Total phenolic content and antioxidant activity of Brassica napus var. pabularia (Red Russian Kale)

Name: Sukanya Keawsa-ard

Organization : Payap University. Faculty of Pharmacy

Name: Patcharaporn Saengratwatchara

Organization : Payap University. Faculty of Pharmacy

Email : p.saengratwatchara@gmail.com

LCSH: Rape (Plant)

LCSH: Red Russian Kale

LCSH: Antioxidants

LCSH: Phenols

Abstract: Kale is a popular leafy vegetable with high contents of health-promoting compounds and used to be a mainstay of the traditional diet. There are a number of reports in the literature that mention about antioxidant and biological activities of Brassica napus var. pabularia (Red Russian Kale). The aim of this study was to determine the total phenolic content and antioxidant activity of B. napus var. pabularia leaf. The extracts were prepared by continuous maceration technique with different organic solvents namely hexane, dichloromethane, and methanol. Crude extracts were investigated for total phenolic content based on the Folin–Ciocalteu colorimetric assay. Antioxidant activity was studied using 2,2-diphenyl-1-picrylhydrazyl (DPPH) and 2,2’-azino-bis-3-ethylbenzothiazoline-6-sulfonic acid cation (ABTS) radical scavenging capacity assays. The results showed that the methanol extract gave the highest percentage yields (6.10 ± 0.37 %w/w), followed by dichloromethane (1.78 ± 0.02 %w/w) and hexane extracts (0.95 ± 0.04 %w/w). The methanol extract contained the highest total phenolic content of 68.05 ± 0.48 mg GAE/g extract and also showed the highest antioxidant activity on DPPH and ABTS radicals of 32.71 ± 0.74 and 32.47 ± 0.25 mg trolox/g extract, respectively. This study demonstrated that the polar solvent (methanol) extract has a better total phenolic content, DPPH, and ABTS radical scavenging activity than the nonpolar solvent extracts. These results indicate that the methanol extract of B. napus var. pabularia leaf may be a potential source of antioxidant agents and serves as an effective free radical scavenger. So, B. napus var. pabularia leaf could be developed as a promising and effective pharmaceutical product for several diseases caused by free radicals

King Mongkut's University of Technology North Bangkok. Central Library

Address: BANGKOK

Email: library@kmutnb.ac.th

Created: 2024

Modified: 2024-12-04

Issued: 2024-12-04

บทความ/Article

application/pdf

BibliograpyCitation : In Kasetsart University. Faculty of Science. The Pure and Applied Chemistry International Conference 2024 (PACCON 2024) (pp.802-805). Bangkok : Kasetsart University, 2024

eng

©copyrights King Mongkut's University of Technology North Bangkok

ลำดับที่.	ชื่อแฟ้มข้อมูล	ขนาดแฟ้มข้อมูล	จำนวนเข้าถึง	วัน-เวลาเข้าถึงล่าสุด
1	PACCON 2024pp.802-805.pdf	222.38 KB

ใช้เวลา

0.02479 วินาที