Optimization of Dye Extraction Conditions from (Camellia sinensis) Green Tea Leaves Using Response Surface Methodology

Noor, Sadia; Ali, S. H.; Hussain, Tanveer

doi:10.14233/ajchem.2015.19109

Cited by 6 publications

(4 citation statements)

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“…2.4.2 Experimental design. RSM was used to test individual and interactive effects of the studied dyeing conditions on the response (color strength) (Noor et al, 2015). Particularly the Central Composite Design (CCD) of the experiment was used to develop the optimization design with three independent variables at five levels (Table 1).…”

Section: Dyeing Experimentsmentioning

confidence: 99%

Dyeing of cotton fabric with Euclea divinorum extract using response surface optimization method

Manyim

Kiprop

Mwasiagi

et al. 2021

RJTA

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Purpose The majority of the synthetic dyes have been found to be non-biodegradable, toxic and carcinogenic. As a result, there has been a growing trend toward the use of natural dyes as alternates to synthetic dyes. This shift calls for more research to come up with more sources of natural dyes to satisfy their increasing demand. Euclea divinorum plant has been used traditionally as a source of dye, however, its textile dyeing properties have not been studied. This study aims to determine the textile dyeing properties of E. divinorum extract. Design/methodology/approach Optimization of dyeing conditions of Euclea divinorum natural dye extract on the cotton fabric was done using response surface methodology (RSM). The combined effects of examined dyeing conditions on the relative color strength (K/S) were studied using a central composite experimental design. Analysis of variance (ANOVA) was used to determine the significance of the statistical model generated for the study. Mordanting effects were measured using standard ISO wash, rub and lightfastness tests. Findings The optimum dyeing conditions were found to be 68 min, pH 3.3 and 82°C with color strength 0.609. Temperature and pH showed some interaction effects during the dyeing experiments. The predicted optimum K/S value was validated experimentally using the optimum conditions and was found to be in agreement with the experimental values. All the metallic mordants used enhanced the color strength and provided a variety of brown shades, therefore, a suitable alternative for the toxic synthetic dyes. Originality/value Optimization of dyeing conditions of Euclea divinorum dye on cotton using RSM and mordanting at optimal conditions has not been done elsewhere.

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Section: Dyeing Experimentsmentioning

confidence: 99%

Dyeing of cotton fabric with Euclea divinorum extract using response surface optimization method

Manyim

Kiprop

Mwasiagi

et al. 2021

RJTA

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show abstract

“…12 The procedures employing microwaves (MAE), 28−30 ultrasound (UAE) 31 and other green conditions 32 els. 14,29,31,33−37 So far, Box−Behnken design (BBD), 35,36 central composite design (CCD), 14,31,37 and orthogonal assay design 29 have been used. Additionally, the prepared extracts are tested to evaluate antioxidant activity.…”

Section: Introductionmentioning

confidence: 99%

“…The procedures employing microwaves (MAE), – ultrasound (UAE) and other green conditions are popular in the extraction process of these plant leaves beyond conventional methods. The literature has examples of extracting polyphenols from green tea leaves with the assumption of using statistical models. ,,,– So far, Box–Behnken design (BBD), , central composite design (CCD), ,, and orthogonal assay design have been used. Additionally, the prepared extracts are tested to evaluate antioxidant activity.…”

Section: Introductionmentioning

confidence: 99%

“…The literature has examples of extracting polyphenols from green tea leaves with the assumption of using statistical models. 14 , 29 , 31 , 33 – 37 So far, Box–Behnken design (BBD), 35 , 36 central composite design (CCD), 14 , 31 , 37 and orthogonal assay design 29 have been used. Additionally, the prepared extracts are tested to evaluate antioxidant activity.…”

Section: Introductionmentioning

confidence: 99%

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Green Synthesis of Silver Nanoparticles: Optimizing Green Tea Leaf Extraction for Enhanced Physicochemical Properties

Wirwis

Sadowski

2023

ACS Omega

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In this paper, we present the optimization of green tea leaf (Camellia sinensis L.) extraction, carried out using water and hydroalcoholic solvents, for the subsequent synthesis of silver nanoparticles (AgNPs). The value ranges for independent variables, including pH, time, and temperature, were selected based on single-factor experiments and used for extraction in the order presented by the Box–Behnken design. Three-dimensional response surface graphs were used to visually present the optimization results and determine the optimal extraction conditions: pH = 7, 30 min, 80 °C for water and pH = 5.5, 50 min, and 80 °C for water–ethanol. Our findings indicate that the water–ethanol mixture extracted more polyphenols. We compared the physicochemical properties of AgNPs obtained using both types of extractants via DLS and TEM analysis. We proposed a predicted mechanism for the reduction and stabilization of AgNPs based on the Fourier transform infrared data. The hydroethanolic extract leads to significant nanoparticle aggregation, which can be explained by the nucleation theory and agglomeration of nanoparticles in the presence of excess macromolecular organic substances (flocculation).

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Imidazolium Ionic Liquids in Microemulsion Electrokinetic Chromatography for Separation of Polyphenol Antioxidants

et al. 2020

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Optimization of Dye Extraction Conditions from (Camellia sinensis) Green Tea Leaves Using Response Surface Methodology

Cited by 6 publications

References 0 publications

Dyeing of cotton fabric with Euclea divinorum extract using response surface optimization method

Dyeing of cotton fabric with Euclea divinorum extract using response surface optimization method

Green Synthesis of Silver Nanoparticles: Optimizing Green Tea Leaf Extraction for Enhanced Physicochemical Properties

Imidazolium Ionic Liquids in Microemulsion Electrokinetic Chromatography for Separation of Polyphenol Antioxidants

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