Central composite design based statistical modeling for optimization of barrier and thermal properties of polystyrene based nanocomposite sheet for packaging application

Fakhri, Leila Abolghasemi; Ghanbarzadeh, Babak; Dehghannya, Jalal; Dadashi, Saeed

doi:10.1016/j.fpsl.2021.100725

Cited by 10 publications

(8 citation statements)

References 59 publications

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“…The C.V. (coefficient of variation) values < 10% provided better reproducibility and showed high accuracy and good reliability of the true values. The three models have adequate precisions that are greater than 4, which indicates adequate signals [33]. Therefore, the models created are suitable for analyzing the responses.…”

Section: Optimization Of the Physicochemical Characteristics 421 Regr...mentioning

confidence: 96%

New Healthy Low-Sugar and Carotenoid-Enriched/High-Antioxidant Beverage: Study of Optimization and Physicochemical Properties

Fakhri,

Ghanbarzadeh,

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2023

Foods

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Lutein is a prominent biologically active carotenoid pigment with a polyene skeleton that has great benefits for human health. The study examined the synergistic effects of potentially functional components, including lutein carotenoid (LC), Mentha × Piperita extract (MPE), and Citrus × aurantifolia essential oil (CAEO), all three as bioactive components and antioxidants (AOs), on the physicochemical characteristics of a new low-sugar and carotenoid-enriched high-antioxidant beverage. Sucralose was utilized as a non-nutritive sweetener. Polynomial equations obtained by combined design methodology (CDM) were fitted to the experimental data of total phenolic and flavonoid contents (TPC and TFC, respectively) and antioxidant potential of the beverages using multiple regression analysis with R2 (determination coefficient) values of 0.87, 0.89, and 0.97, respectively. Estimated response values for the TPC, TFC, and antioxidant potential (determined as 2, 2-diphenyl-1-picrylhydrazyl radical (DPPH•) scavenging activity) of the optimum beverage formulation were 41.90 mg gallic acid equivalent (GAE) per L−1, 27.51 mg quercetin equivalent (QE) per L−1, and 34.06%, respectively, with a desirability value of 0.74. The potentially functional components had a synergistic effect on the antioxidant potential. This healthy beverage can have the potential to enhance health benefits and may have therapeutic potential for diabetic patients.

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Section: Optimization Of the Physicochemical Characteristics 421 Regr...mentioning

confidence: 96%

New Healthy Low-Sugar and Carotenoid-Enriched/High-Antioxidant Beverage: Study of Optimization and Physicochemical Properties

Fakhri,

Ghanbarzadeh,

Falcone

2023

Foods

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“…In addition, the interaction between chitosan and ZnO tends to reduce the free space between the polymer chains, thereby reducing the diffusivity, transmission rate and penetration of water vapor through the matrix due to the formation of winding paths through which water molecules will pass. The better the distribution of chitosan and ZnO in the polymer matrix, the higher the ability to inhibit the film against water vapor and gas [38]. Higher permeability was obtained after the addition of glycerol in glutinous flour.…”

Section: Effect Of Chitosan Zno and Glycerol Concentration On Water A...mentioning

confidence: 97%

Optimization and characterization of biodegradable film based on glutinous flour/glycerol/chitosan/ZnO using Response Surface Methodology (RSM) - Central Composite Design (CCD)

Safira

Purbasari

2022

J. Kim. Sains Apl.

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Starch-based films are considered more competitive than petroleum because they are renewable, environmentally friendly, and easily degraded. The film in this study was fabricated from white glutinous flour, glycerol, chitosan, and ZnO through a starch gelatinization process. Chitosan content ranges from 2-4% (w/v), ZnO 4-8% of the dry weight of solid, and glycerol 15-45% of the dry weight of solids with a mass of white glutinous flour as much as 3 g was determined. Optimization and determination of running variables based on Central Composite Design. Response variables such as tensile strength, elongation, and water absorption were observed as important parameters in applying film as packaging materials. The Design Expert program recommended 2 g of chitosan: 8 % ZnO: 36.02% glycerol as the best composition in film fabrication, which aims to obtain maximum tensile strength and elongation, as well as minimum water absorption with the maximum desirability value (0.660). The predicted response values under optimal conditions by RSM were 3.68 MPa for tensile strength, 86.79% for elongation, and 268.09% for water absorption. The actual response has a tensile strength of 3.31 MPa, elongation of 83.5%, and water absorption of 320%. On average, a white glutinous flour/glycerol/chitosan/ZnO-based film required ± 45 days to degrade in the soil completely.

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“…The WVP of the films was determined using an ASTM standard method [22] with some modifications [9,23]. Each film (conditioned at RH = 55 ± 3%, 25 • C for 24 h) was placed on the glass vial (mouth diameter = 2 cm, depth = 4.5 cm) containing anhydrous calcium sulfate (3 g, RH = 0%).…”

Section: Water Vapor Permeability (Wvp)mentioning

confidence: 99%

“…Due to their low cost, good UV absorbance properties, abundance, high chemical stability, high resistance to processing conditions such as high temperature and pressure, and effectiveness at low concentrations, ZnONPs have attracted the attention of many researchers. The presence of ZnONPs in the polymer matrix can modify their optical, antimicrobial, mechanical, thermal, barrier, and electrical properties [8][9][10]. Polyphenols, such as gallic acid (GA, 3,4,5-trihydroxybenzoic acid, C 7 H 6 O 5 ), are a group of bioactive compounds that can be used in active food packaging materials due to their antioxidant and antimicrobial properties [11].…”

Section: Introductionmentioning

confidence: 99%

“…It also allows researchers to evaluate the effects of multiple factors and their interactions on the dependent variables. Therefore, it is a beneficial procedure to reduce time, cost, and the number of trial runs [3,9]. There are several studies in which the central composite design (CCD) using RSM has been used effectively in optimizing film compositions to achieve the desired composite film properties [2,17,18].…”

Section: Introductionmentioning

confidence: 99%

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Physico-Mechanical Optimization and Antimicrobial Properties of the Bionanocomposite Films Containing Gallic Acid and Zinc Oxide Nanoparticles

et al. 2023

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The mechanical and physical properties of the bionanocomposite films based on κ-carrageenan (KC)–gelatin (Ge) containing zinc oxide nanoparticles (ZnONPs) and gallic acid (GA) were optimized using the response surface method, and the optimum amounts of 11.19 wt% GA and 1.20 wt% ZnONPs were obtained. The results of XRD, SEM, and FT-IR tests showed the uniform distribution of the ZnONPs and GA in the film microstructure, and suitable interactions between biopolymers and these additives, which led to increasing the structural cohesion of the biopolymer matrix and improving the physical and mechanical properties of the KC–Ge-based bionanocomposite. In the films containing gallic acid and ZnONPs, an antimicrobial effect was not observed against E. coli; however, the GA-loaded and optimum films show an antimicrobial effect against S. aureus. The optimum film showed a higher inhibition effect against S. aureus compared to the ampicillin- and gentamicin-loaded discs.

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Central composite design based statistical modeling for optimization of barrier and thermal properties of polystyrene based nanocomposite sheet for packaging application

Cited by 10 publications

References 59 publications

New Healthy Low-Sugar and Carotenoid-Enriched/High-Antioxidant Beverage: Study of Optimization and Physicochemical Properties

New Healthy Low-Sugar and Carotenoid-Enriched/High-Antioxidant Beverage: Study of Optimization and Physicochemical Properties

Optimization and characterization of biodegradable film based on glutinous flour/glycerol/chitosan/ZnO using Response Surface Methodology (RSM) - Central Composite Design (CCD)

Physico-Mechanical Optimization and Antimicrobial Properties of the Bionanocomposite Films Containing Gallic Acid and Zinc Oxide Nanoparticles

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