In vitro antimicrobial activities of Bidens pilosa and Moringa oleifera leaf extracts and their effects on ground beef quality during cold storage. Issue 4 (1st October 2016)

• Record Type: Journal Article
• Authors: Falowo, A. B.; Muchenje, V.; Hugo, C. J.; Charimba, G.
• Is Part Of: CyTA: journal of food. Volume 14:Issue 4(2016)
• Page Start: 541
• Page End: 546
• Publication Date: 2016-10-01
• Subjects: Bacteria -- Biden pilosa extract -- BHT -- meat quality -- Moringa oleifera extract; Bacteria -- extracto de Biden pilosa -- BHT -- calidad de la carne -- extracto de Moringa oleifera; Food -- Periodicals; Nutrition -- Periodicals; Food -- Research -- Periodicals; 641.05
• DOI: 10.1080/19476337.2016.1162847
• Languages: English
• ISSNs: 1947-6337

Abstract

ABSTRACT: This study determined the activities of Bidens pilosa and Moringa oleifera leaf extracts on microbial count of ground beef during 6-day cold storage. Fresh ground beef sample was treated with butylated hydroxytoluene (BHT) (0.2 g/kg), M. oleifera (ML, 1 g/kg) and B. pilosa (BP, 1 g/kg) leaf extracts and compared with the control. The result of the phytochemical contents revealed that ML extract had higher phenolic and flavonoid contents than BP extract ( p > 0.05). The antibacterial assay of the extracts revealed an appreciable broad-spectrum activity against tested bacteria with minimum inhibitory concentrations between 0.6 and 10.0 mg/mL. Addition of ML leaf extract to ground beef sample lowered total viable and lactic acid bacteria ( p < 0.05) counts than control and BHT treatments at day 3 of storage. These results suggest that ML leaf extract could be used as potential sources of natural antimicrobial agent in meat products.