Antioxidant and antityrosinase activities of piper maingayi HK. essential oil

Hashim, Nur Athirah and Ahmad, Farediah and Darnis, Deny Susanti (2016) Antioxidant and antityrosinase activities of piper maingayi HK. essential oil. Jurnal Teknologi, 78 (1). pp. 169-174. ISSN 0127-9696 E-ISSN 2180-3722

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Abstract

The study was aimed to investigate the chemical components of stem and fruit volatile oils of Piper. maingayi Hk. with their antioxidant and antityrosinase activities. GC and GC-MS analysis of the essential oils obtained from the fresh stem and fruit of P. maingayi Hk. resulted in the identification of 34 and 18 components accounting for 83.6% and 78.7% of the total amount, respectively. Sesquiterpene hydrocarbons and oxygenated sesquiterpenes were the most highly represented classes as the former ranging from 64.7% to 70.7%, and the latter varying from 7.4% to 8.6%. The main constituents of the stem oil were: β-caryophyllene (26.2%), -cedrene (8.4%), caryophyllene oxide (6.7%) and cis-calamenene (6.2%), while the fruit oil was dominated by δ-cadinene (22.6%), β-caryophyllene (18.8%), -copaene (11.2%) and -cadinol (7.1%). The stem and fruit of P. maingayi oils showed significant value for antioxidant and antityrosinase activities. Kajian ini bertujuan untuk mengkaji komponen kimia daripada minyak pati batang dan buah Piper. maingayi Hk. serta aktiviti antioksidan dan antitirosinase. Analisis GC dan GCMS minyak pati yang diperoleh daripada batang dan buah segar P. maingayi Hk. menghasilkan pengecaman 34 dan 18 komponen menyumbang kepada masing-masing 83.6% dan 78.7% daripada jumlah keseluruhan. Hidrokarbon seskuiterpena dan seskuiterpena teroksigen mewakili kelas tertinggi dengan yang pertama menyumbang diantara 64.7% hingga 70.7%, dan keduanya daripada 7.4% hingga 8.6%. Kandungan utama minyak pati dahan ialah: β-kariofilena (26.2%), -sedrena (8.4%), kariofilena oksida (6.7%) dan cis-kalamenena (6.2%), manakala minyak buah didominasi oleh δ-kadinena (22.6%), β- kariofilena (18.8%), -kopaena (11.2%) dan -kadinol (7.1%). Minyak pati batang dan buah P. maingayi menunjukkan nilai yang signifikan untuk aktiviti antioksidan dan antitirosinase.

Item Type:	Article (Journal)
Additional Information:	5641/49079
Uncontrolled Keywords:	Chemical composition, essential oil, piper maingayi, antioxidant, antityrosinase , Komposisi kimia, minyak pati, piper maingay, antioksidan, antitirosinase
Subjects:	Q Science > Q Science (General)
Kulliyyahs/Centres/Divisions/Institutes (Can select more than one option. Press CONTROL button):	Kulliyyah of Science > Department of Chemistry
Depositing User:	Dr Deny Susanti Darnis
Date Deposited:	24 Feb 2016 14:53
Last Modified:	15 Mar 2017 17:03
URI:	http://irep.iium.edu.my/id/eprint/49097

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