C08B37/00

POLYMERIC BLEND CONTAINING POLY ALPHA-1,3-GLUCAN
20170362345 · 2017-12-21 ·

A polymeric blend composition comprising: (a) from about 1 to about 99 wt. % of a polymer; and (b) from about 1 to about 75 wt. % poly alpha-1,3-glucan is disclosed. The addition of alpha-1,3-glucan as a polymer filler can increase the tensile modulus, tensile strength and oxygen barrier properties of the polymeric blend composition.

Method of industrial extraction of alginates from brown seaweed of the family sargassaceae of the order fucales
11685794 · 2023-06-27 ·

The invention comprises a method of industrial extraction of alginates from brown seaweeds of the family Sargassaceae of the order Fucales, as well as the product resulting from the method. The method includes the following stages: preparation of raw materials, crushing of the algae, pressure boiling of the algae, mixing the boiled algae with water, purification of the diluted algal mass, extraction of alginic acid, washing of the alginic acid, dehydration of the alginic acid, treatment of the alginic acid with sodium hydrogen carbonate, clarification of resultant sodium alginate solution, precipitation of sodium alginate gel, and drying of the sodium alginate gel.

CAPSULE CONTAINING BEVERAGE POWDER, IN PARTICULAR FOR PREPARING BREWED COFFEE
20230189836 · 2023-06-22 ·

A capsule, especially for preparing a beverage from beverage powder, in particular of coffee from coffee powder, by introducing water into the capsule, wherein the capsule comprises a compacted pellet made of a powder containing at least one polysaccharide, wherein the compacted pellet is sheathed with at least one coating layer, wherein the at least one coating layer comprises a cross-linked polysaccharide, wherein the cross-linked polysaccharide can be obtained by cross-linking a polysaccharide with a cross-linking agent without the use of a polyol spacer.

A method for manufacturing such a capsule comprises the following steps: i) preparing a compacted pellet from a powder containing at least one polysaccharide, ii) bringing at least one part and preferably the entire surface of the compacted pellet used in step i) into contact with a solution of a polysaccharide in a solvent or with a dispersion of a polysaccharide in a dispersant, iii) when appropriate, removing of the compacted pellet from the solution or dispersion of step ii), iv) bringing the compacted pellet obtained in step ii) or iii) into contact with at least one cross-linking agent, v) when appropriate, removing the compacted pellet from the solution of step iv) and vi) drying of the compacted pellet obtained in step iv) or v).

Method for making pentoses and pentose-based soluble oligo/polysaccharides from cereal grain involving debranning technology

The present invention provides a method for the extraction and isolation of soluble arabinoxylan products from cereal grain. Preferably, such soluble arabinoxylan product is any one of soluble arabinoxylan, arabinoxylan-oligosaccharides, xylose, arabinose, ferulic acid and mixtures thereof. Said method comprises partial debranning of whole cereal grains to obtain partially debranned cereal grains followed by roller milling of said partially debranned cereal grains to obtain cereal bran. The method further comprises the mashing of at least part of said cereal bran in water optionally involving the treatment of the mash with any one of an enzyme preparation, an acid, a base, a peroxide or combinations thereof, either simultaneously or sequentially, to solubilize and optionally depolymerize a fraction of the arabinoxylan comprised in said cereal bran. Preferably, said treatment is done with an enzyme preparation containing an endoxylanase. The method further comprises the separation from said mash of a solubilized fraction, which comprises at least part of the solubilized soluble arabinoxylan products.

POLYALPHA-1,3-GLUCAN ESTERS AND ARTICLES MADE THEREFROM

The disclosure generally relates to poly_alpha-1,3-glucan compositions and articles containing them. In particular interest are compositions comprising poly_alpha-1,3-glucan ester derivatives. The poly_alpha-1,3-glucan derivatives are useful in thermoprocesses and in particular, injection molding processes.

POLYALPHA-1,3-GLUCAN ESTERS AND ARTICLES MADE THEREFROM

The disclosure generally relates to poly_alpha-1,3-glucan compositions and articles containing them. In particular interest are compositions comprising poly_alpha-1,3-glucan ester derivatives. The poly_alpha-1,3-glucan derivatives are useful in thermoprocesses and in particular, injection molding processes.

Biocompatible in situ hydrogel

The present invention provides compositions, and related kits and methods, for formation of hydrogels. The compositions comprise one or more chemically crosslinkable agents dissolved in an aqueous solution to form a precursor solution. The chemically crosslinkable agents useful in the present invention are selected from polymers modified with a molecule selected from acrylate, maleimide, vinylsulfone, N-hydroxysuccinimide, aldehyde, ketone, carbodiimide, carbonate, iodoacetyl, mercaptonicotinamide, quinone, thiol, amine, and combinations thereof. The precursor solution is characterized as being in an aqueous form at a non-physiologic physical-chemical condition and undergoing gelation when in contact with another fluid or body at a physiologic physical-chemical condition.

PRODUCED WATER BORATE CROSSLINKING COMPOSITIONS AND METHOD OF USE

A composition and method for treating a fracturing fluid comprising produced water with high levels of dissolved solids using a polymer crosslinked with a boron compound and a high pH alkylamine buffer. The composition improves the viscosity stability of the fracturing fluid at elevated bottom-hole temperatures, particularly when the fluid has high levels of calcium and magnesium. The composition is particularly useful with polysaccharides, including galactomannan gums, such as guar gum, locust bean gum, and karaya gum, and allows for the use of the preferred boron compound crosslinkers in high total dissolved solids fracturing fluids without the pH destabilization problems encountered with the prior art.

HEAVY METAL ADSORBENT AND METHOD FOR SIMULTANEOUS REMOVAL OF LEAD AND COPPER IN WASTEWATER USING THE SAME
20230191367 · 2023-06-22 ·

The present inventive concept relates to a heavy metal adsorbent, and more particularly, to an eco-friendly adsorbent including a biopolymer and being capable of simultaneously adsorbing and recovering lead and copper, and a method of preparing the same. According to the present inventive concept, since the present adsorbent exhibits a property of being insoluble in water due to the ester bond through the esterification reaction between xanthan gum which is one of the biopolymers, and citric acid, it solves the problem that recovery was impossible due to the water solubility of existing biopolymers; lead and copper can be effectively adsorbed and recovered in an aqueous solution; and the biopolymer and citric acid used in the adsorbent are bio-derived and biodegradable and therefore have eco-friendly advantages over existing adsorbents.

METHOD OF FORMING A PURIFIED BETA-1,3,-GLUCAN
20170356020 · 2017-12-14 ·

A method for producing a purified beta-1,3-glucan includes growing a biomass from genus Euglena organism and dewatering the grown biomass. The biomass is lysed to form a lysed biomass, which is washed and dewatered to produce a beta-1,3-glucan. The beta-1,3-glucan is dried to produce the purified beta-1,3-glucan.