Investigation Into Shelf Life of Fresh Dates and Pistachios in a Package Modified With Nano-Silver

Mousavi, Fateme Peyro; Pour, Hasan Hashemi; Nasab, Amir Heidari; Rajabalipour, Ali A.; Barouni, Mohsen

doi:10.5539/gjhs.v8n5p134

Cited by 12 publications

(13 citation statements)

References 7 publications

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“…Oxidation, microbial invasion, and metabolism are the main factors causing deterioration of foods and fruits during production, transportation, and storage [170]. Nowadays, AgNPs, silver nitrate and nanoclay are commonly used in the food packaging industry to resist microbial contamination and to improve barrier properties, thus prolonging shelf life and freshness of packaged foods and drinks [171,172,173,174]. As mentioned previously, colloidal nanosilver and silver nitrate have been used for more than 100 years in the United States [32].…”

Section: Antibacterial Activitymentioning

confidence: 99%

Bactericidal and Cytotoxic Properties of Silver Nanoparticles

Liao

Tjong

2019

IJMS

710

436

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Silver nanoparticles (AgNPs) can be synthesized from a variety of techniques including physical, chemical and biological routes. They have been widely used as nanomaterials for manufacturing cosmetic and healthcare products, antimicrobial textiles, wound dressings, antitumor drug carriers, etc. due to their excellent antimicrobial properties. Accordingly, AgNPs have gained access into our daily life, and the inevitable human exposure to these nanoparticles has raised concerns about their potential hazards to the environment, health, and safety in recent years. From in vitro cell cultivation tests, AgNPs have been reported to be toxic to several human cell lines including human bronchial epithelial cells, human umbilical vein endothelial cells, red blood cells, human peripheral blood mononuclear cells, immortal human keratinocytes, liver cells, etc. AgNPs induce a dose-, size- and time-dependent cytotoxicity, particularly for those with sizes ≤10 nm. Furthermore, AgNPs can cross the brain blood barrier of mice through the circulation system on the basis of in vivo animal tests. AgNPs tend to accumulate in mice organs such as liver, spleen, kidney and brain following intravenous, intraperitoneal, and intratracheal routes of administration. In this respect, AgNPs are considered a double-edged sword that can eliminate microorganisms but induce cytotoxicity in mammalian cells. This article provides a state-of-the-art review on the synthesis of AgNPs, and their applications in antimicrobial textile fabrics, food packaging films, and wound dressings. Particular attention is paid to the bactericidal activity and cytotoxic effect in mammalian cells.

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Section: Antibacterial Activitymentioning

confidence: 99%

Bactericidal and Cytotoxic Properties of Silver Nanoparticles

Liao

Tjong

2019

IJMS

710

436

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“…Mousavi et al . ( 2016 ) showed antioxidant properties of 3 and 5% nano-silver packaging and their beneficial effect on sensory and organoleptic quality of Mazafati date within 53 days of storage and also showed that the use of nanoparticles causes fixed physical features including color of fresh pistachio )Mousavi et al ., 2016). The shelf life of nuts in different groups was determined based on the before-mentioned microbial and chemical analysis.…”

Section: Discussionmentioning

confidence: 98%

“…( 2016 ) investigated effect of nano-silver packaging on shelf life of packaged saffron and found that adding 4000 ppm nano-silver in the packing causes mold count to decrease to 4 log during 6 months (Eslami et al ., 2016 ); these results are consistent with those of ours which showed an average 3 log reduction in mold count in most groups when 3% nano-silver was used. Furthermore, by decreasing mold count in treated samples, aflatoxin was not found in none of them in our study which is consistent with a previous study (Mousavi et al ., 2016 ).…”

Section: Discussionmentioning

confidence: 99%

The effect of nano-silver packaging in increasing the shelf life of nuts: An in vitro model

et al. 2017

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Nano packaging is currently one of the most important topics in food packaging technologies. The aim of the application of this technology in food packaging is increasing shelf life of foods by preventing internal and external corruption and microbial contaminations. Use of silver nanoparticles in food packaging has recently attracted much attention. The aim of this study was to investigate the effect of nano-silver packaging in increasing the shelf life packages of nuts in an In vitro model. In this experimental study, the effects of different nano-silver concentrations (0, 1, 2 and 3 percent) on biological and chemical properties of 432 samples of nuts including walnuts, hazelnuts, almonds and pistachios were evaluated during 0, 3, 6, 9, 12, 15, 18, 21 and 24 months. In most samples, different concentrations of nano-silver (1, 2 and 3 %) significantly reduced total microbial count, mold and coliform counts compared to control group and the 3% nano-silver concentration was more effective than other concentrations (P<0.05). Moreover, using this packaging yielded an antioxidant effect especially when 2% and 3% nano-silver concentrations were used. Nano-silver also prevented growth of mold and so prevented aflatoxin production in all treatment groups. Results of chemical and biological tests showed that the silver nanoparticles had a significant effect on increasing the shelf life of nuts. The highest shelf life belonged to pistachios, almonds, hazelnuts and walnuts with 20, 19, 18 and 18 months, respectively. The shelf life was associated with amount of silver nanoparticles. The highest antimicrobial activity was observed when 3% nano-silver concentration was used in pistachios. The shelf life of control groups in similar storage conditions were calculated for an average of 13 months. In conclusion, the results of this study demonstrate the efficacy of nano-silver packing in increasing shelf life of nuts. Hence, use of nano-silver packaging in food industry, especially in food packaging is recommended.

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“…Some of the studies of Agenabled containers found no or a very modest (2 days or less) increase in the edible lifetime of pork shoulder or chicken fillets (Azlin-Hasim et al 2015;Kernberger-Fischer et al 2017). Some of the studies did find fairly significant (greater than 2 days) extensions of the lifetime of the stored food, while others indicated a significant increase but did not provide all the necessary information to fully understand the implications (Emamifar et al 2010;Yang et al 2010;Jiang et al 2013;Metak and Ajaal 2013;Motlagh et al 2013;Cozmuta et al 2015;Donglu et al 2016;Mousavi et al 2016;Li et al 2017;Tavakoli et al 2017). These findings suggest that there is not a consensus as to whether Ag-enabled food storage containers are an effective method for reducing food spoilage and extending the lifetime of stored food.…”

Section: Novel Food Packagingmentioning

confidence: 99%

Nanosilver‐Enabled Food Storage Container Tradeoffs: Environmental Impacts Versus Food Savings Benefit, Informed by Literature

Westerband

Hicks

2018

Integr Envir Assess & Manag

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Globally, thousands of tons of food are lost each year due to spoilage and degraded quality. This loss is a current critical issue that must be addressed to ensure adequate food supply for the growing world population; the use of technology and regulatory practices are avenues to a solution. One considered approach is the reduction of the microorganism population on the surface of food products to delay spoilage through the use of antimicrobials. One current method is the use of the antimicrobial properties of nanoscale silver (nAg) particles to prolong the freshness of stored food by reducing the bacteria present. Nanoscale silver-enabled food storage containers present a potential solution to the food loss problem; nevertheless, their environmental and human health effects have been questioned by the scientific community. Literature is used to generate data for the life cycle impact assessment of these types of products and their corresponding environmental effects. The benefits of nAg-enabled food storage containers are considered with respect to their potential to extend the shelf life of stored food and prevent food spoilage. The results illustrate that the environmental effects of nano-enabling food storage containers with silver is small (when the initial silver concentration is relatively low, less than 1% by mass) compared with the overall environmental effects of food storage containers and also relatively small compared with the environmental effects of producing the stored food. This finding suggests that the added environmental burden of nano-enabling food storage containers may be small when compared with the environmental burden of food losses. Integr Environ Assess Manag 2018;14:769-776. © 2018 SETAC.

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Investigation Into Shelf Life of Fresh Dates and Pistachios in a Package Modified With Nano-Silver

Cited by 12 publications

References 7 publications

Bactericidal and Cytotoxic Properties of Silver Nanoparticles

Bactericidal and Cytotoxic Properties of Silver Nanoparticles

The effect of nano-silver packaging in increasing the shelf life of nuts: An in vitro model

Nanosilver‐Enabled Food Storage Container Tradeoffs: Environmental Impacts Versus Food Savings Benefit, Informed by Literature

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