The effect of sage herbal dust products on Listeria monocytogenes growth in minced pork
2021
Danilović, Bojana | Đorđević, Natalija | Karabegović, Ivana | Šojić, Branislav | Pavlić, Branimir | Savić, Dragiša
Valorization of waste materials became an important economical and ecological aspect of sustainable development. Sage herb has been well known for its antimicrobial properties, so its use as an antimicrobial agent has a lot of potential in the food industry. In this work, sage herbal dust essential oil obtained by hydrodistillation and supercritical fluid extraction, and supercritical fluid extract were screened for antimicrobial effect against Listeria monocytogenes ATCC 15313 in minced pork. Application of supercritical fluid extract had a lower antimicrobial effect of 1 log CFU/ml in a meat simulation medium, compared to the essential oils (2.5–3.5 log CFU/ml). On the other hand, all analyzed samples showed a statistically significant reduction of the L. monocytogenes growth in minced pork. Sage herbal dust essential oil and supercritical fluid extract have the potential for control of L. monocytogenes growth in minced pork during storage up to 6 days at refrigerating temperature. PRACTICAL APPLICATIONS: The use of natural antimicrobials as food additives can have an economic impact due to the reduction of losses caused by spoilage. The novelty of conducted research relies on the use of waste material from tea factory, for example, sage herbal dust. The application of sage herbal dust essential oil and extract can prolong the shelf life of meat products.
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