Anti-diabetic Activity of Rosmarinic Acid Rich Fractions from Orthosiphon stamineus

2018 ◽  
Vol 14 (2) ◽  
pp. 97-103 ◽  
Author(s):  
Yi L. XNgo ◽  
Lee S. Chua
Author(s):  
Sriyana Abdullah ◽  
Abdul Razak Shaari ◽  
Ibni Hajar Rukunudin ◽  
Muhammad Syarhabil Ahmad

2020 ◽  
Vol 240 ◽  
pp. 104124
Author(s):  
Xuan Cai ◽  
Lu Zhang ◽  
Xujie Chen ◽  
Hongzhi Zhang ◽  
Huiqin Xue ◽  
...  

2010 ◽  
Vol 9 (1) ◽  
pp. 137-141
Author(s):  
M. Amzad Hossain ◽  
Zhari Ismail

This paper presents the studies performed on extraction of Orthosiphon stamineus, Benth by using different solvent for the identification and quantification of the caffeic acid derivatives such as caffeic acid  and rosmarinic acid which confers to the leaves of this plant with remarkable pharmaceutical properties. High performance thin-layer chromatographic (HPTLC) allows the identification and the quantification of more than 20 samples in the same chromatographic run. The analysis of the samples requires 15-30 min compared with more than 2 h using a typical HPLC method. Using the techniques of the HPTLC and the UV-VIS spectra we have found that the extraction of this herb plant contain, the caffeic acid and rosmarinic acid ranging between 0.029% up to 0.506% and up to 0.24% to 2.24% respectively.     Keywords: Caffice acid derivatives, quantification, Malaysian Orthosiphon stamineus, HPTLC


2015 ◽  
Vol 10 (4) ◽  
pp. 271-285 ◽  
Author(s):  
Cher H. Lau ◽  
Lee S. Chua ◽  
Chew T. Lee ◽  
Ramlan Aziz

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