1. Abdel-Fattah, Y.R., Soliman, N.A., El-Toukhy, N.M., El- Gendi, H. and Ahmed, R.S. 2012. Production, purification, and characterization of thermostable alpha-amylase produced by Bacillus licheniformis isolate AI20. – J. Chem. 13: 1-11.
3. Afrisham, S., Badoei-Dalfard, A., Namaki-Shoushtari, A. and Karami, Z. 2016. Characterization of a thermostable, CaCl2-activated and raw-starch hydrolyzing alpha-amylase from Bacillus licheniformis AT70: Production under solid statef-ermentation. – J. Mol. Catal. B: Enzym. 132: 98-106.
4. Ahmadi, A., Ghobadi, S., Khajeh, K., Nomanpour, B. and Badoei-Dalfard, A. 2010. Purification of α-Amylase from Bacillus sp. GHA1 and its partial characterization. – J. Iran Chem. Soc. 7: 432-440.
5. Aiyer, P.D. 2005. Effect of C: N ratio on alpha-amylase production by Bacillus licheniformis SPT 27. – African J. Biotech. 3: 519-522.
6. Amoozegar, M.A., Samareh-Abolhasani, B., Shafiei, M., Didari, M. and Hamedi, J. 2013. Production of halothermotolerant alpha-amylase from a moderately halophilic bacterium, Nesterenkonia Strain F. – Progress in Biological Sciences. 2: 85-97.
7. Antranikian, G. and Egorova, K. 2007. Extremophiles, a unique resource of biocatalysts for industrial biotechnology. Extremophiles. – ASM Press, Washington 361-406.
8. Asgher, M., Asad, M.J., Rahman, S.U. and Legge, R.L. 2007. A thermostable α-amylase from a moderately thermophilic Bacillus subtilis strain for starch processing. – J. Food Eng. 79: 950-955.
9. Asoodeh, A., Alemi, A., Heydari, A. and Akbari, J. 2013. Purification and biochemical characterization of an acidophilic amylase from a newly isolated Bacillus sp. DR90. – Extremophiles 17: 339-348.
10. Aullybux, A.A. and Puchooa, D. 2013. Alpha-amylase production on low-cost substrates by Naxibacter sp. isolated from Mauritian soils. – Br. Microbiol. Res. J. 3: 478-491.
11. Azadian, F., Badoei-Dalfard, A., Namaki-Shoushtari, A. and Hassanshahian, M. 2016. Purification and biochemical properties of a thermostable, haloalkaline cellulase from Bacillus licheniformis AMF-07 and its application for hydrolysis of different cellulosic substrates to bioethanol prod-uction. – Mol. Bio. Res. Comm. 5: 143-155.
12. Babu, K.R. and Satyanarayana, T. 1995. Alpha-amylase production by thermophilic Bacillus coagulans in solid state fermentation. – Process Biochem. 30: 305-309.
13. Badoei-Dalfard, A., Karami, Z., Ramezani-Pour, N. 2016. Bench scale production of nicotinic acid using a newly isolated Stenotrophomonas maltophilia AC-21 producing highly-inducible and versatile nitrilase. – J. Mol. Catal. B: Enzym. 133: 552-559.
14. Badoei-Dalfard, A., Karami, Z., Ramezani-pour, N. 2016. Production and characterization of a nitrilase from Pseudomonas aeruginosa RZ44 and its potential for nitrile biotransformation. – Iranian J. Biotechnol. 14: 142-153.
15. Baysal, Z., Uyar, F. and Aytekin, Ç. 2003. Solid state fermentation for production of alpha-amylase by a thermotolerant Bacillus subtilis from hot-spring water. – Process Biochem. 38: 1665-1668.
16. Bernfeld, P. 1955. Amylases, α and β. – Methods Enzy-mol. 1: 149-158.
17. Bouzas, T.M., Barros-Velázquez, J. and Gonzalez Villa, T. 2006. Industrial applications of hyperthermophilic enzymes: a review. – Protein Pept. Lett. 13: 645-651.
18. Bozic, N., Ruiz, J., Santin, J., and Vujcic, Z. 2011. Optimization of the growth and alpha-amylase production of Bacillus subtilis IP 5832 in shake flask and laboratory fermenter batch cultures. – J. Serb. Chem. Soc. 76: 965-972.
19. Burhan, A., Nisa, U., Gökhan, C., Ömer, C., Ashabil, A., and Osman, G. 2003. Enzymatic properties of a novel thermostable, thermophilic, alkaline and chel-ator resistant amylase from an alkaliphilic Bacillus sp. isolate ANT-6. – Process Biochem. 38: 1397-1403.
20. Chandra, M.S., Mallaiah, K.V., Sreenivasulu, P. and Choi, Y.L. 2010. Purification and characterization of highly thermostable alpha-amylase from thermophilic Alicyclobacillus acidocaldarius. Biotechnol. – Bioprocess Eng. 15: 435-440.
21. Fooladi, J. and Sajjadian, A. 2010. Screening the thermophilic and hyperthermophilic bacterial popu-lation of three Iranian hot-springs to detect the therm-ostable alpha-amylase producing strain. – Iran J. Med. Microbiol. 2: 46-50.
22. Gangadharan, D., Sivaramakrishnan, S., Nampoothiri, K.M. and Pandey, A. 2006. Solid culturing of Baci-llus amyloliquefaciens for alpha-amylase production. – Food Technol. Biotechnol. 44: 269-274.
23. Haki, G.D. and Rakshit, S.K. 2003. Developments in industrially important thermostable enzymes: a revi-ew. – Bioresour. Technol. 89: 17-34.
24. Karakaş, B., İnan, M. and Certel, M. 2010. Expression and characterization of Bacillus subtilis PY22 alpha-amylase in Pichia pastoris. – J. Mol. Catal. B: Enzym. 64: 129-134.
25. Kolcuoğlu, Y., Colak, A., Faiz, O. and Belduz, A.O. 2010. Cloning, expression and characterization of highly thermo-and pH-stable maltogenic amylase from a thermophilic bacterium Geobacillus caldoxyl-osilyticus TK4. – Process Biochem. 45: 821-828.
26. Kristjanson K.J. 1989. Thermophilic organisms as sour-ce of thermostable enzymes. – Trends Biotechnol. 7: 49-53.
27. Mahdavi, A., Hassan Sajedi, R., Rassa, M. and Jafarian, V. 2010. Characterization of an alpha-amylase with broad temperature activity from an acid-neutralizing Bacillus cereus strain. – Iran J. Biotechnol. 8: 103-111.
28. Miller, G.L. 1959. Use of dinitrosalicylic acid reagent for determination of reducing sugar. – Anal. Chem. 31: 426-428.
29. Oziengbe, E.O. and Onilude, A.A. 2012. Production of a thermostable alpha-amylase and its assay using Bacillus licheniformis isolated from excavated land sites in Ibadan, Nigeria. – Bayero Journal of Pure and Applied Sciences 5: 132-138.
30. Pandey, A., Soccol, C.R., Rodriguez-Leon, J.A. and Nigam, P. 2001. Solid state fermentation in biotec-hnolog'y. – J. Microbiol. Methods 34: 405-423.
31. Prakash, B., Vidyasagar, M., Madhukumar, M.S., Muralikrishna, G. and Sreeramulu, K. 2009. Produ-ction, purification, and characterization of two extremely halotolerant, thermostable, and alkali-stable apha-amylases from Chromohalobacter sp. TVSP 101. – Process Biochem. 44: 210-215.
32. Ramachandran, S., Patel, A.K., Nampoothiri, K.M., Francis, F., Nagy, V., Szakacs, G. and Pandey, A. 2004. Coconut oil cake-a potential raw material for the production of alpha-amylase. – Bioresour. Tech-nol. 93: 169-174.
33. Ramezani-Pour, N., Badoei-Dalfard, A., Namaki-Shou-shtari, A. and Karami, Z. 2015. Nitrile-metabolizing potential of Bacillus cereus strain FA12; Nitrilase production, purification, and characterization. – Bioc-atal. Biotransform. 33: 156-166
34. Samie, N., Noghabi, K.A., Gharegozloo, Z., Zahiri, H.S., Ahmadian, G., Sharafi, H., Behrozi, R. and Vali, H. 2012. Psychrophilic alpha-amylase from Aeromonas veronii NS07 isolated from farm soils. – Process Bi-ochem. 47: 1381-1387.
35. Sen, S.K., Raut, S., Satpathy, S., Rout, P.R., Bandyopadhyay, B. and Mohapatra, P.K.D. 2014. Characterizing novel thermophilic amylase producing bacteria from Taptapani hot spring, Odisha, India. – Jundishapur. J. Microbiol. 7: 1-7.
36. Shafiei, M., Ziaee, A.A. and Amoozegar, M.A. 2012. Purification and characterization of a halophilic alpha-amylase with increased activity in the presence of organic solvents from the moderately halophilic Nesterenkonia sp. strain F. – Extremophiles 16: 627-635.
37. Sneath, P.H.A., Mair, N.S., Sharpe, M.E. and Holt, J.G. 1986. Bergy’s manual of systematic bacteriology, Vol. 2. – William and Wilkins, Baltimore, USA.
38. Sodhi, H.K., Sharma, K., Gupta, J.K. and Soni, S.K. 2005. Production of a thermostable alpha-amylase from Bacillus sp. PS-7 by solid state fermentation and its synergistic use in the hydrolysis of malt starch for alcohol production. – Process Biochem. 40: 525-534.
39. Souza, P.M.D. 2010. Application of microbial alpha-amylase in industry-a review. – Braz. J. Microbiol. 41: 850-861.
40. Tamura, K., Dudley, J., Nei, M. and Kumar, S. 2007. MEGA4: Molecular evolutionary genetics analysis (MEGA) software version 4.0. – Mol. Biol. Evol. 24: 1596-1599.
41. Zeikus, J.G., Vieille, C. and Savchenko, A. 1998. Thermozymes: biotechnology and structure–function relationships. – Extremophiles 2: 179-183.