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A thin layer chromatographic comparison of raw and soluble starch hydrolysis patterns of some alpha-amylases from Bacillus sp isolated in Serbia

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2014
1570.pdf (325.4Kb)
Authors
Gligorijević, Nikola
Stevanovic, Nikola
Lončar, Nikola
Baošić, Rada
Vujčić, Zoran
Božić, Nataša
Article (Published version)
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Abstract
Several natural isolates of Bacillus strains namely 5B, 12B, 16B, 18 and 24B were grown at two different temperatures in submerged fermentation for the production of raw-starch-digesting alpha-amylases. All strains except Bacillus sp. 18 produced more alpha-amylase at 37 degrees C. The hydrolysis of raw cornstarch followed the same pattern. Efficient hydrolysis was obtained with alpha-amylases from Bacillus sp. 5B, 12B, 16B and 24B grown at 37 degrees C and Bacillus sp. 18 grown at 50 degrees C. Zymography after isoelectric focusing showed that alpha-amylases were produced in multiple forms, from 2 to 6, depending on the strain when they were growing at 37 degrees C, while growth at 50 degrees C induced only 1 or 2 isoforms. Thin layer chromatography (TLC) analysis of the hydrolysis products of raw corn and soluble starch by alpha-amylases revealed the production of various mixtures of oligosaccharides. In most cases, G3 was the most dominant product from soluble starch while G2, G3 an...d G5 were the main products of raw starch hydrolysis. This indicates that the obtained alpha-amylases could be used for starch liquidification or short-chain-oligosaccharide formation, depending on the type of starch (raw or soluble) used for the hydrolysis.

Keywords:
bacterial amylase / raw starch digestion / TLC / zymogram
Source:
Journal of the Serbian Chemical Society, 2014, 79, 4, 411-420
Publisher:
  • Serbian Chemical Soc, Belgrade
Funding / projects:
  • Production, purification and characterization of enzymes and small molecules and their application as soluble or immobilized in food biotechnology, biofuels production and environmental protection (RS-172048)
  • ICGEB Research Grant [CRP/YUG11-02]

DOI: 10.2298/JSC130909155G

ISSN: 0352-5139

WoS: 000335424700003

Scopus: 2-s2.0-84899487807
[ Google Scholar ]
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2
URI
https://cer.ihtm.bg.ac.rs/handle/123456789/1572
Collections
  • Radovi istraživača / Researchers' publications
Institution/Community
IHTM
TY  - JOUR
AU  - Gligorijević, Nikola
AU  - Stevanovic, Nikola
AU  - Lončar, Nikola
AU  - Baošić, Rada
AU  - Vujčić, Zoran
AU  - Božić, Nataša
PY  - 2014
UR  - https://cer.ihtm.bg.ac.rs/handle/123456789/1572
AB  - Several natural isolates of Bacillus strains namely 5B, 12B, 16B, 18 and 24B were grown at two different temperatures in submerged fermentation for the production of raw-starch-digesting alpha-amylases. All strains except Bacillus sp. 18 produced more alpha-amylase at 37 degrees C. The hydrolysis of raw cornstarch followed the same pattern. Efficient hydrolysis was obtained with alpha-amylases from Bacillus sp. 5B, 12B, 16B and 24B grown at 37 degrees C and Bacillus sp. 18 grown at 50 degrees C. Zymography after isoelectric focusing showed that alpha-amylases were produced in multiple forms, from 2 to 6, depending on the strain when they were growing at 37 degrees C, while growth at 50 degrees C induced only 1 or 2 isoforms. Thin layer chromatography (TLC) analysis of the hydrolysis products of raw corn and soluble starch by alpha-amylases revealed the production of various mixtures of oligosaccharides. In most cases, G3 was the most dominant product from soluble starch while G2, G3 and G5 were the main products of raw starch hydrolysis. This indicates that the obtained alpha-amylases could be used for starch liquidification or short-chain-oligosaccharide formation, depending on the type of starch (raw or soluble) used for the hydrolysis.
PB  - Serbian Chemical Soc, Belgrade
T2  - Journal of the Serbian Chemical Society
T1  - A thin layer chromatographic comparison of raw and soluble starch hydrolysis patterns of some alpha-amylases from Bacillus sp isolated in Serbia
VL  - 79
IS  - 4
SP  - 411
EP  - 420
DO  - 10.2298/JSC130909155G
ER  - 
@article{
author = "Gligorijević, Nikola and Stevanovic, Nikola and Lončar, Nikola and Baošić, Rada and Vujčić, Zoran and Božić, Nataša",
year = "2014",
abstract = "Several natural isolates of Bacillus strains namely 5B, 12B, 16B, 18 and 24B were grown at two different temperatures in submerged fermentation for the production of raw-starch-digesting alpha-amylases. All strains except Bacillus sp. 18 produced more alpha-amylase at 37 degrees C. The hydrolysis of raw cornstarch followed the same pattern. Efficient hydrolysis was obtained with alpha-amylases from Bacillus sp. 5B, 12B, 16B and 24B grown at 37 degrees C and Bacillus sp. 18 grown at 50 degrees C. Zymography after isoelectric focusing showed that alpha-amylases were produced in multiple forms, from 2 to 6, depending on the strain when they were growing at 37 degrees C, while growth at 50 degrees C induced only 1 or 2 isoforms. Thin layer chromatography (TLC) analysis of the hydrolysis products of raw corn and soluble starch by alpha-amylases revealed the production of various mixtures of oligosaccharides. In most cases, G3 was the most dominant product from soluble starch while G2, G3 and G5 were the main products of raw starch hydrolysis. This indicates that the obtained alpha-amylases could be used for starch liquidification or short-chain-oligosaccharide formation, depending on the type of starch (raw or soluble) used for the hydrolysis.",
publisher = "Serbian Chemical Soc, Belgrade",
journal = "Journal of the Serbian Chemical Society",
title = "A thin layer chromatographic comparison of raw and soluble starch hydrolysis patterns of some alpha-amylases from Bacillus sp isolated in Serbia",
volume = "79",
number = "4",
pages = "411-420",
doi = "10.2298/JSC130909155G"
}
Gligorijević, N., Stevanovic, N., Lončar, N., Baošić, R., Vujčić, Z.,& Božić, N.. (2014). A thin layer chromatographic comparison of raw and soluble starch hydrolysis patterns of some alpha-amylases from Bacillus sp isolated in Serbia. in Journal of the Serbian Chemical Society
Serbian Chemical Soc, Belgrade., 79(4), 411-420.
https://doi.org/10.2298/JSC130909155G
Gligorijević N, Stevanovic N, Lončar N, Baošić R, Vujčić Z, Božić N. A thin layer chromatographic comparison of raw and soluble starch hydrolysis patterns of some alpha-amylases from Bacillus sp isolated in Serbia. in Journal of the Serbian Chemical Society. 2014;79(4):411-420.
doi:10.2298/JSC130909155G .
Gligorijević, Nikola, Stevanovic, Nikola, Lončar, Nikola, Baošić, Rada, Vujčić, Zoran, Božić, Nataša, "A thin layer chromatographic comparison of raw and soluble starch hydrolysis patterns of some alpha-amylases from Bacillus sp isolated in Serbia" in Journal of the Serbian Chemical Society, 79, no. 4 (2014):411-420,
https://doi.org/10.2298/JSC130909155G . .

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