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1.
Rev. cuba. farm ; 48(1)ene.-mar. 2014.
Article in Spanish | LILACS, CUMED | ID: lil-721290

ABSTRACT

OBJETIVO: formular cápsulas duras a partir de extracto blando de Tamarindus indica L. MÉTODOS: se seleccionaron las cantidades de los excipientes lactosa monohidratada, almidón de maíz y dióxido de silicio coloidal (Aerosil®), utilizando un diseño factorial 23. Se seleccionó para envasar en cápsulas, el granulado con mejor fluidez y menor humedad residual. Se evaluó la calidad de las cápsulas duras. RESULTADOS: la formulación escogida fue lactosa monohidratada 35,0 g, Aerosil® 3,0 g y almidón de maíz 7,5 g, pues mostró buena fluidez y una humedad residual de 4,17 por ciento. Las cápsulas duras formuladas, presentaron buena calidad tecnológica. CONCLUSIONES: se obtuvieron cápsulas duras que pueden ser preparadas, a pequeña escala, a nivel dispensarial(AU)


OBJECTIVE: to formulate hard capsules from Tamarindus indica L. soft extract. METHODS: the amounst of the exicipients called lactose monohydrate, corn starch and colloidal silicon dioxide (Aerosil®) were selected, using a 23 full factorial design. The selection of the best formulation was based on the best rheological properties and the least residual humidity. The quality of the filled hard capsules was evaluated. RESULTS: the formulation containing lactose monohydrate 35.0 g, Aerosil® 3.0 g and corn starch 7.5 g was selected. This formulation showed good fluidity and 4.17 percent residual humidity. Hard capsules showed good technological quality. CONCLUSIONS: hard capsules that can be prepared at small-scale production dispensaries(AU)


Subject(s)
Humans , Tamarindus , Plant Preparations/therapeutic use , Capsules
2.
Bol. latinoam. Caribe plantas med. aromát ; 12(2): 154-161, mar. 2013. tab, ilus
Article in Spanish | LILACS | ID: lil-722788

ABSTRACT

In this study, the possible preclinical toxic effects of the Tamarindus indica L tablets were evaluated by the acute oral toxicity (AOT) and oral mucosa irritation (OMI), adapting guideline OECD 423 and ISO 10993-10, respectively. The AOT was evaluated, using the Class Toxocity Method in Sprague Dawley females rats and the OMI was assessed in sirian hamsters, according to the acute exposure method. Any sign of toxicity were not observed in the study. No animal death was occurring and the body weight increase in the two experimental groups was not statistically different. Slight irritation of the oral mucosa of the animals was observed, but this fact didn't impede them to feed appropriately and they body weight increase normally during the assay. Tamarind tablets were framed as non toxic substance and they produce a “light irritability” of the oral mucosa.


En este trabajo se evaluó a nivel preclínico, los posibles efectos tóxicos de las tabletas de Tamarindus indica L. Se ensayó la toxicidad aguda oral, por el método de las clases de toxicidad, en ratas hembras de la línea Sprague Dawley y la irritabilidad de la mucosa oral en Hamster sirio, según las normas OECD 423 y ISO 10993-10, respectivamente. Durante el estudio de toxicidad aguda, no se observaron signos de toxicidad, ni muerte. El peso corporal en ambos grupos experimentales aumentó y no fue diferente estadísticamente. En el estudio de irritabilidad, se observó una ligera irritación en la mucosa de los biomodelos. Esto no les impidió alimentarse adecuadamente y se observó un incremento del peso corporal de ambos grupos experimentales. Se determinó que las tabletas producen una irritabilidad “leve” de la mucosa oral y no clasifican como tóxicas según las normas internacionales de referencia.


Subject(s)
Animals , Female , Rats , Plant Extracts/toxicity , Irritants/toxicity , Mouth Mucosa , Tablets , Tamarindus/chemistry , Body Weight , Rats, Sprague-Dawley , Tamarindus/toxicity , Weight Gain
3.
Rev. cuba. farm ; 46(2): 240-248, abr.-jun. 2012.
Article in Spanish | LILACS | ID: lil-628461

ABSTRACT

Objetivo: evaluar la estabilidad física, química y microbiológica, en estante, de tabletas de hojas de Tamarindus indica L. Métodos: se evaluaron las propiedades físico-mecánicas, la concentración de polifenoles, los perfiles de disolución y la calidad microbiológica durante dos años, manteniendo las tabletas envasadas en frascos de cloruro de polivinilo de alta densidad, con tapa inviolable y almacenadas en lugar seco y fresco. Se realizaron determinaciones de cada una de las propiedades cada tres meses. Resultados: Durante el estudio, las tabletas mantuvieron el color marrón claro que las caracteriza, el mismo olor fresco a fruta madura y la misma apariencia física. Las propiedades físicas se mantuvieron intactas durante dos años: dureza mayor que 5 kg/f (Monsanto), friabilidad menor que 1 por ciento, masa y la altura dentro de la variabilidad permitida. El tiempo de desintegración fue menor que 10 min. La cantidad de polifenoles liberada en 30 min estuvo por encima del 87 por ciento durante el estudio. Conclusiones: se demostró que las tabletas de tamarindo 120 mg, mantienen las propiedades físico-mecánicas, la concentración de polifenoles y la calidad microbiológica y biofarmacéutica durante dos años. Para asegurar la estabilidad química de las tabletas con mayor precisión, en este momento se desarrollan estudios por cromatografía de capa delgada


Objective: to evaluate the physical stability, chemical and microbiological stability of the Tamarindus indica L tablets on shelf. Methods: the physical and mechanical properties, the polyphenol concentrations, the dissolution profiles and the microbiological quality were evaluated for two years. Tablets were packed in high density PVP flasks and were stored in a dry and fresh place. Each of the properties was determined every three months. Results: throughout the study, the tablets kept their characteristic light brown color, the same odour resembling ripe fruit and the same physical appearance. The physical properties remained unchanged during two years: hardness was higher than 5 kg/f (Monsanto), friability lower than 1 percent, mass and height were within the allowable variability. Disintegration time was less than 10min. The released percentage of polyphenols in 30 min was over 87 percent in the course of study. Conclusions: it was demonstrated that 120mg Tamarind tablets can keep their physical-mechanical properties, the polyphenol concentrations and the microbiological and biopharmaceutical quality for 2 years. Thin layer chromatographic studies are currently conducted to assure more precisely the chemical stability of the tablets


Subject(s)
Drug Stability , Tamarindus
4.
Rev. cuba. plantas med ; 17(1): 108-114, ene.-mar. 2012.
Article in English | LILACS | ID: lil-615756

ABSTRACT

Introduction: Tamarindus indica L or Tamarind as commonly known is a medicinal plant witha broad spectrum of application in medicine. Tamarind is the most useful plant for liver disorders treatment in Cuba and The Caribbean. People use it as decoction and have to take up to four liters a day of this preparation, because the use of alcohol in the Tamarind fluid extracts prevent its use in patient with lever desorders. Objective: the aim of this study was the preliminary establisment of quality control parameters of the Tamarindus indica L soft extract as a novel alcohol-free active ingredient for solids pharmaceutical formulation. Methods: organoleptics properties, total solids, relative density, pH, and total ashes were stablished. The polyphenols content was evaluated as a chemical marker using Folin-Ciocalteau spectrophotometric method. The WHO methodology was followed for the establishment of limits for each one of the parameters...


Introducción: el Tamarindus indica L o tamarindo, como se le conoce comúnmente, es una planta medicinal con un amplio espectro de aplicación en la medicina. Es la más utilizada en Cuba y en el Caribe para los trastornos hepáticos. La población la utiliza en forma de decocción y consume alrededor de 4 L/d de esta preparación, porque el contenido de alcohol del extracto fluido de tamarindo impide su utilización en pacientes con estas enfermedades. Objetivo: establecer de forma preliminar los parámetros de control de calidad en el extracto blando de las hojas de Tamarindus indica L como un nuevo ingrediente activo libre de etanol, para la preparación de formas farmacéuticas sólidas. Métodos: se evaluaron las propiedades organolépticas, sólidos totales, densidad relativa, pH y cenizas totales. Se evaluó el contenido de polifenoles como marcador para el control de calidad de este extracto utilizando el método de Folin Ciocalteau. Se empleó la metodología propuesta por la Organización Mundial de la Salud para el establecimiento de los límites de control...


Subject(s)
Antioxidants , Flavonoids , Phenolic Compounds , Plant Extracts , Tamarindus
5.
Rev. cuba. farm ; 45(4): 553-562, oct.-dic. 2011.
Article in Spanish | LILACS | ID: lil-615185

ABSTRACT

Se realizó un estudio de preformulación de tabletas partiendo del extracto blando de las hojas de la especie Tamarindus indica L. Se estudiaron posibles interacciones en mezclas binarias del extracto blando con los excipientes en relación 1:3 que puedan afectar la cantidad de polifenoles en la mezcla a temperaturas 30, 45 y 60 ºC. Se diseñaron 3 formulaciones preliminares de tabletas y se estudió en todos los casos la calidad de los granulados y de las tabletas. En conclusión, no se producen interacciones que afecten el color, el olor ni la concentración de polifenoles en las mezclas binarias extracto blando de tamarindo-excipientes a 30 ºC, y a temperaturas mayores se reduce la cantidad de polifenoles en las mezclas. La formulación preliminar número tres produce tabletas de calidad tecnológica y resulta adecuada para los subsecuentes estudios de formulación y optimización de tabletas de tamarindo.


A pre-formulation study for tablet preparation using soft extract from Tamarindus indica L. leaves was conducted. Possible interactions in binary mixtures of Tamarindus indica L. soft extract and selected excipients in a 1:3 ratio, which may affect the amount of polyphenols in the mixture at 30°, 45° and 60 °C temperatures, were analyzed. Three preliminary tablet formulations were designed and then the quality of granules and tables were researched in all the cases. It was concluded that there were no interactions affecting the color, the smell and the polyphenol concentration in the evaluated binary mixtures at 30°. At higher temperatures, the amount of polyphenols decreased. Pre-formulation number 3 yielded the best technological quality in tablet production and thus can be used for future formulation and optimization studies of Tamarind tables.

6.
Rev. cuba. farm ; 45(3): 414-422, jul.-set. 2011.
Article in Spanish | LILACS | ID: lil-615161

ABSTRACT

El objetivo de este trabajo fue la formulación de tabletas farmacéuticas para lo cual se empleó como principio activo el extracto blando de las hojas de la especie Tamarindus indica L. Se utilizó el método de elaboración de tabletas por granulación húmeda a escala de laboratorio. Se prepararon 3 formulaciones en las que se varió las cantidades de lactosa, Aerosil®, celulosa microcristalina y croscarmelosa sódica. Se obtuvieron 3 formulaciones con características adecuadas para el proceso de producción de tabletas, de las cuales la número 3 fue la que mostró mejor calidad tecnológica. Se encontró una relación directa entre la cantidad de desintegrante añadido y el tiempo de desintegración, por lo que deberá estudiarse el efecto de este excipiente para la optimización de esta formulación


The objective of this paper was to prepare tablets using Tamarindus indica L. leaf soft extract as active ingredient. The classic method for manufacturing tablets by means of wet granulation at lab scale was used. Three formulations were prepared in which the quantities of excipients lactose, Aerosil®, microcrystalline cellulose and croscarmellose sodium varied. Three formulations were obtained with adequate characteristics in the manufacturing process but the number 3 exhibited the best technological quality. For further optimization of this formulation, the effect of the excipient must be studied because there was direct relationship between the added amount of disintegrant and the disintegration time


Subject(s)
Tablets/therapeutic use , Plant Extracts , Tamarindus
7.
Ciênc. agrotec., (Impr.) ; 32(6): 1899-1905, nov.-dez. 2008. graf, tab
Article in Portuguese | LILACS | ID: lil-508592

ABSTRACT

Objetivou-se, no presente trabalho, estudar a cinética de secagem da polpa de tamarindo pelo método de camada de espuma (foam-mat), a 50, 60, 70 e 80 ºC, e avaliar o efeito dessas temperaturas no teor de ácido ascórbico, acidez total titulável e na cor, expressa pelo parâmetro luminosidade (L*) matiz (hº). Para a representação dos dados experimentais da secagem, três modelos matemáticos de camada fina foram aplicados adotando-se como critérios de seleção o coeficiente de determinação (R²) e o desvio quadrático médio (DQM). De acordo com os resultados obtidos, tem-se que a temperatura é um fator determinante no processo de desidratação e que o modelo de Midilli e Kucuk foi o que melhor representa o comportamento das curvas de desidratação. Os melhores resultados para o teor de ácido ascórbico, acidez titulável e cor foram obtidos para as temperaturas de 60 e 70 ºC.


The foam-mat drying process was studied for the tamarind pulp at 50, 60, 70 and 80ºC and the temperature effect on the tamarind powder were evaluated as regards to ascorbic acid content, total titratable acidity and colour, expressed by luminosity (L*) and hue (hº). For the representation of the drying process three models for thin-layer were applied and the criterion of evaluation used were the coefficient of determination (R²) and root mean square error (DQM). According to the results the temperature is a determinant parameter in the drying process, and the Midilli and Kucuk model was the best one to represent the behavior of the drying curves. The best results for ascorbic acid content, titritable acidity and colour were obtained at the temperatures of 60 and 70 ºC.

8.
Ciênc. agrotec., (Impr.) ; 32(2): 391-397, mar.-abr. 2008. graf, tab
Article in Portuguese | LILACS | ID: lil-483336

ABSTRACT

Objetivou-se com este trabalho avaliar os efeitos de diferentes ambientes e doses de Osmocote® na produção de mudas de tamarindeiro (Tamarindus indica L). Um experimento foi instalado no Pomar da Universidade Federal de Lavras-MG, empregando-se delineamento experimental em blocos casualizados, em esquema fatorial 3 x 4, com quatro repetições e cinco plantas por parcela. Os tratamentos se constituíram dos diferentes ambientes de formação de mudas (casa de vegetação, telado e a céu aberto) e de quatro doses de Osmocote®: 0; 3; 6 e 9 kg m-3 de substrato. Avaliaram-se a altura da muda (cm), comprimento da raiz (cm), número de folhas/planta, matéria seca da parte aérea (g), matéria seca da raiz (g) e a matéria seca total (g). Os resultados demonstraram que o Osmocote® (15-10-10) pode ser recomendado para a formação de mudas de tamarindo, em doses de até 6,0 kg.m-3. O ambiente a céu aberto foi o que proporcionou melhor qualidade às mudas.


This work aimed to evaluate the effect of ambient and Osmocote® (15-10-10) doses on the production of tamarind fruits seedlings. An experiment was carried out in a nursery at Universidade Federal de Lavras, Brazil, arranged in a randomized complete block outline and a 3x4 factorial scheme, with four replications and five plants per plot. The treatments were constituted by greenhouse, nursery and exposed sky, using different dosages of Osmocote® (15-10-10) were 0; 3; 6 e 9 kg m-3 of substrate. Seedling growth, height, number of leaves, aerial part, root and total dry matter were evaluated. The results showed that of Osmocote® (15-10-10) can be recommended for the formation of tamarind seedlings, at doses of until 6 kg m-3. Sky exposing was the one which provided better quality to the seedlings.

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