Browsing Ali Yeon Md Shakaff, Dato' Prof. Dr. by Author "Zhari, Ismail"

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    • Correlation studies between electronic nose response and headspace volatiles of Eurycoma longifolia extracts 

      Shafiqul Islam, A.K.M.; Zhari, Ismail; Bahruddin, Saad; Abdul Rahman, Othman; M. Nizam, Ahmad; Ali Yeon, Md Shakaff (Elsevier B.V., 2006-12)
      Most herbs have their own characteristic smell due to the presence of volatile compounds. Traditionally, volatiles are analyzed by using sophisticated and expensive gas chromatography (GC) in tandem with a selective mass ...

    • Disposable array sensor strip for quantification of sinensetin in Orthosiphon stamineus Benth samples 

      Mohd Noor, Ahmad; Yap Mee Sim, Maxsim; Chang Chew, Cheen; A. K. M., Shafiqul Islam; Zhari, Ismail; Misni, Surif; Ali Yeon, Md Shakaff; Larisa, Lvova (Springer-Verlag, 2008)
      A disposable screen printed array sensor strip based on self-plasticized lipid membranes combined with chemometric algorithm has been developed and applied for quantification of Orthosiphon stamineus Benth extracts. ...

    • A microcontroller-based taste sensing system for the verification of Eurycoma longifolia 

      Rahman, A. S A; Yap, M. M S; Ali Yeon, Md Shakaff; Mohd Noor, Ahmad; Dahari, Z.; Zhari, Ismail; Muhammad Suzuri, Hitam (Elsevier, 2004-06)
      With the proliferation of numerous herbal remedies on the market, the ability to verify the actual presence of the active herbal ingredient in a product would be very useful. In this paper, a microcontroller-based electronic ...

    • Taste profiling of Centella Asiatica by a taste sensor 

      Shafiqul Islam, A.K.M.; Zhari, Ismail; Mohd Noor, Ahmad; Abdul Rahman, Othman; Saravanan, Dharmaraj; Ali Yeon, Md Shakaff (MYU K.K., 2003)
      A taste sensor was used for organoleptic profiling and quality evaluation of Centella asiatica extracts and isolates on the basis of basic tastes i.e., sweet, sour, bitter, salty and umami. The sensor uses an array of ...

    • Transient parameters of a coated quartz crystal microbalance sensor for the detection of volatile organic compounds (VOCs) 

      Shafiqul Islam, A. K M; Zhari, Ismail; M. Nizam, Ahmad; Bahruddin, Saad; Abdul Rahman, Othman; Ali Yeon, Md Shakaff; Abdul Razak, Daud; Ishak, Z. (Elsevier B.V., 2005-09)
      A PVC blended lipid membrane coated quartz crystal microbalance has been prepared to mimic human olfaction system. Transient response curves of the sensor on exposure to methanol, ethanol, chloroform, acetone and benzene ...