Deodorization
Mostrando 1-12 de 14 artigos, teses e dissertações.
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1. Development of a novel compound microbial agent for degradation of kitchen waste
Abstract Large quantities of kitchen waste are produced in modern society and its disposal poses serious environmental and social problems. The aim of this study was to isolate degradative strains from kitchen waste and to develop a novel and effective microbial agent. One hundred and four strains were isolated from kitchen waste and the 84 dominant strains
Braz. J. Microbiol.. Publicado em: 2017-07
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2. Effects of Yucca schidigera on gas mitigation in livestock production: A review
ABSTRACT Yucca schidigera extract (YSE) has received much interest in the application of manure deodorization and hazardous gas mitigation in livestock rearing conditions. The main objective of this review article was to summarize the current knowledge regarding YSE towards its gas mitigation from livestock excrement. Saponins have been considered to be vita
Braz. arch. biol. technol.. Publicado em: 02/05/2017
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3. Study of physical deacidification of the vegetable oils using model systems / Estudo da desacidificação por via fisica de oleos vegetais utilizando sistemas-modelos
The steam deacidification step must be designed in order to take into account the high difference in the volatility of undesirable compounds and the neutral oil under high temperatures and vacuum, without causing damage to nutraceutical compounds, excessive production of trans fatty acids and neutral oil loss. To improve the process conditions of this import
Publicado em: 2009
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4. Quantificação de TBHQ (terc butil hidroquinona) e avaliação da estabilidade oxidativa em óleos de girassol comerciais
Sunflower oil is one of the vegetable oils most susceptible to oxidative reaction. Therefore the presence of natural (tocopherol) and/or synthetic (TBHQ) antioxidants is a prerequisite to secure the stability of this oil during its shelf life, especially with the increased use of PET packaging. On determining the total tocopherol content in 10 samples of deo
Química Nova. Publicado em: 2008
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5. Biofilter efficiencies in the purification and deodorization of hydrogen sulfide emissions / Desempenho de filtro biológico na depuração e desodorização de emissões de sulfeto de hidrogênio
Traditionally the industrial waste gases have been treated by physical-chemical processes, such as scrubbers, absorption, condensation and oxidation. Although these techniques presented great efficiency, the need to add chemical products and the replacement of adsorbent results in relatively high operational costs compared to biological treatment techniques.
Publicado em: 2007
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6. Computational simulation of deodorization and deacidification of vegetable oils. / Simulação computacional de processos de desodorização e desacidificação de oleos vegetais.
This work was developed in order to study through simulation, the processes of deacidification by steam refining and deodorization, present in the vegetable oil industry. The modeling was developed for batch and continuous processes in steady-state and dynamic regime. To describe mass and energy balances, and equilibrium relationships, it was necessary to us
Publicado em: 2005
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7. Implantação das metodologias de caracterização e estudo da remoção de acidos graxos livres dos destilados desodorizados de oleos vegetais por meio da destilação molecular
Distilates of the vegetable oil deodorization (DVOD) are composed by free fatty acids, phytosterols, tocopherols, phytosterol esters, hydrocarbons, acylglycerols and products of decomposition of these molecules. The content of free fatty acids (FFA) in the deodorizer distillates varies between 24% and 85%. Due to its high content, free fatty acid separation
Publicado em: 2005
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8. Soybean oil processing using ultrafiltration in micelle in the degumming step / Processamento de oleo de soja utilizando ultrafiltração em miscela na etapa de degomagem e na obtenção de lecitina
Crude soybean oil is traditionally degummed by water addition or phosphoric acid. The membrane technology applied to vegetable oils processing has become important because it allows to use temperatures, reduces waste water treatment, retains undesirable products, besides preserving important minor compounds in the oil. The objectives of this work were to opt
Publicado em: 2004
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9. Montagem e avaliação de um equipamento para desodorização de "leite de soja" por arraste de vapor superaquecido
This study used a single variety of soybeans from the same harvest for the production of soymilk. This product is widely used in the Far East, where it is an important nutritional source, but in our culture, it faces considerable resistance amongst consumers, due to the unpleasant flavor of soymilk, which results trom a number of compounds existing in the be
Publicado em: 2002
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10. Otimização da esterificação da materia saponificavel do destilado de desodorização do oleo de soja / Optimization of esterification of the unsaponifiable matter of deodorization distillate of soybean oil
The esterification of the soybean oil deodorizer distillate (SODD) saponifiable material is a very important step for the utilization of this residue from the refining oil industry, used as a raw material in tocopherol (Vit. E)and sterol extracts or concentrated production. In this research work, three esterification processes of the SODD unsaponifiable matt
Publicado em: 2001
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11. Refino a seco de oleo de soja
The current chemical refining process (or conventional) of vegetable oils generates a great amount of liquid waste water, due to the usage of water in the process, mainly in the desacidification step, where the ftee fatty acids are neutralized through the addition of an aqueous solution ofNaOH, transforming these compounds in soaps (soapstock), oi! insoluble
Publicado em: 2000
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12. Avaliação de componentes minoritarios de oleos vegetais nos processos tecnologicos
We report the effects of individual steps of industrial and laboratorial refining on the alteration of selected minor constituents of oils, such as com, soybean and rapeseed oils such as sterols, steradienes, steryl ester, tocopherols and tocotrienols, polymeric glycerides, trans fatty acids. Total sterols, determined by capillary GC, decreased by 18 to 36%
Publicado em: 1997