Functional, antioxidant, antimicrobial potential and food safety applications of Curcuma longa and Cuminum cyminum

Abstract

Turmeric (Curcuma longa) and Cumin (Cuminum cyminum) seeds are common spices used in foods and are necessary commodity of kitchens. They have known potential in health and pharmacentical industries. In present study, we explored the antibacterial, antifungal, antioxidant and functional properties of turmeric and cumin seeds extracts. The extracts were also used against Escherichia coli in active packaging for pathogen control and food safety. It was found in the study that, phlobatannins, flavonoids, alkaloids and quinon were absent while the coumarin and terpenoids were present in cumin, whereas turmeric was found rich in phlobatannins, flavonoids, alkaloids, terpenoids and quinon except coumarin, which was found absent. The total phenolic contents of cumin and turmeric were estimated as 51.2 mg/g and 20 mg/g of dry weight equivalent to gallic acid. The DPPH radical scavenging activity of 44% and 46% were recorded for cumin and turmeric respectively. The FTIR analysis established the presence of different functional groups preliminary confirmed by chemical analysis. Both cumin and turmeric were found active against a group of pathogenic bacteria including, Salmonella typhi, Pseudomonas aeruginosa, Staphylococcus aurous and Escherichia coli. Enhanced antibacterial activity of cumin was noted compared to turmeric extracts. Both extracts were found active against different fungal species, Mucor mucedo, Aspergillus flavus, Aspergillus niger and Saccharomyces boulardii. Cumin and Turmeric extracts incorporated in alginate-based film for packaging and foodborne pathogens control in meat were found reducing the number of pathogenic bacteria E. coli.

Antibacterial Effects of Some Common Spices against the Growth of Staphylococcus aureus Under Laboratory Conditions

“…For example, it is documented that C. longa has growth inhibiting properties against different bacteria like, Salmonella typhi and S. aurous. 30 We found that T. ammi possessed antibacterial properties against S. aureus at all provided concentrations (5%, 10% and 15%). These results are coherent with the study that described the antimicrobial activity of this spice against S. aureus and E. coli.…”

Elucidating Therapeutic and Biological Potential of Berberis baluchistanica Ahrendt Bark, Leaf, and Root Extracts

“…In maceration extraction, 200 g of fine grounded powder was used for extraction using 2 L ethanol as solvent with 1:10 ratio, following standard procedures described by Akbar et al (2019a) . The process was conducted in a dark room to avoid light exposure.…”

“…The antibacterial activity of B. baluchistanica bark, leaf, and root extracts was determined by using agar well diffusion method ( Akbar et al, 2019a ). Freshly prepared sterilized culture media were inoculated with the target bacterial strains ( Bacillus subtilis , Bacillus licheniformis , Escherichia coli , Klebsiella pneumoniae , Pseudomonas aeruginosa , Rhodococcus erythropolis , Salmonella typhi , and Staphylococcus aureus ) and incubated at 37°C for 24 h. The target bacterial cultures were spread over the surface of sterilized Muller Hinton Agar (Oxoid, UK) plates with the help of a sterilized cotton swab for the determination of antibacterial activity.…”

“…The antifungal activities of the extract of B. baluchistanica was determined by agar well diffusion method following Akbar et al (2019a) . Briefly, 2 ml of each extract was dissolved in DMSO and transferred to freshly prepared 35-ml potato dextrose agar (Oxoid UK), shaken properly, and poured into petri plates.…”

Elucidating antiviral activity of Curcuma longa against H9 N2 influenza virus using embryonated chicken egg model

“…Curcumin is the main active ingredient and is well known for its use in food industry as preservative and colouring agent. It is also belived as potential antimicrobial, antioxidant and antiinflammatory agent (Han et al, 2018;Akbar et al, 2019;Praditya et al, 2019). It has also been tested previously against Chikungunya virus, Zika virus, human immunodeficiency virus (HIV) and influenza type A (Dai et al, 2018).…”