ArticleFrontiers in chemistry2025
Extraction of tobacco extract from discarded tobacco leaves for cigarette yarns dyeing and neophytadiene separation.
Article in Frontiers in chemistry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
A continuous process integrating extracting valuable compounds from waste tobacco leaves for cigarette yarns dyeing and neophytadiene separation was developed, enabling sequential production of tobacco crude extract, colored yarns, tobacco-derived absolute, and neophytadiene. Systematic comparison of residues from four regions revealed that Lanxiong-derived biomass demonstrated the highest extract yield (25%), providing optimal raw material for scaled neophytadiene production. GC-MS and NMR analyses confirmed >98% purity and structural integrity of purified neophytadiene. When the crude extract was applied directly to cotton yarns dyeing, the dyed yarn with 1.5 wt% tobacco crude extract solution from Zunyi achieved a K/S value of 2.013 and exhibited a yellow-brown hue shift that met visual identification requirements for cigarette yarns. The dyed yarns retained over 90% tensile strength of untreated controls, while elongation and unevenness indices showed no statistically significant alterations. This integrated approach establishes a green and sustainable technological route for valorizing tobacco waste within circular economy frameworks.
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