In vitro biological activity and essential oil composition of four indigenous South African Helichrysum species

Lourens, Anna C.U.; Reddy, D. Maheswara; Başer, Kemal Hüsnü Can; Viljoen, Alvaro; Vuuren, Sandy van

doi:10.1016/j.jep.2004.07.027

Cited by 151 publications

(133 citation statements)

References 19 publications

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“…Sweet, H. excisum (Thunb.) Less., H. felinum Less., and H. petiolare (L) DC., on B. cereus and S. aureus were investigated and the acetone extract from H. dasyanthum exhibited promising antimicrobial activity (Lourens et al, 2004).…”

Section: Discussionmentioning

confidence: 99%

Antimicrobial effect ofHelichrysum plicatumsubsp.plicatum

Demir¹,

Taban

Aslan

et al. 2009

Pharmaceutical Biology

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Section: Discussionmentioning

confidence: 99%

Antimicrobial effect ofHelichrysum plicatumsubsp.plicatum

Demir¹,

Taban

Aslan

et al. 2009

Pharmaceutical Biology

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“…clove oil, cinnamon leaves, and copaiba balsam, all of which have been used as natural remedies and as fragrances. This compound is also known to have antimicrobial (Alma et al, 2003;Lourens et al, 2004), antioxidant (Lourens et al, 2004, Singh et al, 2006, anticarcinogenic (Kubo et al, 1996) and skin-penetration-enhancing properties (Cornwell & Barry, 1994). Essential oils containing this compound as a major component showed marked anti-inflammatory activity against carrageenan-and prostaglandin E 1 -induced edema in rats as well as anti-arthritic activity (Martin et al, 1993;Baricevic et al, 2001;Agarwal & Rangari, 2003).…”

Section: Myrciaria Tenella and Calycorectes Sellowianusmentioning

confidence: 99%

Anti-inflammatory activity of essential oil from leaves ofMyrciaria tenellaandCalycorectes sellowianus

Apel

Lima

Sobral

et al. 2010

Pharmaceutical Biology

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“…In Europe, infusions are prepared from inflorescences of Helichrysum because of their bile regulatory and diuretic effects (Cosar and Cubucku, 1990). In South Africa, Helichrysum species are used extensively for stress-related ailments and as dressings for wounds normally encountered in circumcision rites, bruises, cuts and sores (Grierson and Afolayan, 1999;Lourens et al, 2004).…”

Section: Introductionmentioning

confidence: 99%

In vitro time kill assessment of crude methanol extract of Helichrysum pedunculatum leaves

Aiyegoro¹,

O²,

Afolayan³

et al. 2008

Afr. J. Biotechnol.

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The in vitro antibacterial activities and time kill regimes of crude methanol extract of Helichrysum pedunculatum was assessed using standard microbiological procedures. The experiment was conducted against a panel of bacterial species made up of clinical, environmental and reference strains. The extract was active against eleven of the twenty-one bacteria tested at a concentration of 10 mg/ml. Minimum Inhibitory Concentration (MIC) values for all the susceptible bacteria ranged between 0.1 -5.0 mg/ml. The average log reduction in viable cell count in time kill assay ranged between 0.17 Log 10 to 6.37 Log 10 cfu/ml after 6 h of interaction, and between 0.14 Log 10 and 6.99 Log 10 cfu/ml after 12 h interaction in 1×MIC and 2×MIC of the extract. The extract was bactericidal against 8 of the test bacteria at 1×MIC and against 9 of the test bacteria at 2×MIC from 12 h interaction period. At both MIC levels, the extract was bactericidal to all the reference strains and four of the six environmental strains at both MIC levels after 12 h of interaction. Also the extract was bactericidal to four of the six environmental strains at both MIC levels after 12 h of interaction and bacteriostatic during the first 6 h of interaction. Inhibitory levels of crude methanol extract of H. pedunculatum could be bacteriostatic or bactericidal independent of Gram's characteristic.

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In vitro biological activity and essential oil composition of four indigenous South African Helichrysum species

Cited by 151 publications

References 19 publications

Antimicrobial effect ofHelichrysum plicatumsubsp.plicatum

Antimicrobial effect ofHelichrysum plicatumsubsp.plicatum

Anti-inflammatory activity of essential oil from leaves ofMyrciaria tenellaandCalycorectes sellowianus

In vitro time kill assessment of crude methanol extract of Helichrysum pedunculatum leaves

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