Biosynthesized Gold Nanoparticle Developed as a Tool for Detection of HCG hormone in Pregnant Women Urine Sample
This paper presents a microencapsulation study using whey protein isolate and maltodextrin of polyphenol obtained from Orthosiphon stamineus leaves. Polyphenol content was analysed using ultra-performance liquid chromatography. Higher solid concentration leads to higher solution viscosity, bigger pa...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2014
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/5314/ http://umpir.ump.edu.my/id/eprint/5314/ http://umpir.ump.edu.my/id/eprint/5314/ http://umpir.ump.edu.my/id/eprint/5314/1/fkksa-2014-kuppusamy-art.pdf |
| Summary: | This paper presents a microencapsulation study using whey protein isolate and maltodextrin of polyphenol obtained from Orthosiphon stamineus leaves. Polyphenol content was analysed using ultra-performance liquid chromatography. Higher solid concentration leads to higher solution viscosity, bigger particle size, lower moisture content and less dented surface, which may improve particle flowability. Microencapsulation using a least amount of protein (0.05wt.%) yielded better retention of romarinic acid (82.08%), sinensetin (79.57%) and eupatorin (81.08%) than those with higher protein concentration. Meanwhile, 5.33 wt.% of maltodextrin provide the highest polyphenol retention of rosmarinic acid (82.67%), sinensetin (82.24%) and eupatorin (80.19%). The results suggest that eupatorin and rosmarinic acid are more susceptible to thermal degradation than sinensetin during spray drying. Formulation using 5.33% maltodextrin provide a better preservation of polyphenols compared to other formulations. |
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