PL51143B1 - - Google Patents
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- Publication number
- PL51143B1 PL51143B1 PL103935A PL10393564A PL51143B1 PL 51143 B1 PL51143 B1 PL 51143B1 PL 103935 A PL103935 A PL 103935A PL 10393564 A PL10393564 A PL 10393564A PL 51143 B1 PL51143 B1 PL 51143B1
- Authority
- PL
- Poland
- Prior art keywords
- hydrolyzate
- yeast
- molasses
- beech wood
- hydrolysis
- Prior art date
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- 238000000034 method Methods 0.000 claims description 7
- 235000010099 Fagus sylvatica Nutrition 0.000 claims description 5
- 240000004808 Saccharomyces cerevisiae Species 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- 235000013379 molasses Nutrition 0.000 claims description 3
- 239000002023 wood Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 240000000731 Fagus sylvatica Species 0.000 claims 1
- 229920002678 cellulose Polymers 0.000 claims 1
- 239000001913 cellulose Substances 0.000 claims 1
- 239000004459 forage Substances 0.000 claims 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims 1
- 241001070947 Fagus Species 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 229910052500 inorganic mineral Inorganic materials 0.000 description 4
- 239000011707 mineral Substances 0.000 description 4
- 230000007062 hydrolysis Effects 0.000 description 3
- 238000006460 hydrolysis reaction Methods 0.000 description 3
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 159000000003 magnesium salts Chemical class 0.000 description 2
- 239000011591 potassium Substances 0.000 description 2
- 229910052700 potassium Inorganic materials 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- 229920001131 Pulp (paper) Polymers 0.000 description 1
- CZMRCDWAGMRECN-UGDNZRGBSA-N Sucrose Chemical compound O[C@H]1[C@H](O)[C@@H](CO)O[C@@]1(CO)O[C@@H]1[C@H](O)[C@@H](O)[C@H](O)[C@@H](CO)O1 CZMRCDWAGMRECN-UGDNZRGBSA-N 0.000 description 1
- 229930006000 Sucrose Natural products 0.000 description 1
- 238000005903 acid hydrolysis reaction Methods 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 description 1
- 229910052921 ammonium sulfate Inorganic materials 0.000 description 1
- 235000011130 ammonium sulphate Nutrition 0.000 description 1
- 239000001166 ammonium sulphate Substances 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- YYRMJZQKEFZXMX-UHFFFAOYSA-N calcium;phosphoric acid Chemical compound [Ca+2].OP(O)(O)=O.OP(O)(O)=O YYRMJZQKEFZXMX-UHFFFAOYSA-N 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 235000005985 organic acids Nutrition 0.000 description 1
- 125000001477 organic nitrogen group Chemical group 0.000 description 1
- 150000003017 phosphorus Chemical class 0.000 description 1
- 235000007686 potassium Nutrition 0.000 description 1
- 239000005720 sucrose Substances 0.000 description 1
- 239000002426 superphosphate Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Description
Opublikowano: 26.IV.1966 51143 KI. 6a, 17/63 MKP C 12 c ^n UKD tl&UOTEKA Twórca wynalazku: dr Helena Karczewska Wlasciciel patentu: Instytut Badawczy Lesnictwa, Warszawa (Polska) Sposób przerobu na drozdze pastewne wstepnego hydrolizatu drewna bukowego Przy produkcji celulozy z drewna bukowego, w procesie wstepnej hydrolizy kwasnej, za pomoca rozcienczonego kwasu siarkowego, otrzymuje sie hydrolizat, który w mysl danych literaturowych nadaje sie do zdrozdzowania. W procesie wstep¬ nej hydrolizy drewna bukowego za pomoca wody, w podwyzszonej temperaturze, powstaja co praw¬ da slabe kwasy organiczne, spelniajace role ka¬ talizatora procesu hydrolizy, podobnie jak kwasy mineralne w przypadku wstepnej hydrolizy kwas¬ nej, jednak otrzymany hydrolizat nie nadaje sie do zdrozdzowania. Zawiera on zawiesine, która ha¬ muje rozmnazanie sie drozdzy i powoduje zaty¬ kanie sie dysz separatorów, a jednoczesnie jest zbyt ubogi w skladniki mineralne niezbedne dla rozwoju drozdzy. Próbowano uzupelnic niedobór skladników mineralnych przez dodatek siarczanu amonowego, wody amoniakalnej oraz soli potasu i magnezu. Z drugiej strony próbowano wytracic koloidalna zawiesine uniemozliwiajaca rozwój drozdzy przez dodatek soli fosforowych, przewaz¬ nie w postaci superfosfatu. Proces ten klopotliwy i nie dajacy zadawalajacych wyników nie znalazl jednak praktycznego zastosowania.Sposób wedlug wynalazku umozliwia calkowite usuniecie zawiesiny ze wstepnego, wodnego hy- 10 15 2 drolizatu bukowego, wzbogacajac go jednoczesnie w azot organiczny, sole potasu i magnezu oraz w inne skladniki mineralne a takze dodatkowo w sacharoze. Polega on na dodaniu do wstepnego hydrolizatu wodnego, melasu w ilosci 1—2% wa¬ gowych zakwaszeniu go, np. kwasem siarkowym do pH okolo 4 i zagotowaniu. Nastepuje wtedy skoagulowanie koloidów zawartych w melasie, które porywajac ze soba zawiesiny hydrolizatu równiez o innym charakterze opadaja na dno.Odciagniety z nad osadu calkowicie sklarowany roztwór cukrów prostych, poddaje sie w znany sposób zdrozdzowaniu drozdzami pastewnymi. PLPublished: April 26, 1966 51143 IC. 6a, 17/63 MKP C 12 c ^ n UKD TL & UOTEKA Inventor: Dr. Helena Karczewska Patent owner: Forest Research Institute, Warsaw (Poland) Process of beech wood pre-hydrolyzate processing into fodder yeast In the production of beech wood pulp, in the process of preliminary hydrolysis acid, with dilute sulfuric acid, a hydrolyzate is obtained which, according to the literature data, is suitable for spitting. In the process of preliminary hydrolysis of beech wood with water, at an elevated temperature, weak organic acids are formed, which act as a catalyst for the hydrolysis process, similarly to mineral acids in the case of preliminary acid hydrolysis, but the obtained hydrolyzate is not suitable for to betraying. It contains a suspension which inhibits the multiplication of yeast and causes clogging of the separator nozzles, while at the same time being too poor in minerals necessary for the development of yeast. Attempts were made to supplement the deficiency of minerals by adding ammonium sulphate, ammonia water and potassium and magnesium salts. On the other hand, attempts have been made to destroy the colloidal yeast-preventing suspension by the addition of phosphorus salts, mostly in the form of superphosphate. This process, which is troublesome and does not give satisfactory results, has not, however, found practical application. The method according to the invention makes it possible to completely remove the suspension from the initial, aqueous beech hydrosat, while simultaneously enriching it with organic nitrogen, potassium and magnesium salts and other mineral components and also additionally in sucrose. It consists in adding molasses to the initial aqueous hydrolyzate in the amount of 1-2% by weight, acidifying it, eg with sulfuric acid, to a pH of about 4, and boiling it. Then, the colloids contained in the molasses coagulate, which, by entraining the suspensions of the hydrolyzate with them, also fall to the bottom of a different nature. PL
Claims (1)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| PL51143B1 true PL51143B1 (en) | 1966-02-25 |
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