FIBROLYTIC ACTIVITY OF PODAXIS PISTILLARIS FUNGUS IN SUBMERGED CULTURE
Podaxis pistillaris is a fungus commonly found in most desert areas worldwide. The oval shaped peridium, the rigid woody stipe, plus a 10-15 μm spore size stand out among its morphological features. Even though this fungus is used for human consumption and for several traditional remedies, a lack of...
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| Autores principales: | , , , , , |
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| 格式: | Online |
| 語言: | eng |
| 出版: |
Universidad de Sonora
2019
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| 在線閱讀: | https://biotecnia.unison.mx/index.php/biotecnia/article/view/874 |
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| 總結: | Podaxis pistillaris is a fungus commonly found in most desert areas worldwide. The oval shaped peridium, the rigid woody stipe, plus a 10-15 μm spore size stand out among its morphological features. Even though this fungus is used for human consumption and for several traditional remedies, a lack of knowledge regarding its fibrolytic enzymatic system still prevails. This fungus was collected from the central region of the Sonoran desert (29° 07.23´ 97” LN and 110° 53.58´ 02” LW, 238 masl). In order to study its enzymatic system on common fibers, P. pistillaris was grown in a specific submerged culture in order to determine total cellulases, xylanases and laccases. The maximum cellulolytic (501.7 U·mg-1), as well as xylanolytic (157.8 U·mg-1) activities, were detected after 18 cultivation days, whereas the highest laccase specific activity (179.6 U·mg-1) was registered after 15 days at 40° C. The thermostability of total cellulases, xylanases and laccases was found within temperatures ranging from 40 to 60° C. The present study represents the first report of P. pistillaris fibrolytic activity in submerged culture. |
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