view/30979 |
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MUSSURY,ROSILDA M.; SCALON,SILVANA P.Q.; SILVA,MAGAIVER A.; SILVA,TATIANE F.; GOMES,HELLEN; GASSI,ROSIMEIRE. |
This paper aimed to evaluate the effects of storage periods on the conservation of Pachyrhizus ahipa roots at different temperatures and packaging materials. The roots were harvested, washed, packed in PVC, plastic bags, without wrappings (control) and stored in polystyrene trays in refrigerators, or cold chambers, or at room temperature. Total titratable acidity (TTA), total soluble solids (TSS), pH, as well as their ash, lipid, total carbohydrate and protein (dry basis) contents were analyzed. The lowest loss of root fresh weight was observed in the cold chamber and plastic bags. The TTA remained higher among roots stored in the cold chamber and in PVC packaging. The lowest TSS contents were observed for roots stored in the cold chamber, and these did... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Yam bean; Storage conditions; Packaging; Preservation. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652013000200761 |
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Nóbrega Jr.,J.E.; Rossetto,R.; Matos,M.H.T.; Chaves,R.N.; Magalhães,D.M.; Lima-Verde,I.B.; Báo,S.N.; Campello,C.C.; Figueiredo,J.R.; Gonçalves,P.B.D.; Oliveira,J.F.C.. |
This study describes the effect of sphingosine 1-phosphate (S1P) for development of preantral follicle, therefore the activation and follicular viability of caprine follicles cultured in vitro. Ovarian fragments were cultured for 1 or 7 days in Minimum Essential Medium with different S1P concentrations (0, 1, 10, 50, 100 or 200ng/mL). All ovarian fragments were processed for histological analysis in optical microscopy, transmission electron microscopy and fluorescence analysis. The treatment using 1ng/mL of S1P was able to maintain the percentage of normal follicles with the progression of the culture from day 1 to 7. At end of the 7-day culture period there was a significant reduction (P<0.05) in the percentage of primordial follicles in all groups... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Goat; Preservation; Preantral follicles; Sphingosine 1-phosphate; Follicular activation. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352014000400977 |
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Ferreira,M.P.; Alievi,M.M.; Beck,C.A.C.; Dal-Bó,I.S.; Gonzalez,P.C.; Nóbrega,F.S.; Silva,L.M.; Stédile,R.; Scherer,S.; Rocha,J.P.V.; Silva Filho,A.P.F.; Svierk,B.; Costa,G.. |
Cats with orthopedic conditions are a prominent part of the clinical work of veterinary. Conditions such as comminuted fractures, bone tumors and non-unions are often difficult to repair and may require the use of bone grafts for treatment. This study evaluated cortical bone allografts preserved in honey, frozen or lyophilized for correcting long bone defects created in the diaphysis of the right femur of domestic cats (n=24). In the control group (n=6), the defect was repaired using autogenous cortical bone graft. In the remaining animals (n=6/group), the defect was repaired with cortical bone allografts preserved in honey, frozen or lyophilized. Success of graft incorporation and length of time for consolidation were assessed through clinical,... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Preservation; Bone; Animal; Orthopedic; Traumatology. |
Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-09352012000200003 |
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Cavalli,Daiane; Frota,Augusto; Lira,Angelica Dorigon; Gubiani,Éder André; Margarido,Vladimir Pavan; Graça,Weferson Júnio da. |
Abstract: Knowledge of the fish species in river basins is among the minimum requirements for the management of water and fish resources. Therefore, the aim of this study was to update the fish species composition of the Piquiri River basin, upper Paraná River basin. Data were gathered from recent information published in specialized literature and records for ichthyology collections. This update reports the occurrence of 152 fish species distributed in 8 orders, 31 families, and 89 genera. Non-native species accounted for 20% of all species, and the construction of the Itaipu Power Plant and its fish ladder were the main vectors of introduction. Three percent of the species were endangered, and 11% were classified as migratory. The Piquiri River basin... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Ichthyofaunal survey; Species knowledge; Preservation; Upper Paraná River basin. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000200305 |
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Costa,Sonia Helena Furtado; Santos,Regiane Rodrigues dos; Ferreira,Marcos Antônio Leal; Machado,Vanessa Porto; Rodrigues,Ana Paula Ribeiro; Ohashi,Otávio Mitio; Figueiredo,José Ricardo de. |
The present study investigated the efficiency of saline solution and coconut water solution in the preservation of goat preantral follicles enclosed in ovarian tissue, at different temperatures and for different incubation periods. At the slaughterhouse, the ovarian pair was divided into 19 fragments; one ovarian fragment was immediately fixed for histology (control-time zero). The other 18 ovarian fragments were preserved in both solutions at 4ºC, 20ºC or 39ºC for 4 h, 12 h or 24 h. The histological analysis showed that the storage of ovarian fragments in both solutions at 4ºC for up to 24 h kept the percentage of normal preantral follicles similar to the control values. In contrast, preservation at 20°C or 39ºC, in either solution, reduced significantly... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Preservation; Goat; Preantral follicles; Coconut water; Saline solution. |
Ano: 2002 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-95962002000600009 |
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Sharma,Nivedita; Gupta,Anupama; Gautam,Neha. |
In the present study, a bacterium isolated from Marcha- a herbal cake used as traditional starter culture to ferment local wine in North East India, was evaluated for bacteriocin like inhibitory substance production and was tested against six food borne/spoilage causing pathogens viz. Listeria monocytogenes MTCC 839, Bacillus subtilis MTCC 121, Clostridium perfringens MTCC 450, Staphylococcus aureus, Lactobacillus plantarum and Leuconostoc mesenteroides MTCC 107 by using bit/disc method followed by well diffusion method. The bacterial isolate was identified as Brevibacillus borstelensis on the basis of phenotypic, biochemical and molecular characteristics using 16Sr RNA gene technique. Bacteriocin like inhibitory substance produced by Brevibacillus... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bacteriocin; Purification; SDS -PAGE; Marcha; Preservation. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822014000300033 |
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Zaghi Júnior,Lienine Luiz; Lopes,Ana Daniela; Cordeiro,Fábio Aparecido; Colla,Itaruã Machri; Bertéli,Míria Benetati Delgado; Valle,Juliana Silveira do; Linde,Giani Andrea; Colauto,Nelson Barros. |
Abstract Agaricus subrufescens is a basidiomycete which is studied because of its medicinal and gastronomic importance; however, less attention has been paid to its preservation. This study aimed to evaluate the effect of sucrose addition to substrate and cryotube on the viability of Agaricus subrufescens cryopreserved at -20 °C and at -75 °C for one and two years. Zero, 10% or 20% sucrose was added to potato dextrose agar or wheat grain. The mycelia were cryopreserved in the absence of cryoprotectant or with sucrose solutions at 15%, 30% or 45%. After one or two years at -75 °C or at -20 °C, mycelia were thawed and evaluated about viability, initial time of growth, colony diameter and genomic stability. Cryopreservation at -20 °C is not effective to keep... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Preservation; Freeze; Cereal grain; Monosaccharide; Agaricus blazei. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000200370 |
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Linde,Giani Andrea; Luciani,Alana; Lopes,Ana Daniela; Valle,Juliana Silveira do; Colauto,Nelson Barros. |
Abstract Basidiomycetes have several biotechnological and industrial applications such as enzyme production, bioremediation, pharmaceutical and functional food production. Due to climatic features, the preservation of several basidiomycetes is threatened, and to guarantee the preservation of this genetic resource, the development of long-term preservation techniques is necessary once there is no universal protocol for the cryopreservation of basidiomycetes. Cryopreservation is a technique in which microorganisms are submitted to ultralow temperatures. Therefore, this study aimed to collect information on the main conditions for long-term cryopreservation of basidiomycetes in the last 20 years. Scientific articles on cryopreservation of basidiomycetes... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Preservation; Substrate; Fungi; Mycelial viability; Cryoprotectant. |
Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822018000200220 |
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Vendrame,Wagner; Faria,Ricardo Tadeu de; Sorace,Mauren; Sahyun,Sandra Aparecida. |
Orchids are lush and highly valuable plants due to their diversity and the beauty of their flowers, which increases their commercialization. The family Orchidaceae comprises approximately 35,000 species, distributed among more than 1,000 distinct genera and 100,000 hybrids, totaling approximately 8% to 10% of all flowering plants. With the advance of agriculture and the constant destruction of their natural habitat, orchid species are collected in an indiscriminate manner by collectors and vendors, and this extractive activity threatens many species with extinction, drastically reducing their genetic variability in nature. Therefore, it is essential to seek alternatives that make the preservation of such species feasible using techniques with low... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Preservation; Orchidaceae; Ex situ conservation; Freezing tolerance; Extinction. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542014000300001 |
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PAULA,Ladyslene Christhyns; SILVA,Flávio Alves; SILVA,Edson Pablo; ASQUIERI,Eduardo Ramirez; DAMIANI,Clarissa. |
Abstract This study aimed to evaluate the behavior of the bioactive compounds and the antioxidant activity of raw mangaba fruit (Hancornia speciosa Gomes), in addition to the influence of preservation methods (freezing, lyophilization, and foam layer drying) on these biocompounds. Samples were evaluated for ascorbic acid, phenolic compound, and carotenoid content and total antioxidant activity by the DPPH, ABTS, and FRAP methods. The analyses were performed in triplicate for each sample and the results were expressed as the mean ± standard deviation. A significant correlation was observed between the content of total phenolic compounds and the total antioxidant activity, as determined by the FRAP method, which showed that the content of ascorbic acid... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Native fruit trees; Apocynaceae; Chemical characterization; Preservation. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000200403 |
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WEI,Peiyu; CAO,Jun; SHEN,Xuanri; LI,Chuan. |
Abstract The effect of different concentrations of gelatin (0%, 2.5%, and 5%) and vacuum packaged on the preservation of golden pompano (Trachinotus blochii) fillets stored at 4 °C was studied over 14 days. The results suggested that both the gelatin groups (2.5% and 5%) showed a reduction in deterioration of colour, drip loss and texture compared to the control group (0%). In addition, the gelatin coating caused a slower reduction in the freshness indexes of the fish, such as total volatile base nitrogen (TVB-N), thiobarbituric acid reactive substances (TBARS), total viable counts and pH. During a certain storage period, the gelatin notably prevented the deterioration of the golden pompano fillet at 4 °C. The 5% gelatin group showed the best effect on... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gelatin; Cold storage; Preservation; Golden pompano; Fillet. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-20612019000600626 |
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Silva,José Roberto Viana; Brasil,Alline Ferreira; Santos,Regiane Rodrigues dos; Costa,Sônia Helena Furtado; Rodrigues,Ana Paula Ribeiro; Ferreira,Marcos Antônio Leal; Machado,Vanessa Porto; Figueiredo,José Ricardo de. |
The present work has investigated the degeneration rate of goat primordial follicles in situ after preservation in PBS or TCM 199 at different temperatures and incubation times. For each animal the ovarian pair was divided into 19 fragments. One ovarian fragment was taken randomly and immediately fixed (control). The other 18 ovarian fragments were randomly distributed in tubes containing PBS or TCM 199 and stored at 4º, 20º or 39ºC for 4, 12 or 24h. The storage of ovarian fragments in PBS or TCM 199 at 20ºC for 12h and 24h or at 39ºC, in all incubation times tested, increased significantly the percentage of degenerated primordial follicles (P<0.05). In contrast, for both media tested the degeneration rate of primordial follicles preserved at 4ºC for up... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Primordial follicles; Degeneration; Goat; Preservation. |
Ano: 2003 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782003000500019 |
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Bertolino, Maria Lúcia. |
This work has as objective to argue the environmental question concerning the conservation of the forests and biodiversity. One major issue in this question is that the Brazilian forest sector contributes with an important parcel for the Brazilian economy, generates products for direct consumption or for exportation, generates taxes and jobs for the population and, still, bring positive and negative consequences in the conservation and preservation of both renewable and not renewable natural resources. The forest economy has been, historically, responsible for one of the five largest positive commercial balances of the country and still it supplies 85% of all the products of forest origin found in the national market, therefore, alleviating the pressure on... |
Tipo: Article |
Palavras-chave: Preservation; Biodiversity; Forests. |
Ano: 2007 |
URL: http://hdl.handle.net/2315/106 |
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Registros recuperados: 53 | |
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