1. Antimicrobial activity, phytochemical and toxicity analyses of jambu mawar [Syzygium jambos (L.) Alston] leaf extract on shrimp and cherry tomato samples
- Author
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Ali, Salar Kadhum and Ali, Salar Kadhum
- Abstract
Infections caused by foodborne and waterborne pathogens have brought a serious attention in the last decades. In the last two decades, the discovery and development of new antimicrobial agents have been unprecedented activity. Since most of these antimicrobial agents are not applicable to apply in food productions that led most of the food manufacturers to find the alternative and that is a natural antimicrobial agent, which has no effect on the nutritional and sensory aspect of the foodstuffs and satisfy the consumer demand. Jambu mawar [Syzygium jambos (L.) Alston] is a species of the genus Syzygium, which has belonged to the family of Myrtaceae and has been reported for its medicinal uses as anti-inflammatory, antioxidant, antibacterial and hepatoprotective, and treatment of a variety of illnesses as toothache, diabetes, diuretic, diarrhea, dysentery and leprosy. The objectives of this study were to determine the antimicrobial activity and mechanism of S. jambos (L.) Alston leaf extract against foodborne pathogens namely V. parahaemolyticus ATCC17802, L. monocytogenes ATCC19112, K. pneuomoniae ATCC13773, S. aureus ATCC29737, P. mirabilis ATCC21100 and P. aeruginosa ATCC9027, and food spoilage microorganisms C. albicans ATCC10231, C. krusei ATCC32196, C. glabrata ATCC2001, C. parapsilosis ATCC22019, Asp. fumigatus ATCC26430, Asp. niger ATCC9029, Rh. oligosporus ATCC22959 and Rh. oryzae ATTC 22580, to analyses the phytochemicals, its stability and toxicity of the extract, and to evaluate the effect of the extract on microbial population in food samples. The dried leaf were extracted using ethanol as a solvent with maceration method. Antimicrobial activity against foodborne pathogens were determined using Clinical and Laboratory Standard Institute (CLSI) methods. The stability of antimicrobial activity of the extract was conducted at different pHs and temperatures. Cell constituent release and crystal violet analysis were the methods used to investigate the mechanis
- Published
- 2021