Abrégé

A method for preparing an extract of herb(s) and/or spice(s) is obtained by infusion from a vinegar salt or from a slightly reacidified vinegar salt, used as extraction solvent. Additionally, the method described for preparing an extract of herb(s) and/or spice(s) concerns the obtaining of a concentrated extract of herb(s) and/or spice(s) having an increased flavor content while limiting loss of vinegar when preparing the same.

Classes IPC  ?

• C12J 1/08 - Addition d'aromates
• A23L 27/10 - Épices, agents aromatiques ou condiments naturelsLeurs extraits

Abrégé

The invention concerns a process for preparing a herb(s) and/or spice(s) extract obtained by infusion from a vinegar salt or from a slightly reacidified vinegar salt, used as extraction solvent. Moreover, the described herb(s) and/or spice(s) extract preparation process relates to the production of a concentrated herb(s) and/or spice(s) extract having an increased flavouring content while limiting the loss of vinegar during preparation thereof.

Classes IPC  ?

• A23L 27/10 - Épices, agents aromatiques ou condiments naturelsLeurs extraits
• C12J 1/02 - VinaigreSa préparation ou sa purification à partir du vin
• C12J 1/08 - Addition d'aromates

Abrégé

The invention relates to a method for the continuous production of lactic acid (first fermentation product) and a second fermentation product selected from the group consisting of alcohols and biogas, from necessarily dry grinding of cereals and more specifically corn. According to said method, a main flow and a flow of waste that is difficult to ferment are recovered from the grinding; said two flows are treated separately but simultaneously, in order to produce, by fermentation, lactic acid and an alcohol and/or biogas.

Classes IPC  ?

• C12P 7/56 - Acide lactique
• C12M 1/00 - Appareillage pour l'enzymologie ou la microbiologie

Abrégé

The invention relates to a method for increasing the shelf life of meat-based or fish-based food products, while at the same time preserving an acceptable appearance thereof, by treating these products with an antibacterial (or antimicrobial) composition obtained from a fermentation liquor containing lactic acid neutralized with an alkali metal hydroxide.

Classes IPC  ?

• A23B 4/20 - Composés organiquesMicro-organismesEnzymes
• C12R 1/07 - Bacillus
• C12R 1/13 - Brevibacterium

Abrégé

The present invention relates to an industrial process for producing a lactic ester containing in total at least seven carbon atoms, from a fermentation liquor containing ammonium lactate in order to avoid the inherent production of gypsum, with a high yield and according to which the loss of lactic ester in the form of lactamide is limited as much as possible.

Classes IPC  ?

• B01D 3/00 - Distillation ou procédés d'échange apparentés dans lesquels des liquides sont en contact avec des milieux gazeux, p. ex. extraction
• C07C 67/08 - Préparation d'esters d'acides carboxyliques par réaction d'acides carboxyliques ou d'anhydrides symétriques avec le groupe hydroxyle ou O-métal de composés organiques
• C07C 69/68 - Esters d'acide lactique
• C07C 67/54 - SéparationPurificationStabilisationEmploi d'additifs par modification de l'état physique, p. ex. par cristallisation par distillation

Abrégé

The present invention relates to a method for stereospecifically chemically recycling a polylactic acid (PLA) polymer mixture in order to reform the monomer thereof or one of the derivatives thereof. The latter can be used on the traditional lactate market or can be reused as raw material for PLA synthesis.

Classes IPC  ?

• C08F 6/28 - Purification
• C08F 8/12 - Hydrolyse
• C08F 8/50 - Dépolymérisation partielle
• C07C 67/03 - Préparation d'esters d'acides carboxyliques par réaction d'un groupe ester avec un groupe hydroxyle

Abrégé

The invention relates to a method for purifying a conventional polymer flow (PE, PP, PET, PVC, etc.) contaminated with a maximum of 50% PLA, including the steps of suspending the polymer by solubilizing the PLA fraction, and of recovering the purified polymer after separation.

Classes IPC  ?

• C08J 11/08 - Récupération ou traitement des résidus des polymères sans réaction chimique utilisant des solvants sélectifs des constituants polymères

Abrégé

Object of this invention is a catalyst and a process for the hydrodehalogenation of halogenated and polyhalogenated aromatic and aliphatic hydrocarbons or for reductive conversion of recalcitrant environmental contaminants in soil and sediments comprising a polymeric phase constituted of a mixture of biodegradable polymer, oligomer and monomers dissolved in a biodegradable solvent and a catalytic component constituted of zerovalent metal.

Classes IPC  ?

• B09C 1/08 - Régénération de sols pollués par des procédés chimiques

Abrégé

Process for the recycling of a polymer blend necessarily containing PLA, comprising the following steps: grinding; compaction; dissolving in a solvent for PLA; removal of undissolved contaminating polymers; hydrolytic depolymerization reaction; and purification.

Classes IPC  ?

• C07C 51/09 - Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides à partir de lactones ou d'esters d'acides carboxyliques
• C07C 59/08 - Acide lactique
• C08F 8/50 - Dépolymérisation partielle
• C08F 8/12 - Hydrolyse
• C08F 6/28 - Purification

Abrégé

Process for the recycling of a polymer blend necessarily containing PLA, comprising the following steps: grinding; compaction; dissolving in a solvent for PLA; removal of undissolved contaminating polymers; depolymerisation reaction by alcoholysis; and purification.

Classes IPC  ?

• C07C 51/09 - Préparation d'acides carboxyliques, de leurs sels, halogénures ou anhydrides à partir de lactones ou d'esters d'acides carboxyliques
• C07C 59/08 - Acide lactique
• C08F 8/50 - Dépolymérisation partielle
• C08F 8/12 - Hydrolyse
• C08F 6/28 - Purification

Abrégé

Method for purifying lactic acid by crystallization in one or more steps, characterized in that crystals are formed starting from an impure aqueous solution of lactic acid having a coloration of > 500 Hazen, at a concentration of between 85% and 95%, by controlling the level of lactic acid oligomers expressed in terms of a relative monomer content above 80% and controlling the degree of supersaturation of the solution between 1% and 60% in order to obtain lactic acid crystals having a specific surface area by mass of < 0.05 m2/g.

Classes IPC  ?

• C07C 51/43 - SéparationPurificationStabilisationEmploi d'additifs par changement de l'état physique, p. ex. par cristallisation
• C07C 59/08 - Acide lactique

Abrégé

Solid calcium lactate in the form of substantially spherical particles, characterized in that it has a particle size distribution such that most of the particles have sizes between 280 and 550 microns and in that it can be rapidly dissolved in water.

Classes IPC  ?

• C07C 51/42 - SéparationPurificationStabilisationEmploi d'additifs
• C07C 59/08 - Acide lactique

Abrégé

A continuous process for obtaining a lactic ester, characterized in that it comprises the following steps: a) reaction for esterification of a composition comprising an alcohol in the presence of a composition comprising lactic acid in excess; b) extraction of a vapour phase of this reaction medium, loaded with lactic ester, alcohol, water and traces of lactic acid; c) distillation of the vapour phase obtained in step b) so as to recover the lactic ester, the alcohol and the water at the top; d) distillation of the fraction obtained in step c) so as to recover the purified lactic ester at the bottom.

Classes IPC  ?

• C07C 67/08 - Préparation d'esters d'acides carboxyliques par réaction d'acides carboxyliques ou d'anhydrides symétriques avec le groupe hydroxyle ou O-métal de composés organiques
• C07C 67/54 - SéparationPurificationStabilisationEmploi d'additifs par modification de l'état physique, p. ex. par cristallisation par distillation
• C07C 69/68 - Esters d'acide lactique

Abrégé

The invention relates to a method for producing lactic acid by the fermentation of a sugar cane extract using a micro-organism that belongs to the gender Bacillus or Sporolactobacillus. The fermentation medium is self-sufficient. The method may also include at least one purification step. The lactic acid thus produced is heat-stable and has a particularly high purity.

Classes IPC  ?

• C12P 7/56 - Acide lactique