FN Archimer Export Format
PT J
TI Soft liquefaction of the red seaweed Grateloupia turuturu Yamada by ultrasound-assisted enzymatic hydrolysis process
BT 
AF LE GUILLARD, Cecile
   BERGE, Jean-Pascal
   DONNAY-MORENO, Claire
   BRUZAC, Sandrine
   RAGON, Jean-Yves
   BARON, Regis
   FLEURENCE, Joel
   DUMAY, Justine
AS 1:1,2;2:3;3:1;4:1;5:1;6:1;7:2;8:2;
FF 1:;2:;3:PDG-RBE-BRM-LEMMMB;4:PDG-RBE-BE-LBCM;5:PDG-RBE-BRM-LEMMMB;6:PDG-RBE-BRM;7:PDG-DRV-VP-BPQ;8:;
C1 IFREMER, Ctr Nantes, BIORAFHE, BP 21105, F-44311 Nantes 03, France.
   LUNAM Univ Nantes, MMS, 2 Rue Houssiniere,BP 92208, F-44322 Nantes 03, France.
   IDMer, 2 Rue Bateliere, F-56100 Lorient, France.
C2 IFREMER, FRANCE
   UNIV NANTES, FRANCE
   IDMER, FRANCE
SI NANTES
SE PDG-RBE-BRM-LEMMMB
   PDG-RBE-BE-LBCM
   PDG-RBE-BRM
   PDG-DRV-VP-BPQ
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-univ-france
IF 2.616
TC 24
UR https://archimer.ifremer.fr/doc/00308/41877/44316.pdf
LA English
DT Article
DE ;Ultrasound-assisted enzymatic hydrolysis;Enzymatic hydrolysis;Ultrasound;Liquefaction;Algae;Grateloupia turuturu
AB Ultrasound-assisted enzymatic hydrolysis is a recent process, increasingly employed for plant biomass liquefaction and the recovery of soluble biomolecules. However, to our knowledge, it has never been used on seaweeds, particularly wet ones. The aim of this study was to compare the efficiency of three processes on the liquefaction of the red seaweed Grateloupia turuturu Yamada: enzyme-assisted extraction (EAE), ultrasound-assisted extraction (UAE), and their combination, ultrasound-assisted enzymatic hydrolysis (UAEH). These comparisons will allow the identification as to which process achieves the highest extraction yield of water-soluble compounds. For this purpose, experiments were conducted at 40 °C for 6 h using an enzymatic cocktail of four industrial carbohydrases and an original ultrasonic flow-through reactor. After 6 h, similar profiles were observed between EAE and UAE with the recovery of 71–74 % of the initial material into the soluble phase. However, when these processes were combined, up to 91 % solubilized material was observed in the same time, with a synergistic effect after 2 h. From a biochemical point of view, UAEH improved the extraction of nitrogen and carbon compounds and, more precisely, carbohydrates and amino acids. This study demonstrates that ultrasound improved the enzymatic hydrolysis, probably by an increase in the mass transfer and a disruption of the thallus due to the implosion of the cavitation bubbles generated. UAEH is clearly an efficient procedure for the liquefaction of wet seaweeds, enabling the recovery of valuable components.
PY 2016
PD AUG
SO Journal Of Applied Phycology
SN 0921-8971
PU Springer
VL 28
IS 4
UT 000383571300046
BP 2575
EP 2585
DI 10.1007/s10811-015-0788-x
ID 41877
ER

EF