Extraction and Microencapsulation of Polyphenols from Orthosiphon Stamineus Leaves

Sook, Fun Pang and Mei, Zhu Lau and M. M., Yusoff and Jolius, Gimbun (2014) Extraction and Microencapsulation of Polyphenols from Orthosiphon Stamineus Leaves. Journal of Mechanical Engineering and Sciences (JMES) , 7. pp. 1033-1041. ISSN 2289-4659 (print); 2231-8380 (online). (Published)

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Abstract

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.

Item Type: Article
Uncontrolled Keywords: Microencapsulation; flavonoid; Misai kucing; Eupatorin; Sinensetin; Rosmarinic acid
Subjects: T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Faculty of Industrial Sciences And Technology
Depositing User: ina
Date Deposited: 29 May 2014 06:45
Last Modified: 22 Jan 2018 01:27
URI: http://umpir.ump.edu.my/id/eprint/5692
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