Purity Test
Mostrando 1-12 de 71 artigos, teses e dissertações.
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1. Substituting sucralose with rebaudioside A in soy foods: equivalent sweetness, physicochemical analysis, microbiological assessment and acceptance test
Abstract Stevia rebaudiana (Bert.) Bertoni contains steviol glycosides with emphasis to rebaudioside A, which presents a stronger sweet flavor, more stability, good solubility and lower bitter residual taste, which benefits its application in foods and drinks. The objective of this study was to determine the equivalent amount of rebaudioside A necessary to p
Food Sci. Technol. Publicado em: 2020-12
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2. Production regions, physical and physiological quality of Brachiaria brizantha cv. BRS 'Piatã' seeds
RESUMO A qualidade das sementes é influenciada pelas condições climáticas do campo de produção. A identificação das características dos melhores campos de sementes de forrageiras permite o aprimoramento do setor. Neste estudo, objetivou-se identificar características climáticas das regiões produtoras que podem afetar as qualidades física e fisio
Rev. Ciênc. Agron.. Publicado em: 04/11/2019
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3. The use of X-ray to evaluate Brachiaria brizantha seeds quality during seed processing
RESUMO O teste de raios X permite a visualização das estruturas internas das sementes de modo não destrutivo e individualizado, possibilitando o diagnóstico de causas da baixa germinação e pureza de um lote. O objetivo do trabalho foi avaliar a qualidade das sementes de Brachiaria brizantha utilizando-se o teste de raios X e o efeito das etapas de bene
Rev. Ciênc. Agron.. Publicado em: 04/07/2019
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4. Harvesting methods on physical and physiological quality of Panicum maximum seeds
RESUMO A qualidade de sementes de espécies forrageiras pode ser influenciada pelos diferentes métodos de colheita utilizados. Nesta pesquisa objetivou-se avaliar a qualidade física e fisiológica de sementes de Panicum maximum cultivares Massai e Mombaça, obtidas pelos métodos de colheita no cacho (corte das panículas) e varredura do solo, de diferente
Rev. bras. eng. agríc. ambient.. Publicado em: 2019-04
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5. Maturation, processing and seed storage of Elephantopus mollis Kunth
ABSTRACT. Elephantopus mollis Kunth (Asteraceae) is an aromatic medicinal species native to South and Central America with hepatoprotective, anti-inflammatory, antitumor and leishmanicidal properties. We evaluated its maturation, ideal harvest moment, processing and seed storage, aiming to contribute to the production of this medicinal plant. We collected fl
Acta Sci., Agron.. Publicado em: 28/03/2019
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6. Detection and clearance of a mosquito densovirus contaminant from laboratory stocks of Zika virus
BACKGROUND The Zika virus (ZIKV) epidemics that affected South America in 2016 raised several research questions and prompted an increase in studies in the field. The transient and low viraemia observed in the course of ZIKV infection is a challenge for viral isolation from patient serum, which leads to many laboratories around the world sharing viral stra
Mem. Inst. Oswaldo Cruz. Publicado em: 07/02/2019
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7. Extraction and purification of astaxanthin from shrimp shells and the effects of different treatments on its content
Abstract In this study, the extraction process and purification technology of astaxanthin from shrimp shells were established, and the effects of different treatments on the content of astaxanthin were studied. The determination results of astaxanthin in various shrimp/crab shells showed that the astaxanthin content in the Procambarus clarkia shell reached 2
Rev. bras. farmacogn.. Publicado em: 2019-02
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8. Effects of dodecacalcium hepta-aluminate content on the setting time, compressive strength, alkalinity, and cytocompatibility of tricalcium silicate cement
Abstract Objective This study aimed to investigate the effects of dodecacalcium hepta-aluminate (C12A7) content on some physicochemical properties and cytocompatibility of tricalcium silicate (C3S) cement using human dental pulp cells (hDPCs). Material and Methods High purity C3S cement was manufactured by a solid phase method. C12A7 was mixed with the cem
J. Appl. Oral Sci.. Publicado em: 07/01/2019
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9. Processing and physical and physiological quality of the native forest seeds of Vernonanthura discolor
ABSTRACT. The objective was to study the processing of Vernonanthura discolor seeds, evaluating their physical and physiological qualities and defining parameters for purity analysis and determine the weight of one thousand seeds. The seeds extracted from the infructescences were processed in a blower, testing combinations of openings of the calibration valv
Acta Sci., Agron.. Publicado em: 17/12/2018
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10. Effect of Growth Velocity and Zn Content on Microhardness in Directionally Solidified Al-Zn Alloys
In this study, Al-xZn (x=1, 3, 5, 7, 10 and 20 wt. %) alloys were prepared using metals of 99.99% high purity in the vacuum atmosphere. These alloys were directionally solidified upward with a constant temperature gradient, G (10.3 K/mm) and different growth velocities (V) between 8.25 and 165 µm/s in the directional solidification apparatus. The experiment
Mat. Res.. Publicado em: 13/09/2018
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11. Preparation and neutralization efficacy of IgY antibodies raised against Deinagkistrodon acutus venom
Abstract Background The five-paced pit viper (Deinagkistrodon acutus), endemic to China and northern Vietnam, is responsible for most snakebites in the Chinese territory. Antivenom produced from horses is the main treatment for snakebites, but it may cause numerous clinical side effects and have other disadvantages involved in their production such as the
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 06/07/2017
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12. Soil pretreatment and fast cell lysis for direct polymerase chain reaction from forest soils for terminal restriction fragment length polymorphism analysis of fungal communities
Abstract Humic substances in soil DNA samples can influence the assessment of microbial diversity and community composition. Using multiple steps during or after cell lysis adds expenses, is time-consuming, and causes DNA loss. A pretreatment of soil samples and a single step DNA extraction may improve experimental results. In order to optimize a protocol fo
Braz. J. Microbiol.. Publicado em: 2016-12