DE721263C - Process for the production of odorless feed from fish - Google Patents

Description

Process for the production of odorless fodder from fish It is already known to fish and filler waste, such as are available, for example, in fish kettle factories. gc - el) at least to be processed on animal feed after removal of the oily residue. However, these products have the disadvantage that they still contain the typical fish odors. As a result, such fodder 111 does not become common at all in some cases in a number of animals. In other cases ihi-c # use is made more difficult or iiilmii, "licli geillaclit," that the tranquil smell and taste of the fish meal is transferred to milk, butter, eggs, meat or fat, for example.

The present invention loves the task at hand, odorous to produce flawless feed from fish that is not only fresh no fish odor zciger, but also with L: i ;; - # rii the fish odor does not occur again.

In the German]) patent specification ;; 292 i <1 adopt a process in order to make so-called amcrik: - nical meat meal, that is, a heall laser measure of mammals freed from their salt crumbs, ground and keratinized by drying in the heat, \ # "o11 their peculiar smell and GCSchlllacl; 7u iici i-cictl and to swell. Since:. Vr ° -fahren consists in daia maul the @lci; <@ I1-melll with a diluted acid, e.g. l ',. Chb, r- \ 1'aSSCI'SItt @ lS; ltll'C # full 0, i to 1171. 111i; a cntsprcchencl diluted alkali until the boiling point: - The liquid is heated until the -lasse is on; couol? en, then by adding alkali Neutralized by acid. This process is not suitable for the solution of the problem on which the invention is based. at \ vcrtvolle stolic. zumilrt bzr :. I; l earth worthless inverted animals. On the other hand, boiling with acid alone is not enough. do odorless and ii; cllgcschmackirrie Fuurrmhwl to crhahcli.

I) ie German patent specification I.1425; refers to the representation from Liweil @ from ci \ vcil @ halti; @cn materials, including fresh meat. The procedure described in it is based on the fact that the initial substances are diluted with it inorganic acids such as hydrochloric acid. S: illletcrsiiui-c. or Sch \ vcfk-1-s: iure, or organic acids, if the temperature is too high, up to the boiling point 111! I1 this saurrll easily I @ Ctlti'all> 1 @ 1 "t, solldCrll 1111t" -: tSSCr odci- one a11dCrC11 lildlllt @ -rclltcn Flü; = ikcit von ent; llrcdlolul llühcrcr Tcnipc rmur auscw; ischcn will. This -. 'S @ -el-fahr "1 Klee) also refer to I: i \ vcil.laus@all._ stolit an \ vci: dc ;;, dit # cillcr prechalldlung with _ \ limli unwrz, each n have been. This too, Vcl'fahrell is for IIc # r> tcilun, @ von gcruchi @ lscli huttcrnüttcl: l: tu = l @ i @ c liclr not gcci; @llct, da dit- Ilt # h.lndlunti: -t 'hischu illit salll "v allcill l) ci crhiihter "Even in the case of the hodia, the temperature of the body is insufficient for complete lyodination. 1); 1S desired girl can also. not through di.c @ x`scliricllc'lic pretreatment with Alkali reached before your heating with acids \ verdell.

I) ic British ('1'aitcntscluih 18 365% o111 years loi 1 also describes the Ilerstclluii ;; of food and feed from lischun by aufcinandcrfofgcndc I3chandlun full l @ is (-livii with oi- to o, 2ooigrr acid solution - or with 0.1- 1) 1s or 2 (above alkaline solution 1) r1 Tcnlllvr; Iturc hl full et \\ -: t 50 and With 0.5- 11i, t.5cl; nigcr: \ lkalilüsung at temperatures 1-01l (#about 8o '.: \ Ttc'll this method is unsuitable for the solution of the problem of the present disclosure, which already emerges therefrom, since the British patent specification hischk @ is <#, fish paste, ice cream or fish bread are to be produced , ie generally products with a pronounced fishy smell and taste that is particularly highlighted (p. a, lines 22 to 2.1 of the patent specification ). In the alkaline aftertreatment, at 80 "undesirable: \ ndcrtui,; cn of proteins.

According to the invention, it is possible to use simple and cheap \ Vcise Fishing. inshcsonderc low-oil fish, we cod. Pollack and the like .. odorous and äescilIllacl: ll ('ll flawless I # utteltmittcl, with which also hciin bearings the smell of fish does not appear, by producing the fish that are suitable for the purpose entrails. have been freed. züii u "ich, st a cooking treatment in weak acid Tuid baths them after removing the acid. Treatment liquid in weakly alkaline cu. Wetting agent-intensive baths in normal or elevated baths Temperatures. z. H. between 15 and, ;; . nachhch; mdc-lt and those of the akaüschcn 73chaltdlullg @ l7üs @ igkrit exempted products in the usual \\ eisc #, e.g. B. by. dry and Mahicn, treated.

Through the acid treatment, which is not like that of the British patent step 1) c1 50, but under boiling, we (!. Fish are already freed from the main part of the inferior, picture-forming components (collagen) and typical odor stains In front of: \ ctzmittelit wcrdun the existing title-desired odor and taste stotic 'resth) s. This is due to (1: 11I clil_ Nctzmittc # 1 sciwcdd itself rille d @@) cr; @iereiidc \\ 'effect on you to licseidy'tldcil Stcitii @: 111sü1) v11 as well as a @lc = @@ llder < deep penetration of the = @ llc1iivii i11 das Iiscliei \ vcil @ crln @ ili (-liell. Since the alkaline N; 1 (11-in l @ c '; @ cu \ y-art full Nrtzniitie'ii in? c @ cgc'll,; lti to major the British!) File: i <chrilt with normal or only moderately increased Temperature takes place. the protein suffers (: c too kl'll; @ ' unwanted changes. In the practice of the invention, how follow an example: i) larine sea fish. the GE- gc'l, eiieiif: tll., from the lingc \ veidcn are freed, are ema = hours of movement, e.g. B. strongly diluted by stirring with cincr Acid. r. B. Lssigs; iure, cooked. All place from la_is: iurc can also use other acids, z.13. dicic acid or phosphoric acid, and;) the also acid salts, r.13. N: iti-iullll) istillit, Na- triumbi @ ulfate or primary \: itritiml) lic) sI) li; it, \ e'r \ t will end. 1) 1e acidic treatment liquid = becomes by painting, like pressing or cell door fugierc-: 1. possible-st completely removed and dir @ ürkst; ü? (i @ in a weakly alkaline Bath. that in addition to schu-achen alkalis, such as B. Natrittiilliic; irbuirtt, secondary natriuntpIios- phat. Sodium carbonate or mixtures thereof. Contains wetting agents, treated. As a wetting agent come odorless soaps, Turkish red TO Feitsäurekondensprodukte, sulfur = acid esters of fatty alcohols and others i.ibliciiv N, tzniittcl either alone or in a mixture with one another. lle 1) t'1 (hr Akah " 11e17 Behalldlung e h n m l1- 11; 11: t`ll (Ic11 Teilli) craltll "ell 11egL`I @ G \\"i.'Clilll<il? Lg between i: and 35. The finite alkaline liquid treated Ua; erial is good, zwccl: nl: il.ii @ a few times. ini: \\ as @ el "washed out, front loading water free. and dried in usual '''ice and gt '@ (' i @ encnfali_ geniahlcn. Liic Echan (llung finite weakly acidic kehtli and also you treatment with acim-achalkalic. Containing usefulness Flils-i ;; kuhcn Lum as required two- or repeated several times '' -ground. 1: 1i; ' to achieve (forth deodorization noi- u Ease of acid or alkali and \ etzniiti (`l is: depending on the type of to ver \\ - cndrndr: -: hischr and from the rest : \ 1'i @ elt; l? Edlll @ :: ag (`ll. 111l in general , e n becomes e111 Lu_ati from jc 0.2 1) 1s lt) () Sällre or alkali and \ ctznunrl are enough to cimvandfrcie Prc! - dllkle obtain. example i Crne mental people who are purposefully full of the 1: 11: s @t \ ci (ien buircit; illd. \ Verden Cttl`: 1 = Stull- de :; tlt:; e r constant l # Utllren in vain «-äli- i'l; ge :: 1_ümu? g. chic about 0.2 acetic his 0.31B sau :: u: iili: ili. grliocllt. After removing the by Ailwe, sen (or Z_elitliu- hiüml., cit wied; (v «km; ibig riuc noclnn: tlige h @ icili @ cüandiu 1: g with acidic liquid underneath Kuhrun vorgunvininelt. leas% i) 11 (her liquid Hi; ürlrcitc'Material becomes ill with a solution, sCIM-: Ichc #, alkali titl (1 tlit; l Contains 0.25% wetting agent, treated at temperatures between 15 and 35 °, advantageously with stirring, for 1 to 2 hours. After removing the treatment liquid, 7.B. by pressing, the alkaline treatment is expediently repeated once more. The residue is washed out a few times with water and dried in the usual way. A fish odorless and tasteless, completely water-insoluble feed is obtained, which has an extremely high nutritional value, since the inferior nutritional value components of the protein material are largely or even completely removed. The feed can be used on its own or in a mixture with other feeds.

The acidic treatment liquids can e.g. B. by evaporation or failures of the ingredients can be made usable. The evaporation resp. Precipitation product can e.g. B. can be used as fertilizer.

Claims (3)

PATENT CLAIMS: i. Process for the production of odorless Feed from fish by successive treatment in warm mildly acidic Baths and weakly alkaline baths, characterized in that for the purpose of achieving odorless feed fish, especially low-oil fish, which are expediently of Entrails were freed, subjected to cooking in weakly acidic baths and after removing the acidic treatment liquid in weakly alkaline, Baths containing wetting agents at normal or moderately elevated temperatures, z. B. between i5 and 35 °, post-treated and that of the alkaline B-treatment liquid exempted products in the usual way, e.g. B. processed by drying and grinding. 2. The method according to claim i, characterized in that one for acid treatment o, 2- to i o`o acid solutions, e.g. B. 0.2 to 0.3 o / o acetic acid, and alkaline Treatment of o, 2- to i o'oige alkali solutions, which are expediently about 0.250; o network and Containing penetrants. 3. The method according to claims i and 2, characterized in that the acidic and / or the alkaline treatment several times is carried out. ¢. Method according to claims i to 3, characterized in that that the substances that have passed into the acidic treatment liquid are replaced by suitable ones Measures, e.g. B. evaporation or precipitation, can be made useful.