AgNP anchored carbon dots and chitin nanowhisker embedded soy protein isolate films with freshness preservation for active packaging

Koshy, Rekha Rose; Reghunadhan, Arunima; Mary, Siji K.; Sandeep, S.; Jose, Seno; Thomas, Sabu; Pothen, Laly A.

doi:10.1016/j.fpsl.2022.100876

Cited by 21 publications

(11 citation statements)

References 33 publications

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“…Thus, the films developed in this work prolonged the shelf-life of highly perishable strawberries by delaying the quality degradation and proved their potential application as fruit packaging material. These properties of CPCD-based polymeric films are also comparable to previously published reports. ,,− Min et al reported gelatin-based functional films using CDs as functional fillers . The UV light-blocking abilities of the films based on gelatin were improved with the inclusion of CDs, without compromising the transparency.…”

Section: Resultssupporting

confidence: 87%

“…Kalanidhi and Nagaraaj demonstrated CD-incorporated chitosan/polyvinylpyrrolidone films with excellent biodegradability that promotes plant growth, suggesting the use of such films for food packaging applications . Koshy et al designed silver nanoparticle-anchored CDs and chitin nanowhisker-embedded soy protein isolate films for active packaging . The synergistic effect of nanoparticles and chitin nanowhiskers provided excellent antibacterial and antioxidant characteristics, allowing them to enhance the food shelf-life.…”

Section: Resultsmentioning

confidence: 99%

“…110 Koshy et al designed silver nanoparticle-anchored CDs and chitin nanowhiskerembedded soy protein isolate films for active packaging. 112 The synergistic effect of nanoparticles and chitin nanowhiskers provided excellent antibacterial and antioxidant characteristics, allowing them to enhance the food shelf-life. An active biopolymer film describes the practice of incorporating active elements including antibacterial agents and antioxidants.…”

Section: Antioxidant Activity Of Cpcds Dpph Free Radical Inhibitionmentioning

confidence: 99%

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Carbon Dot Biopolymer-Based Flexible Functional Films for Antioxidant and Food Monitoring Applications

Das

Ganguly

Ahmed

et al. 2022

ACS Appl. Polym. Mater.

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Heteroatom-doped carbon dot (CD)-reinforced flexible, antioxidant, and UV-resistant polymeric thin films have been fabricated by a facile physical compounding strategy associated with the ‘cast and peel’ technique. The prepared CDs were found to be stable in aqueous media because of their zeta potential value (−5.85 mV). There was no significant change in the zeta potential values during 7 days of storage, indicating the long-term stability of CPCDs. CD-reinforced thermoplastic starch (TPS)/κ-carrageenan hybrid films have been developed as antioxidants to improve the shelf-life of agro-products. Besides this, they also qualified for mechanical strength (>40 MPa), transparency (∼77%), nondeteriorative dimensional integrity at a high relative humidity (∼97%), and UV-resistant properties. For assessing the food preservation behavior, the leaching of CDs also has been studied by time-dependent sustained release in different food simulant media, where it showed a gradual alteration of entrapment efficacy in high-polarity gradient environments. The mechanism of CD release has been obtained from the non-Fickian fittings of the initial preplateaued kinetic data. Surprisingly, when these nanodots were arrested inside the polymer matrix, the film also showed excellent water vapor impermeability, low moisture retention, sufficient toughness, and superficial compliance to external flexing and stretching. Also, CD-based TPS/κ-carrageenan films exhibited strong antioxidant activity, as determined by 1,1-diphenyl-2-picrylhydrazyl (>85%) and 2,2′-azinobis-(3-ethylbenzothiazoline-6-sulfonic acid assays (>90%). Thus, these hybrid films could be promoted as ideal alternatives for food packaging with their thin, flexible, tough, antioxidant, and moisture-impermeable properties.

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Section: Resultssupporting

confidence: 87%

Section: Resultsmentioning

confidence: 99%

Section: Antioxidant Activity Of Cpcds Dpph Free Radical Inhibitionmentioning

confidence: 99%

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Carbon Dot Biopolymer-Based Flexible Functional Films for Antioxidant and Food Monitoring Applications

Das

Ganguly

Ahmed

et al. 2022

ACS Appl. Polym. Mater.

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“…The pH sensitivity of the packaging film is essential to monitor the freshness of packed food materials, informing the consumers about the state of the food by just monitoring the colour change of the film 10 . The application of SPI based films for freshness preservation packaging has been reported by our team 11,12 . Here, we have exploited Clitoria ternatea flower (CTE) as the source of anthocyanin.…”

Section: Introductionmentioning

confidence: 99%

“…10 The application of SPI based films for freshness preservation packaging has been reported by our team. 11,12 Here, we have exploited Clitoria ternatea flower (CTE) as the source of anthocyanin.…”

Section: Introductionmentioning

confidence: 99%

Smart pH‐sensitive films based on biomaterials: Preparation from soy protein with hybrid fillers of CuO nanorods, cellulose nanofibrils, and Clitoria ternatea anthocyanin

Koshy

Mary

Thomas³

et al. 2022

JSFA Reports

Self Cite

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Background:The environmental concern about plastic consumption always rises the need for alternate materials. Plastics being widely employed in the food packaging and hence highly demands such alternatives. The toxicity and pollution produced by the conventional petroleum-based plastics can be reduced by the usage of bioplastics. The area of food packaging using various biopolymer composites has grown much and is developing new materials by incorporating various nanofillers, especially based on green synthesis approach. This study focuses on the usage of soy protein isolate as a matrix for such films and uses copper nanomaterials and cellulose as reinforcing agent.Results: An active and intelligent bio nanocomposite thin film based on soy protein isolate (SPI) was prepared. Copper oxide nanorods(CuONRs) were synthesised from ascorbic acid and honey, cellulose nanofibrils (CNF) were extracted from the Acasiacaesia using steam explosion technique and anthocyanin was extracted from Clitoria ternatea flower (CTE). The effect of the addition of CuONR (5%, 10%), CNF (10%), and CTE (7%) on the physiomechanical, barrier, antibacterial, and antioxidant properties of the films was investigated. SEM showed uniform distribution of CuONR/CNF/CTE in the SPI matrix. Conclusion:The addition of CuO and CNF was found to effectively increase the mechanical property, thermal stability, and decrease the moisture content percentage of the films. In contrast, the addition of CTE made the film pH-sensitive. SPI-CuONR/CNF/ CTE films showed good antioxidants and antibacterial properties. Fabricated film could act both as a pH sensor for detecting the evolution of acidic and basic gases and as active packaging material to extend the shelf life of food materials.

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Recent Progress in Robust Regenerated Soy Protein Film

Gu,

Tan,

Pang

et al. 2023

Macro Materials & Eng

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This review aims to provide a comprehensive overview of the research progress on soy protein (SP) film. SP film has gained significant attention due to its natural, renewable, and biodegradable characteristics. The review begins by introducing the film formation mechanisms and preparation methods of SP film, including solution casting, dry‐film formation, and other techniques, and discusses the associated preparation conditions and processes. Subsequently, the review explores the structural features, plasticization modifications, mechanical properties, antimicrobial modifications, UV shielding properties, and conductivity of SP film. Lastly, the review summarizes the current challenges and development directions in SP film research. This includes improving the mechanical performance and stability of the film, exploring novel functionalization approaches, and enhancing the sustainability of the film. Through this review of SP film, the study aims to enhance the understanding of their potential in materials science and various applications while providing guidance and insights for future research and applications.

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AgNP anchored carbon dots and chitin nanowhisker embedded soy protein isolate films with freshness preservation for active packaging

Cited by 21 publications

References 33 publications

Carbon Dot Biopolymer-Based Flexible Functional Films for Antioxidant and Food Monitoring Applications

Carbon Dot Biopolymer-Based Flexible Functional Films for Antioxidant and Food Monitoring Applications

Smart pH‐sensitive films based on biomaterials: Preparation from soy protein with hybrid fillers of CuO nanorods, cellulose nanofibrils, and Clitoria ternatea anthocyanin

Recent Progress in Robust Regenerated Soy Protein Film

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