In vitro antioxidant activity and Content of compounds from Curculigo orchioides rhizome

Hue University Journal of Science: Natural Science - 2020
Le Trung Hieu1, Le Lam Son1, Nguyen Thi Nguyet2, Nguyen Minh Nhung3, Ho Xuan Anh Vu3, Nguyen Quang Man4, Le Thuy Trang1, Tran Thanh Minh1, Tran Thi Van Thi1
1University of Sciences, Hue University, 77 Nguyen Hue St., Hue, Vietnam
2Thuan An high school, 73 Kinh Duong Vuong St., Thuan An, Phu Vang, Thua Thien Hue, Vietnam
3Technical Center for Quality Measurement Standards, Department of Science and Technology of Thua Thien Hue, Vy Da, Hue, Vietnam
4University of Medicine and Pharmacy, Hue University, 6 Ngo Quyen St., Hue, Vietnam

Tóm tắt

Curculigo orchioides Gaertn. is used in traditional medicine in Vietnam. Its antioxidant potential was evaluated through DPPH radical scavenging and the total antioxidant capacity method. The data resulted from DPPH radical scavenging activity indicate that Curculigo orchioides display high activity with a low IC50 value (22.78μg/mL), approximately 1.5 times less than that of curcumin (34.34 μg/mL). The total antioxidant capacity of the extract is equivalent to 132.48 ± 1.48 mg GA/g or 264.45 ± 2.34 μmol AS/g. The composition of Curculigo orchioides, including the total phenolic, total flavonoid, polysaccharides, and triterpenoid saponins, was examined by using the colorimetric method with reagents, and their quantity is equivalent to 196.24 ± 1.45 mg GAE/g, 78.49 ± 1.78 mg QE/g, 4.34 ± 0.08 %, 47.60 ± 0.24 mg Rb1/g (Rb1: Gypenoside III), respectively. Specifically, the total triterpenoid saponins content of Curculigo orchioides has been reported for the first time.

Từ khóa

#Curculigo orchioides #antioxidant activity #polysaccharide #saponin – triterpenoids #total phenolic content #total flavonoid content.

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Hue University Journal of Science: Natural Science

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