2021, Vol. 9 Issue 2, Part A
Evaluating the effects of kānuka essential oil (Kunzea ericoides) grown in different locations in New Zealand on two pathogenic dermatophytes: An in vitro study
AUTHOR(S): Dr. Wendy Maddocks, Dr. Ayelen Tayagui, Briar Collins, Olivia Williams and Dr. Ashley Garrill
ABSTRACT:Kānuka (Kunzea ericoides (A. rich) Joy Thomps.), an endemic tree throughout New Zealand (NZ), has demonstrated anti-fungal, anti-bacterial effects, antispasmodic and anti-inflammatory actions. We tested commercially available kānuka oils from various NZ locations against two pathogenic fungi Trichophyton rubrum and Microsporum canis. All the oils reduced radial mycelial extension in a dose dependent manner. The most effective oils, sourced from Great Barrier Island (K2) and East Coast North Island (K3), gave IC50 values of 0.67 (K2), 0.7 (K3) and 2.7 (K2, K3) (v/v) for M. canis and T. rubrum respectively, the least effective was from Coromandel (K4) with IC50 values of 6.3% and 16.8% respectively. At 1% (v/v), K4 significantly increased growth of T. rubrum. Significant variations were observed in (α)-pinene (60.12%-74.34%) and linalool (1.93%-4.45%). Our results suggest that the geographical location of the kānuka plants can affect the α-pinene and linalool constituents and thus the efficacy of the oils towards dermatophyte fungi.
Pages: 28-33 | 346 Views 25 Downloads
How to cite this article:
Dr. Wendy Maddocks, Dr. Ayelen Tayagui, Briar Collins, Olivia Williams, Dr. Ashley Garrill. Evaluating the effects of kānuka essential oil (Kunzea ericoides) grown in different locations in New Zealand on two pathogenic dermatophytes: An in vitro study. Am J Essent Oil Nat Prod 2021;9(2):28-33.