Comparison of Volatile Compounds Profile and Antioxydant Activity of Allium sativum Essential Oils Extracted using Hydrodistillation, Ultrasound- Assisted and Sono-Hydrodistillation Processes

Indian Journal of Pharmaceutical Education and Research

  • Zakia Boubechiche1Ecole Nationale Supérieure Agronomique, 16200 Alger, ALGÉRIE., 2Ecole Nationale Supérieure des Sciences de la Mer et l’Aménagement du Littoral, 16000 Alger, ALGÉRIE.
  • Nour-Eddine Chihib3Université de Lille1, CNRS, INRA, UMR 8207-UMET-PIHM, 369 rue Jules Guesde, CS 20039, 59651 Villeneuve d'Ascq, FRANCE.
  • Charafeddine Jama4Université de Lille1, CNRS, ENSCL, UMR 8207-UMET-PSI, Avenue Dimitri Mendeleïev, CS 90108 59652 Villeneuve d'Ascq, FRANCE.
  • Amina Hellal5Laboratoire des Sciences et Techniques de l’Environnement, Ecole Nationale Polytechnique, 16200. Alger, ALGÉRIE.

Volume 51 Issue 3s1 Pages s281-s285

DOI: 10.5530/ijper.51.3s.30

Abstract

Objective: This work aims to evaluate the impact of the use of ultrasound during essential oils extraction from garlic bulbs. Material and methods: The essential oils were extracted by Conventional Hydrodistillation method (HD), Ultrasound-Assisted hydro-distillation (US-HD) and Sono-hydrodistillation (SHD) and compared using yield profile, chemical composition and antioxidant activity. Results: Higher performances were obtained when the direct application of ultrasound were used. Indeed, SHD allowed a higher yield after only 30 min of extraction time against 70 min and 90 min for the US-HD and the HD respectively. Among the total identified compounds by GC/MS, Sulphur compounds were found to be the most abundant with qualitative similarities for the three processes. Essential oils showed a potential DPPH radical scavenging activity with IC50 values of 0.96, 1.17 and 1.23 respectively for the three HD, US-HD and SHD processes. Conclusion: The use of ultrasound for the extraction of essential oil from garlic reduced extraction time without causing significant changes in volatile composition and antioxidant activity.

Keywords

  • Garlic essential oil
  • GC-MS
  • Antioxidant activity
  • Hydrodistillation
  • Ultrasound
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