Antimicrobial effect of nanofluid including Zinc oxide (ZnO) nanoparticles and Mentha pulegium essential oil
Journal Title: Journal of Applied Biology & Biotechnology - Year 2016, Vol 4, Issue 4
Abstract
This study was carried out to evaluate the in vitro antibacterial activity of nanofluid based on Mentha pulegium essential oil and Zinc oxide (ZnO) nanoparticles (NPs) against different bacterial species. The essential oil was obtained by hydro-distillation using Clevenger and then ZnO NPs were added at the rates 0, 300, 500 and 1000 ppm to prepare nanofluids. The agar disk diffusion and micro-dilution methods were used to study the antibacterial activity. Minimum inhibitory concentration (MIC) against B. cereus, S. aureus, S. entrica and E. coli was determined respectively 7.8, 3.9, 15.6 and 62.5 ppm for ZnO NPs. Minimum bactericidal concentration (MBC) against the mentioned bacteria was respectively 15.6, 7.8, 31.2 and 125 ppm for ZnO NPs. S. aureus and E. coli were respectively the most and the least sensitive species. ZnO nanoparticles improved the antibacterial activity of M. pulegium essential oil which shows the potent application of the particles in different industries like food packaging, food and pharmaceutical systems.
Inulinase production in shake-flask fermentations from Mucor circinelloides BGPUP-9
In the present study, an inulinase producing fungal isolate BGPUP-9 was isolated from inulin-rich root tubers of Asparagus racemosus. On the basis of morphological characterization and 18S rRNA gene sequencing, fungal is...
Effects of modulation dietary gelatinized cornstarch/protein ratio on growth performance, feed utilization, and body composition of tilapia Oreochromis niloticus fingerlings
A 56-day feeding experiment was conducted to determine the effects of modulated dietary gelatinized maize starch with protein level on the growth and feed utilization of juvenile Oreochromis niloticus. Four experimental...
Morel Culture Study Part I: Morchela sp. mycelial growth and nutrient-primed mycelia
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In vitro studies of Asian medicinal plants with potential activity against breast cancer
Breast cancer is the most common cause of cancer in women, and the side effects reported for conventional treatments have motivated scientists to investigate the anticancer properties of natural products such as medicina...
Effect of various dietary fats supplementation on the liver glycogen, protein and digestive enzymes activities in striped murrel, Channa striatus
A 84-days experiment was conducted to observe the effects of different feeds rich with various types of fats on selected biochemical parameters of Channa striatus grow-outs. There were seven treatments (F1, L3HUF; F2, H3...