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1. WO2019103607 - IMPROVED BIOREFINERY OF BROWN MACROALGAE

Publication Number WO/2019/103607
Publication Date 31.05.2019
International Application No. PCT/NL2018/050783
International Filing Date 21.11.2018
IPC
C08B 37/12 2006.01
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
BPOLYSACCHARIDES; DERIVATIVES THEREOF
37Preparation of polysaccharides not provided for in groups C08B1/-C08B35/110; Derivatives thereof
12Agar-agar; Derivatives thereof
CPC
C07C 29/76
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
29Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom not belonging to a six-membered aromatic ring
74Separation; Purification; Use of additives, e.g. for stabilisation
76by physical treatment
C07C 31/26
CCHEMISTRY; METALLURGY
07ORGANIC CHEMISTRY
CACYCLIC OR CARBOCYCLIC COMPOUNDS
31Saturated compounds having hydroxy or O-metal groups bound to acyclic carbon atoms
18Polyhydroxylic acyclic alcohols
26Hexahydroxylic alcohols
C08B 37/0003
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
BPOLYSACCHARIDES; DERIVATIVES THEREOF
37Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
0003General processes for their isolation or fractionation, e.g. purification or extraction from biomass
C08B 37/0024
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
BPOLYSACCHARIDES; DERIVATIVES THEREOF
37Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
0006Homoglycans, i.e. polysaccharides having a main chain consisting of one single sugar, e.g. colominic acid
0024beta-D-Glucans; (beta-1,3)-D-Glucans, e.g. paramylon, coriolan, sclerotan, pachyman, callose, scleroglucan, schizophyllan, laminaran, lentinan or curdlan; (beta-1,6)-D-Glucans, e.g. pustulan; (beta-1,4)-D-Glucans; (beta-1,3)(beta-1,4)-D-Glucans, e.g. lichenan; Derivatives thereof
C08B 37/0084
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
BPOLYSACCHARIDES; DERIVATIVES THEREOF
37Preparation of polysaccharides not provided for in groups C08B1/00 - C08B35/00; Derivatives thereof
006Heteroglycans, i.e. polysaccharides having more than one sugar residue in the main chain in either alternating or less regular sequence; Gellans; Succinoglycans; Arabinogalactans; Tragacanth or gum tragacanth or traganth from Astragalus; Gum Karaya from Sterculia urens; Gum Ghatti from Anogeissus latifolia; Derivatives thereof
0084Guluromannuronans, e.g. alginic acid, i.e. D-mannuronic acid and D-guluronic acid units linked with alternating alpha- and beta-1,4-glycosidic bonds; Derivatives thereof, e.g. alginates
C08L 5/04
CCHEMISTRY; METALLURGY
08ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
LCOMPOSITIONS OF MACROMOLECULAR COMPOUNDS
5Compositions of polysaccharides or of their derivatives not provided for in groups C08L1/00 or C08L3/00
04Alginic acid; Derivatives thereof
Applicants
  • NEDERLANDSE ORGANISATIE VOOR TOEGEPAST-NATUURWETENSCHAPPELIJK ONDERZOEK TNO [NL]/[NL]
Inventors
  • SMIT, Adrianus Theodorus
  • HUIJGEN, Wouter, Johannes, Joseph
Agents
  • NEDERLANDSCH OCTROOIBUREAU
Priority Data
201994921.11.2017NL
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) IMPROVED BIOREFINERY OF BROWN MACROALGAE
(FR) BIOAFFINAGE AMÉLIORÉ DES MACROALGUES BRUNES
Abstract
(EN)
The present invention concerns an improved process for biorefinery of brown macroalgae, which comprises: (a) contacting the brown macroalgae with a solvent system comprising at least 30 wt% organic solvent, to obtain extracted macroalgae as solid residue and a liquor; and (b) biorefining the extracted macroalgae. The inventors have found that the contacting of step (a) results in an efficient and cost-effective dewatering of the macroalgae, wherein up to 95 wt% of the internal moisture of the macroalgae could be lost without the need for energy-consuming drying techniques. As such, the downstream biorefinery of the extracted macroalgae is greatly facilitated.
(FR)
La présente invention concerne un procédé amélioré de bioaffinage des macroalgues brunes, qui comprend : (a) la mise en contact des macroalgues brunes avec un système de solvant comprenant au moins 30 % en poids de solvant organique, pour obtenir des macroalgues extraites sous forme de résidu solide et une liqueur ; et (b) le bioaffinage des macroalgues extraites. Les inventeurs ont découvert que la mise en contact de l'étape (a) conduit à une déshydratation efficace et rentable des macroalgues, avec perte de jusqu'à 95 % en poids de leur humidité interne sans avoir besoin de recourir à des techniques de séchage consommatrices d'énergie. De ce fait, le bioaffinage aval des macroalgues extraites est considérablement facilité.
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