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Differentiation of the white and purple flower forms of Orthosiphon aristatus (Blume) miq. By 1D and 2D correlation ir spectroscopy
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نویسنده
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man s. ,kiong l.s. ,ab’lah n.a. ,abdullah z.
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منبع
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jurnal teknologi - 2015 - دوره : 77 - شماره : 3 - صفحه:81 -86
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چکیده
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Orthosiphon aristatus (blume) mig. is also known as misai kucing or kumis kucing. the plant is traditionally used to treat tonsilities,fever,menstrual disorders,gonorrhea,syphilis,gallstones,rheumatism,diabetes,hypertension,epilepsy,edema,hepatitis jaundice and for diuretic activity. the objective of this work was to differentiate the white and purple flower forms of o. aristatus (blume) by multisteps infrared (ir) macro-fingerprinting. the analyses included fourier transform infrared spectroscopy (ft-ir),second derivative ir spectroscopy and twodimensional correlation infrared (2d ir) spectroscopy with thermal perturbation. a distinctive absorption peak at 1384 cm-1 from the purple flower form clearly differentiated the two forms of o. aristatus. further differentiation was made by the appearance of a strong auto-peak at 1580 cm-1 for the white flower form and at 1546 cm-1 for the purple flower form. such results indicate that the multi-steps infrared macro-fingerprinting has the potential for the development of a fast and reliable analytical methodology for distinguishing the white and purple flower forms of o. aristatus (blume) miq. effectively. © 2015 penerbit utm press. all rights reserved.
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کلیدواژه
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2D IR correlation spectroscopy; FT-IR; Orthosiphon aristatus
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آدرس
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natural products division,forest research institute malaysia,kepong, Malaysia, natural products division,forest research institute malaysia,kepong, Malaysia, natural products division,forest research institute malaysia,kepong, Malaysia, natural products division,forest research institute malaysia,kepong, Malaysia
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Authors
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