TAILIEUCHUNG - Initial evaluation of antioxidant and antibacterial activities of several medicinal plant extracts collected in Vietnam

The diversity of medicinal plants in Vietnam is a rich source to develop novel health products. In this study, the antioxidant and antimicrobial activities of ethanolic extracts of Pluchea indica, Drynaria fortunei, Stephania glabra, lemongrass (Cymbopogon citratus) and lime (Citrus aurantifolia) mixture, and ginger (Zingiber officinale) and kumquat (Citrus japonica) mixture, were evaluated. | VNU Journal of Science Natural Sciences and Technology Vol. 37 No. 3 2021 50-56 Original Article Initial Evaluation of Antioxidant and Antibacterial Activities of Several Medicinal Plant Extracts Collected in Vietnam Le Tuan Anh1 Pham Thi Thanh Hang1 Nguyen Thi Bich Loan1 2 Le Quynh Mai1 1 VNU University of Science 334 Nguyen Trai Thanh Xuan Hanoi Vietnam 2 Laboratory of Therapeutical Chemistry and Pharmacognosy Université de Mons Mons Belgium Received 11 August 2021 Revised 23 August 2021 Accepted 31 August 2021 Abstract The diversity of medicinal plants in Vietnam is a rich source to develop novel health products. In this study the antioxidant and antimicrobial activities of ethanolic extracts of Pluchea indica Drynaria fortunei Stephania glabra lemongrass Cymbopogon citratus and lime Citrus aurantifolia mixture and ginger Zingiber officinale and kumquat Citrus japonica mixture were evaluated. The extract of ginger and kumquat mixture exhibited the highest free radical scavenging activity 85 followed by P. indica and S. glabra 60 and 53 respectively at the concentration of mg ml. Moreover the agar well diffusion assay revealed that the extract of S. glabra and the extract of ginger and kumquat mixture were effective in inhibition against Bacillus cereus Staphylococcus aureus and Vibrio parahaemolyticus. Especially the extract of S. glabra at the concentration of 100 mg ml showed the highest inhibition zone diameter 13 mm against B. cereus which was significantly larger than that of Ceftriaxone 5 g ml and other extracts. Keywords Medicinal plant antioxidant free radical scavenging antibacterial activity. 1. Introduction resistance. For example Staphylococcus aureus is resistant to many common antibiotics Plants contain a wide range of natural including penicillin methicillin and oxacillin bioactive compounds that are good for human 3 . In addition foodborne pathogens Bacillus health due to their antioxidant and antibacterial cereus and Vibrio .

• Sinh học
• Natural sciences and Technology
• Medicinal plant
• Free radical scavenging
• Antibacterial activity
• Cymbopogon citratus
• Natural sciences
• Technology sciences
• Vecny este epoxy alkyd
• Tính chất điện
• Độ bền dung môi
• Độ bền nhiệt
• Detailed checklist
• Field labels
• Grammitid specimens
• VNU University of Science
• Xác định biên
• Dị thường từ
• Dị thường trọng lực
• Bắc Việt Nam
• Mỡ cá tra
• Etyl cacboxylate
• Etyl biodiesel
• Este axit omega 3 6 9
• Phương pháp đồng dung môi
• Đồng dung môi
• Hợp chất chứa dị vòng
• Chất xúc tác
• Phản ứng Sonogashira
• Hợp chất dị vòng năm cạnh
• Phản ứng Click
• Nano đồng
• Nano silica
• Khả năng kháng nấm
• Pyricularia oryzae
• Rhizoctonia solani
• Phân loại thực vật
• Lạng Sơn
• Aspidistra papillata
• Plant taxonomy
• Arachniodes simplicior
• Flora of Vietnam
• New record
• Phản ứng ngưng tụ croton
• Hoạt tính kháng khuẩn
• Chương trình PASS
• Dẫn xuất thiopodand
• Vật liệu nano
• Tính chất quang
• Tính chất từ
• Vật liệu nano HoFeO3
• Cảm biến miễn dịch điện hóa
• Kháng thể IgY
• Virus Newcastle
• Bình phản ứng mini
• Xúc tác lưỡng kim loại Co2Cu2
• CI NEB cơ chế phản ứng
• Phản ứng hydrogen hóa carbon monoxide
• Bọ rùa hai mảng đỏ
• Lemnia biplagiata
• Tỷ lệ sống sót
• Tỷ lệ vào nhộng
• Năng ăn con mồi
• Chất lượng nước
• Động vật nổi
• Thành phần loài
• Kênh Bún Xáng
• Đa dạng sinh học
• Camphor
• science and technology
• scientific reports
• research projects
• scientific research
• Immune cells expansion
• Peripheral blood
• Immune cell therapy
• Natural killer cells
• Cytotoxic T lymphocytes
• Peripheral blood mononuclear cells
• genus Arisaema Mart
• Technology
• Litsea glutinosa
• Chemical composition
• Vietnamese using RFLP PCR
• Assessment of OPRM1
• Dioxin contamination
• carbazol degrading bacteria
• Obtaining Essential Oil
• Shikimic Acid
• cyanobacterial blooms
• freshwater bodies
• blood insulin secretion
• Fortunella japonica
• Docynia indica