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TitleUltrasound-assisted extraction of hemicellulose and phenolic compounds from bamboo bast fiber powder
Author(s)Wang, Cheng
Tallian, Claudia
Su, Jing
Vielnascher, Robert
Silva, Carla
Cavaco-Paulo, Artur
Guebitz, Georg M.
Fu, Jiajia
Issue dateJun-2018
PublisherPublic Library of Science (PLOS)
JournalPLoS One
CitationWang, Cheng; Tallian, Claudia; Jing Su; Vielnascher, Robert; Silva, Carla; Cavaco-Paulo, Artur; Guebitz, Georg M.; Fu, Jiajia, Ultrasound-assisted extraction of hemicellulose and phenolic compounds from bamboo bast fiber powder. PLoS One, 13(6), e0197537, 2018
Abstract(s)Ultrasound-assisted extraction of hemicellulose and phenolic compounds from bamboo bast fibre powder was investigated. The effect of ultrasonic probe depth and power input parameters on the type and amount of products extracted was assessed. The results of input energy and radical formation correlated with the calculated values for the anti-nodal point (λ/4; 16.85 mm, maximum amplitude) of the ultrasonic wave in aqueous medium. Ultrasonic treatment at optimum probe depth of 15 mm improve 2.6-fold the extraction efficiencies of hemicellulose and phenolic lignin compounds from bamboo bast fibre powder. LC-Ms-Tof (liquid chromatography-mass spectrometry-time of flight) analysis indicated that ultrasound led to the extraction of coniferyl alcohol, sinapyl alcohol, vanillic acid, cellobiose, in contrast to boiling water extraction only. At optimized conditions, ultrasound caused the formation of radicals confirmed by the presence of (+)-pinoresinol which resulted from the radical coupling of coniferyl alcohol. Ultrasounds revealed to be an efficient methodology for the extraction of hemicellulosic and phenolic compounds from woody bamboo without the addition of harmful solvents.
Publisher version
AccessOpen access
Appears in Collections:CEB - Publicações em Revistas/Séries Internacionais / Publications in International Journals/Series

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