Background:
The consumption of natural antioxidants is increasing due to the demand and
tendency to natural foods. Punica granatum L. [Punicaceae] is a fruit with various bioactive
ingredients. The effectiveness of this plant has been proved against various disorders such as
hyperglycemia, hyperlipidemia, blood coagulation, infections, cancer, and dentistry. Among
them, there are numerous researches on antimicrobial and antioxidant properties. Subsequently,
the present study aimed to compile a review of those properties to outline this herb as a possible
natural antioxidant and preservative.
Methods:
Synchronically, keywords "Punica granatum" with antimicrobial, or antibacterial,
antifungal, antiviral, antioxidant and radical scavenging were searched through "Scopus"
database up to 31st September 2019. Papers focusing on agriculture, genetics, chemistry, and
environmental sciences were excluded and also related papers were collected.
Results:
Among 201 papers focusing on related activities, 111 papers have dealt with antioxidant
activities focusing based on DPPH assay, 59 with antibacterial, on both gram+
and gram-
bacteria,
24 with antifungal effects, mostly on Aspergillus niger and Candida albicans, and 7 papers with
antiviral activities. There were about 50 papers focusing on in-vivo antioxidant activities of this
plant.
Conclusion:
Taken together, botanical parts of P. granatum have possessed notable radical
scavenging and antimicrobial activities that with these properties, this plant can be introduced as
a natural safe source of preservative and antioxidant. Accordingly, P. granatum can be applied as
excipient with the aforementioned properties in the pharmaceutical and food industries.
Composition and content of phenolic acids in fruit juice and flowers of Punica granatum L.