Release of thymol from plasticized poly(vinyl chloride)

Szulc, Joanna; Lewandowski, Krzysztof; Skórczewska, Katarzyna; Sadkiewicz, Józef

doi:10.14314/polimery.2018.11.12

Cited by 3 publications

(4 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Material with 20 phr of incorporated cassia oil after 30 days of storage in water is characterised by its higher capacity to scavenge the free radical DPPH* (almost 75%). Szulc et al [ 16 ] demonstrated similar behaviour of PVC material with incorporated thymol, and Braga et al [ 8 ] described the consumption of DPPH* by PVC-based films combined with quercetin and Ag nanoparticles. High antioxidant activity was observed in the PVC-quercetin film after 24 h (60.44%).…”

Section: Resultsmentioning

confidence: 99%

“…Natural antimicrobial agents include extracts from spices such as cinnamon, allspice, clove, thyme, rosemary, and oregano, and other plant extracts such as onion, garlic, radish mustard, and horseradish [ 2 ] A number of methods of introducing essential oils into polymeric materials are being investigated. The essential oil can be incorporated into a polymer matrix or applied to a polymer film surface [ 16 ]. The following methods are known in the literature for obtaining modified material: the cast solution method [ 17 ], the encapsulation method from a polymer solution [ 18 , 19 ], or film preparation by electrospinning [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Modification of Poly(vinyl chloride) with Bio-Based Cassia Oil to Improve Thermo-Mechanical and Antimicrobial Properties

et al. 2023

Self Cite

View full text Add to dashboard Cite

The purpose of this study was to modify plasticised PVC to obtain a material with antimicrobial properties and selected mechanical properties. Natural cassia oil (CO) was used to modify plasticised PVC materials. The modified material was produced by extrusion. The introduced modifier had a maximum concentration of 20 phr. Rheological and mechanical properties were evaluated, and the glass transition temperature was determined. The antioxidant and antimicrobial activity of the agar diffusion method was investigated by analysing the growth inhibition zones against Enterococcus faecalis and Listeria monocytogenes. A favourable effect of the cassia oil content on the increase in antioxidant activity of the developed polymeric materials was found with an increase in the modifier content and the duration of action (30 days). The largest growth restriction zones were observed for L. monocytogenes, i.e., they showed the highest sensitivity to the modified material. The simultaneous decrease in modulus of elasticity, increase in elongation at break, and decrease in Tg indicate that the modifier has a plasticising effect on PVC. The developed material may find application as an active and/or functional material, especially as an emitter of antimicrobial agents, in the packaging used to store minimally processed food.

show abstract

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Modification of Poly(vinyl chloride) with Bio-Based Cassia Oil to Improve Thermo-Mechanical and Antimicrobial Properties

et al. 2023

Self Cite

View full text Add to dashboard Cite

show abstract

“…In practice, mixtures of various plasticizing substances selected in such a way that the properties of the obtained material meet the requirements of future users are often used. Despite the considerable amount of knowledge about PVC plasticization, research is still carried out to obtain and introduce into production new plasticizers that are better and better adapted to modern requirements [26][27][28][29][30][31][32][33][34][35].…”

Section: Innowacyjne Plastyfikatory Oligomeryczne Poli(chlorku Winylu) Do Aplikacji Specjalistycznychmentioning

confidence: 99%

Innovative oligomeric poly(vinyl chloride) plasticizers for specialized applications

Lewandowski¹,

Piszczek

Pieńkowska³

et al. 2020

Polimery

Self Cite

View full text Add to dashboard Cite

The purpose of the work was to determine the properties of poly(vinyl chloride) (PVC) plasticized with a new linear and oligomeric terephthalic acid esters and aliphatic acids in terms of their application as an innovative non-phthalate plasticizers. On the basis of analysis of PVC grain swelling shows that these compounds have plasticizing properties. Plastographometric tests were performed, the glass transition temperature and thermal stability time were analyzed. The mass flow rate (MFR) and mechanical properties of plasticized PVC was determined. Based on the analysis of the results obtained, it can be concluded that both assessed oligoesters can be successfully used for the production of plasticized PVC with utility indicators similar to those of plasticized PVC produced so far.

show abstract

“…Sprouts subjected to treatments that activate secondary metabolites pathways can also be a source of bioactive compounds dedicated to enriching other food products, used as pharmaceuticals, or used in other industries, e.g., in polymer processing as a source of compounds improving the thermal stability of plastics or as a compound in active or intelligent packaging [13,14,[39][40][41][42]. Nowadays, scientists are interested in improving polymer properties with essential oils, which, when incorporated into a polymer matrix or applied to a polymer film surface, can give new properties like antimicrobial or antioxidant features to the polymer [43,44]. Thermal stability can be enhanced by adding, e.g., lignin, curcuminoids, and eugenol [45][46][47].…”

Section: Introductionmentioning

confidence: 99%

Elicitation as a Process of Enhancing Bioactive Compounds Concentration in Sprouts

Szulc,

Czaczyk,

Dobrowolska

et al. 2024

Processes

Self Cite

View full text Add to dashboard Cite

During growth, plants produce bioactive compounds—secondary metabolites. Their concentration can be stimulated by the presence of a stressful factor—an elicitor. Since chlorine dioxide is commonly used in water plants to disinfect drinking water, its application as a plant elicitor seems to be very attractive. The aim of this work was to investigate the influence of a new elicitor, ClO2, on the quality of seeds and bioactive compounds of sprouts. Elicitation of radish and broccoli seeds using ClO2 solutions did not significantly reduce their germination percentage (GP remained over 90%). Radish sprouts sprouted from seeds elicited in chlorine dioxide solutions with concentrations up to 800 ppm did not differ statistically significantly in terms of polyphenol content. Sprouts which were grown in the presence of ClO2 contained significantly fewer polyphenolic compounds. Elicitation of broccoli seeds in 800–1000 ppm ClO2 solutions causes an increase in total phenolic content and concentration of ascorbic acid in sprouts. Elicitation in chlorine dioxide solutions not only increased concentrations of selected bioactive compounds but also improved the microbiological quality of sprouts.

show abstract

Release of thymol from plasticized poly(vinyl chloride)

Cited by 3 publications

References 18 publications

Modification of Poly(vinyl chloride) with Bio-Based Cassia Oil to Improve Thermo-Mechanical and Antimicrobial Properties

Modification of Poly(vinyl chloride) with Bio-Based Cassia Oil to Improve Thermo-Mechanical and Antimicrobial Properties

Innovative oligomeric poly(vinyl chloride) plasticizers for specialized applications

Elicitation as a Process of Enhancing Bioactive Compounds Concentration in Sprouts

Contact Info

Product

Resources

About