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5335843 
Journal Article 
The Antimicrobial Effects of Thyme, Garlic and Basil Oleoresins Against Bacillus coagulans in Tomato Sauce 
Ergun, AR; Baysal, T 
2017 
Yes 
Journal of Food Biochemistry
ISSN: 0145-8884 
41 
2 
WOS:000399359100010 
The antimicrobial activities of thyme (Thymus serpyllum), basil (Ocimum basilicum) and garlic (Allium sativum) oleoresins against Bacillus coagulans in a tomato based sauce was investigated.The inhibitory and bactericidal effects of oleoresins against B. coagulans ATCC 7050 were tested in the sauce media (pH 4.2 and degrees Brix (soluble solids content) 10). As a result, thymol as a major component of thyme oleoresin similar to its essential oil; estragol, eugenol, and eucolyptol for basil, and octadecanoic acid and oleic acid for the garlic oleoresin were identified with gas chromatography-mass spectrometry (GC-MS). Minumum inhibition concentrations (MIC) were found as 2.5 ml, 1.25 ml, and 1.25 ml/100 ml sauce for the thyme, basil, and garlic oleoresins, respectively. These findings demonstrated that basil and garlic have the same inhibitory effects against bacteria and were more effective than thyme in the tomato based sauce. In addition at the the end of 8 h, with thyme, basil and garlic oleoresins 3.20, 2.50 and 2.56 log reductions were provided. Practical ApplicationsOleoresins have similar compositions to essential oils. There is limited study about oleoresins especially for in vitro studies. MIC values were found as 2.5 ml, 1.25 ml, 1.25 ml/100 ml sauce for thyme, basil, garlic for B. coagulans, respectively. Oleoresins have antimicrobial effects and could be used in sauces and other industrial food products. In addition oleoresins could be used for further researches. They have a potential alternative to preservatives with their inhibitory and bacterisidal activities.