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没药提取物对聚乳酸和聚丙烯熔纺复丝纱线结构与性能的影响表征

Characterization of Myrrh Extract Effect on Polylactide and Polypropylene Melt Spun Multifilament Yarn Structure and Properties.

作者信息

Bolskis Evaldas, Griškonis Egidijus, Marksa Mindaugas, Ragelienė Lina, Adomavičiūtė Erika

机构信息

Faculty of Mechanical Engineering and Design, Kaunas University of Technology, Studentu St. 56, 51424 Kaunas, Lithuania.

Faculty of Chemical Technology, Kaunas University of Technology, Radvilenu Rd. 19, 50254 Kaunas, Lithuania.

出版信息

Materials (Basel). 2024 Nov 28;17(23):5843. doi: 10.3390/ma17235843.

DOI:10.3390/ma17235843
PMID:39685279
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11642445/
Abstract

Myrrh has unique medicinal properties: it is an anti-inflammatory, antifungal, and antibacterial material. The aim of this study was to assess the influence of ethanolic myrrh extract on the production and properties of modified PP and PLA melt spun yarns. In this work, multifilament yarns of polylactide (PLA) and polypropylene (PP) containing 10 wt% myrrh resin at different melt-spinning drawing ratios (DRs) were prepared. The results of scanning electron microscopy revealed that the multifilament yarns from polymers covered by myrrh resin extract had a smooth surface without cracks or visible myrrh derivatives. The influence of myrrh resin on the mechanical properties of PP and PLA multifilament yarns was analyzed, and it was found that the presence of myrrh (PP/M, PLA/M) increased tenacity (cN/tex) and decreased the tensile strain (%) of melt spun yarns obtained at different draw ratios (DRs). During optical analysis, it was found that the absorbance of yarns increased in the entire UV region of the spectra, which was most likely determined by the presence of myrrh. The degree of crystallinity and the wetting angle of PP/M and PLA/M multifilament yarns increased compared with the pure PLA and PP multifilament yarns. This study concludes that the presence of myrrh derivatives influences PLA yarns degradation rate and antibacterial effects against Gram-positive bacteria.

摘要

没药具有独特的药用特性

它是一种抗炎、抗真菌和抗菌物质。本研究的目的是评估没药乙醇提取物对改性聚丙烯（PP）和聚乳酸（PLA）熔纺丝的生产及性能的影响。在这项工作中，制备了含有10 wt%没药树脂、具有不同熔体纺丝拉伸比（DR）的聚乳酸（PLA）和聚丙烯（PP）复丝纱线。扫描电子显微镜结果显示，被没药树脂提取物覆盖的聚合物制成的复丝纱线表面光滑，无裂缝或可见的没药衍生物。分析了没药树脂对PP和PLA复丝纱线力学性能的影响，发现没药（PP/M、PLA/M）的存在提高了不同拉伸比（DR）下获得的熔纺丝的强度（cN/tex）并降低了拉伸应变（%）。在光学分析过程中，发现纱线在光谱的整个紫外区域的吸光度增加，这很可能是由没药的存在所决定的。与纯PLA和PP复丝纱线相比，PP/M和PLA/M复丝纱线的结晶度和润湿角有所增加。本研究得出结论，没药衍生物的存在会影响PLA纱线的降解速率以及对革兰氏阳性菌的抗菌效果。

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Terpenoids from Myrrh and Their Cytotoxic Activity against HeLa Cells.
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Molecules. 2023 Feb 8;28(4):1637. doi: 10.3390/molecules28041637.
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Pharmacological Studies on the Antidiabetic, Antioxidant, and Antimicrobial Efficacies of Resin in Streptozotocin-Induced Diabetes in Rats: A Preclinical Study.树脂对链脲佐菌素诱导的糖尿病大鼠的降血糖、抗氧化和抗菌作用的药理学研究：一项临床前研究。
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