Study of Coffee Grounds Oil Action in PVC Matrix Exposed to Gamma Radiation: Comparison of Systems in Film and Specimen Forms

Silva, Lindomar Avelino da; Almeida, Tainá Medeiros Bastos de; Teixeira, Rebeca Valgueiro; Araújo, Elmo S.; Aquino, Kátia Aparecida da Silva

doi:10.1590/1980-5373-mr-2016-0985

Cited by 5 publications

(4 citation statements)

References 15 publications

(23 reference statements)

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“…Certain PVC-based composites have been already produced with the use of SCG oil; these composites showed resistance to gamma radiation. The authors suggested that this property of PVC produced with SCG oil can be very useful for the packaging of materials that undergo gamma radiation sterilization [46]. The authors [19] observed that coffee oil addition below 0.2% to bioactive films of carboxymethyl cellulose did not yield significant changes in the mechanical properties of experimentally produced films.…”

Section: Resultsmentioning

confidence: 99%

“…The addition of coffee waste, such as SCG oil, is fortifying the final product and at the same time is making SCG, a waste product, a valuable raw material. Literature supports the recognition of SCG oil as valuable in the production of biopolymers [ 46 ].…”

Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Edible/Biodegradable Packaging with the Addition of Spent Coffee Grounds Oil

Dordevic,

Abdullah

et al. 2023

Foods

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Background: Following petroleum, coffee ranks as the second most extensively exchanged commodity worldwide. The definition of spent coffee ground (SCG) can be outlined as the waste generated after consuming coffee. The aims of the study are to produce edible/biodegradable packaging with the addition of spent coffee grounds (SCG) oil and to investigate how this fortification can affect chemical, textural, and solubility properties of experimentally produced films. Methods: The produced films were based on κ-carrageenan and pouring–drying techniques in petri dishes. Two types of emulsifiers were used: Tween 20 and Tween 80. The films were analyzed by antioxidant and textural analysis, and their solubility was also tested. Results: Edible/biodegradable packaging samples produced with the addition of SCG oil showed higher (p < 0.05) antioxidant capacity in comparison with control samples produced without the addition of SCG oil. The results of the research showed that the fortification of edible/biodegradable packaging with the addition of SCG oil changed significantly (p < 0.05) both chemical and physical properties of the films. Conclusions: Based on the findings obtained, it was indicated that films manufactured utilizing SCG oil possess considerable potential to serve as an effective and promising material for active food packaging purposes.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Edible/Biodegradable Packaging with the Addition of Spent Coffee Grounds Oil

Dordevic,

Abdullah

et al. 2023

Foods

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“…The biodegradable packaging can be fortified with the inclusion of coffee waste, such as SCG, while at the same time SCG, a waste product, becomes a valuable raw material. The use of SCG in the creation of biopolymers is acknowledged in the literature [22].…”

Section: Resultsmentioning

confidence: 99%

Development of edible/biodegradable packaging based on κ-carrageenan with spent coffee grounds as active additives

Dordevic,

Danilović

et al. 2023

Adv Techol

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Edible packaging with active and intelligent properties has gained recent attention, although the concept of edible packaging itself is not new. These packages are created using various substances such as polysaccharides, proteins, and lipids, either individually or in combination. To find the optimal combination for specific applications, the physical and chemical properties of these packages are measured. Active or intelligent properties are achieved by incorporating substances, often extracts, with antioxidant, antibacterial, or other beneficial properties into the packaging. The aim of the research was to develop an edible packaging based on κ-carrageenan, with spent coffee grounds as potential additives to impart active properties of edible/biodegradable packaging. To assess the suitability of the packaging for future applications, the thesis evaluated its textural properties, including thickness, water content, flexibility, and strength. Additionally, the antioxidant activity and free radical scavenging capacity of the packaging were measured using various methods. Elasticity of the packaging was increased (p < 0.05) with the addition of spent coffee grounds, the same as polyphenolic compounds (p < 0.05). While recent attempts have been made to utilize spent coffee grounds for various purposes, their incorporation into edible/biodegradable packaging remains certainly not enough explored. The research emphasized the possibility of the incorporation of spent coffee grounds into edible/biodegradable matrices and the findings will serve as a good foundation for further studies.

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New poly(lactic acid) composites produced from coffee beverage wastes

Gama

Ferreira

Evtuguin

2021

J of Applied Polymer Sci

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In this study, aiming to reduce the environmental impact of plastics, new composite materials containing recycled fibers from used paper coffee cups and oil extracted from spent coffee grounds (SCG) were produced. Accordingly, the cellulose fibers were chemically modified using lactic acid to be used as poly(lactic acid) filler reinforcement. The obtained results revealed that its addition improved the mechanical properties of the ensuing composites. The addition of 30% wt/wt of unmodified and modified fibers increased the Young modulus by 53% and 72%, respectively. In addition, enhanced biodegradability was obtained due to higher water absorption (up to 4% wt/wt). In parallel, coffee oil was used as a plasticizer and the affinity between the plasticizer and polymer matrix was confirmed by the lack of phase separation, by the improved flexibility of derived materials (the addition of 40% wt/wt of plasticizer increased the elongation at break by 86%) and by the better processability of the ensuing materials (the addition of 30% wt/wt of plasticizer increased the MFI by 205%). Overall, the results suggest that the use of modified cellulose fibers and the addition of SCG oil‐based plasticizer can be promising routes to produce eco‐friendly plastics.

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Study of Coffee Grounds Oil Action in PVC Matrix Exposed to Gamma Radiation: Comparison of Systems in Film and Specimen Forms

Cited by 5 publications

References 15 publications

Edible/Biodegradable Packaging with the Addition of Spent Coffee Grounds Oil

Edible/Biodegradable Packaging with the Addition of Spent Coffee Grounds Oil

Development of edible/biodegradable packaging based on κ-carrageenan with spent coffee grounds as active additives

New poly(lactic acid) composites produced from coffee beverage wastes

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