In a new approach to microbial gallic acid production by Aspergillus fischeri MTCC 150, 40gL(-1) of tannic acid was added in two installments during the bioconversion phase of the process (25gL(-1) and 15gL(-1) at 32 and 44h respectively). The optimum parameters for the bioconversion phase were found to be temperature: 35°C, pH: slightly acidic (3.3-3.5), aeration: nil and agitation: 250 rpm. A...

Brain region-specific expression of proteolytic enzymes can control the biological activity of endogenous neuropeptides and has recently been targeted for the development of novel drugs, for neuropathic pain, cancer, and Parkinson's disease. Rapid and sensitive analytical methods to profile modulators of enzymatic activity are important for finding effective inhibitors with high therapeutic val...

The efficiencies of bioconversion of twenty-three potential intermediates in the biosynthesis of tylosin were determined with a mutant strain blocked only in tylactone biosynthesis. The results indicated that tylactone, the first intermediate excreted by Streptomyces fradiae, is converted to tylosin by a preferred sequence of reactions which include: (1) addition of mycaminose to the C-5 hydrox...

Red ginseng (Panax ginseng), a Korean traditional medicinal plant, contains a variety of ginsenosides as major functional components. It is necessary to remove sugar moieties from the major ginsenosides, which have a lower absorption rate into the intestine, to obtain the aglycone form. To screen for microorganisms showing bioconversion activity for ginsenosides from red ginseng, 50 yeast strai...

The effectiveness of forest resources depends on the comprehensiveness and rationality their consumption processing into finished products. This article discusses problem using solid fir wood greenery residues generated during industrial production essential oils. Bioconversion is considered to be most promising use. objective this research was study chemical composition bioconversion products ...

Abstract This study evaluates the use of fermentation to increase nutrient availability in pulp and paper bio-sludge (PPBS) as feed for black soldier fly larvae (BSFL). Rearing BSFL on fermented PPBS was carried out a climate chamber order assess survival growth. The used came from chemo-thermomechanical pulp/groundwood mill. at 35 °C 55 °C, respectively, initial pH 10. effects sediment liquid ...

Accurate and robust monitoring of product and reactants in a complex bioconversion stream is essential for the development of effective process control strategies. To monitor a microbially-catalysed Baeyer-Villiger bioconversion of a cyclic ketone to an optically pure lactone, a near infrared (NIR) spectroscopic method has been developed. The reaction, catalysed by cyclohexanone monooxygenase f...

Abstract. The growth rate of Hermetia illucens larvae in the bioconversion organic waste is influenced by media and environmental conditions where BSF lives. This study aims to determine effect feed formula on waste. research method was carried out rearing larvae, making formulas, determining larval length, weight cassava. results showed that feeding from fish waste, tapioca with a chopped diam...