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Isolation and preliminary evaluation of Mulva Neglecta mucilage: a novel tablet binder
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Isolation and preliminary evaluation of Mulva Neglecta mucilage: a novel tablet binder
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Isolation and preliminary evaluation of Mulva Neglecta mucilage: a novel tablet binder
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Journal Article
Isolation and preliminary evaluation of Mulva Neglecta mucilage: a novel tablet binder
2016
Overview
ABSTRACT The aim of this study was to evaluate binding potential of Mulva neglecta mucilage (MNM) with subsequent comparison to PVP K30. Eight batches of Diclofenac sodium tablets were prepared by wet granulation technique keeping different concentrations (4, 6, 8 & 10% w/w) of Mulva neglecta mucilage (extracted from leaves of Mulva neglecta) and PVP K30 as standard binder. The granules of formulated batches showed bulk density (g/mL) 0.49 ± 0.00 to 0.57 ± 0.00, tapped density (g/mL) 0.59 ± 0.01 to 0.70 ± 0.01, Carr's index 09.27 ± 0.95 to 19.65 ± 0.59, Hausner's ratio 1.12 ± 0.00 to 1.24 ± 0.01 and angle of repose 30.37 ± 2.90 °C to 36.86 ± 0.94 °C. Tablets were compressed to hardness 7.50 to 7.95 kg/cm2. The tablets showed 0.39 ± 0.02 to 0.39 ± 0.01% friability and 7:20 to 14:00 min disintegration time. Granules and post-compression evaluation revealed that parameters assessed were all found to be within the pharmacopoeial limits. The results (hardness, disintegration and dissolution) proved that Mulva neglecta mucilage has better binding capacity for preparation of uncoated tablet dosage form as compared to PVP K30. Among all the formulations, MN-1 to MN-4 showed slow release as compared to PV-1 to PV-4 and thereby Mulva neglecta mucilage exhibited satisfactory drug release phenomenon tablets of diclofenac sodium. RESUMO O objetivo deste estudo foi avaliar o potencial de ligação de mucilagem de Mulva neglecta (MNM), com posterior comparação ao PVP K30. Oito lotes de comprimidos de diclofenaco de sódio foram preparados pela técnica de granulação úmida, mantendo diferentes concentrações (4, 6, 8 e 10% w/w) de mucilagem de Mulva neglecta (extraída de folhas de Mulva neglecta) e PVP K30 como ligante padrão. Os grânulos de lotes formulados mostraram densidade aparente (g/mL) 0.49 ± 0.00-0.57 ± 0.00, densidade compactada (g/mL) 0.59 ± 0.01-0.70 ± 0.01, índice de Carr 09.27 ± 0.95-19.65 ± 0.59, a relação de Hausner 1.12 ± 0.00-1.24 ± 0.01 e ângulo de repouso 30.37 ± 2.90 °C a 36.86 ± 0.94 °C. Os comprimidos foram prensados à dureza de 7.50-7.95 kg/cm2. Os comprimidos apresentaram 0.39 ± 0.02-0.39 ± 0.01% friabilidade e 7:20-14:00 min de tempo de desintegração. A avaliação de grânulos e pós-compressão revelou que todos os parâmetros estavam dentro dos limites da farmacopeia. Os resultados (dureza, desintegração e dissolução) provaram que a mucilagem de Mulva neglecta tem maior capacidade de ligação na preparação da forma de dosagem de comprimido não revestido em relação à PVP K30. Entre todas as formulações, MN-1 e MN-4 mostraram liberação lenta em comparação com PV-1 e PV-4 e, assim, a mucilagem de Mulva neglecta exibiu liberação do fármaco satisfatória para os comprimidos de diclofenaco de sódio.
Publisher
Universidade de Sao Paulo Faculdade de Ciencias,Universidade de São Paulo, Faculdade de Ciências Farmacêuticas,Universidade de São Paulo
