Title |
Infrared spectroscopy as a rapid tool to detect methylglyoxal and antibacterial activity in Australian honeys
|
---|---|
Published in |
Food Chemistry, September 2014
|
DOI | 10.1016/j.foodchem.2014.09.067 |
Pubmed ID | |
Authors |
Yasmina Sultanbawa, Daniel Cozzolino, Steve Fuller, Andrew Cusack, Margaret Currie, Heather Smyth |
Abstract |
Methylglyoxal (2-oxopropanal) is a compound known to contribute to the non-peroxide antimicrobial activity of honeys. The feasibility of using infrared spectroscopy as a predictive tool for honey antibacterial activity and methylglyoxal content was assessed. A linear relationship was found between methylglyoxal content (279-1755 mg/kg) in Leptospermum polygalifolium honeys and bacterial inhibition for Escherichiacoli (R(2) = 0.80) and Staphylococcusaureus (R(2) = 0.64). A good prediction of methylglyoxal (R(2) 0.75) content in honey was achieved using spectroscopic data from the mid infrared (MIR) range in combination with partial least squares regression. These results indicate that robust predictive equations could be developed using MIR for commercial application where the prediction of bacterial inhibition is needed to 'value' honeys with methylglyoxal contents in excess of 200mg/kg. |
Mendeley readers
Geographical breakdown
Country | Count | As % |
---|---|---|
Unknown | 58 | 100% |
Demographic breakdown
Readers by professional status | Count | As % |
---|---|---|
Student > Master | 10 | 17% |
Student > Ph. D. Student | 9 | 16% |
Student > Bachelor | 6 | 10% |
Researcher | 6 | 10% |
Professor > Associate Professor | 5 | 9% |
Other | 9 | 16% |
Unknown | 13 | 22% |
Readers by discipline | Count | As % |
---|---|---|
Agricultural and Biological Sciences | 19 | 33% |
Chemistry | 7 | 12% |
Pharmacology, Toxicology and Pharmaceutical Science | 3 | 5% |
Veterinary Science and Veterinary Medicine | 3 | 5% |
Psychology | 2 | 3% |
Other | 8 | 14% |
Unknown | 16 | 28% |