Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for the valorisation of yeast biomass resulting from the production of ethanol

a technology of ethanol and biomass, which is applied in the field of production of dried yeast biomass, can solve the problems of poor economic exploitation of spent cereal grains, high production cost of liquid yeast, and many breweries not being equipped to dry liquid yeas

Pending Publication Date: 2022-05-19
ROQUETTE FRERES SA
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The result is a poor economic exploitation of spent cereal grains, which are mainly used to feed ruminants (dairy cattle, beef cattle, sheep, goats), adult monogastric animals with low-protein needs, or fish and Crustacea of herbivorous type (carp, tilapia, shrimp).
Many breweries are not equipped to dry the liquid yeast, which will have to be transported over large distances in order to be dried.
It is then a main product, and not a coproduct, the production cost of which is high, and which is not very accessible to the livestock animal feed and pet feed industry.
Furthermore, since all of the dry mass is recovered for the production of this protein feed and since no separation step is carried out before concentration then drying of this feed, it comprises large amounts of ash.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

example 1

n of the Composition According to the Invention

[0120]A fermentable must based on wheat starch comprising 4% of gluten and 4% of residual fibers is prepared.

[0121]The pH of the fermentable must is fixed at 5.5. After explosion of the starch by steam injection under pressure, the temperature is maintained at 90° C. for a contact time of two hours.

[0122]The liquefied must thus obtained is then placed at 60° C. and its pH is adjusted to 4.5 in order to be subjected to the enzymatic saccharification treatment.

[0123]A glucoamylase and a pullulanase are added in addition to the alpha-amylase.

[0124]The hydrolyzed starch thus obtained consist mainly of glucose.

[0125]Before carrying out the fermentation step, cooling to a temperature of 35° C. is performed. The Saccharomyces cerevisiae yeast is introduced so as to convert, in an anoxic medium, into ethanol and carbon dioxide.

[0126]Air and urea are added at the beginning of fermentation and the pH is maintained at a value of 4. At the end of f...

example 2

ion of the Spontaneous Consumption of the Composition Rich in Yeast Protein According to the Present Invention

Experimental Plan of Action:

[0138]52 adult horses in individual boxes (28 geldings, 24 mares) were fed for 4 consecutive days.

[0139]Distribution of the usual concentrate ration, said usual ration consisting of a mixture of barley, oats, dehydrated alfalfa, and minerals) with in addition 50 g (deposited at the surface) of the composition rich in yeast protein according to the present invention or of control pure brewer's yeast. (Provision by Top-Feeding).

[0140]In order to prevent artefacts due to the characteristics of the horses, each of the horses was fed with the composition rich in yeast protein and with the brewer's yeast according to the following scheme:[0141]26 horses were fed with the composition according to the present invention for the first two days and then with the control brewer's yeast for the next two days; and[0142]26 horses were fed with the control brewer...

example 3

lity of the Proteins of the Composition Rich in Yeast Protein According to the Present Invention

[0146]A representative sample of the composition was used to perform a measurement of amino acid digestibility “in vivo”, on growing pigs.

[0147]The protocol used and the research station are identical to that which is described in the 2009 publication, Journées de la Recherche Porcine, 41, 117-130, Valeur nutritionnelle des drêches de blé européennes chez le porc en croissance [Nutritional value of European spent wheat grains in growing pigs] (Station de Recherche [Research Station] Arvalis—France).

[0148]The amino acid composition results, and the standardized ileal digestibility coefficients of said amino acids, are presented in the table below, in comparison with the average of the 10 European spent wheat grains collected during the summer of 2007, and of the values of the INRA / AFZ 2002 table, dehydrated brewer's yeast.

Average of 10Composition of theEuropean spentpresent inventionDehydr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to compositions rich in yeast proteins, methods for producing processing wheat for recovery of the compositions rich in yeast proteins, and uses therefor as animal feed.

Description

FIELD OF THE INVENTION[0001]The present invention relates to the production of a dried yeast biomass, resulting from an ethanol fermentation process. More particularly, the present invention relates to a process which allows better exploitation of ethanol production coproducts.PRIOR ART[0002]The production of ethanol based on cereals has developed greatly throughout the world, in order to meet the desire to replace fuels of fossil origin with a renewable origin produced by agriculture.[0003]The usual process starting from cereals consists of placing in an aqueous medium, enzymatic hydrolysis, fermentation using Saccharomyces cerevisiae and distillation. It generates ethanol, with respect to approximately one third of the dry matter, carbon dioxide with respect to another third of the dry matter, and the remainder is a coproduct that will generally be dried, so as to become spent distillation cereal grain intended to feed animals.[0004]In the United States of America, the production ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(United States)
IPC IPC(8): A23K10/38A23K50/20A23K50/42
CPCA23K10/38Y02P60/87A23K50/42A23K50/20
Inventor LECOCQ, ALINEDELPORTE, CHRISTIAN
Owner ROQUETTE FRERES SA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com