- Tytuł:
-
Cellulases and xylanase production by x-ray-induced mutants of Trichoderma viride M4-4
Wytwarzanie celulaz i ksylanazy przez mutanty Trichoderma viride M4-4 indukowane promieniami Roentgena - Autorzy:
-
Bien, M.
Witkowska, D. - Powiązania:
- https://bibliotekanauki.pl/articles/1372369.pdf
- Data publikacji:
- 1994
- Wydawca:
- Instytut Rozrodu Zwierząt i Badań Żywności Polskiej Akademii Nauk w Olsztynie
- Tematy:
-
hodowla mikroorganizmow
Trichoderma viride M4-4
mikrobiologia zywnosci
indukowanie mutacji
celulazy
enzymy
ksylanazy
biotechnologia - Opis:
- Five new mutants were obtained by a two-stage (UV + X-ray) mutation of T. viride C-1. The selected mutants were tested for producticn of cellulases and xylanase in submerged cultivation in shake flasks in a Saunders medium containing 2% microcrystalline cellulose, 2% dry sugar beet pulp, 0.5% yeast extract and 0.5% wheat germs. Activities in biosynthesis of cellulases and xylanase were assayed at various time intervals in culture filtrates. The mu tants obtained after two-stage mutation (UV + X) were characterized by considerably higher activity in biosynthesis of extracellular cellulases than the natural strain, but similar or lower than the UV-mutant T. viride M4-4. Extracellula '. ß-xylanase activity of some examined mutants was higher (40 - 155% on average) in comparison to the natural strain T. viride C-1 as weil as to the UV-mutant T. v iride M4-4 strain.
- Źródło:
-
Polish Journal of Food and Nutrition Sciences; 1994, 03, 2; 15-24
1230-0322
2083-6007 - Pojawia się w:
- Polish Journal of Food and Nutrition Sciences
- Dostawca treści:
- Biblioteka Nauki
Artykuł