Tea Tree oil (TTO)
is available in many brands by several famous companies with the promise that
it cures most of the skin ailments like Acne and Psoriasis because of its
antibacterial and antifungal activity. Australia is the biggest producer of
TTO. It is claimed to be active against MRSA a deadly pathogen. Besides, it has
been incorporated in products as antimicrobial laundry freshener, antidandruff
shampoos, acne face wash, natural deodorant and household cleaners.
Our study on 550 strains of bacteria causing topical
infections, Candida albicans for comparing TTO with 8 topical antibiotics
(polymyxin B sulfate, gentamicin, nitrofurantoin, tetracycline,
chloramphenicol, cotrimoxazole, ciprofloxacin, and novobiocin) revealed that
gentamicin was the most effective antibiotic followed by chloramphenicol,
ciprofloxacin, nitrofurantoin and polymyxin B inhibiting 87.1%, 84.8%, 76.8%,
75% and 72.8% strains, respectively. Tea tree oil (at 1 μL/ mL) could inhibit
the growth of 20.5% strains. Only 10% of multiple drug resistant (MDR) were
sensitive to TTO. Though TTO is a broad-spectrum antimicrobial active on 26 out
of 44 genera of bacteria is a less promising antimicrobial than antibiotics on
MDR strains. The TTO is to be said very effective against staphylococci but
this study revealed that in vitro only 12% staphylococci were sensitive to TTO.
It is claimed that 5% TTO formulations are highly effective, no doubt in
vitro 5% TTO can kill many of the bacteria but when applied to skin and
bacteria causing infection are hiding a little deeper in the skin and at that
site how much concentration of TTO reaches and in that concentration, how toxic
is TTO to host cells?
कितना कारगर जीवाणुनाशक है टी
ट्री का तेल?:
कितना सच कितना भ्रम?
टी ट्री के
तेल को मुहाँसो और त्वचा के रोगों की बहुत कारगर दवा के तौर पर जाना जाता हैं और
बहुत सी कंपनियाँ इसे बेच रही हैं. आस्ट्रेलिया टी ट्री तेल का सबसे बड़ा उत्पादक
देश है. परंतु त्वचा में इंफेक्सन करने
वाले 500
से ज़्यादा जीवाणुओ पर लैब में टेस्ट करने पर क्या मिला? सिर्फ़ 20% बॅक्टीरिया ही टी ट्री
के तेल से प्रभावित हुए और जो बॅक्टीरिया 3-5 एंटी बायोटिक्स के लिए
रेज़िस्टेंट थे उन पर तो ये तेल और भी कम प्रभावी था. अध्ययन से पता चला कि टी ट्री
तेल सबसे कम प्रभावी एंटी-बायोटिक नोवो-बायोसिन से भी कम असरदार था.
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