Bioresource Technology 249 (2018) 592–598 Contents lists available at ScienceDirect Bioresource Technology journal homepage: www.elsevier.com/locate/biortech Eﬀect of an enzymatic treatment with cellulase and mannanase on the structural properties of Nannochloropsis microalgae a a,b a,b a Gianluca Maﬀei , Maria Paola Bracciale , Alessandra Broggi , Antonio Zuorro , ⁎ ⁎ a,b, a, Maria Laura Santarelli , Roberto Lavecchia DICMA – Department of Chemical Engineering Materials and Environment, Sapienza University, Via Eudossiana 18, 00184 Rome, Italy CISTeC – Research Center in Science and Technology for the Preservation of Historical-Architectural Heritage, Sapienza University, Via Eudossiana 18, 00184 Rome, Italy GR APHICAL A BSTRACT ARTICLE I NFO ABSTRACT Keywords: The eﬀects of an enzymatic treatment with cellulase and mannanase on the properties of marine microalgae Cell wall degrading enzymes Nannochloropsis sp. were investigated. The combined use of these enzymes synergistically promoted the recovery Microalgae of lipids from the microalgae, increasing the extraction yield from 40.8 to over 73%. Untreated and en- Nannochloropsis zymatically treated microalgae were characterized by chemical analysis and by TGA/DTG, FTIR, XRD and SEM. Thermal properties Signiﬁcant changes were observed in the chemical composition and thermal behavior of the microalgae. The Structural characterization enzymatic treatment also resulted in an
Bioresource Technology – Elsevier
Published: Feb 1, 2018
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