Applications of Chemical Factors in Steroid Bioconversion

Article Preview

Abstract:

Microbial conversion is a key process in the biosynthetic routes of steroid medicine.The whole process of bioconversion includes two essential steps: (1) enzymatic reaction step where the enzyme-catalyzed substrate transformation takes place inside the cells, and (2) diffusion step that includes the diffusion of substrate molecules from the surface of solid substrate particles into bulk media (i.e., the solubilization of solid substrate), the diffusion of solubilized substrate molecules from bulk media into cells, and the diffusion of formed product molecules from inside cells into bulk media. In this review, the applications of three chemical factors (growth regulator,surfactant and cyclodextrin), and their effects on steroid microbial enzymatic conversion were extensively discussed, which provides insights into the development of novel approaches to cost-effectively improve biosynthesis efficiency in steroid medicine.

You might also be interested in these eBooks

Info:

Periodical:

Advanced Materials Research (Volumes 1073-1076)

Pages:

159-164

Citation:

Online since:

December 2014

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2015 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

* - Corresponding Author

[1] D-Ch. Lee, J-Ho. Park, G-J. Kim et al. Modeling, simulation and kinetec analysis of a hterogeneous reaction system for the enzymatic conversion of poorly soluble substrate. Biotechnol Bioeng, 1999, 64: 272-283.

DOI: 10.1002/(sici)1097-0290(19990805)64:3<272::aid-bit3>3.0.co;2-m

Google Scholar

[2] A. Constantinides. Steroid transformation at high substrate concentration using immobilized Coryneacterium Simplex cells. Biotechnol Bioeng, 1980(22): 119-136.

DOI: 10.1002/bit.260220110

Google Scholar

[3] R. Bar. Ultrasounds Enhanced Bioprocell: cholesterol oxidation by Rhodococcus erythropolis. Biotechnol Bioeng, 1988, 132: 655.

Google Scholar

[4] Y.F. Nie. Exploration of mechamism and theory of the induced nodulation by phytohormones and physiological accmmodation substances. Chinese Journal of Nature, 1988, 11(12): 889-893(in Chinese).

Google Scholar

[5] Ch.Y. Pan. Development of plant growth regulator. Anhui Science and Technology, 1997, 4: 24-26(in Chinese).

Google Scholar

[6] K. Yang F.D. Wang.X. Feng, et al., Effect of growth regulator on microbial catalytic transformation of steroid. Journal o f Molecular Catalysis, 1999, 13(2): 137-139 (in Chinese).

Google Scholar

[7] X.J. Li,J.X. Guo,K. Yang. Effect of growth regulator on microbial growth and steroid biotransformation. Journal of naval university of engineering, 2009, 21(1): 26-31(in Chinese).

Google Scholar

[8] X.J. Li,Y. Zh. Ji,K. Yang. Characterization of fungal morphology based on the combination ofmacroscopic view in steroid microbial hydroxylation. Microbiology China, 2011, 38(7): 971-975(in Chinese).

Google Scholar

[9] M. Wang Y.W. Guo W.Y. Lu, et al. Breeding of high hydrocortisone transforming strains and their optimal fermentation conditions[M]. Chinese Journal of Applied Environmental Biology, 2004, 10(5): 663-666(in Chinese).

Google Scholar

[10] M. Korycka-Machala, A. Ziółkowski, A. Rumijowska-Galewicz, et a1. Polycations increase the permeability of Mycobacterium vaccae cell envelopes to hydrophobic compounds. Microbiology, 2001, 147: 2769.

DOI: 10.1099/00221287-147-10-2769

Google Scholar

[11] L. Sedlaczek , B.M. Górmiński , K. Lisowska. Effect of inhibitions of cell envelope synthesis on b-sitosterol side chain degradation by Mycobacterium sp. NRRL MB3683. J Basic Microbiol, 1 994, 34(6): 387.

DOI: 10.1002/jobm.3620340605

Google Scholar

[12] X.J. Li. Effects of substrate pretreatment by dispersant on bioconversion system of steroid. Chemical Industry and Engineering, 2005, 22(5): 329-332(in Chinese).

Google Scholar

[13] B.H. Luo. The effects of Plus factors on two-phase system transform Phytosterol to Androstenedione. Master's thesis of Hefei University of Technology, 2009(in Chinese).

Google Scholar

[14] C.L. Liu,J. Nikas,D. Blankschtein. Novel bioseparations using two-phase aqueous micellar systems. Biotechnology and Bioengineering, 1996, 52(2): 185-192.

DOI: 10.1002/(sici)1097-0290(19961020)52:2<185::aid-bit1>3.0.co;2-m

Google Scholar

[15] M. Smith,J. Zahnley,D. Pfeifer, et al. Growth and cholesterol oxidation by Mycobacterium species in Tween 80 medium. Appl Environ Microbiol, 1993, 59(7): 1425.

DOI: 10.1128/aem.59.5.1425-1429.1993

Google Scholar

[16] P. Jmaes,L. Kutnuy,K. Radka, et a1. Process for the microbial conversion of phytosterols to androstenedione and androstadienedione. US Patent 2000: 6071714.

Google Scholar

[17] K. Yang X.J. Li,X. Feng, et al. Effects of substrate dispersion and dissolution on microbial enzymatic conversion of steroid[J]. Microbiology, 2001, 28(6): 68-71(in Chinese).

Google Scholar

[18] K. Yang X.J. Li,X. Feng. Effects of Surfactant on Solubility and Microbial Conversion of Steroid. Transactions of Tianjin University, 2005, 11(5): 312-317.

Google Scholar

[19] P.G.M. Hesselink, S. Vanvliet,H. Devries, et a1. Optimization of steroid side-chain cleavage by Mycobacterium sp.in the presence of cyclodextrins. Enzyme and Microbial Technology, 1989, 11(7):398-404.

DOI: 10.1016/0141-0229(89)90133-6

Google Scholar

[20] K. Takeda,T. Terasawa,K. Dobashi, et al. Biological process for producing steroids hydroxylated at the 25-position.US Patent Issued on March 28, (2000).

Google Scholar

[21] Manosroi A, Saowakhon S, Manosroi J. Enhancement of androstadienedione production from progesterone by biotransformation using the hydroxypropyl-b-cyclodextrin complexation technique. The Journal of Steroid Biochemistry Molecular Biology, 2008, 108(1-2): 132-136.

DOI: 10.1016/j.jsbmb.2007.05.032

Google Scholar

[22] Y.B. Shen,M. Wang Y.L. Wang. Effects of hydroxypropyl-b-cyclodextrin on the side-chain bioconversion of phytosterols by Mycobacterium sp. NRRL B-3683. Journal of Chemical Engineering of Chinese Universities, 2009, 23(3): 440-444.

Google Scholar