Open AccessChemical composition and in vitroantifungal activity of turmeric oilfrom Curcuma longa L. rhizomeagainst Colletotrichum spp.
Author(s) -
Phạm Trung Hiếu,
Dai Lam Tran,
Thi Nam Pham,
Vũ Đình Hoàng,
Hong Tuyen Nguyen,
Thi Hong Trinh,
Dang Quang Le
Publication year - 2021
Publication title -
tạp chí khoa học và công nghệ việt nam (b, online) (vietnam journal of science and technology - most)/tạp chí khoa học và công nghệ việt nam (điện tử)/tạp chí khoa học và công nghệ việt nam (b, print) (vietnam journal of science and technology - most)
Language(s) - English
Resource type - Journals
eISSN - 2615-9759
pISSN - 1859-4794
DOI - 10.31276/vjst.63(6).06-10
Subject(s) - curcuma , curcumin , oleoresin , fusarium oxysporum , antifungal , zingiberaceae , colletotrichum , chemistry , colletotrichum gloeosporioides , food science , colletotrichum acutatum , botany , horticulture , traditional medicine , biology , rhizome , inoculation , microbiology and biotechnology , biochemistry , medicine
The production of curcumin produces large quantities of the spent turmeric oleoresin as a by-product, which often pollutes the environment. This study was conducted to obtain turmeric oil from this by-product and evaluate its antifungal activity. Turmeric oil afforded by partitioning the turmeric oleoresin from the production of curcumin (Curcuma longa L.) with n-hexane showed a strong inhibition for Colletotrichum species. The volatile components of turmeric oil were determined by GC-MS. Then, 23 volatile compounds were identified from this oil, of which four main compounds were α-zingiberene, α-turmerone, ar-turmerone, and β-sesquiphellandrene. Besides, the authors also isolated Colletotrichum gloeosporioides from lychee fruits, which were harvested in Luc Ngan district, Bac Giang province. By poisoned food technique, the antifungal activity of turmeric oil against C. gloeosporioides, C. orbiculare, C. acutatum, Phytophthora infestans, and Fusarium oxysporum was demonstrated. The results showed that at a concentration of 1 mg/ml, turmeric oil showed the highest inhibitory effect on C. gloeosporioides (67.9%). As for other fungi, in vitro growth inhibition varied in the range of 41-62%.