95 resultados para Moringa
Resumo:
The objective of this study was to evaluate the effects of sugarcane juice treatment using Moringa oleifera leaf and seeds extracts on ethanolic fermentation. The experiment was arranged in a split plot statistical design, with four replications. Main treatments were three sedimentation agents (synthetic polyelectrolyte, moringa leaf and seed extracts) and control while the secondary treatments were two sugarcane varieties (RB867515 and CTC4). Extracted sugarcane juice was clarified by simple defecation with pH adjusted to 6.0. The flocculating agents were added in a decanter before the limed juice. After then, the juice was standardized to 16° Brix at pH 4.5, and musts were inoculated with yeast Saccharomyces cerevisiae strain, FT858. At the end of the fermentation process, wines were recovered by centrifugation. In all experimental stages, extracted juice, clarified juice and wine were chemically and technologically characterized. The use of moringa leaf and seed extracts as sedimentation adjuvants did not increase the sedimentation speed of impurities. However, there was a high sludge compaction, which was essential for maintenance of yeast and bud population at the beginning of fermentation, and yeast budding rate in the end. The use of different sedimentation agents as adjuvants in juice treatment did not affect wine quality and ethanol yield.
Resumo:
The aim of this study was to determine the antioxidant activity of Moringa (Moringa oleifera Lam.) leaves flour in beef burger during storage for 120 days. Six hamburger formulations were processed: one control (without the use of additives), four with addition of Moringa leaves flour (0.10, 0.15, 0.20, and 0.25 g/100 g aggregate), and one with addition of synthetic antioxidant Propyl Gallate (0.01 g/100 g aggregate). The products were analyzed for their chemical composition with determinations of moisture, protein, dietary fiber, lipids, ash, carbohydrate, and caloric value after preparation. Microbiological and acceptance testing were performed at the beginning and after 120 days of storage. Determination of pH, instrumental color and lipid oxidation (TBARS) were performed at 1, 30, 60, 90 and 120 days of storage. All samples showed physical-chemical and microbiological tests in accordance with the Brazilian legislation. pH measurements were between 5.48 and 5.90; however, the intensity of red has changed according to the treatments and storage periods. The addition of Moringa leaves flour had no antioxidant effect on burgers, but its inclusion not only contributed to the improvement of nutritional quality, but also did not harm product acceptance.
Resumo:
Com o grande crescimento da população e consequentemente o aumento significativo do consumo de produtos de origem industrial, quantidades enormes de efluentes são geradas, e muitas vezes descartadas de forma imprópria. Esses resíduos industriais comumente são eliminados em mananciais hídricos, afetando lençóis freáticos, córregos, rios e oceanos. Uma das maiores evidências da poluição da água é a alteração de sua cor original. Despejo de efluentes têxteis, por exemplo, alem de alterar drasticamente a cor dos mananciais, geram produtos e subprodutos tóxicos, nocivos tanto para a flora como para a fauna aquática. Essas substâncias possuem alta persistência em meio aquático devido a sua natureza química, conferindo a estes efluentes um lento processo de biodegradação e podendo ter efeito bioacumulativo na cadeia alimentar. Assim veem sendo desenvolvidas diversas maneiras de se controlar a quantidade e a qualidade de efluentes industriais, dentre eles os de corantes têxteis. As técnicas mais utilizadas são a cloração, filtração, tratamentos floculantes e adsorção por Carvão Ativados. Porem, muitas vezes esses processos possuem desvantagens, como, por exemplo, o alto custo e alterações drásticas no pH. Assim tratamentos alternativos, como o uso de Moringa oleifera, veem sendo muito estudados. Este trabalho visou avaliar o potencial do uso das sementes de Moringa oleifera como adsorvente na remoção de corantes têxteis em meio aquoso. Para isso foi analisado a remoção do corante Direct Violet 51, utilizando pó das sementes. Foram realizados testes com diferentes tempos de contato nos valores de pH 2,5, 4,5 e 6,5. Posteriormente novos testes foram realizados, utilizando o sobrenadante e a biomassa das sementes, ambos na forma livre e imobilizada em alginato de calcio, bem como reutilização destes. Através da analise das amostras, notou-se que o processo de coagulação/floculação sobressaiu-se em...
Resumo:
Com o grande crescimento da população e consequentemente o aumento significativo do consumo de produtos de origem industrial, quantidades enormes de efluentes são geradas, e muitas vezes descartadas de forma imprópria. Esses resíduos industriais comumente são eliminados em mananciais hídricos, afetando lençóis freáticos, córregos, rios e oceanos. Uma das maiores evidências da poluição da água é a alteração de sua cor original. Despejo de efluentes têxteis, por exemplo, alem de alterar drasticamente a cor dos mananciais, geram produtos e subprodutos tóxicos, nocivos tanto para a flora como para a fauna aquática. Essas substâncias possuem alta persistência em meio aquático devido a sua natureza química, conferindo a estes efluentes um lento processo de biodegradação e podendo ter efeito bioacumulativo na cadeia alimentar. Assim veem sendo desenvolvidas diversas maneiras de se controlar a quantidade e a qualidade de efluentes industriais, dentre eles os de corantes têxteis. As técnicas mais utilizadas são a cloração, filtração, tratamentos floculantes e adsorção por Carvão Ativados. Porem, muitas vezes esses processos possuem desvantagens, como, por exemplo, o alto custo e alterações drásticas no pH. Assim tratamentos alternativos, como o uso de Moringa oleifera, veem sendo muito estudados. Este trabalho visou avaliar o potencial do uso das sementes de Moringa oleifera como adsorvente na remoção de corantes têxteis em meio aquoso. Para isso foi analisado a remoção do corante Direct Violet 51, utilizando pó das sementes. Foram realizados testes com diferentes tempos de contato nos valores de pH 2,5, 4,5 e 6,5. Posteriormente novos testes foram realizados, utilizando o sobrenadante e a biomassa das sementes, ambos na forma livre e imobilizada em alginato de calcio, bem como reutilização destes. Através da analise das amostras, notou-se que o processo de coagulação/floculação sobressaiu-se em...
Resumo:
Estudio de la posibilidad de introducción de la Moringa oleifera en la Península Ibérica, Islas Baleares e Islas Canarias. Se hace un análisis de las características de esta planta , para dar a conocer su cultivo y usos potenciales por los que pueda resultar interesante la introducción, así como su distribución actual (tanto en la región de origen, como donde se ha introducido) y sus características ecológicas. De esta manera, se consigue una clasificación de los parámetros ecológicos que definen el hábitat de la especie , determinantes para conocer si es posible su introducción en el territorio objeto del estudio. Para conocer la aptitud de la Península, las Islas Baleares y el archipiélago Canario para la introducción de la moringa, se va a realizar un análisis de sus parámetros ecológicos (fisiográficos, climáticos y edáficos) de la especie en el territorio objeto de estudio. Para finalmente conocer las áreas potenciales de introducción de la Moringa oleifera en la Península Ibérica, Islas Baleares e Islas Canarias. Islas Canarias.
Resumo:
Zonificación bioclimática de la moringa (Moringa oleífera Lam.) en la Península Ibérica para producir biocombustibles.
Resumo:
The principal effluent in the oil industry is the produced water, which is commonly associated to the produced oil. It presents a pronounced volume of production and it can be reflected on the environment and society, if its discharge is unappropriated. Therefore, it is indispensable a valuable careful to establish and maintain its management. The traditional treatment of produced water, usualy includes both tecniques, flocculation and flotation. At flocculation processes, there are traditional floculant agents that aren’t well specified by tecnichal information tables and still expensive. As for the flotation process, it’s the step in which is possible to separate the suspended particles in the effluent. The dissolved air flotation (DAF) is a technique that has been consolidating economically and environmentally, presenting great reliability when compared with other processes. The DAF is presented as a process widely used in various fields of water and wastewater treatment around the globe. In this regard, this study was aimed to evaluate the potential of an alternative natural flocculant agent based on Moringa oleifera to reduce the amount of oil and grease (TOG) in produced water from the oil industry by the method of flocculation/DAF. the natural flocculant agent was evaluated by its efficacy, as well as its efficiency when compared with two commercial flocculant agents normally used by the petroleum industry. The experiments were conducted following an experimental design and the overall efficiencies for all flocculants were treated through statistical calculation based on the use of STATISTICA software version 10.0. Therefore, contour surfaces were obtained from the experimental design and were interpreted in terms of the response variable removal efficiency TOG (total oil and greases). The plan still allowed to obtain mathematical models for calculating the response variable in the studied conditions. Commercial flocculants showed similar behavior, with an average overall efficiency of 90% for oil removal, however it is the economical analysis the decisive factor to choose one of these flocculant agents to the process. The natural alternative flocculant agent based on Moringa oleifera showed lower separation efficiency than those of commercials one (average 70%), on the other hand this flocculant causes less environmental impacts and it´s less expensive
Resumo:
Several tests that evaluate the quality of seeds are destructive and require time, which is considered long and expensive in the processes that involves the production and marketing of seed. Thus, techniques that allow reducing the time related to assess the quality of seed lots is very favorable, considering the technical, economic and scientific point of view. The techniques images of seed analyzed both by X-ray such as digital images, represent alternative for this sector, and are considered reproducible and fast, giving greater flexibility and autonomy to the activities of production systems. Summarily, the objective was to analyze the internal morphology of seeds of this species through x-rayed images and the efficiency of weed seed area increased during soaking through image analysis and compare them with the results of germination tests and force the evaluation of physiological seed quality. For X-ray tests, the seeds were exposed for 0.14 seconds at radiation 40kV and 2.0 mAs. Were analyzed images using the ImageJ program and subsequently put to germinate in B.O.D chamber at 27 ° C, in which there was the comparison of results for germination. To determine the test area increase (% IA), seeds were used with and without seed coat, maintained the B.O.D chamber at 15 ° to 20 ° C, the seeds were photographed before and after the soaking period, the results were compared to the germination rates. For the X-ray test, it was observed that seeds with empty area greater than 20%, showed a higher percentage of abnormal seedlings. And the area increment analysis showed that it is possible to rank the batch after 8 hours of imbibition at 15 ° C according to the germination and vigor tests
Resumo:
With the increasing environmental awareness, maximizing biodegradability and minimizing ecotoxicity is the main driving force for new technological developments. Thus, can be developed new biodegradable lubricants for use in environmentally sensitive areas. The aim of this study was to obtain new bio-lubricants from passion fruit (Passiflora edulis Sims f. flavicarpa Degener) and moringa (Moringa oleifera Lamarck) epoxidized oils and develop a new additive package using experimental design for their use as a hydraulic fluid. In the first stage of this work was performed the optimization of the epoxidation process of the oils using fractional experimental design 24-1 , varying the temperature, reaction time, ratio of formic acid and hydrogen peroxide. In the second step was investigated the selectivity, thermodynamics and kinetics of the reaction for obtaining the two epoxides at 30, 50 and 70 °C. The result of the experimental design confirmed that the epoxidation of passion fruit oil requires 2 hours of reaction, 50 °C and a ratio H2O2/C=C/HCOOH (1:1:1). For moringa oil were required 2 hours reaction, 50 °C and a ratio of H2O2/C=C/HCOOH (1:1:1.5). The results of the final conversions were equal to 83.09% (± 0.3) for passion fruit oil epoxide and 91.02 (±0,4) for moringa oil epoxide. Following was made the 23 factorial design to evaluate which are the best concentrations of corrosion inhibitor and anti-wear (IC), antioxidant (BHA) and extreme pressure (EP) additives. The bio-lubricants obtained in this step were characterized according to DIN 51524 (Part 2 HLP) and DIN 51517 (Part 3 CLP) standards. The epoxidation process of the oils was able to improve the oxidative stability and reduce the total acid number, when compared to the in natura oils. Moreover, the epoxidized oils best solubilized additives, resulting in increased performance as a lubricant. In terms of physicochemical performance, the best lubricant fluid was the epoxidized moringa oil with additives (EMO-ADI), followed by the epoxidized passion fruit oil with additives (EPF-ADI) and, finally, the passion fruit in natura oil without additives (PFO). Lastly, was made the investigation of the tribological behavior under conditions of boundary lubrication for these lubricants. The tribological performance of the developed lubricants was analyzed on a HFRR equipment (High Frequency Reciprocating Rig) and the coefficient of friction, which occurs during the contact and the formation of the lubricating film, was measured. The wear was evaluated through optical microscopy and scanning electron microscopy (SEM). The results showed that the addition of extreme pressure (EP) and anti-wear and corrosion inhibitor (CI) additives significantly improve the tribological properties of the fluids. In all assays, was formed a lubricating film that is responsible for reducing the coefficient of metal-to-metal wear. It was observed that the addition of EP and IC additives in the in natura vegetable oils of passion fruit and moringa did not favor a significant reduction in wear. The bio-lubricants developed from passion fruit and moringa oils modified via epoxidation presented satisfactory tribological properties and shown to be potential lubricants for replacement of commercial mineral-based fluids.
Resumo:
The evaluation of seed vigor is an important factor for detection of lots of high quality seeds, so that development of procedures to evaluate the physiological potential has been an important tool in quality control programs seeds. In this sense the study aimed to adapt the methodologies of accelerated aging, electrical conductivity and potassium leaching to evaluate Moringa oleifera seed vigor LAM.. Therefore, four lots of moringa seeds were subjected to the germination tests, seedling emergence, speed of emergence index, emergence first count, length and dry mass of seedlings and cold test for their physiological characterization, in addition to accelerated aging, electrical conductivity and potassium leaching. The experimental design was completely randomized with four replications of 50 seeds and the means compared by Tukey test at 5% probability. For accelerated aging the periods were studied aging 12, 24 and 72 hours at 40, 42 and 45°C. For the electrical conductivity test was used to a temperature of 25°C for periods of 4, 8, 12, 16 and 24 hours of immersion in 75 to 125 mL of distilled water, using 25 to 50 seeds, and for potassium leaching test samples were used 25 to 50 seeds, placed in plastic cups containing 70 and 100 mL of distilled water at 25°C for periods of 1, 2, 3, 4, 5 and 6 hours. From the results obtained, it can be inferred that the methods best fit for the accelerated aging test Moringa seeds were a temperature of 40°C for 12 to 72 hours, 42°C 72 hours 45°C 24 hours . In the electrical conductivity test Moringa seeds, the combination of 50 seeds in 75 mL distilled water for a period of immersion of 4 hours and 50 seeds in 125 mL of 4 hours were efficient for the differentiation of lots of Moringa seeds as to vigor and for potassium leaching test moringa seeds, the combination of 50 seeds in 100mL of distilled water allowed the separation of lots of four levels of vigor, at 2 hours of immersion, showing promise in evaluate the quality of moringa seeds.
Resumo:
The evaluation of seed vigor is an important factor for detection of lots of high quality seeds, so that development of procedures to evaluate the physiological potential has been an important tool in quality control programs seeds. In this sense the study aimed to adapt the methodologies of accelerated aging, electrical conductivity and potassium leaching to evaluate Moringa oleifera seed vigor LAM.. Therefore, four lots of moringa seeds were subjected to the germination tests, seedling emergence, speed of emergence index, emergence first count, length and dry mass of seedlings and cold test for their physiological characterization, in addition to accelerated aging, electrical conductivity and potassium leaching. The experimental design was completely randomized with four replications of 50 seeds and the means compared by Tukey test at 5% probability. For accelerated aging the periods were studied aging 12, 24 and 72 hours at 40, 42 and 45°C. For the electrical conductivity test was used to a temperature of 25°C for periods of 4, 8, 12, 16 and 24 hours of immersion in 75 to 125 mL of distilled water, using 25 to 50 seeds, and for potassium leaching test samples were used 25 to 50 seeds, placed in plastic cups containing 70 and 100 mL of distilled water at 25°C for periods of 1, 2, 3, 4, 5 and 6 hours. From the results obtained, it can be inferred that the methods best fit for the accelerated aging test Moringa seeds were a temperature of 40°C for 12 to 72 hours, 42°C 72 hours 45°C 24 hours . In the electrical conductivity test Moringa seeds, the combination of 50 seeds in 75 mL distilled water for a period of immersion of 4 hours and 50 seeds in 125 mL of 4 hours were efficient for the differentiation of lots of Moringa seeds as to vigor and for potassium leaching test moringa seeds, the combination of 50 seeds in 100mL of distilled water allowed the separation of lots of four levels of vigor, at 2 hours of immersion, showing promise in evaluate the quality of moringa seeds.
Resumo:
This study was conducted to assess the effect of air-dried Moringa stenopetala leaf (MSL) supplementation on carcass components and meat quality in Arsi-Bale goats. A total of 24 yearling goats with initial body weight of 13.6+/-0.25 kg were randomly divided into four treatments with six goats each. All goats received a basal diet of natural grass hay ad libitum and 340 g head^(−1) d^(−1) concentrate. The treatment diets contain a control diet without supplementation (T1) and diets supplemented with MSL at a rate of 120 g head^(−1) d^(−1) (T2), 170 g head^(−1) d^(−1) (T3) and 220 g head^(−1) d^(−1) (T4). The results indicated that the average slaughter weight of goats reared on T3 and T4 was 18.2 and 18.3 kg, respectively, being (P<0.05) higher than those of T1 (15.8 kg) and T2 (16.5 kg). Goats fed on T3 and T4 diets had higher (P<0.05) daily weight gain compared with those of T1 and T2. The hot carcass weight in goats reared on T3 and T4 diets was 6.40 and 7.30 kg, respectively, being (P<0.05) higher than those of T1 (4.81 kg) and T2 (5.06 kg). Goats reared on T4 had higher (P<0.05) dressing percentage than those reared in other treatment diets. The rib-eye area in goats reared on T2, T3 and T4 diets was higher (P<0.05) than those of T1. The protein content of the meat in goats reared on T3 and T4 was 24.0 and 26.4%, respectively being significantly higher than those of T1 (19.1%) and T2 (20.1%). In conclusion, the supplementation of MSL to natural grass hay improved the weight gain and carcass parts of Arsi-Bale goats indicating Moringa leaves as alternative protein supplements to poor quality forages.
Resumo:
Con el objetivo de caracterizar el comportamiento inicial de Moringa oleifera y profundizar en las ventajas de esta especie, en comparación con otras forrajeras de rápido crecimiento (Leucaena leucocephala y Cajanus cajan); se realizó en el vivero de la Facultad de Recursos Naturales y del Ambiente, un ensayo en diseño completamente aleatorio con 20 repeticiones por especie. Se realizó un conteo diario de germinación por un periodo de tres semanas (21 días); mientras patrones de crecimiento fueron terminados a partir de evaluaciones semanales de diámetro basal y raíz, longitud de tallo y raíz, y número de raíces secundarias; así como producción de biomasa expresada en peso seco y peso fresco de la parte área y radicular, en muestra de ocho plantas destruidas semanalmente. La comparación en el desempeño de cada especie fue contrasta da mediante el uso de índices de calidad de plantas. Los resultados muestran ventajas de la especie M. oleifera para la mayoría de variables; solo superado en el número de raíces secundarias por las dos especies en estudio. Los índices de calidad sugieren pocos problemas de establecimiento en campo para las especies M. oleifera y L. leucocephala como producto del rápido crecimiento, y aun con la desigual proporción en la relación tallo-raíz, y biomasa. Los valores de calidad registrados para cada especie pueden ser modificados a través de prácticas silviculturales en las plantas en el vivero.
Resumo:
Con el objetivo de estudió efecto de la inclusión de follaje fresco de Marango ( Moringa oleifera ) sobre la fermentación en estado sólido (FES) de la caña de azúcar ( Saccharum officinarum ) mejorando su valor nutricional (FES - Moringa), utilizando un diseño completamente al azar (DCA) con cuatro tratamientos y tres repeticiones. Los niveles de inclusión de follaje fresco de Moringa oleifera (FFMO) fueron: (T1) 10 %, (T2) 15%, (T3) 20%, (T4) 25 %. Las variables estudiadas fueron : indicadores fermentativos a nivel de campo y composición q uímica. Encontrando que la temperatura ambiental promedio durante las 36 h fue de 30.4 ± 0.81 0 C. L a temperatura promedio de fermentación para los tratamientos fueron 32.68 ± 0.63 0 C, 31.92 ± 0.56 0 C, 31.43 ± 0.61 0 C y 31.67 ± 0.66 0 C para FES - Moringa con 10, 15, 20 y 25%, respectivamente . E l pH del proceso de FES - Moringa se mantuvo entre 5.5 y 8.8 con un pH promedio de 6.8 ± 0.2, 6.74 ± 0.21, 6.79 ± 0.21 y 6.67 ± 0.19 para cada tratamiento, respectivamente. E l contenido de humedad del sustrato de fermentación estuvo entre 55.9 y 68.2% acorde con lo recomendado para la rep roducción de hongos y levaduras . El contenido de PB de l T1 difiere significativamente (P < 0.05 % ) del contenido de PB de los T2, T3, T4 . La FDN no mostró u na diferencia ( p > 0.05 % ) , entre los tratamientos, sin embargo se puede observar un a disminución significativa (p < 0.05%) en el contenido de FDN con relación a la caña de azúcar (CA) . N o hay diferencia (P > 0.05 % ) de la DIVMS entre los diferentes niveles de inclusión del FFMO . La adición de FFMO mejora la FES de la CA y valor nutricional , además de ser una alternativa económica al compararl o con alimentos convencionales
Resumo:
Con el objetivo de evaluar la producción de biomasa en época seca de dos especies forrajeras : marango ( Moringa olei fera Lam) y Leucaena ( Leucaena leucocephala Lam de wit ), se realizó en la Universidad Nacional Agraria, un estudio en un sistema de cerca viva. El ensayo co nsistió en el establecimiento de plantaciones lineales con distanciamientos de 2m x 2m para M . olifera y 3m x 3m para L. leucocephala . Se utilizó una altura de corte de 1m y frecuencia de cor te de 30 días entre diciembre 2014 y mayo 2015; periodo en el que se colecto información de las variables diámetro basal de las plantas, numero de rebrotes y longitud de rebrotes. Los parámetros cuantificados para determinar el rendimiento fueron: Rendimiento de Materi a Fresca Total (RMFT), Rendimiento de Materia Seca Total (RMST) Y Tasa de crecimiento (TC). El crecimiento lento en diámetro sugiere efecto de la frecuencia de corte y déficit de la precipitación. El número y longitud de rebrotes se vieron disminuidos prin cipalmente por defoliación así como el déficit de la precipitación. M. oleifera registro mayor rendimiento tanto como en materia fresca como en materia seca, determinando diferencias estadísticas (p < 0.05), así mismo en cuanto a la tasa de crecimiento cuan tificada. Producto del déficit de precipitación y defoliación se registró reducción del 70 al 86% en el rendimiento de las especies, pero aun así se concluye que con medidas de manejos asociados a la época seca; ambas especies representan recursos para una buena disponibilidad de forraje cuando los pastos no cubren la demanda