Improvement in carbohydrate and phlorotannin extraction from Macrocystis pyrifera using carbohydrate active enzyme from marine Alternaria sp as pretreatment
Author
dc.contributor.author
Leyton, A.
Author
dc.contributor.author
Pezoa Conte, R.
Author
dc.contributor.author
Maki Arvela, P.
Author
dc.contributor.author
Mikkola, J. P.
Author
dc.contributor.author
Lienqueo Contreras, María Elena
Admission date
dc.date.accessioned
2018-05-15T14:44:45Z
Available date
dc.date.available
2018-05-15T14:44:45Z
Publication date
dc.date.issued
2017
Cita de ítem
dc.identifier.citation
J Appl Phycol (2017) 29:2039–2048
es_ES
Identifier
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10.1007/s10811-017-1141-3
Identifier
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https://repositorio.uchile.cl/handle/2250/147765
Abstract
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The commercial importance of brown seaweed has been increasing over the past decade, especially due to industries interested in the extraction of phycocolloids and, more recently, of polyphenol compounds such as phlorotannins. The objective of this work was to optimize the extraction conditions of carbohydrates and phlorotannins from Macrocystis pyrifera, evaluated enzymatic pretreatment and different parameters of extraction using design of experiment. The optimal conditions upon extraction of the carbohydrates and phlorotannins were determined by means of a pretreatment protocol taking advantage on a carbohydrate active enzyme, followed by an alkaline hydrolysis with 0.5 N NaOH at 100 degrees C, 180 min, and S/L ratio of 1/20. In order to extract the carbohydrates, the best conditions found for the pretreatment procedure were 37 degrees C, pH 7.0 for 24 h, and a S/L ratio of 1/10, giving an extraction yield (EY) of 89.67 +/- 12.3 wt.%. In turn, for the extraction of phlorotannins, the best conditions identified in terms of the pretreatment were 25 degrees C, pH 7.0 for 36 h, and a S/L ratio of 1/20, thus giving a yield (EY) of 2.14 +/- 0.25 wt.%. Statistical analysis of both processes revealed a maximum EY of 91.24 wt.% for carbohydrates and 3.31 wt.% EY for phlorotannins.
es_ES
Patrocinador
dc.description.sponsorship
CONICYT, AKA-ERNC 009 / Centre for Biotechnology and Bioengineering (CeBiB), FB-0001 /
Academy of Finland, 268937 / Knut and Alice Wallenberg Foundation /
Abo Akademi University
Improvement in carbohydrate and phlorotannin extraction from Macrocystis pyrifera using carbohydrate active enzyme from marine Alternaria sp as pretreatment