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Registros recuperados: 2.860 | |
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Machado,Marília Pereira; Silva,André Luís Lopes da; Biasi,Luiz Antonio; Deschamps,Cícero; Bespalhok Filho,João Carlos; Zanette,Flávio. |
In the present study, the effects of two CaCl2.2H2O levels (440 and 1320 mg L-1) and two subcultures were evaluated on in vitro shoots of Lavandula angustifolia cv. Provence Blue. Ca2+ content of the apical, middle and basal portion of shoots was determined. Increasing CaCl2.2H2O level in the culture medium increased tissue Ca2+ content and decreased hyperhydricity. Shoot-tip necrosis also decreased with 1320 mg L-1 CaCl2.2H2O, but it did not occur in the second subculture. The middle and basal portion had higher Ca2+ content than apical portion. In non-hyperhydric tissues, there were smaller and more juxtaposed cells. Scanning electron microscopy of the leaves demonstrated that trichomes from in vitro leaf surface occurred in smaller quantities. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: True lavender Micropropagation CaCl2.2H2O; Leaf anatomy Ultrastructure Trichome. |
Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132014000500636 |
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Fertonani,Heloísa Cristina Ramos; Scabio,Ardalla; Carneiro,Eliana Beleski Borba; Schemim,Maria Helene Canteri; Nogueira,Alessandro; Wosiacki,Gilvan. |
In Brazil, one of the top apple producing countries in the world, apple processing is an increasing activity, with pomace as the main by-product. To extract pectin from pomace, factors affecting process and product should be studied for optimization. A model to produce LMP directly from dried apple pomace was established observing the effects of HNO3 concentration and the time of reaction at 97ºC, analyzed from a statistical and practical point of view. The model for gravimetric yield (R² =0.9834) predicts the highest value of 20.07 g/100 g (126 mM; 14.07 min) of a pectin with a degree of esterification of 48.49%. The model for degree of esterification of extracted pectin (R²= 0.9797) predicts the lowest value of 43.73% (200 mM; 10.07 min) with a yield of... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Apple; Pectin; Extraction; LMP; Nitric acid. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000100023 |
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Afonso,Ana Adelina de O.; Henry,Raoul; Rodella,Rita C.S.Maimoni. |
In two streches of the Itaúna stream, one in a gallery forest and the other in an herbaceous vegetation zone, litter matter input (sorted by leaves, ligneous and reproductive components) were measured during a year. In the gallery forest stretch, the direct input and lateral transport attained 713 g.m-2.year-1 and 421 g.m-1. year-1, respectively. In contrast, the herbaceous vegetation stretch showed a direct litter input and lateral transport of only 86 g.m-2.year-1 and 124 g.m-1. year-1, respectively. The empoverishment of riparian vegetation had a significant effect on the decrease of allochthonous input to stream mainly by direct input. Peaks of direct input into Itaúna stream occurred during late dry season and in the early wet season. They were... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Allochthonous input; Stream; Riparian vegetation. |
Ano: 2000 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132000000300014 |
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Guirao,Sara; Benítez Segura,Ana; Bajén,Maria Tereza; Brulles,Ynonet Ricart; Salvado,Jaume Mora; Vilardell,Ana Domenech; Rodriguez Gassen,Alba; Engronyat,Manel Roca; Puchal Añe,Rafael; Martin-Comin,Josep. |
The aim of the work was to analyse the potential influence of different factors on the surgical detection of sentinel lymph node in breast cancer. The procedure has been performed in 704 patients. In 43 out of the 704 cases, the SN was not detected, 24 were palpable and 19 had no palpable tumors. Lymphoscitigraphy was done in 2 h p.i. of 37-55 MBq of 99mTc-nanocolloid. The day before surgery in palpable tumours and 4 h previous to surgery in non-palpable tumours, surgical detection was performed using a gammaprobe. The following factors were analysed: patient age, tumour size, breast quadrant tumour localization, scintigraphic visualizatio,n and the palpation of the tumour. Results: Patient age was significantly (p<0.001) higher in the patients in whom... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Sentinel node; Breast cancer. |
Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000700026 |
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Ferreira,Catia S. M.; Missailidis,Sotiris. |
Aptamers, short, single stranded oligonucleotide entities, have been developed in the past 15 years against a plethora of targets and for a variety of applications. These range from inhibition of receptors and enzymes to the identification of small molecules in sensor applications, and from the development of targeted therapeutic to the design of novel diagnostic and imaging agents. Furthermore, aptamers have been designed for targets that cover a wide range of diseases, from HIV to tropical diseases, cancer and inflammation. Their easy development and flexibility of use and manipulation, offers further potential. In this paper we review their selection and consider some of the recent applications of aptamers in the design of radiopharmaceuticals for the... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Aptamers; Radiopharmaceuticals; SELEX; Radiolabeling; Medical imaging. |
Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000600008 |
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Motteran,Fabrício; Pereira,Erlon Lopes; Campos,Claudio Milton Montenegro. |
This work evaluated the potential of the acidification equalization tank (AET) used as a primary treatment unit, treating the hog farming wastewater. The treatment system consisted of a degritter with a triangular-notch weir, for measuring the flow, a static sieve, and an acidification and equalization tank (AET), an anaerobic baffled reactor (ABR), an upflow anaerobic sludge blanket (UASB) reactor, a settling tank, a greenhouse for fertirrigation and two infiltration ponds. The AET had a net capacity of 8,000 liters, internally covered with asphalt blanket, worked based on surface loading rates application. The unit operated continuously, with its flow varying from 0.1 to 10 L s-1. To determine the efficiency, the following parameters were measured: pH;... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Swine effluent; Organic matter removal; Primary treatment; Pollution control; Inexpensive technologies. |
Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132013000300017 |
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Pratissoli,Dirceu; Zanuncio,José Cola; Vianna,Ulysses Rodrigues; Andrade,Josimar Souza; Pinon,Tobias Baruc Moreira; Andrade,Gilberto Santos. |
This research studied the thermal requirements of Trichogramma pretiosum and T. acacioi (Hymenoptera: Trichogrammatidae), parasitoids of Nipteria panacea (Lepidoptera: Geometridae), with eggs of the alternative hosts Anagasta kuehniella (Lepidoptera: Pyralidae) and Sitotroga cerealella (Lepidoptera: Gelechiidae) aiming to use these natural enemies in biological control programs of this pest in avocado orchards. T. pretiosum needed 151.83 and 160.04 degree-days, above threshold of 10.70 and 10.75°C, while these values were 158.50 and 155.46 degree-days, above threshold of 10.67 and 10.46°C for T. acacioi when exposed to eggs of A. kuehniella and S. cerealella, respectively. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Avocado; Alternative host; Biological control; Temperature. |
Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000500003 |
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Rajendran,Aravindan; Palanisamy,Anbumathi; Thangavelu,Viruthagiri. |
Lipases are one of the most important industrial biocatalyst which catalyzes the hydrolysis of lipids. It can also reverse the reaction at minimum water activity. Because of this pliable nature, it is widely exploited to catalyze the diverse bioconversion reactions, such as hydrolysis, esterification, interesterification, alcoholysis, acidolysis and aminolysis. The property to synthesize the esters from the fatty acids and glycerol promotes its use in various ester synthesis. The esters synthesized by lipase finds applications in numerous fields such as biodiesel production, resolution of the recemic drugs, fat and lipid modification, flavour synthesis, synthesis of enantiopure pharmaceuticals and nutraceuticals. It plays a crucial role in the food... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Lipase; Food applications; Ester; Esterification; Synthesis. |
Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132009000100026 |
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Atti-Santos,Ana Cristina; Rossato,Marcelo; Pauletti,Gabriel Fernandes; Rota,Luciana Duarte; Rech,Juarez Ciro; Pansera,Marcia Regina; Agostini,Fabiana; Serafini,Luciana Atti; Moyna,Patrick. |
Nineteen samples of Rosmarinus officinalis were extracted by steam distillation in a pilot plant and evaluated in terms of chemical compositions and physico-chemical characteristics. The volatile oil yields ranged from 0.37% (1999 harvest) to 0.49% (1998 harvest). Twenty components were identified in the oils. The major components were alpha-pinene (40.55 to 45.10%), 1,8-cineole (17.40 to 19.35%), camphene (4.73 to 6.06%) and verbenone (2.32 to 3.86%). The physico-chemical parameters averaged 0.8887 g/cm³ for specific gravity, 1.4689 for refractive index, and +11.82° for optical rotation, and there were no significant variations in either the chemical or physico-chemical data in the different years. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Rosmarinus officinalis rosemary essential oil composition alpha-pinene 1; 8-cineole physico-chemical parameters. |
Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132005000800020 |
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Costa,Denise Pinheiro Soncini da; Gonçalves,Tania Maria Vinturin; Conti-Silva,Ana Carolina. |
Abstract Fishburgers were made with washed mechanically separated meat (MSM) from carcass and filleting by-product (both washed and unwashed) of the Nile tilapia. The proximal composition of fishburgers was different and varied according to the raw material used, as well the color parameters. Fishburgers with MSM from filleting by-product had lower hardness and springiness, and fishburger with MSM from unwashed filleting by-product had higher yield and lower reduction in thickness. The fishburgers containing MSM from filleting by-product had better sensory acceptance, due to higher color intensities (sensory), fish odor, tenderness, succulence, cohesiveness and fish flavor. The fishburger with MSM from washed carcass was the least acceptable, because of... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Carcass; Filleting by-product; Sensory profile; Sensory acceptance. |
Ano: 2019 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132019000100517 |
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Benjamin,Sailas; Pandey,Ashok. |
Three distinct forms (Lip A, Lip B and Lip C) of extra-cellular lipases (EC- 3.1.1.3), produced by Candida rugosa in solid state fermentation (SSF) were purified and characterised. SSF was carried out in glass columns using coconut oil cake and wheat bran. The enzyme was purified from the aqueous extract of fermented matter by ammonium sulphate precipitation, dialysis, ultra-filtration and gel filtration using Sephadex-200 to a 43-fold purification and 64.35-mg/ml specific activity. SDS-PAGE of purified enzyme revealed three distinct bands, indicating the existence of three iso-forms, Lip A, Lip B and Lip C with apparent molecular weight about 64,000, 62,000 and 60,000 Da, respectively. All the three iso-forms were optimally active at 35-40°C and pH 7-8.... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Candida rugosa; Lipases; Solid cultures; Purification; Characterization. |
Ano: 2001 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132001000200016 |
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Zaniboni-Filho,Evoy; Reynalte-Tataje,David; Nuñer,Alex Pires de Oliveira; Meurer,Samira. |
This study aimed to evaluate the influence of photoperiod on juvenile suruvi (Steindachneridion scriptum) in six photoperiods: 24L-0D (L= Light; D= Dark), 18L-6D, 14L-10D, 10L-14D, 6L-18D and 0L-24D. Juveniles measuring 176.8 ± 13.2mm and weighing 60.2 ± 16.0g were distributed in eighteen 150-L aquariums, stocked with 8 juveniles per aquarium. At the end of the study, treatments 24L-0D (105.7 ± 5.8g and 845.9 ±46g) and 0L-24D (93.3 ± 4.9g and 746.4 ± 39.5g) were different (P<0.05) on weight and biomass. Survival (100 ± 0.0%) and length (212.5 ±2.5mm) were the same (P>0.05) in all the treatments. The results showed that suruvi (Steindachneridion scriptum) reached better weight and biomass in extended light periods. |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Steindachneridion scriptum; Larviculture; Photoperiod; Growth. |
Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132008000300016 |
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Gonçalves,Alex Augusto; Prentice-Hernández,Carlos. |
The bluefish (Pomatomus saltatrix) constitutes the main fishing resource in Rio Grande do Sul (Brazil) coast in the autumn, winter and spring months. Considering that this fish is highly perishable, to have its shelf life increased an adequate treatment and processing are needed as soon as its capture occurs. Its use in the elaboration of a smoked product can represent considerable economic growth, if compared to its current "in natura" or frozen commercialization. A bluefish base smoked product was elaborated using natural smoke flavouring (known commercially as liquid smoke) defining the adjusted technological characteristics during the processing. The best form of liquid smoke application (immersion or sprinkling) was chosen sensorially by hedonic... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Bluefish; Processing; Smoked fish; Liquid smoke. |
Ano: 1999 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89131999000100006 |
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Registros recuperados: 2.860 | |
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