Antioxidant Properties and Potentiality of Silver Nanoparticles Biosynthesis of Thirty-Five Edible Bangladeshi Fruits

Abstract

A comparison of total polyphenols (TP) and flavonoids (TF) contents, antioxidant activity, and silver nanoparticles (AgNPs) biosynthesis potentiality of 35 common edible fruits in Bangladesh were studied. Among the fruits, Emblica officinalis showed the highest content of TP (89 mg gallic acid equivalent (GAE)/g powder), reducing power (OD, 1.98 at 1 mg powder/ml), and 2,2-diphenyl-1-picrylhydrazyl (DPPH)-free radical scavenging activity (95.6% at 0.5 mg powder/ml) whereas the highest content (17.3 mg (+)-catechin equivalent (CE)/g powder) of TF was recorded in Garcinia cowa. The inhibitory concentration 50 (IC50) for DPPH-free radical scavenging of Annona reticulata, E. officinalis, G. cowa, Phoenix sylvestris, Psidium guajava and Syzygium cumini were 180, 21.8, 172, 188.9, 162.4 and 176.2 μg powder/ml, respectively. Litchi chinensis showed the highest total antioxidant capacity (79 mg GAE/g powder) followed by E. officinalis (69 mg GAE/g powder). The fruits showed a very strong correlation (r2 = 0.99) between TP and reducing power. P. guajava showed the highest potentiality (OD, 0.74 at 10 mg powder/ml) in the biosynthesis of AgNPs followed by S. cumini, A. reticulata and P. sylvestris. Therefore, most potential five fruits should be graded as E. officinalis > S. cumini > P. guajava > A. reticulata > P. sylvestris. Bangladesh J. Bot. 50(3): 445-451, 2021 (September)

Antioxidant Activity and Capacity of Silver Nanoparticles Biosynthesis of Common Fruits Aqueous Extracts of the Sundarban Forest

“…In this study, the highest correlation (r 2 = 0.97) was observed between TPH and the reducing power of the fruits. Similar results were also reported for common fruits (Alam et al, 2021) and leafy vegetables (Hossain et al, 2015) in Bangladesh. The total polyphenol of the fruits also exhibited a strong correlation (r 2 = 0.85) with total antioxidant capacity, and also with DPPH radical scavenging (r 2 = 0.82) (Figure 2).…”

“…Health-promoting anti-microbial, anti-cancer, anti-diabetic, anti-aging and cardioprotective effects of polyphenols were reported (Pandey & Rizvi, 2009;Daglia, 2012). However among the edible Bangladeshi fruits, non-mangrove fruit of Emblica officinalis showed the highest content of polyphenols (89 mg GAE/g powder) (Alam et al, 2021), which is larger than mangrove fruit of S. apetala (46 mg GAE/g powder).…”

Sonneratia apetala (Buch.-Ham.) Fruit Extracts Ameliorate Iron Overload and Iron-Induced Oxidative Stress in Mice

“…Various fruits are common sources of dietary bioactive components such as polyphenols, flavonoids, anthocya-nins, vitamins, antioxidants and alkaloids, which can be used as nutraceuticals in public health and treating various diseases. Antioxidant, anti-amylase, anti-glucosidase and anti-allergic activities of common edible fruits in Bangladesh have been reported (Hossain et al, 2008;Alam et al, 2021). Edible mangrove fruits with potentially high antioxidant, anti-bacterial, anti-diarrheal, analgesic and anthelmintic activities were also reported from the Sundarbans mangrove forest of Bangladesh (Hossain et al, 2013(Hossain et al, , 2016a(Hossain et al, , 2017Hosen et al, 2020Hosen et al, , 2021Biswas et al, 2023).…”

“…Antioxidant, anti-amylase, anti-glucosidase and anti-allergic activities of common edible fruits in Bangladesh have been reported (Hossain et al, 2008;Alam et al, 2021). Edible mangrove fruits with potentially high antioxidant, anti-bacterial, anti-diarrheal, analgesic and anthelmintic activities were also reported from the Sundarbans mangrove forest of Bangladesh (Hossain et al, 2013(Hossain et al, , 2016a(Hossain et al, , 2017Hosen et al, 2020Hosen et al, , 2021Biswas et al, 2023). Among 68 mangrove species occurring in the Sundarbans forest is Sonneratia apetala, whose fruit, called keora in Bengali and mangrove apple in English, is extensively consumed by coastal people mainly in Bangladesh, India, Sri Lanka, Myanmar, and Vietnam.…”

“…The fruit exhibits the following health-promoting activities: anti-diarrheal, analgesic, hepatoprotective, anti-aging, and inhibition of elastase-induced lung injury (Hossain et al, 2016a(Hossain et al, , 2017Liu et al, 2019;Yi et al, 2020;Jiang et al, 2022;Sengupta et al, 2022). Moreover, S. apetala fruit is second to Emblica officinalis in its content of polyphenols [48 mg gallic acid equivalent (GAE)/g powder] among the edible fruits in Bangladesh (Hosen et al, 2021). Various food products such as jam, jelly, pickles, tonic, and soup are prepared using the fruit.…”