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Synthesis of Silver Nanoparticles Using Low-Grade Date Syrup for Production of
Active Edible Films
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Abstract: Nowadays more researchers are giving more attention toward eco-friendly biosynthesis of green silver
nanoparticles. In this study, the possible role of bioactive compounds date syrup extract in reducing
silver nitrate into silver nanoparticles is highlighted. These biosynthesized nanoparticles were
characterized with the help of UV-visible spectrophotometer, atomic absorption spectroscopy and FTIR
spectroscopy. It was observed that date extract can reduce silver ions into silver nanoparticles within
26 min. of reaction time. The intense peaks centered near 420 nm by UV-analysis, affirmed the
reduction of Ag+ to Ag0. ASS analysis showed decrease in concentration of Ag+ ions from 5.6 ppm to
0.04 ppm with 26 min. FTIR measurements confirms the presence of CH3 and CH2 stretching, C = O
carbonyl group, C - S stretch and OH stretching in the analysis which exist in bioactive compounds of
date syrup extract, such as phenols, all act as reducing and stabilizing agents for silver nanoparticles
and protect it from further changes. Antibacterial activity of these synthesized nanoparticles was studied
against gram positive and negative pathogenic bacteria. Additionally, an edible films of pectin
reinforced with AgNPs were prepared to evaluate its antibacterial efficiency to be used as food
packaging materials. The findings suggest that antibacterial activity of biosynthesized AgNPs from date
fruit shows a promising zone of inhibition pathogenic bacteria. Also, results exhibited clear
bacteriostatic activity of pactin/AgNPs blend films against all microbes tested after 5 weeks of storage
a meat patty samples at 4oC and its decreasing diminution reached to about eight-fold the decreasing of
control sample
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| Publication year |
2021
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| Pages |
603-611
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| Availability location |
2706 -7947
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| Availability number |
ISSN: 2077- 4613
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| Organization Name |
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| Author(s) from ARC |
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| External authors (outside ARC) |
أمجد أحمد القاضي
معهد بحوث تكنولوجيا الأغذية
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| Publication Type |
Journal
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