Applications of Enzymes in Processing Cellulosic Textiles – A Review of the Latest Developments

Stanescu, Michaela Dina

doi:10.35812/cellulosechemtechnol.2023.57.01

Cited by 3 publications

(2 citation statements)

References 161 publications

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“…Cellulases are Hydrolyses which fragment cellulose, a 1-4 β glucose polymer. The bond cleavage is performed by an acid-base catalysis involving two dicarboxylic amino acids working in tandem [71]. Cellulose is found in the vegetal impurities accompanying raw wool.…”

Section: Enzymes For Wool Processingmentioning

confidence: 99%

Eco-Friendly Processing of Wool and Sustainable Valorization of This Natural Bioresource

Popescu,

Stanescu

2024

Sustainability

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The environmental invasion of plastic waste leads to, among other things, a reassessment of natural fibers. Environmental pollution has shown the importance of the degradability, among other properties, of the raw materials used by the textile industry or other industrial fields. Wool seems to be a better raw material than the polymers that generate large quantities of micro- and nano-plastics, polluting the soil, water, and air. However, the usual processing of raw wool involves a number of chemically very polluting treatments. Thus, sustainable procedures for making wool processing environmentally friendly have been considered, leading to the reappraisal of wool as a suitable raw material. Besides their applications for textile products (including smart textiles), new directions for the valorization of this natural material have been developed. According to the recent literature, wool may be successfully used as a thermal and phonic insulator, fertilizer, or component for industrial devices, or in medical applications, etc. In addition, the wool protein α-keratin may be extracted and used for new biomaterials with many practical applications in various fields. This review makes a survey of the recent data in the literature concerning wool production, processing, and applications, emphasizing the environmental aspects and pointing to solutions generating sustainable development.

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Section: Enzymes For Wool Processingmentioning

confidence: 99%

Eco-Friendly Processing of Wool and Sustainable Valorization of This Natural Bioresource

Popescu,

Stanescu

2024

Sustainability

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“…Cellulose, as one of the renewable and easily accessible materials, is extensively used in the food [179], paper [180], textile [181], packaging [182], pharmaceutical [183,184] and biomedical [185] fields. Hydrogels based on cellulose and its derivatives possess structural and morphological improvements, e.g., pore sizes and swelling ratio enhancement, because of the repulsive forces of intramolecular carboxyl groups [186].…”

Section: Cellulosementioning

confidence: 99%

A Review of Patents and Innovative Biopolymer-Based Hydrogels

Ilić‐Stojanović

Nikolić

Cakić

2023

Gels

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Biopolymers represent a great resource for the development and utilization of new functional materials due to their particular advantages such as biocompatibility, biodegradability and non-toxicity. “Intelligent gels” sensitive to different stimuli (temperature, pH, ionic strength) have different applications in many industries (e.g., pharmacy, biomedicine, food). This review summarizes the research efforts presented in the patent and non-patent literature. A discussion was conducted regarding biopolymer-based hydrogels such as natural proteins (i.e., fibrin, silk fibroin, collagen, keratin, gelatin) and polysaccharides (i.e., chitosan, hyaluronic acid, cellulose, carrageenan, alginate). In this analysis, the latest advances in the modification and characterization of advanced biopolymeric formulations and their state-of-the-art administration in drug delivery, wound healing, tissue engineering and regenerative medicine were addressed.

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Chemical Modification for Resistance to Photo-Oxidative Degradation and Improved Bleaching and Color Fastness Properties of Hemp Fiber

SONMEZ,

MARCELLO,

SALAM

2023

Cellulose Chem. Technol.

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The objective of the research has been to overcome some inherent drawbacks of hemp fiber via chemical modification, which is a vital issue in using it as a textile fiber like cotton. Hemp fiber was modified with treatment liquor (mixture of sulfurous acid and sodium hydroxide) in aqueous medium to remove lignin. The effects of the treatment liquor concentration, fiber to liquor ratio, reaction time and temperature on the percent lignin extracted from hemp fiber were studied. Modified hemp fibers (MHF) were bleached in an alkaline pH aqueous medium with hydrogen peroxide. The process significantly improved lignin removal, bleaching and color fastness. In fact, the whiteness index of bleached MHF was significantly higher than that of bleached raw hemp, but its tensile strength was slightly affected. The photo-oxidative degradation of hemp fiber was 70% lower than that of unmodified (raw) hemp fiber and almost like that of cotton yarn. The color fastness properties of dyed bleached modified hemp fiber were significantly better than those of dyed bleached unmodified hemp fiber and close to those of dyed bleached cotton yarn.

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Applications of Enzymes in Processing Cellulosic Textiles – A Review of the Latest Developments

Cited by 3 publications

References 161 publications

Eco-Friendly Processing of Wool and Sustainable Valorization of This Natural Bioresource

Eco-Friendly Processing of Wool and Sustainable Valorization of This Natural Bioresource

A Review of Patents and Innovative Biopolymer-Based Hydrogels

Chemical Modification for Resistance to Photo-Oxidative Degradation and Improved Bleaching and Color Fastness Properties of Hemp Fiber

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