Antimicrobial activity of turmeric extract and its potential use in food industry

Abstract

The present study investigates the antimicrobial and preservative potentials of turmeric extracts for food industry. Turmeric extracts prepared in n-hexane, water, chloroform and ethanol were applied to meals as preservatives and antibacterial agent. The samples were assessed microbiologically (total bacterial, total fungal and total coliform counts) and organoleptically (color, odor, taste) at day zero and after 15 days intervals. Meals autoclaved for shorter time (5 min) and treated with combination of 1 % or 2 % turmeric extract preserved for longer period. These results were comparable with samples autoclaved for longer period (15 min) with out turmeric extract. The antibacterial activities of different turmeric extracts were also tested against Escherichia coli, Staphylococcus aureus, Salmonella typhi and Candida albicans by disc diffusion method. Water extracted samples of turmeric stored at room temperature inhibited the growth of Escherichia coli and Salmonella typhi while aqueous extract autoclaved at 121 °C for 30 min reduced the growth of Escherichia coli and Staphylococcus aureus. Methanol extracted samples stored at room temperature or autoclaved at 121 °C was effective to control the growth of all microbes under study. Chloroform and n-hexane extracts (stored at room temperature) showed weak activity against all tested microbes.

Antimicrobial Resistance and the Alternative Resources with Special Emphasis on Plant-Based Antimicrobials—A Review

“…Typhi, E. coli [49]3. Allium sativum Organosulphur compounds (Phenolic compounds), Allicin Campylobacter jejuni , MDR E. coli , C. albican , Entamoeba histolytica , Giardia lamblia [50,51]4. Angelica lucida L.Coumarins S. viridians , S. mutans [33]5. Chelidonian majus Glycoprotein B. cereus , Staphylococcus spp.[52]6. Cinnamomum spp.Cinnamaldehyde (essential oil) Legionella pneumophila , MDR E. coli , C. albican , K. pneumoniae [53]7. Cirsium hypoleucum Flavones MDR K. pneumoniae [31]8. Curcuma longa Curcuminoid (A phenolic compound), turmerone, curlone, Essential oil, curcumins, turmeric oil S. typhi , E. coli , S. aureus , B. cereus , B. subtilis , Ps. aeruginosa , B. coagulans , A. niger , P. digitatum , Antifungal and antiviral activity[54]9. Cymbopogan citratus Essential oil C. albicals , Aspergillus flavus , A. parasiticus [36]10. Galium fissurense Flavones MDR K. pneumoniae [31]…”

Antibacterial Action of Curcumin against Staphylococcus aureus: A Brief Review

“…These findings are interesting since curcumin is naturally derived from turmeric, which is one of the major ingredients of Asian cuisine [1, 23]. Of note, crude turmeric extracts have previously shown marked antibacterial activities against S. aureus [6, 65, 66]. This section discusses the synergistic antibacterial activity of curcumin with antibiotics against MSSA and MRSA.…”

Effect of Packaging Materials and Essential Oils on the Storage Stability of Burfi, a Dairy Dessert

“…Presence of herbal essential oil in herbal burfi samples might be the reason for this. Gul et al [14] reported turmeric possessed better antibacterial activity against a wide range of microbes. Kalaycıoğlu et al [19] reported anti-microbial activity of chitosan film incorporated with turmeric extract.…”