Effects of biopolishing on the quality of cotton fabrics using acid and neutral cellulases

Uddin, Mohammad Gias

doi:10.1186/s40689-015-0009-7

Cited by 15 publications

(6 citation statements)

References 11 publications

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“…e pH of immobilized cellulase enzyme with maximum activity for the biosinged treatment of cotton fabric was maintained at pH 4.5-5.5 [18,20]. Cellulase is a class of enzymes that act at 4.5-6 and in the temperature range of 40-80 °C [17]. e levels of each factor are low, medium, and high that chosen based on the software recommendation and according to the Box-Behnken design statistical tools [21].…”

Section: Experimental Design Design Of Experiments (Doe) Ismentioning

confidence: 99%

“…However, biofinishing textile process conditions have not yet explored and the optimization of process parameters is underexplored in which one variable is varied while the others are kept constant; for example, the temperature is varied but pH is kept constant. ere is a timeconsuming method with several experiments to optimize parameters [17].…”

Section: Introductionmentioning

confidence: 99%

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Process Optimization for Biosingeing of 100% Cotton Terry Towel Fabric Using Box–Behnken Design

Azanaw

Ketema

2022

Advances in Materials Science and Engineering

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In the present day, numerous researchers have paid more attention to the dyeing and finishing quality of environmentally friendly textile products in the world because the lack of outstanding products is an alarming problem. Therefore, the purpose of the present study is to treat the fabric with cellulase enzymes to improve the dyeing and finishing quality. The effects of varying chemical concentrations, temperatures, and processing times were examined in the model and different process parameters were optimized in the preparation biosingeing process. The results of the Box–Behnken design were obtained as R2 = 0.7243, 0.9027, and 0.9966 for optimum absorbency, weight loss, and tensile strength, respectively. The treated fabric was analyzed using FTIR to know the unknown functional group and the chemical bonds on the fabric molecule. Testing of physical properties of the treated fabric was done and the result was comparable with other untreated fabrics. The treated fabric performance was studied at 40, 50, and 60 minutes and at temperatures of 30, 55, and 80°C. The experimental investigation has been carried out to determine the effect of biosingeing on different physical parameters, such as the tensile strength of treated cotton fabric (437 N), which was almost similar to that of the untreated fabric (443 N), with almost no significant differences. K/S value for the biosingeing fabric of treated fabric was 17.58, but the that of the untreated fabric was 15.6, which was significantly different. Thus, the enzymatically treated fabric is of good quality because the protruding fiber was removed in biosingeing process. This ecofriendly singeing preparatory process is an alternative process for terry towel fabrics.

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Section: Experimental Design Design Of Experiments (Doe) Ismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Process Optimization for Biosingeing of 100% Cotton Terry Towel Fabric Using Box–Behnken Design

Azanaw

Ketema

2022

Advances in Materials Science and Engineering

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“…Though the effects of cellulase hydrolysis remain a surface phenomenon, changes in many physical aspects as well as me-Journal of Textile Science and Technology chanical properties of fabrics take place during denim bio-polishing. The major drawback associated with the use of cellulase is the loss of mass and the reduction in the fabric tensile strength [19] [20] [21]. Statistically, significant differences were observed between untreated and treated fabrics with regard to breaking strength.…”

Section: Introductionmentioning

confidence: 99%

Effects Optimization of Bio-Polishing Industrial Process Parameters

Marzoug¹,

Cheriaa²

2023

JTST

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The purpose of this study is to select an appropriate commercial neutral cellulase enzyme for denim garments bio-polishing to achieve specific industrial goals. A full factorial experimental design was used to evaluate the effect of factors considered in the optimization of the bio-polishing process (fabric ID: x1, treatment time: x2, treatment temperature: x3, enzyme concentration: x4, storage time: x5, inactivation step: x6 and enzyme type: x7). Experiments were conducted using laboratory washing machine. Subjective evaluation was performed at a pilot and at an industrial scale. Tear, tensile strength and subjective evaluation concerning hand feel, fabric color, indigo dye pocket back staining and fuzziness extent were evaluated. Results showed that x6 and x7 had significant effects on the fabric tear and tensile strength loss. In the optimization, the great dependence between observed and predicted tear strength and tensile strength loss, the correlation coefficient of the models (R 2 > 0.85) and the important value of F-ratio proved the validity of the models. Results showed that denim leg panels treated with the enzyme Lava-Cell NSZ presented a minimum loss of tear and tensile strength. A low-temperature and time enzymatic bio-polishing process was developed at industrial scale.

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“…Cellulase enzymes, specifically thermotolerants, play a crucial role in biopolishing by eliminating loosely bound and protruding cellulose fibers from the fabric surface. This process leads to smoother and softer fabrics with enhanced drapes, reduced pilling, and improved color brilliance [ 14 ]. Cellulase biopolishing is an alternative method that offers several advantages over chemical or mechanical treatments, since the former uses harmful substances and produces waste, while the latter inflicts damage and wear on the fabric, as it only affects the surface fibers.…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Optimization, and Characterization of Cellulase Enzyme Obtained from Thermotolerant Bacillus subtilis F3: An Insight into Cotton Fabric Polishing Activity

Fouda,

Alshallash,

Atta

et al. 2023

J. Microbiol. Biotechnol.

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The efficacy of 40 bacterial isolates obtained from hot spring water samples to produce cellulase enzymes was investigated. As a result, the strain Bacillus subtilis F3, which was identified using traditional and molecular methods, was selected as the most potent for cellulase production. Optimization was carried out using one-factor-at-a-time (OFAT) and BOX-Behnken Design to detect the best conditions for the highest cellulase activity. This was accomplished after an incubation period of 24 h at 45°C and pH 8, with an inoculum size of 1% (v/v), 5 g/l of peptone as nitrogen source, and 7.5 g/l of CMC. Moreover, the best concentration of ammonium sulfate for cellulase enzyme precipitation was 60% followed by purification using a dialysis bag and Sephadex G-100 column chromatography to collect the purified enzyme. The purified cellulase enzyme was characterized by 5.39-fold enrichment, with a specific activity of 54.20 U/mg and a molecular weight of 439 kDa. There were 15 amino acids involved in the purified cellulase, with high concentrations of 160 and 100 mg/l for glycine and proline respectively. The highest stability and activity of the purified cellulase was attained at pH 7 and 50°C in the presence of 150 ppm of CaCl 2 , NaCl, and ZnO metal ions. Finally, the biopolishing activity of the cellulase enzyme, as indicated by weight loss percentages of the cotton fabric, was dependent on concentration and treatment time. Overall, the thermotolerant B. subtilis F3 strain has the potential to provide highly stable and highly active cellulase enzyme for use in biopolishing of cotton fabrics.

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Effects of biopolishing on the quality of cotton fabrics using acid and neutral cellulases

Cited by 15 publications

References 11 publications

Process Optimization for Biosingeing of 100% Cotton Terry Towel Fabric Using Box–Behnken Design

Process Optimization for Biosingeing of 100% Cotton Terry Towel Fabric Using Box–Behnken Design

Effects Optimization of Bio-Polishing Industrial Process Parameters

Synthesis, Optimization, and Characterization of Cellulase Enzyme Obtained from Thermotolerant Bacillus subtilis F3: An Insight into Cotton Fabric Polishing Activity

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