Extraction and Microencapsulation of Polyphenols from Orthosiphon Stamineus Leaves
This paper presents an extraction and microencapsulation study of polyphenols obtained from Orthosiphon stamineus leaves. Extraction using aqueous solvent enabled a simultaneous extraction of both hydrophilic and lipophilic phenolic compounds. Higher solid concentration leads to hi...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English English |
| Published: |
Faculty Mechanical Engineering, UMP
2014
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/5692/ http://umpir.ump.edu.my/id/eprint/5692/ http://umpir.ump.edu.my/id/eprint/5692/ http://umpir.ump.edu.my/id/eprint/5692/1/CHEM-005.pdf http://umpir.ump.edu.my/id/eprint/5692/4/fkksa-2014-pang-extraction%20and%20microencapsulation.pdf |
| Summary: | This paper presents an extraction and microencapsulation study of polyphenols obtained from Orthosiphon stamineus leaves. Extraction using aqueous solvent enabled a simultaneous extraction of both hydrophilic and lipophilic phenolic compounds. Higher solid concentration leads to higher solution viscosity, bigger particle size, lower moisture content and a less dented surface, which may improve particle flowability. The results suggest that eupatorin and rosmarinic acid are more susceptible to thermal degradation than sinensetin during spray drying. The formulation of 1:9 whey protein to
maltodextrin ratio was also found to be more effective, with 86.7% total flavonoids retention compared to other formulations, viz, 1:1 and 9:1. |
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