A comparative evaluation of the action of savinase and papain to the cutinase-pretreated wool

Wang, Ping; Wang, Qiang; Cui, Li; Fan, Xuerong; Yuan, Jiugang; Gao, Murong

doi:10.1007/s12221-010-0586-9

Cited by 16 publications

(13 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The shrinkage performance of enzyme treatment (4.3%) is better than that of the Chlorine-Hercosett treatment (6.0%). Less strength loss and tenacity loss after the Chlorine-Hercosett process may be due to hercosett polymer deposition [34]. Color change after Chlorine-Hercosett treatment and multiple padding enzyme treatment is shown in Table 5.…”

Section: Resultsmentioning

confidence: 99%

Eco-Friendly and Highly Efficient Enzyme-Based Wool Shrinkproofing Finishing by Multiple Padding Techniques

et al. 2018

View full text Add to dashboard Cite

Wool fibers usually need shrinkproofing finishing. The enzyme process is an eco-friendly technology but the traditional exhaustion treatment usually takes excessive time. This study developed a novel multiple padding shrinkproofing process of wool with Savinase 16L and an organic phosphine compound {[HO(CH2)n]3P, n ∈ (1, 10)}. SEM and XPS analyses were employed to compare the wool treated respectively by exhaustion and by padding to reveal the effect of multiple padding. The results showed that treated wool fiber achieved the requirement of machine-washable (area shrinkage less than 8% according to standard TM 31 5 × 5A) in 2.5 min by the padding process. The padding process can control the adsorbance of enzyme on wool, which makes treatment more uniform and avoids strong damage of the wool. Also, the removal efficiency of the disulfide bond was about 15 times as much as in the exhaustion treatment in 2.5 min. The average catalytic rate of the padding process was 14 times faster than the exhaustion process, and the process time (2.5 min) decreased by 32.5 min compared with the exhaustion process (35 min). Multiple padding techniques can achieve continuous production and replace the environmentally harmful chlorination process. Our results provide the underlying insights needed to guide the research of the enzyme process application.

show abstract

Section: Resultsmentioning

confidence: 99%

Eco-Friendly and Highly Efficient Enzyme-Based Wool Shrinkproofing Finishing by Multiple Padding Techniques

et al. 2018

View full text Add to dashboard Cite

show abstract

“…A certain amount of the hydrolyzates were dissolved in 1 mL of 0.10 M hydrochloric acid. The contents of tyrosine in silk fibers were subsequently analyzed by Agilent 1100 series HPLC system (Agilent Technologies, USA) .…”

Section: Methodsmentioning

confidence: 99%

Modification of Bombyx mori silk fabrics by tyrosinase‐catalyzed grafting of chitosan

Wang

Cui

et al. 2013

Engineering in Life Sciences

Self Cite

View full text Add to dashboard Cite

Tyrosinase could oxidize tyrosyl residues in silk fibroin and result in the production of activated o‐quinone residues, which could facilitate the grafting of the functional amino‐compounds onto silk fibers. In this study, the enzymatic modifications of Bombyx mori silk fibroin with tyrosinase and chitosan were investigated, aiming at improving the properties of silk fabrics, including dyeability, crinkling resistance, and antibacterial activity. The grafting grades of chitosan were evaluated by a color‐development method using bromocresol green. The result indicated that chitosan molecules were not only adsorbed on silk fibers via electrostatic interactions, they also could react with the oxidized silk fibers with tyrosinase. For the silk fabric combinedly treated with tyrosinase and chitosan, tensile strength and crinkling resistance were noticeably increased as compared to that of the chitosan‐treated. The antibacterial activity and its durability measurements revealed the actions of the tyrosinase‐catalyzed grafting of chitosan. The efficacy of the graft reaction might be further enhanced by increasing the accessibility of reactive sites in silk fibers.

show abstract

“…The results indicated that the cutinase-protease combined process altered the hydrophobic property of wool surface, the obtained shrinkage after washing decreased to approximately 4 % [8]. However, for the thick wool fabric the shrinkage was still more than 6 % after the similar treatment [9], which apparently did not satisfy the commercial requirement according to the standard of IWS TM 31. This was partially due to the inability of cutinase to the disulfide cross-links in the exocuticle and the limited efficacy of proteolytic reaction in wool scales.…”

Section: Introductionmentioning

confidence: 93%

The combined use of cutinase, keratinase and protease treatments for wool bio-antifelting

Wang

Cui

et al. 2011

Fibers Polym

Self Cite

View full text Add to dashboard Cite

A combined treatment method of cutinase, keratinase, and protease was applied in the wool processing to modify the wool properties. The results demonstrated that individual protease treatment did not obviously improve the wettability and anti-felting property of wool fabrics. The combined process of cutinase and protease seemed more efficient than the keratinase-protease method, the obtained wettability and anti-felting ability of wool fabric were more encouraging. The combined use of cutinase, keratinase, and protease treatments endowed wool with more satisfactory properties compared to other methods. The contact angle of the protease-treated wool fabric reduced to 66 o and the area shrinkage decreased to 5.2 % with an acceptable strength loss of 14 %. Reaction mechanism of the three-step enzymatic process was proposed in this paper. The data from amino acid analysis revealed the cooperative actions of cutinase, keratinase, and protease treatments during the combined enzymatic processing.

show abstract

A comparative evaluation of the action of savinase and papain to the cutinase-pretreated wool

Cited by 16 publications

References 18 publications

Eco-Friendly and Highly Efficient Enzyme-Based Wool Shrinkproofing Finishing by Multiple Padding Techniques

Eco-Friendly and Highly Efficient Enzyme-Based Wool Shrinkproofing Finishing by Multiple Padding Techniques

Modification of Bombyx mori silk fabrics by tyrosinase‐catalyzed grafting of chitosan

The combined use of cutinase, keratinase and protease treatments for wool bio-antifelting

Contact Info

Product

Resources

About