当前位置: X-MOL 学术Rend. Fis. Acc. Lincei. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Antimicrobial finishing of hide/leather by atmospheric pressure plasma and extracts of Cassia renigera and Cassia fistula bark
Rendiconti Lincei. Scienze Fisiche e Naturali ( IF 1.810 ) Pub Date : 2020-09-22 , DOI: 10.1007/s12210-020-00954-2
Mona Vajpayee , Mumal Singh , Hemen Dave , Nisha Chandwani , Lalita Ledwani , S. K. Nema

Abstract

In this study, pre-tanning stage goat hide was treated with atmospheric pressure air dielectric barrier discharge with the aim to provide an eco-friendly antimicrobial finishing. The untreated and the air plasma-treated hide pieces were incubated in sterilized agar media. Upon incubation, untreated sample showed noteworthy growth of fungus, while the plasma-treated piece remains unaffected which clearly reveals the sterilization capacity of the plasma treatment. The fungus grown on untreated sample was cultured and identified with fungal specific ITS rRNA gene sequence and Basic Local Alignment Search Tool and found to be strains of Curvularia sp. with 100% similarity to Curvularia caricae-papayae and 99% similarity to Curvularia pseudobrachyspora. The untreated and plasma-treated goat hide samples were subsequently dipped into the extract obtained from bark of two Cassia species: Cassia renigera and Cassia fistula to provide antifungal/antibacterial finishing. Effectiveness of this anti-fungal finishing was demonstrated by inoculating the samples with culture of the fungus and incubation. The obtained results indicate that samples treated with the plasma and the extracts finishing deliver substantial antifungal activity in comparison to that of untreated extract finished goat hide. Additionally, the plasma treated followed by plant extract finished samples provide evidence of antibacterial finish which has been confirmed by zone of inhibition against a Gram-positive bacteria Staphylococcus aureus. Activation of hide surface and generation of various functional groups due to the plasma treatment were accountable for better uptake of the extracts and thus imparting antimicrobial finish.

Graphic abstract



中文翻译:

大气压血浆以及决明子和决明子皮的提取物对生皮/皮革的抗菌修饰

摘要

在这项研究中,对鞣制前的山羊皮进行了大气压空气介电屏障放电处理,目的是提供一种生态友好的抗菌整理剂。将未处理的和经空气等离子体处理的生皮在无菌琼脂培养基中孵育。孵育后,未经处理的样品显示出明显的真菌生长,而经血浆处理的样品则保持不受影响,这清楚地揭示了血浆处理的杀菌能力。培养未经处理的样品上生长的真菌,并用真菌特异性ITS rRNA基因序列和Basic Local Alignment Search Tool进行鉴定,发现它们是Curvularia sp。的菌株。与弯曲弯曲菌100%相似,与弯曲弯曲假单孢菌99%相似。随后将未经处理和经血浆处理的山羊皮样品浸入从两种决明属物种的树皮中提取的提取物中:决明子决明子瘘,以提供抗真菌/抗菌作用。通过用真菌培养物接种样品并孵育,证明了这种抗真菌整理的有效性。获得的结果表明,与未经处理的提取物成品山羊皮相比,用血浆和提取物整理剂处理的样品具有明显的抗真菌活性。此外,经过血浆处理的植物提取物样品提供了抗菌效果的证据,这已被革兰氏阳性菌的抑制区域所证实。金黄色葡萄球菌。由于等离子体处理,皮革表面的活化和各种官能团的产生是提取物更好吸收的原因,因此赋予了抗菌效果。

图形摘要

更新日期:2020-09-22
down
wechat
bug