L- Tryptophan Production by Whole Cells of Escherichia coli Based on Iranian Sugar Beet Molasses
نویسندگان
چکیده
منابع مشابه
l- tryptophan production by whole cells of escherichia coli based on iranian sugar beet molasses
conclusions our present study shows that sugar beet molasses is a source of plp and l-ser; and hence, suggests the general application of the approach to produce l-trp more economically. results consequently, the potassium phosphate buffer system was considered as the suitably buffered reaction medium. the concentration of l-trp produced in reaction medium was 0.3 mm and 0.12 mm for glucose and...
متن کاملL-tryptophan production by Escherichia coli in the presence of Iranian cane molasses
The essential amino acid L-tryptophan (Trp) has importance as a pharmaceutical agent, especially in neuro-medicine. It is also added to feed products as a food fortifier. Furthermore, application of Trp is widespread in biotechnology. Trp is produced by a condensation reaction between indole and Lserine, which is catalyzed by bacterial tryptophanase activity. In this study, we have investigated...
متن کاملOptimization of L-Tryptophan Biosynthesis From L-Serine of Processed Iranian Beet and Cane Molasses and Indole by Induced Escherichia coli ATCC 11303 Cells
BACKGROUND L-tryptophan is an important ingredient in medicines, especially in neuromedicines such as antidepressants. Many commercial processes employ various microorganisms with high tryptophan synthase activity to produce L-tryptophan from indole and L-serine, but these processes are very costly due to the costs of precursors, especially L-serine. OBJECTIVES For this reason, we studied the...
متن کاملoptimization of l-tryptophan biosynthesis from l-serine of processed iranian beet and cane molasses and indole by induced escherichia coli atcc 11303 cells
background l-tryptophan is an important ingredient in medicines, especially in neuromedicines such as antidepressants. many commercial processes employ various microorganisms with high tryptophan synthase activity to produce l-tryptophan from indole and l-serine, but these processes are very costly due to the costs of precursors, especially l-serine. objectives for this reason, we studied the a...
متن کاملBiosurfactant production in sugar beet molasses by some Pseudomonas spp.
In this study rhamnolipid biosurfactant production was investigated in eighteen strains of Pseudomonas spp.. Rhamnolipid by these strains was determined by a spectrophotometric method in nutrient broth medium (NB). From the 18 strains screened, two Pseudomonas strains (Pseudomonas luteola B17 and Pseudomonas putida B12) which had produced the highest percentage yield of rhamnolipid were examine...
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ژورنال
عنوان ژورنال: Jundishapur Journal of Microbiology
سال: 2013
ISSN: 2008-3645,2008-4161
DOI: 10.5812/jjm.5370