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Lignin in Biological Systems
Published in Severian Dumitriu, Valentin Popa, Polymeric Biomaterials, 2020
As is known, the lignin is taken up as a “dietary fiber” when vegetables and fruits are consumed. It is thought that dietary fiber is useful for the prevention of some diseases (such as cancer), although most is excreted without being digested. To clarify the influence of dietary fiber on an organism, it is important to examine the relationship between the dietary fiber and enterobacteria. In respect to the influence of lignin on enterobacteria, it was reported that woody lignin shows antibacterial activity against Klebsiella pneumoniae, Pseudomonas aeruginosa, Escherichia coli, and Staphylococcus aureus (Nelson et al. 1994).
Investigation and comparison of antibacterial property of bamboo plants, natural bamboo fibers and commercial bamboo viscose textiles
Published in The Journal of The Textile Institute, 2021
Bahrum Prang Rocky, Amanda J. Thompson
Generally, a gram-positive and a gram-negative bacterium are recommended for antibacterial activity tests for textile materials. Staphylococcus aureus, a gram-positive facultative bacterium that can grow even without oxygen, is one of the most common pathogens that live on human skin and causes skin infections, food poisoning, respiratory infections and many others issues (Tanaka et al., 2011). It has been reported that half a million people are hospitalized due to S. aureus, with 50, 000 deaths each year in the USA (Schlecht et al., 2015). Therefore, testing with S. aureus is highly recommended, especially with products that interact with the human body such as textiles. Klebsiella pneumoniae (K. pneumoniae) is one of the most common gram-negative, facultative anaerobic, bacterium that lives on the skin, in the mouth and intestine, and may cause many serious diseases such as pneumonia, urinary tract infections and liver diseases (Paczosa & Mecsas, 2007; Vading et al., 2018). Thus, S. aureus and K. pneumoniae bacteria were selected for this study.