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Title of Article DEVELOPMENT OF HERBAL CAPSULES CONTAINING MULBERRY LEAF AND BLACK TEA EXTRACTS USING THE MODIFIED LIQUISOLID TECHNIQUES 
Date of Acceptance 9 April 2019 
Journal
     Title of Journal International Journal of Applied Pharmaceutics 
     Standard SCOPUS 
     Institute of Journal International Journal of Applied Pharmaceutics 
     ISBN/ISSN  
     Volume 2019 
     Issue
     Month กรกฎาคม
     Year of Publication 2019 
     Page  
     Abstract Objective: The objective of this study was to develop the capsules containing mulberry leaf extract (MLE) and black tea extract (BTE). Methods: MLE and BTE were prepared by maceration and determined for phytochemicals, in vitro alpha-amylase and alpha-glucosidase inhibitory activities using the enzymatic colorimetric assay. The granules of MLE and BTE were prepared by the application of liquisolid technique and evaluated for the flow properties. The selected granule formulation was filled into the hard gelatin capsule and evaluated for weight variation and disintegration. Results: The yields of MLE and BTE solid extracts were 8.12 and 4.23 %w/w, respectively. Total phenolic and total flavonoid contents were 32.46±5.22 mg TAE/g DW and 44.03±3.37 mg QE/g DW for MLE and 244.66±23.28 mg TAE/g DW and 214.43±3.22 mg QE/g DW for BTE, respectively. The IC 50 for alpha-amylase of MLE and BTE were 0.69±0.04 and 3.34±0.08 mg/ml, respectively; whereas those for alpha-glucosidase of MLE and BTE were 0.67±0.42 and 0.43±0.15 mg/ml, respectively. The granule prepared with MCC and silica at the ratio of 20:1 showed the highest flowability. The weight variation of the prepared MLE and BTE capsules was within the range of the limitation criteria of ± 5%. The average disintegration time of capsules was 1.1±0.1 min. Conclusion: Herbal capsules of MLE and BTE were successfully prepared. The suitable carrier and coating were MCC and silica with a ratio of 20:1. This study revealed the potential application of liquisolid technique as a tool to produce a capsule of herbal crude extracts. 
     Keyword Mulberry leaf extract, Black tea extract, Capsule, Liquisolid 
Author
575150035-1 Miss KANSUPAK NOPARAT [Main Author]
Pharmaceutical Sciences Master's Degree

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