- Tytuł:
-
Skuteczność wybranych związków dezynfekcyjnych wobec przetrwalników Bacillus
Activity of selected compounds against spores of Bacillus - Autorzy:
-
Olesiak, P.
Stępniak, L. - Powiązania:
- https://bibliotekanauki.pl/articles/297164.pdf
- Data publikacji:
- 2012
- Wydawca:
- Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
- Tematy:
-
dezynfekcja
endospory
Bacillus subtilis
Bacillus mycoides
Bacillus cereus
disinfectants
endospores - Opis:
-
Badano wpływ trzech często stosowanych w antyseptyce i dezynfekcji związków: kwasu nadoctowego, nadtlenku wodoru w stężeniu 5 i 30% oraz aldehydu glutarowego na przetrwalniki bakterii. Kwas nadoctowy stanowił główny składnik preparatu komercyjnego pod nazwą Steridial P. Natomiast aldehyd glutarowy stosowano w postaci preparatu handlowego o nazwie Lysoformin 3000. Skuteczność dezynfektantów badano wobec przetrwalników bakterii z rodzaju Bacillus: B.subtilis, B.mycoides oraz B.cereus. Endospory, czyli przetrwalniki, są formami bakterii, które pozwalają im przeżyć skrajnie niekorzystne dla nich warunki, takie jak: suszę, wysoką temperaturę czy działanie środków dezynfekcyjnych. Zawdzięczają to odmiennej od komórek wegetatywnych budowie. Wykazano, że testowane związki są bardzo silnymi biocydami. Działanie sporobójcze wobec badanych szczepów obserwowano po trzydziestominutowej ekspozycji na każdy z testowanych związków.
The effect of three frequently used in antyseptic and disinfection of: peracetic acid, hydrogen peroxide at a concentration of 5 and 30%, and glutaraldehyde. Peracetic acid was the main ingredient Steridial P, in addition to acetic acid and hydrogen peroxide. Hydrogen peroxide in the form of 5% is much stronger than what we use hydrogen peroxide to antiseptic wounds in our homes. However, glutaraldehyde has performed under the trade name as Lysoformin 3000. Disinfecting measures are an especially important role in maintaining cleanliness in hospitals but also in our homes. Also are needed in the pharmaceutical and grocery industry. Thanks it did reduce the incidence of some diseases, and sometimes eliminate them. Disinfectants allow us to fight drug-resistant strains of bacteria, which occur in hospitals.The effectiveness of disinfectants affected by many factors. Their role in our lives is invaluable. Disinfectants were used against bacterial spores of the genus Bacillus: B.subtilis, B.mycoides and B.cereus. Bacillus-genus bacteria occur everywhere: in water, air and soil are transferred along with objects, and air movements on human hands. So it's easy to get infected. Endospores are forms of bacteria that allow them to survive extremely unfavorable to them, conditions such as drought, high temperatures or the action of disinfectants. Construction disputes differs significantly from the construction of cell vegetative. The most important part of sports is the cover phones, which represent up to 50% of the dry matter (d.m.) of the spore. It is the presence of these creations provides endosporom such "integrity". Guards are constructed primarily of proteins containing large amounts of cysteine. Endospores are forms very dehydrated, the water is only 15% of all cells. Compared with cell vegetative, spores have also about almost half proteins more and 75% carbohydrates less. They do not have beta-hydroxybutyrate, which is to 1/3 d.m. cells vegetative. In construction there are large quantities of endospores dipikolinic acid (DPA), associated mainly with calcium ions, but also other divalent elements. Complexes of Ca2+ - DPA may constitute up to 10% d.m. all disputes. DPA is the most frequently isolated from the mantle. This compound is not present in vegetative cells and spores is responsible for resistance to UV radiation from 5 to 50 times greater (depending on the strain) than vegetative forms. The lower sensitivity to ultraviolet radiation also correspond to protein family SASP (small amidesoluble proteins). They change the structure of DNA-stiffen and straighten - through the saturation of these biomolecules is on the outer side of the helix. These proteins are present only in disputes, and are destroyed during germination. Spore cell wall is much thicker, otherwise refracts light and is composed of many layers, so that is poorly permeable. It was shown that the tested compounds are very potent biocides. Sporicidial action against all tested strains was observed after a thirty-minute exposure to each of the tested. - Źródło:
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Inżynieria i Ochrona Środowiska; 2012, 15, 1; 41-50
1505-3695
2391-7253 - Pojawia się w:
- Inżynieria i Ochrona Środowiska
- Dostawca treści:
- Biblioteka Nauki
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