| Autor: |
Siti Raihan Zakaria, Ruziyati Tajuddin, Rozita Osman, Norashikin Saim, Mardiana Saaid |
| Předmět: |
|
| Zdroj: |
Pertanika Journal of Science & Technology; 2017 Supplement, Vol. 25 Issue S, p167-174, 8p |
| Abstrakt: |
Headspace solid phase microextraction (HS-SPME) was used to isolate volatile compounds (VOCs) from mangoes (Harumanis cv.). Among the four SPME fibres investigated, the mixed phase coating, 65 pm polydimethyl siloxane-divinylbenzene (DVB/PDMS) showed the highest efficiency in extracting VOCs as 26 compounds were detected with the total area of 9.6 x 109. The optimization of SPME factors was conducted in 2 stages using multivariate design. The first stage involved screening of the significant factors using the Plackett-Burman (P-B) design, followed by the optimization of the significant factors utilizing Central Composite Design (CCD). The experimental design for both P-B and CCD design was generated using Design-Expert version 6.0.4 (Stat Ease Software). Extraction time and temperature appeared to be the most significant factors in extracting VOCs in mangoes, with the optimum conditions prevailing at 55°C and 34 minutes respectively. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
|
