Phytoconstituents, bioactivity and antioxidant potential of some commercial brinjal (Solanum melongena L.) cultivars of Bangladesh

Abstract

Comparative phytochemical composition, antibacterial activity, cytotoxicity and antioxidant potentiality of seven brinjal cultivars Solanum melongena L. were determined. Strong presence of carbohydrates, phenolic glycosides and weak presence of alkaloids, falvonoids, tannins, terpenoids, steroids and saponins were recorded in all the brinjal varieties. Antibacterial assay of brinjal extracts showed varying degree of sensitivity against both gram-positive and gramnegative bacteria. In cytotoxicity assay, the LC 50 values ranged between 59.91 to 216.45 mg/ml after 6 hours was an indication of poor cytotoxic potential of brinjal cultivars. The DPPH free radical scavenging activity ranged between 80.79% to 87.64 although the phenolic content was found between 6.082 to 9.292 mg GAE/g among the brinjal cultivars.

Health benefits and bioactive compounds of eggplant

“…The antibacterial properties of methanolic extracts of eggplant fruits have been tested and shown to be effective against S. aureus, V. cholera, B. subtilis, B. cereus, E. coli and Pseudomonas sp. (Ahmed, Mubassara & Sultana, 2016). Although the results are promising, more studies are needed on the bioactive compounds of eggplant extracts and their possible mechanisms of action against cancer cells.…”

Evaluation of physicochemical properties and microbial counts of raw and cooked low‐fat patties added with eggplant powder prepared with different drying methods

“…Ahmed et al . (2016) have stated that EP from different variety could inhibit the growth of Bacillus cereus, Bacillus subtilis, Escherichia coli and Pseudomonas sp. They also found the flavonoids, terpenoids, steroids, saponins and glycosides in EP.…”

“…Organic acids of EP such as oxalic, quinic, malic and fumaric could work as antibacterial. Ahmed et al (2016) have stated that EP from different variety could inhibit the growth of Bacillus cereus, Bacillus subtilis, Escherichia coli and Means with different superscript among the storage days are different (p < 0.05). *TPC (total plate count) for total bacteria, VRB (Volatile Red Bile) for total Enterobactericeae Treatment: control (CTL), without addition of antioxidant; reference (REF), added with 0.1% ascorbic acid; O1, added with 0.25% oven-dried (OD) EP; O2, added with 0.5% ODEP; F1, added with 0.25% freeze-dried (FD) EP; and F2, added with 0.5% FDEP.…”

The Effect of Fertilization by Humic Acid and Foliar Spraying with Nano-Micro-Nutrients on the Productive Traits of Solanum melongena L.

“…Furthermore, eggplant showed a practical effect against various bacteria such as Escherichia coli, Staphylococcus aureus, Bacillus subtilis, Vibrio cholera and Pseudomonas sp. and B. cereus (Ahmed et al, 2016). Current studies aim to investigate the effect of individual and joint addition of humic acid, nano zinc oxide, and nano iron oxide on the vegetative traits of eggplant, as well as investigate the optimal concentration of nanomaterials used, which gives the best averages for the traits under study.…”