THE GROWTH OF THERMOMYCES LANUGINOSUS (TSIKL.) ISOLATES FROM GARDEN COMPOSTS AND COFFEE BEANS ON CELLULOSE SUBSTRATES AND XYLAN AT VARIOUS WATER ACTIVITY
THE GROWTH OF THERMOMYCES LANUGINOSUS (TSIKL.) ISOLATES FROM GARDEN COMPOSTS AND COFFEE BEANS ON CELLULOSE SUBSTRATES AND XYLAN AT VARIOUS WATER ACTIVITY
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DOI：
10.2478/v10265-012-0026-4
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发表时间：
2012-01-01
影响因子：
1.5
通讯作者：
Janda, Katarzyna
中科院分区：
文献类型：
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作者：
Markowska-Szczupak, Agata;Ulfig, Krzysztof;Janda, Katarzyna
研究了水分活度（0.850、0.900、0.950、0.995和0.999 a（w））对赤眼蜂生长的影响。在含有不同纤维素底物（结晶纤维素、羧甲基纤维素- CMC、滤纸和锯木屑）和木聚糖的固体培养基上，比较了来自咖啡豆和花园堆肥的菌株的生长。所有分离株在a（w）< 0.950的培养基上不生长。在a（w）> 0.950的培养基上，仅在木聚糖和CMC上观察到水解区。最高的日生长率和水解区率大多在0.995 a（w），最低值在0.950 a（w）。在0.950 a（w）下，咖啡豆分离物的CMC水解系数比木聚糖高1.7倍。真菌生长（FG）系数数据表明，咖啡豆分离物能够利用CMC和结晶纤维素生长，并在0.999 a（w）时获得最高生长速率。随后，堆肥分离物能够在所有基质上生长，但在CMC上获得最高的生长速率在0.950和0.999 a（w）。因此，咖啡豆和堆肥提供具有在0.950-0.999 a（w）范围内的各种生长和水解区速率的T lanaprosus分离物。
The study was to determine the effect of water activity (0.850; 0.900; 0.950; 0.995; and 0.999 a(w)) on the growth of T. lanuginosus on solid media containing different cellulose substrates (crystalline cellulose, carboxymethyl cellulose - CMC, filter paper, and sawdust) and xylan. The growth of isolates from coffee beans and garden composts were compared. All isolates did not grow on media with a(w) < 0.950. On media with a(w) > 0.950, the hydrolysis zones were only observed on xylan and CMC. The highest daily growth and hydrolysis zone rates were mostly obtained at 0.995 a(w) and the lowest values were observed at 0.950 a(w). The coffee beans isolates at 0.950 a(w) had the CMC hydrolysis coefficient 1.7-times higher than that for xylan. The fungal growth (FG) coefficient data indicate that the coffee beans isolates were able to utilize CMC and crystalline cellulose for growth and the highest growth rate was obtained at 0.999 a(w). Subsequently, the compost isolates were able to grow on all substrates but the highest growth rate was obtained on CMC at 0.950 and 0.999 a(w). Thus, coffee beans and composts provide T lanuginosus isolates with various growth and hydrolytic zone rates in the range of 0.950-0.999 a(w).