EP3562326A1 - Gel comportant un coproduit liquide de l'agro-industrie et son utilisation pour l'élevage d'insectes - Google Patents

Gel comportant un coproduit liquide de l'agro-industrie et son utilisation pour l'élevage d'insectes

Info

Publication number
EP3562326A1
EP3562326A1 EP17832785.4A EP17832785A EP3562326A1 EP 3562326 A1 EP3562326 A1 EP 3562326A1 EP 17832785 A EP17832785 A EP 17832785A EP 3562326 A1 EP3562326 A1 EP 3562326A1
Authority
EP
European Patent Office
Prior art keywords
gel
weight
solubles
liquid
product
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP17832785.4A
Other languages
German (de)
English (en)
French (fr)
Inventor
Fanny PEYRICHOU
Solene Comparat
Loïc CLESSE
Thibault DU JONCHAY
Thomas Lefebvre
Myriem BOUZIANE
Fabrice BERRO
Benedicte LORRETTE
Nathalie BEREZINA
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Ynsect SAS
Cargill Inc
Original Assignee
Ynsect SAS
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ynsect SAS filed Critical Ynsect SAS
Publication of EP3562326A1 publication Critical patent/EP3562326A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
    • A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
    • A23K10/38—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material from distillers' or brewers' waste
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
    • A01K67/00—Rearing or breeding animals, not otherwise provided for; New or modified breeds of animals
    • A01K67/033—Rearing or breeding invertebrates; New breeds of invertebrates
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/10—Animal feeding-stuffs obtained by microbiological or biochemical processes
    • A23K10/16—Addition of microorganisms or extracts thereof, e.g. single-cell proteins, to feeding-stuff compositions
    • A23K10/18—Addition of microorganisms or extracts thereof, e.g. single-cell proteins, to feeding-stuff compositions of live microorganisms
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/20—Animal feeding-stuffs from material of animal origin
    • A23K10/26—Animal feeding-stuffs from material of animal origin from waste material, e.g. feathers, bones or skin
    • A23K10/28—Animal feeding-stuffs from material of animal origin from waste material, e.g. feathers, bones or skin from waste dairy products
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
    • A23K10/33—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from molasses
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K10/00—Animal feeding-stuffs
    • A23K10/30—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms
    • A23K10/37—Animal feeding-stuffs from material of plant origin, e.g. roots, seeds or hay; from material of fungal origin, e.g. mushrooms from waste material
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/10—Organic substances
    • A23K20/163—Sugars; Polysaccharides
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K20/00—Accessory food factors for animal feeding-stuffs
    • A23K20/10—Organic substances
    • A23K20/174—Vitamins
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K40/00—Shaping or working-up of animal feeding-stuffs
    • A23K40/20—Shaping or working-up of animal feeding-stuffs by moulding, e.g. making cakes or briquettes
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23K—FODDER
    • A23K50/00—Feeding-stuffs specially adapted for particular animals
    • A23K50/90—Feeding-stuffs specially adapted for particular animals for insects, e.g. bees or silkworms
    • A—HUMAN NECESSITIES
    • A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
    • A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
    • A23N17/00—Apparatus specially adapted for preparing animal feeding-stuffs
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
    • Y02P60/87—Re-use of by-products of food processing for fodder production

Definitions

  • the present invention relates to the feeding of insects and in particular their supply of water in the form of gel.
  • the invention further relates to a diet, a method of preparing said gel, and its applications particularly in the breeding of insects.
  • insects The industrial breeding of insects is in full development and constitutes a major stake for the animal and human food, current and future, notably as an alternative source of animal proteins.
  • the larvae of Tenebrio molitor are particularly popular because they require little food and water to grow in their natural environment.
  • the breeding medium of insect larvae is for example constituted by a nutrient medium such as wheat bran and comprising, as a source of water, fresh fruits and vegetables. Water can also be supplied to insects via atmospheric water or by direct humidification of the substrate.
  • these media do not always provide satisfactory growth and / or acceptable mortality. Indeed, these media generally have at least one of the following disadvantages: a water intake too small, an inability to accurately assess the amount of water introduced / to be introduced into the culture medium, too much humidification of the medium conducive to the development of mold or mud, a complexity in the management of water needs, a difficult waste management that is generally a source of microbiological risk, a water supply at a limited rate for an industrial farm.
  • the present invention therefore relates to a gel comprising:
  • aqueous substrate comprising at least 25% by weight relative to the total weight of aqueous substrate of a liquid co-product of the agro-industry
  • said gel having a water content of greater than 50% by weight relative to the total weight of gel.
  • the inventors have indeed shown that the water supply carried out in a gel form comprising an aqueous substrate comprising at least 25% by weight on the total weight of aqueous substrate of a liquid co-product of the agro-industry allowed a good assimilation of water and nutrients by insects, leading to excellent growth, while limiting production costs through the valorization of co-products from agribusiness.
  • the use of the gel as a water source advantageously makes it possible to stabilize the medium from a microbiological point of view and to secure the insects with respect to any possible sticking.
  • the use of gel-like liquid co-products as a source of water and nutrients also makes it possible to provide insects with nutrients with good nutritional qualities. nutrients that do not undergo any industrial drying stage that could alter them.
  • Liquid co-products from agribusiness are also abundant and, in addition, have a low purchase cost. In addition, these liquid co-products are efficiently converted by certain insects, in particular by Tenebrio molitor.
  • the preferred insects for industrial breeding are, for example, Coleoptera, Diptera, Lepidoptera, Orthoptera, Hymenoptera, Dictopoptera, including the Bats, including Isoptera, and Mantoptera, Pestoptera, Hemiptera, Heteroptera, ephemeroptera and moptera, preferably beetles, dipterans, orthopterans, lepidopterans, blattoptera; or their mixtures.
  • the insects are preferably selected from the group consisting of Tenebrio molitor, Hermetia illucens, Galleria mellonella, Alphitobius diaperinus, Zophobas morio, Blattera fusca, Tribolium castaneum, Rhynchophorus ferrugineus, Musca domestica, Chrysomya megacephala, Locusta migratoria, Schistocerca gregaria, Asexual domestica, Samia ricini or mixtures thereof, and more preferably still, Tenebrio molitor.
  • the invention is directed to insect species having a crusher oral appliance, such as species belonging to the order Coleoptera, Lepidoptera in particular at the larval stage or hymenoptera; or with a piercing mouth-piece, such as species belonging to the order Diptera or Hemiptera.
  • a crusher oral appliance such as species belonging to the order Coleoptera, Lepidoptera in particular at the larval stage or hymenoptera
  • a piercing mouth-piece such as species belonging to the order Diptera or Hemiptera.
  • This gel is advantageously suitable for species belonging to the order Coleoptera such as beetles, ladybugs, lucans, beetles, cockchafers, weevils, ground beetles, and more particularly species of the family Tenebrionidae.
  • the gel diet is typically used for the breeding of Tenebrio molitor (mealworm sucker).
  • the gel is adapted to the larval stage of the insect species referred to above.
  • a co-product is an inevitable material created during a process of manufacturing a product of interest.
  • the co-product of the invention is liquid.
  • liquid is meant that the co-product is in liquid form at room temperature under normal conditions of atmospheric pressure. In particular, this means that it is a co-product obtained directly from an industrial process without any drying step having been carried out.
  • the liquid coproduct is an aqueous coproduct comprising soluble materials.
  • the soluble materials present in the liquid coproduct are proteins and / or carbohydrates such as sucrose and / or lactose, more preferably proteins and carbohydrates. Soluble materials may also include soluble fibers.
  • the liquid coproduct comprises at least 90% by weight of soluble materials on the total weight of dry matter.
  • the co-product has less than 10% insoluble matter on the total weight of dry matter.
  • the liquid co-products of these industries result from the effluents and more particularly from the water generated during the various manufacturing processes that are the subject of these industries.
  • the starch industry and the starch mill aim to separate the constituents of the plant and in particular starch or starch respectively.
  • the malting plant aims to germinate barley and prepare malt, using a so-called malting process.
  • the water generated during the manufacturing process for example when soaking the raw material in water, is called soluble.
  • soluble wheat There are various types of solubles according to the raw material used in this manufacturing process: soluble wheat, corn, potato, peas, barley, cassava.
  • solubles examples include CORAMI® (from wheat), SOLULYS® (from corn) marketed by ROQUETTE or AMYSTEEP 424® (from corn) marketed by TEREOS.
  • the solubles are chosen from wheat solubles and / or corn solubles.
  • distillery solubles There are also distillery solubles. These are obtained by fermentation-distillation of solubles during the bioethanol production process. It is therefore wheat, corn, peas, cassava, barley and cereal solubles (eg wheat, corn, barley).
  • yeast cream Another liquid coproduct can result from this bioethanol production process: yeast cream.
  • a yeast cream can be obtained by other processes such as for example fermentation, distillery or brewery or during bioprocesses for the production of propanediol, succinic acid or polyhydroxyalkanoates.
  • yeast In the case of a yeast cream from a bioethanol manufacturing process, it is advantageously yeast, active or inactive, recovered by filtration at the end of the fermentation process.
  • yeast creams it is possible to find, in particular, yeast creams from the alcoholic fermentation of wheat solubles.
  • the distillation solubles frequently include yeasts used during the fermentation and soluble (undistilled).
  • distillation solubles examples include ALCOMIX® (from wheat) marketed by TEREOS, CORAMI® BE (from wheat) marketed by ROQUETTE, PROTIWANZE® (from wheat). There is also a distillation solubles from wheat, corn and barley.
  • the sugar industry aims to extract sugar from sugar beet or sugar cane.
  • the sugar industry generates several kinds of liquid co-products, including the sewers of candy and molasses.
  • the sewers of candy and the molasses correspond to the syrupy residues obtained after crystallization of the liquor formed during the manufacture of the sugar.
  • Candy sewers contain more sugar than molasses.
  • sugar molasses and sewerage There are different types of sugar molasses and sewerage depending on the raw material used in this sugar process: sugar cane molasses, sugar beet molasses, sugar cane sugar sewers, sugar cane sugar beet sugar sewer.
  • molasses examples include sugar cane molasses such as that marketed by PRIMEAL and sugar beet molasses.
  • the fermentation, distillation and brewing industries aim to use microorganisms to produce microorganisms by multiplication (for example yeasts, especially baker's yeasts), to produce biological substances such as acids. amines (glutamic acid, lysine), organic substances (enzymes) or alcohol.
  • the production of alcohol can be made from raw materials of various origins such as by the fermentation of fruits (grapes, beetroot, sugar cane), cereals (wheat, maize), or cassava.
  • Vinasses are liquid co-products derived from the fermentation of the must after extraction of the compounds of interest.
  • vinasses examples include VINASSE 60® (vinasse for the production of baker's yeasts) and VIPROTAL® (vinasse of beetroot syrup from fermentation for the production of baker's yeasts) marketed by LESAFFRE, PRL 364® (vinasse of sugar beet syrup and glucose resulting from fermentation for the production of glutamic acid) and SIRIONAL® (vinasse of beet syrup and glucose resulting from fermentation for the production of lysine) marketed by AJINOMOTO.
  • VINASSE 60® vinasse for the production of baker's yeasts
  • VIPROTAL® vinasse of beetroot syrup from fermentation for the production of baker's yeasts
  • PRL 364® vinasse of sugar beet syrup and glucose resulting from fermentation for the production of glutamic acid
  • SIRIONAL® vinasse of beet syrup and glucose resulting from fermentation for the production of lysine
  • the yeast creams correspond to the co-products resulting from the separation of the must such as by filtration or centrifugation after fermentation.
  • transformation is meant any process using microorganisms such as, for example, yeasts, bacteria and / or fungi, for the transformation of the raw material.
  • the yeast creams may comprise microorganisms in an active or inactive form, advantageously yeasts.
  • the dairy industry aims in particular at the production of cheeses, butters and creams.
  • Whey also called whey
  • Whey protein concentrates in liquid form are ingredients derived from whey by removing some of the water, minerals and lactose.
  • Permeate is a co-product resulting from the manufacture of milk protein or whey concentrate by ultrafiltration. It contains soluble particles of milk or whey, salts and lactose. The liquid permeate can be concentrated and used before drying.
  • the liquid coproduct is therefore advantageously chosen from the list comprising cereal solubles, corn solubles, wheat solubles, pea solubles, cassava solubles, sugar beet solubles, cane solubles. sugar, grain distillery solubles, wheat distillery solubles, corn distillery solubles, pea distillery solubles, cassava distillery solubles, vinasses, molasses, yeast creams, whey and their concentrated derivatives including permeate, or mixtures thereof.
  • liquid co-products in insect feeding, reduces the costs associated with feeding, while promoting the growth of insects due to the contribution of a co-product with good nutritional properties.
  • the co-products in liquid form allow a better growth than the dry co-products. This can be explained by the fact that the industrial drying processes by which dry co-products are produced alter the nutritional quality of the co-products thus obtained. Thus, liquid co-products have a better nutritional quality than dry co-products.
  • the liquid coproduct has a water content greater than 35% by total weight of the co-product.
  • the water content is greater than or equal to 40%, more preferably greater than or equal to 50%.
  • the liquid coproduct is chosen from the list comprising cereal solubles, corn solubles, wheat solubles, cereal distillers solubles, wheat distillers solubles, corn distillers solubles, vinasses, yeast creams, whey and their concentrated derivatives including permeate, or mixtures thereof.
  • the aqueous substrate comprises water and the co-product of the agro-industry.
  • the aqueous substrate consists of water and the co-product of the agro-industry.
  • the aqueous substrate has a total water content of between 56% and 98.2% by weight relative to the total weight of aqueous substrate, preferably between 60% and 95%, more preferably between 70% and 90%.
  • the gel comprises from 0.3 to 2% by weight of a gelling agent, preferably from 0.5 to 1.5% by weight of a gelling agent, the percentages by weight being given on the total weight of gel.
  • the water content of the gel is greater than 50% by weight relative to the total weight of gel, preferably from 65% to 85% by weight relative to the total weight of gel.
  • the presence in the gel of a preservative makes it possible to limit the development of molds in the gel.
  • the content of preservative is between 0.1 and 3% by weight, more preferably between 0.15 and 0.5% by weight, such as, for example, 0.3% by weight on the weight total gel.
  • the preserving agent is chosen from among the preserving agents that can be used in animal feed and more particularly from the group consisting of acetic acid, sodium acetate, formic acid, fumaric acid, and acid.
  • citric acid citric acid, sorbic acid, potassium sorbate, calcium sorbate, propionic acid, sodium propionate, calcium propionate, benzoic acid, sodium benzoate, calcium benzoate, benzoate potassium, butyric acid, as well as the salts and acids corresponding to these molecules.
  • the preservative is not a paraben.
  • the gel comprises:
  • aqueous substrate comprising at least 25% by weight relative to the total weight of aqueous substrate of a liquid co-product of the agro-industry
  • a preserving agent chosen from the preserving agents that can be used in animal feed and more particularly from the group consisting of acetic acid, sodium acetate, formic acid, fumaric acid, citric acid, sorbic acid, potassium sorbate, calcium sorbate, propionic acid, sodium propionate, calcium propionate, benzoic acid, sodium benzoate, calcium benzoate, potassium benzoate, butyric acid and the salts and acids corresponding to these molecules,
  • said gel having a water content of greater than 50% by weight relative to the total weight of gel.
  • the preservative is potassium sorbate or sodium propionate.
  • the co-product of agribusiness is liquid at room temperature.
  • the content of aqueous substrate is between 95 and 99% by weight relative to the total weight of gel.
  • the aqueous substrate comprises at least 50% by weight of a liquid co-product of the agro-industry, on the total weight of aqueous substrate.
  • the aqueous substrate comprises water and at least 50% by weight, for example at least 75% by weight, of co-product of the agro-industry.
  • the aqueous substrate consists of water and at least 50% by weight, for example at least 75% by weight, of co-product of the agro-industry.
  • when molasses is used it is appropriate to use a maximum amount of 55% by weight of molasses in the substrate.
  • vinasse when used, it is appropriate to use a maximum amount of 70% by weight of vinasse in the substrate.
  • yeast cream when yeast cream is introduced into the aqueous substrate, it should be introduced via a mixture of co-products, so that the amount of yeast cream does not exceed does not exceed 25% by weight in the aqueous substrate.
  • the aqueous substrate comprises water and at least 95% by weight of co-product of the agro-industry.
  • the aqueous substrate consists of water and at least 95% by weight of co-product of the agro-industry.
  • the aqueous substrate consists of a liquid co-product of the agro-industry.
  • the liquid coproduct is selected from the list comprising: cereal solubles, corn solubles, wheat solubles, cassava solubles, cereal distillers solubles, wheat distillers solubles, distillers solubles corn, manioc distillery solubles, yeast cream, whey and its concentrated derivatives, in particular permeate, or
  • a mixture of at least two co-products selected from cereal solubles, corn solubles, wheat solubles, cassava solubles, cereal distillers solubles, wheat distillers solubles, corn distillers solubles , cassava distillery solubles, yeast cream, whey and their concentrated derivatives, in particular permeate, yeast creams, vinasses and molasses.
  • the aqueous substrate has a total water content of between 50% and 95% by weight relative to the total weight of aqueous substrate.
  • the liquid co-product of the agribusiness is a distillery soluble or a mixture of a distillery soluble with another liquid co-product.
  • the distillery solubles are chosen from the group consisting of wheat distillers solubles, corn distillers solubles and cereal distillers solubles.
  • the gel according to the invention also contains a gelling agent.
  • the gelling agent is selected from the group consisting of agar-agar, carrageenan, guar gum, calcium alginate, chitosan, pectin, xanthan gum, carob gum. , gellan gum or mixtures thereof.
  • the gel comprises: from 90% to 99.6% by weight of an aqueous substrate comprising at least 25% by weight relative to the total weight of aqueous substrate of a liquid coproduct agribusiness,
  • a gelling agent selected from the group consisting of agar, carrageenan, guar gum, calcium alginate, chitosan, pectin, xanthan gum, locust bean gum, gellan gum or mixtures thereof, and
  • said gel having a water content of greater than 50% by weight relative to the total weight of gel.
  • the gel comprises:
  • aqueous substrate comprising at least 25% by weight relative to the total weight of aqueous substrate of a liquid co-product of the agro-industry
  • a gelling agent selected from the group consisting of agar, carrageenan, guar gum, calcium alginate, chitosan, pectin, xanthan gum, locust bean gum, gellan gum or mixtures thereof, and
  • a preserving agent being chosen from the preserving agents that can be used in animal feed and more particularly from the group consisting of acetic acid, sodium acetate, formic acid, fumaric acid, citric acid, sorbic acid, potassium sorbate, calcium sorbate, propionic acid, sodium propionate, calcium propionate, benzoic acid, sodium benzoate, calcium benzoate, potassium benzoate, butyric acid and the salts and acids corresponding to these molecules, the percentages by weight of aqueous substrate, gelling agent and preservative being expressed on the total weight of the gel,
  • said gel having a water content of greater than 50% by weight relative to the total weight of gel.
  • the gelling agent is a mixture of xanthan gum and locust bean gum, a mixture of xanthan gum and guar gum, or agar-agar.
  • the gelling agent comprises a 50/50 mixture of xanthan gum and locust bean gum.
  • a gelling agent is marketed under the name Flanogen® XL12 by Cargill.
  • Locust bean gum has the advantage of having an attractive effect on insect larvae and especially on Tenebrio molitor larvae.
  • the gel comprises yeasts.
  • Yeasts can be active or inactive.
  • inactive yeasts it is also intended extracts and / or yeasts bark.
  • yeast peel is meant the insoluble fraction of the yeasts, that is the yeast wall and the yeast plasma membrane. It is therefore not a whole yeast, nor the cellular content of the yeast such as a yeast extract.
  • Yeast bark has very interesting properties in animal or human health or as a dietary supplement in animals and humans.
  • the total yeast content in the gel is between 0.5% and 20% by dry weight of yeasts, preferably from 3 to 15% by dry weight of yeasts, preferably from 4 to 10% by dry weight of yeasts. , on the total weight of gel.
  • Yeasts can come from the liquid co-product of agribusiness.
  • the co-product of the agribusiness can indeed be a distillery soluble that already contains yeasts or a mixture of at least two liquid co-products of the agribusiness, one of which is a yeast cream.
  • the yeasts can be added in solid form, for example, in the form of dry yeasts or as indicated below probiotic.
  • dry yeasts they are introduced at a content of between 0.1 to 6% by weight, preferably between 1 and 5% by weight relative to the total weight of the gel.
  • the agribusiness co-product may contain other nutrients of interest such as minerals.
  • the sodium content of the coproduct is greater than or equal to 1% by total weight of the co-product.
  • the liquid coproduct has a sodium content greater than 2% by weight relative to the total weight of the co-product.
  • the co-product has a sodium content ranging from 1% to 5%.
  • the coproduct advantageously comprises a sulfate content of less than 4% by total weight of the coproduct. Too high a sulphate level could be toxic to Tenebrio molitor larvae and hinder their good development.
  • the co-product has a sulphate content of less than 3%, preferably less than 2%, more preferably less than 1%.
  • the gel according to the invention may further comprise calcium.
  • the yeasts can come from the addition of probiotics to the gel.
  • this probiotic is introduced, for example, at a content of between 0.1 to 8% by weight, preferably between 1 and 5% by weight relative to the total weight of the gel.
  • yeasts As examples of probiotics, mention may be made of LB 2245® yeasts from LALLEMAND. These yeasts also contain vitamins and minerals.
  • the gel according to the invention may also contain from 0.001 to 0.5% by weight of vitamins over the total weight of the gel, such as, for example, from 0.001 to 0.1% by weight of vitamins over the total weight of the gel.
  • Vitamins can be introduced as a composition enriched with vitamins, such as a "premix”.
  • the premix comprises vitamins selected from the group consisting of vitamin A, vitamin B1 (thiamine), vitamin B2 (riboflavin), vitamin B3 (nicotinamide), vitamin B5 (pantothenic acid), vitamin B6 ( pyridoxine), vitamin B8 (biotin), vitamin B9 (folic acid), vitamin B12 (cobalamin), vitamin C, vitamin PP (Niacin), vitamin D3 (cholecalciferol), vitamin E, vitamin K2 (menaquinone), vitamin K3 (menadione) or their precursors and derivatives.
  • vitamins selected from the group consisting of vitamin A, vitamin B1 (thiamine), vitamin B2 (riboflavin), vitamin B3 (nicotinamide), vitamin B5 (pantothenic acid), vitamin B6 ( pyridoxine), vitamin B8 (biotin), vitamin B9 (folic acid), vitamin B12 (cobalamin), vitamin C, vitamin PP (Niacin), vitamin D3 (cholecalciferol), vitamin E, vitamin K2 (mena
  • the premix may also include choline, cholesterol, carnitine and / or inositol, as well as minerals and / or trace elements.
  • the gel may therefore advantageously comprise minerals selected from the group consisting of iron, copper, selenium, chromium, iodine, cobalt, manganese, fluorine, zinc, potassium, phosphorus, magnesium.
  • These minerals can also come from a co-product of the agro-industry or be added via a premix, said premix being a premix of vitamins containing minerals as indicated above or a premix of minerals only.
  • a premix a premix of vitamins containing minerals as indicated above or a premix of minerals only.
  • the vitamin premix is introduced into the gel at a content of between 0.1 and 5% by weight, based on the total weight of gel.
  • the gel according to the invention advantageously has a gel strength of at least 30 g / cm 2 , especially 30 g / cm 2 , 40 g / cm 2 or 50 g / cm 2 , preferably 80 g / cm 2 .
  • insects accept only a certain texture. They must be able to easily cut and ingest pieces of gel using their mouthparts. The gel must therefore be solid.
  • the strength of the gel is between 40 g / cm 2 and 150 g / cm 2 , in particular between 80 g / cm 2 and 150 g / cm 2 .
  • the strength of the gel is between 40 g / cm 2 and 100 g / cm 2 , in particular at least 50 g / cm 2 , or even at least 90 g / cm 2 , more preferably at least 100 g / cm 2 .
  • the strength of the gel is measured using a texturometer.
  • the gel is not sticky or sticky. Insects can therefore move above the gel without being stuck. This reduces insect mortality as insects find themselves less prone to freezing.
  • syneresis of the gel may advantageously be between 0.1 and 5% in order to prevent too much water from being released and to wet the insect environment.
  • the syneresis of the gel can be determined, for example, as indicated in G. BLANCHER (2009), Life Sciences, ENSIA (AgroParisTech). The measurement is carried out on products stored at 4 ° C. for 24 hours, by differential weighing with an analytical balance. Briefly, the product contained in a bucket is weighed, then the surface liquid is removed by tilting the bucket and then with a paper towel lightly pressed against the surface of the product. A second weighing is then performed. Syneresis is expressed as% loss between the two weighings.
  • the gel has a shape adapted to facilitate access to water for insects. It is, for example, in the form of units (blocks) of gel having a volume of between 30 cm 3 and 1500 cm 3 , such as a cube or a parallelepiped with a square base, or a cylinder whose length is the order of 0.5 to 15 cm, preferably 0.8 to 12 cm.
  • the invention also relates to an insect diet comprising a gel and a food:
  • the food being an insoluble substrate having a moisture content of less than or equal to 55% by weight relative to the total weight of the insoluble substrate.
  • the diet according to the invention thus comprises two distinct products, the food not being included in the gel.
  • the diet is used for rearing larvae of Tenebrio molitor.
  • the substrate is said to be "insoluble” because it comprises at least 60% by weight of insoluble matter, relative to the total weight of dry matter.
  • insoluble materials are for example selected from the group consisting of wheat bran, rice bran, corn bran, corn germ cake, corn fiber, legume fiber, wheat remolding , brewer's grains, barley rootlets (derived from malting), peels from tubers, potatoes, pea pulp, beet pulp.
  • the nutrient and water contents of the gel and insoluble substrate are determined so as to administer to the larvae of Tenebrio molitor an amount of nutrients and adequate water.
  • the insoluble substrate has a moisture content of less than 45% by total weight of the insoluble substrate, preferably less than 25%.
  • the advantage of using a gel for water supply reduces the microbiological risks, particularly of mold.
  • the supply of water in the form of a gel makes it possible to limit the water content of the insoluble substrate.
  • the invention also relates to a method for preparing a gel according to the invention, comprising:
  • a step of forming a liquid compound by mixing i. from 90% to 99.6% by weight of an aqueous substrate comprising at least 25% by weight relative to the total weight of aqueous substrate of a liquid co-product of the agro-industry, the aqueous substrate being brought to a temperature allowing the dissolution of a gelling agent;
  • the aqueous substrate, the liquid co-product of the agro-industry, the preserving agent and the gelling agent are as defined above for the gel according to the invention.
  • the process for producing a gel according to the invention may, in particular, comprise the following steps:
  • an aqueous substrate comprising at least 25% by weight relative to the total weight of aqueous substrate of a liquid co-product of the agro-industry, the aqueous substrate being brought to a temperature allowing the dissolution of a gelling agent;
  • aqueous substrate is heated to a temperature of between 60 ° C. and 100 ° C., in particular between 60 ° C. and 85 ° C., for example of the order at 80 ° C, preferably the temperature is such that it is sufficient to dissolve the gelling agent and does not alter the nutritional quality of the liquid coproduct.
  • liquid compound refers to a compound, which is in liquid form at the heating temperature. Indeed, this liquid compound, during its cooling is intended to gel.
  • withdrawal is meant a step of extracting the liquid compound formed by the first step of mixing the aqueous substrate with the gelling agent and the preservative, the tank in which it is located.
  • the racking step makes it possible to extract an appropriate quantity of liquid compound, uniformly mixed, in order to provide the insects with the quantity of gel adapted to their need for water and nutrients.
  • in-line cooling is meant a cooling step along a gel production device, by means provided for this purpose.
  • the liquid compound withdrawn is cooled during its transport, between the tank in which the liquid compound is located and the insect breeding medium.
  • This in-line cooling brings the liquid compound to a temperature below its gelation temperature, which can be for example of the order of 40 ° C. More generally, the compound thus gelled is brought to a temperature compatible with the use for which it is intended.
  • the compound which will be dispensed at a temperature close to its temperature after cooling in line is brought to a maximum temperature of 25 ° C at the outlet of the in-line cooling.
  • In-line cooling can be achieved at one time, or via several cooling stages, by gradual and successive cooling.
  • the transfer step corresponds to the delivery of the gel from the cooling zone to the debiting zone.
  • This routing is carried out by means provided for this purpose.
  • the routing is implemented at a temperature of less than or equal to 25 ° C to maintain the good cohesion of the gel.
  • the debiting step corresponds to a cutting step of the gel.
  • the cutting is carried out by means of mechanical cuts allowing the cutting of the gel according to the needs of water and nutrients of the insects.
  • the gel By gelling the compound in line, after withdrawal in liquid form, and by delivering it into blocks directly at the outlet of a distribution line, the gel is produced as needed and continuously.
  • the handling of the gel and its storage (in gel form) are eliminated, which effectively eliminates the associated problems.
  • the risks of Bacterial contamination or development is severely limited because the gel is dispensed immediately at the outlet of the distribution line, shortly after the compound has been formed.
  • the size of the output blocks can be adapted to the needs of fine, and continuous.
  • the invention further relates to the use of a gel according to the invention as a source of water and / or nutrients for the breeding of insects.
  • the gel according to the invention is used as a source of water and / or nutrients, advantageously as a source of water and nutrients, for the industrial breeding of insects.
  • gel improves larval growth over carrot utilization, even when grown at high densities such as those used in an industrial production facility. Indeed, the growth rate of larvae under these conditions is significantly greater for larvae reared with gel.
  • Feeding insects with sufficient water is therefore a key factor in fast and efficient larval growth. This also makes it possible to considerably increase the productivity of an insect farm, particularly Tenebrio molitor.
  • the gel according to the invention also allows a supply of interesting nutrients.
  • this gel is used for the breeding of Tenebrio molitor, in particular for the breeding of larvae of Tenebrio molitor.
  • the invention relates to the use of a liquid co-product of agribusiness in the form of a gel as a source of water and / or nutrients, advantageously as a source of water and nutrients, for the cultivation of insects, especially the industrial breeding of insects.
  • FIG. 1a is a diagram illustrating the growth and mortality of Tenebrio molitor larvae reared on gels comprising various liquid co-products of the agribusiness (two wheat solubles, a soluble grain distillery and a vinasse) ;
  • Figure 1b corresponds to the growth curve of Tenebrio molitor in breeding on gels containing the liquid co-products of the agro-industry mentioned in Figure 1 a;
  • FIG. 1 c is a diagram illustrating the food conversion index FCR, also called consumption index, calculated for Tenebrio molitor according to the liquid co-product of agribusiness, in gel form, which has been incorporated into its regime food;
  • FIG. 2 comprises a FIG. 2a which is a table showing comparative diets comprising liquid co-products of a wheat and maize starch factory, dried or freeze-dried, and a FIG. 2b, which comprises two diagrams illustrating the results obtained. in terms of growth and FCR of food, obtained for different comparative diets described in Figure 2a;
  • FIG. 3 includes a FIG. 3a which is a table showing comparative diets comprising liquid co-products of a wheat starch factory, dried or freeze-dried, as well as a FIG. 3b, which comprises two diagrams illustrating the results obtained in terms of growth and FCR of food, obtained for different comparative diets described in Figure 3a;
  • FIG. 4 includes a FIG. 4a which is a table showing comparative diets comprising liquid co-products of a wheat and maize starch mill, in wet form or in gel form, and FIG. 4b, which comprises two diagrams illustrating the results obtained in terms of growth and FCR of the food, obtained for different comparative diets described in Figure 4a;
  • FIG. 5 is a table showing comparative diets comprising liquid co-products of a starch factory of wheat and maize, in wet form or in the form of a gel, FIG. as well as a Figure 5b, which includes two diagrams illustrating the results obtained in terms of growth and FCR of the food, obtained for different comparative diets described in Figure 5a; and
  • FIG. 6 represents the evaluation of the mechanical properties of the gels enriched with wheat solubles with an incorporation in gelling agent (Xanthane Caroube mixture) of 0.30%, 0.50% and 0.70% of Example IV (measurement the strength of the gel as a function of the distance traveled by a cylindrical mobile used to apply pressure to the surface of the gel) carried out using a TA-XT Plus texturometer (Stable Micro Systems, TA-XT Plus, Surrey ,
  • Example I Examples of gels according to the invention. A. The products used in the gels according to the invention
  • Solulys is a concentrated solution of maize solubles obtained in the first stage of grain fractionation in a wet starch process. This concentrated solution comprises 48% by weight of dry matter on the total weight of solution and 44% by weight of protein and 24% by weight of lactic acid, the latter two percentages by weight being expressed on the total weight of dry matter of the solution.
  • This corn soluble composition comprises 42.5% by weight of dry matter relative to the total weight of the composition and 44% by weight of proteins relative to the total weight of dry matter of the composition.
  • This wheat soluble composition comprises about 20% by weight of dry matter on the total weight of the composition and about 28% by weight of protein on the total weight of dry matter of the composition.
  • PROTIWANZE® marketed by the company CROPERNERGIES. This wheat distillery soluble comprises 27% by weight of dry matter on the total weight of distillery soluble and 27% by weight of protein on the total weight of distillery soluble solids.
  • VINASSE 60® marketed by LESAFFRE. This vinasse comprises 60% by weight of dry matter on the total weight of vinasse and 60% by weight of protein on the total weight of dry matter of vinasse.
  • ⁇ VIPROTAL® marketed by LESAFFRE. This vinasse comprises 60% by weight of dry matter on the total weight of vinasse and 44% by weight of protein on the total weight of dry matter of vinasse.
  • SUGARCANNE MOLASSE marketed by PRIMEAL. This molasses comprises 75% by weight of dry matter on the total weight of molasses and 5% by weight of protein on the total weight of molasses solids.
  • Vitamin B1 Thiamine 0.004
  • Vitamin B2 Riboflavin 0.003
  • Vitamin B3 Nicotinic acid 0.048
  • Vitamin B6 Pyridoxine 0.003
  • Vitamin B8 Biotin 0.0001
  • Vitamin B9 Folic Acid 0.0002
  • Vitamin B12 Cobalamin 0.00001
  • Inactive yeasts containing barley gluten and
  • Vitamin A (IU) ⁇ 0.60
  • Vitamin B1 Thiamine 1, 00
  • Vitamin B2 Riboflavin 1, 20
  • Vitamin B6 Pyridoxine 1, 00
  • Vitamin B8 Biotin 0.01
  • Vitamin B9 Folic Acid 0.16
  • Vitamin B12 Cobalamin 0.0001
  • Potassium b) Gel comprising a vitamin premix and an aqueous substrate consisting of soluble wheat
  • Potassium gel comprising an aqueous substrate consisting of a soluble wheat
  • Gel comprising an aqueous substrate consisting of a mixture of soluble wheat and corn soluble
  • Potassium g) Gel comprising an aqueous substrate consisting of a mixture of soluble 75% wheat and gelled with agar-agar
  • the above gels can be prepared in the following manner.
  • the co-product (s) of the agro-industry and optionally the water is / are heated to a temperature above 80 ° C., then mixed with the other constituents of the mixture: the possible probiotics and premixes, at least one gelling agent and at least one preservative in the given proportions.
  • the mixture thus obtained is then gradually lowered to room temperature so that the gel is formed.
  • a gel was formed according to Example I, consisting of 99% by weight on the total weight of gel of an aqueous substrate comprising 25% by weight on the weight of aqueous substrate of each of the co-products of the aforementioned agro-industry. and 75% by weight on the weight of aqueous water substrate, 0.7% Flanogen XL12 (Cargill®), a 50/50 mixture of xanthan gum and locust bean gum, and 0.3% of potassium L-sorbate.
  • a control gel was also formed consisting of water, 0.7% by weight of
  • Flanogen XL12 (Cargill®) and 0.3% by weight of potassium L-sorbate, the percentages by weight being given on the total weight of gel.
  • the larvae of Tenebrio molitor used for each series of experiments come from the same population from Ynsect laboratory breeding at Evry and were collected at two different times.
  • the insect mass is returned to 10 grams by random selection of a sample of individuals to return to the optimal density.
  • the experiments lasted 14 days and were conducted in the dark, in a climatic chamber to control the temperature at 24 ° C and the relative humidity at 60%.
  • the larvae of Tenebrio molitor were fed ad libitum twice a week with a basal medium and the gels as obtained above.
  • the medium was weighed to evaluate the growth and mortality of the larvae so high.
  • Mcumul (t) Mcumul (t - 1) + Mcumul (t - 1) x ⁇
  • the use of gel co-product as a source of nutrients and water is particularly advantageous for the cultivation of larvae of Tenebrio molitor and allows for improved growth compared with a gel made of water.
  • Example III Advantages of the gels according to the invention on the development of larvae of Tenebrio molitor.
  • the larvae of Tenebrio molitor used for each series of experiments come from the same colony from Ynsect's laboratory farm in Evry and were collected at two different times.
  • the variables studied are the daily growth rate (GR, calculated as indicated in Example II) and the food conversion index (FCR).
  • the treatments ending with the letter S in their code correspond to diets consisting of a gel consisting solely of water and a nutrient substrate, said substrate corresponding to liquid co-products. dried according to two drying methods: industrial drying and lyophilization drying.
  • the diets are composed so as to respect the proportions of production of co-products given in dry matter for each industry of starch manufacture studied.
  • Starch co-products included in other diets are:
  • wheat bran WB_A and WB_B
  • WB_0 is a milling wheat bran.
  • the ingredients used 100% in the treatments A1 S (CPT_A) and B1 S (CPT_B) correspond to products sold by the starch manufacturers (industrially dried on the spot) and are composed by the freeze-dried liquid coproducts used in the respective regimes A2S (WB_A and SB_A) and B2S (WB_B and SB_B), and for which the proportions were kept.
  • a "control" treatment consisting of a milling wheat bran diet and a gel comprising an aqueous substrate consisting of water was included (A0 and B0).
  • FIGS 2b and 3b for products from Plant A and Plant B, respectively.
  • the diets are composed so as to respect the proportions of production of co-products given in dry matter for each industry of starch manufacture studied.
  • Starch co-products included in diets are:
  • wheat bran WB_A and WB_B
  • the gel given to the larvae of Tenebrio molitor corresponds to small pieces composed of 0.75% of Flanogen XL12 (Cargill, France) which is a mixture of xanthan gums and carob, 0.3% of potassium sorbate and supplemented with water and / or liquid co-product according to the treatment.
  • the amount of gel brought to the diet was adjusted according to the humidity of the substrate so as not to overfeed the larvae of Tenebrio molitor. For dry substrates with water content less than or equal to 15%, 6 grams of water were provided by the gel.
  • the amount of water to be supplied by the gel has been calculated according to the following formula:
  • the diets are composed so as to respect the proportions of production of co-products given in dry matter for each industry of starch manufacture studied.
  • the addition of the co-product in the form of a gel makes it possible to provide a co-product in a liquid form having preserved nutritional qualities, without generating a risk of increased mortality which would be due to a water content of the medium that is too high.
  • Example IV Evaluation of the impact of the gelling percentage on the physical properties of the enriched gels and the consequences on the consumption of the larvae;
  • the gels used in this study are shown in Table 10 below.
  • the liquid co-product (wheat solubles from the extraction of starch and mixed with solubles and distilling yeasts) is incorporated between 99% and 99.4% in the enriched gels, counting the addition of potassium sorbate at 0.3% and according to the inclusion of the gelling agent at 0.30%, 0.50% and 0.70% (by weight on the total weight of the gel).
  • the gelling agents used are: a mixture of Xanthan and Carob gums (Flanogen XL12, Cargill France), a mixture of Xanthan and Guar gums (Algaia, France) and agar agar for the food industry (Biocean , France).
  • the enriched gels were manufactured at 80 ° C for 15 minutes using a multifunctional cooker "Amicook” (Amicook Family gourmet, France). They were sunk rapidly in cylindrical boxes of 137.4 cm 3 volume, then placed 24 hours at 4 ° C for caking. All gels have a standard volume of 78.5 cm 3 (height: 4 cm, diameter: 5 cm).
  • the evaluation of the mechanical properties of the gels was carried out using a TA-XT Plus texturometer (Stable Micro Systems, TA-XT Plus, Surrey, France) and its "Exponent" analysis software. This method makes it possible to measure the hardness, the elasticity and mainly the strength of the various gels tested.
  • a cylindrical cell with a diameter of 6.45 mm was used to apply a pressure on the surface of the gel until reaching the limit depression of 20 mm after contact.
  • the penetration speed was set at 1.6mm / sec and the output speed at 10mm / sec.
  • the test was carried out with the gels enriched with wheat solubles with a concentration of gelling agent (Xanthane Caroube mixture) of 0.30%, 0.50% and 0.70%.
  • the bottom curve is relative to the incorporation of 0.30% of gelling agent, that of the medium is relative to the incorporation of 0.50% of gelling agent and that of the top relates to the incorporation of 0.70% gelling agent.
  • the strength of the gel (g / cm 2 ) corresponding to the force required to break and perforate the gel
  • the deformation (mm) corresponding to the distance traveled by the moving body between the initial contact and the fracture of the gel
  • the larvae of Tenebrio molitor used for this experiment come from the same colony from Ynsect laboratory breeding at Evry and were taken simultaneously from the same batch. They were fasted for 48 hours before launch and have an average initial weight of 33 mg.
  • a ratio of 0.5 g of gel per 2.5 g of larva was placed in clear plastic verrines with a square base (dimensions: 4 x 4 x 7.5 cm).
  • the enriched gels were cut with a cookie cutter and placed in the center of the verrine to guarantee the same area of access to the gel by the larvae.
  • the experiment was conducted in the dark in a climate chamber to control the temperature at 26 ° C and the relative humidity at 60%. The observations were made every hour until the total consumption of the gel. Once the gel was consumed in full, the mortality and individual weight of the larvae were recovered by counting and weighing.
  • Table 11 Results of strength, deformation, firmness and consumption of enriched gels with wheat solubles (gelling agent: Xanthane Caroube).
  • the results show that the gel consumption time increases slightly with the gelling agent concentration: an additional 5 hours of consumption time for a 0.7% gelling gel compared to a 0.3% gel. Mortality and larval weight gain are equivalent regardless of gelling concentration.
  • the results show that a gel enriched with liquid co-products is more easily consumed by T. molitor larvae when the gel strength is about 50 g / cm 2 .
  • Other observations show that, for a gel strength of less than 20 g / cm 2 , the gel is not formed, the liquid coproduct solution flows into the breeding unit, and consequently the larvae are stuck and die.

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EP17832785.4A 2016-12-29 2017-12-28 Gel comportant un coproduit liquide de l'agro-industrie et son utilisation pour l'élevage d'insectes Pending EP3562326A1 (fr)

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CN111317080A (zh) * 2020-03-10 2020-06-23 松颉环保科技(深圳)有限公司 一种利用废弃液体原料制备的黑水虻饲料及其制备方法
CN111374242A (zh) * 2020-03-10 2020-07-07 松颉环保科技(深圳)有限公司 一种包含废弃液体原料的黑水虻饲料及其制备方法
FR3110595A1 (fr) * 2020-05-21 2021-11-26 Innovafeed Méthode de fabrication de substrat d’élevage de larves
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FR3125205B1 (fr) 2021-07-13 2023-06-23 Ynsect Procédé de préparation d’un bloc de gel
FR3130516A1 (fr) * 2021-12-16 2023-06-23 Innovafeed Procédé de préparation d’un substrat d’élevage de larves d’insectes par hydrolyse enzymatique et substrat obtenu

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