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Cordyceps militaris exo-polysaccharides (EPS) have been reported to possess many benefits, such as anti-tumor, anti-inflammatory and antioxidant activities. In this study, the production of EPS via cultivation in a bioreactor was investigated. Glucose and yeast extract were determined to be the most suitable carbon and nitrogen sources for EPS production. The appropriate levels of glucose and yeast extract were 40 g/L and 10 g/L, respectively, resulting in EPS production of 1.686 g/L in a submerged culture. In the stirred-tank fermentor, an agitation rate of 150 rpm and aeration rate of 1.5 vvm were the most effective for EPS production. Due to the anchoring of mycelial cells on the wall of fermentor, a repeated batch approach was used. EPS production of C. militaris could be enhanced to a maximum of 5.713 g/L, with a productivity of 476 mg/L/day in the second run. The repeated batch approach was expected to generate higher EPS production, increase EPS yield and productivity and further simplify cultivation operations for bio-industrial application.
This article was published in the following journal.
Name: Journal of bioscience and bioengineering
Cordyceps militaris is a species of Cordyceps that is classified in the Cordycipitaceae family and is well known in East Asia as a traditional medicinal mushroom. Its artificial fruit body has been wi...
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A DNA amplification technique based upon the ligation of OLIGONUCLEOTIDE PROBES. The probes are designed to exactly match two adjacent sequences of a specific target DNA. The chain reaction is repeated in three steps in the presence of excess probe: (1) heat denaturation of double-stranded DNA, (2) annealing of probes to target DNA, and (3) joining of the probes by thermostable DNA ligase. After the reaction is repeated for 20-30 cycles the production of ligated probe is measured.
Further or repeated use of equipment, instruments, devices, or materials. It includes additional use regardless of the original intent of the producer as to disposability or durability. It does not include the repeated use of fluids or solutions.
Methods for cultivation of cells, usually on a large-scale, in a closed system for the purpose of producing cells or cellular products to harvest.
A genus of ascomycetous fungi (ASCOMYCOTA), family Clavicipitaceae, order HYPOCREALES, that grows by infecting insect larvae or mature insects with spores that germinate often before the cocoon is formed.
A mitosporic fungal genus. Teleomorphs are found in the family Clavicipitaceae and include Cordyceps bassiana. The species Beauveria bassiana is a common pathogen of ARTHROPODS and is used in PEST CONTROL.