Wyniki wyszukiwania

1

Application of response surface methodology in medium optimization for protease production by the new strain of Serratia marcescens SB08

100%

Venil C. K., Lakshmanaperumalsamy P.

Polish Journal of Microbiology

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2009

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tom 58

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nr 2

117-124

For production of protease by a new strain, Serratia marcescens SB08, optimization of the fermentation medium and environmental conditions, were carried out by applying factorial design and response surface methodology. The results of factorial design showed that pH, agitation, incubation time and yeast extract were the key factors affecting protease production. The optimal cultural conditions for protease production obtained with response surface methodology were pH 6.0, agitation 100 rpm, incubation time 51.0 h and yeast extract 3.0 g/l. This model was also validated by repeating the experiments under the optimized conditions, which resulted in the maximum protease production of 281.23 U/ml (Predicted response 275.66 U/ml), thus proving the validity of the model. Unexplored Serratia marcescens SB08 strain isolated from enteric gut of sulphur butterfly (Kricogonia lyside) was taken up for this study. This study demonstrates the ability of the new strain, Serratia marcescens SB08, for protease production and also that smaller and less time consuming statistical experimental designs are adequate for the optimization of fermentation processes for maximum protease production.

2

Isolation and characterisation of new Planococcus sp. strain able for aromatic hydrocarbons degradation

86%

Labuzek S., Hupert-Kocurek K. T., Skurnik M.

Acta Microbiologica Polonica

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2003

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tom 52

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nr 4

3

Isolation and identification of a new fungal strain for amylase biosynthesis

72%

Bakri Y., Magali M., Thonart P.

Polish Journal of Microbiology

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2009

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tom 58

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nr 3

269-273

Fungi are well known for their ability to excrete enzymes into the environment. The fungal isolate FSS60 was the best amylase producer among one hundred and thirty-six isolates obtained from Syrian soils and tested for amylase production. According to the sequence of the internal transcribed spacer (ITS) rDNA gene, the isolate was identified as Aspergillus flavus. Optimal initial pH for amylase production was found to be 9.0. The enzyme was optimally active at 50°C and pH 5.0.

4

New strains of filamentous fungi isolated from construction materials

72%

Kobialka N., Mularczyk M., Kosiorowska K., Pilarska K. M., Laba W., Piegza M., Robak M.

Electronic Journal of Polish Agricultural Universities. Series: Biotechnology

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2019

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tom 22

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nr 1

5

Charakterystyka rodow maku niskomorfinowego zgloszonych do badan rejestrowych w COBORU w 1996 roku

72%

Liersch J., Szymanowska E., Krzymanski J.

Rośliny Oleiste - Oilseed Crops

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1997

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tom 18

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nr 1

169-170

6

Strains of Paramecium quadecaurelia from Namibia, Africa; genetic and molecular studies

58%

Przybos E., Hori M., Fokin S. I.

Acta Protozoologica

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2003

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tom 42

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nr 4

7

Okreslenie reakcji nowych rodow i odmian pszenicy jarej na wybrane czynniki agrotechniczne

44%

Sulek A.

Biuletyn Instytutu Hodowli i Aklimatyzacji Roślin

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2004

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nr 231

139-145