Abstract
White turmeric (Curcuma aromatica Salisb.) has been widely used as a traditional herbal drug both in Vietnam and other Asian countries. In this study, the essential oil of white turmeric rhizomes (collected from Dien Bien province) was extracted and evaluated for its chemical composition and antibacterial potential against E. coli and S. aureus. The raw material was 82.48% in moisture and was steam distilled within 3 days from collection at a 0.4 kg L-1 ratio of raw material/equipment volume for 180 minutes. Under these conditions, the essential oil accounted for about 0.3% of the raw material. The GC-MS analysis showed that the composition of the essential oil consisted of more than 46 substances including a-zingiberene, 17.85%; β-sesquiphellandrene, 13.28%; and ar-curcumene, 9.45%. The white turmeric essential oil exhibited antibacterial activity against gram-positive strains of S. aureus with an inhibition zone diameter of 8.0mm but did not inhibit gram-negative strains of E. coli. Importantly, white turmeric essential oil at a concentration of 0.25% could extend the shelf life of mangoes by at least 5 days more than the control samples.
Highlights
White turmeric, or Curcuma aromatica Salisb., belongs to the ginger family and has vigorous yellowish rhizomes that grow around the roots
We found only one research team at Thai Nguyen University of Agriculture and Forestry that has carried out an experiment using Curcuma longa essential oils for food preservation
The results showed that a 0.5% concentration of yellow turmeric essential oil allows good preservation of mangoes for 10 days (Tran & Hoang, 2015)
Summary
Curcuma aromatica Salisb., belongs to the ginger family and has vigorous yellowish rhizomes that grow around the roots. Curcuma aromatica has been shown to improve health by capturing free radicals (Al-reza et al, 2010) and has an immunomodulatory effect (Ahmed et al, 2008). It has long been used as a tonic, and a treatment for bruises, sprains, and snake bites (Rajkumari & Sanatombi, 2018). White turmeric and its extracts have many different pharmacological effects including antiinflammatory, wound healing, antioxidant and free radical scavenging, anti-tumor, anti-cough, and kidney detox (Sinoriya et al, 2018)
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
