Cited by 42Phytochemicals and Antioxidant ActivitiesEssential Oils and Antimicrobial ActivityFree Radicals and Antioxidants

COMPARISON OF CHEMICAL COMPOSITION AND ANTIOXIDANT ACTIVITY OF GLYCOSIDICALLY BOUND AND FREE VOLATILES FROM CLOVE (EUGENIA CARYOPHYLLATA THUNB.)

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POLITEO, O., JUKIC, M., MILOS, M.·2010·Journal of Food Biochemistry

Abstract

ABSTRACT The present article reports on the chemical composition and antioxidant activity of clove glycosidically bound volatile compounds in comparison with their essential oil. The comparison of chemical composition of volatile aglycones with the chemical composition of essential oil revealed only eugenol as identical. To measure the antioxidative activity of the clove enzymatically released aglycones and its essential oil, two different assays were performed: the 2,2′-diphenyl-1-picrylhydrazyl (DPPH) radical-scavenging method and the ferric reducing/antioxidant power (FRAP) assay. Both methods showed that the clove volatile aglycones possess lower antioxidant properties than its essential oil. The volatile aglycones radical-scavenging activity measured by DPPH method was lower than butylated hydroxytoluene (BHT) and butylated hydroxyanisole (BHA) activity. The reducing capacity measured by FRAP method for volatile aglycones was lower than BHA capacity and higher than BHT capacity. Some differences in activity obtained by two methods could be explained with different solvent polarity. PRACTICAL APPLICATIONS Many secondary metabolites are glycosylated and accumulate as nonvolatile glycosides. Since the glycosides are able to release their aglycones by enzymatic hydrolysis, these compounds could be considered as possible precursors of antioxidant substances in plant. They may contribute to the total antioxidant activity of plant and could be used as natural antioxidants.

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Crossref · 10.1111/j.1745-4514.2009.00269.x

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  • In FRAP, reference eugenol had weak ability, whereas in DPPH it had considerable activity; the difference is explained by different polarity, with water-like solvents decreasing hydrogen atom-donating capability compared with ethyl alcohol used in DPPH.

    “Nevertheless in this assay the reference eugenol had weak ability, whereas in the DPPH method it possessed considerable activity. Such a difference could be explained by the different polarity for FRAP method compared with DPPH method. “Water-like” solvents induce a dramatic decrease in the hydrogen atom-donating capability in comparison with ethyl alcohol used in DPPH method [80].”
  • Eugenia caryophyllus essential oil exhibited higher DPPH and FRAP activity than the volatile aglycone fraction obtained after enzymatic hydrolysis.

    “The antioxidant measurement by DPPH and FRAP methods showed that the essential oil of Eugenia caryophyllus exhibited higher activity than the volatile aglycone fraction obtained after enzymatic hydrolysis with β-glucosidase from bitter almonds of the extract and further extraction from the aqueous layer with n-pentane [80].”

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  1. GUENTER, E. 1965. The Essential Oil, Vol. IV, pp. 396-436, Van Nostrand: New York, NY. 139

Authors
POLITEO, O., JUKIC, M., & MILOS, M.
Affiliations
University of Split (HR)
Corresponding author
POLITEO, O.
Venue
Journal of Food Biochemistry
Published
2010-02
Volume
34
Issue
1
Pages
129-141
ISSN
  • 0145-8884 (ISSN-L)
  • 1745-4514
OpenAlex
W2009862558
Cited by
42
References
29
Citations by year
2026: 3 · 2024: 2 · 2022: 2 · 2021: 4 · 2020: 4 · 2019: 1 · 2018: 1 · 2017: 3 · 2015: 4 · 2014: 5 · 2013: 2 · 2012: 5
FWCI
2.69
Type
journal article
Language
en
Open access
Locations
Journal of Food Biochemistry (publishedVersion)
Topics
  • Health Sciences › Medicine › Biochemistry › Phytochemicals and Antioxidant Activities
  • Life Sciences › Agricultural and Biological Sciences › Food Science › Essential Oils and Antimicrobial Activity
  • Physical Sciences › Chemistry › Organic Chemistry › Free Radicals and Antioxidants
Keywords
Syzygium aromaticum, glycosidically bound volatiles, essential oils, eugenol, antioxidant activity, free radical scavenging, reducing power, enzymatic hydrolysis, natural antioxidants, solvent polarity

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