Showing papers in "Journal of Fermentation Technology in 1988"

TL;DR: The reaction system using dried cells immobilized within BSPs is a promising interesterifcation process for industrial applications where cells become immobilized simply during batch operation, and no special preparation of cells is necessary.

TL;DR: The growth kinetics of Aspergillus niger on a solid support, i.e., sugarcane bagasse, impregnated with a liquid glucose medium, were investigated under different culture conditions as mentioned in this paper.

TL;DR: Fed-batch cultures of recombinant Escherichia coli HB101 were investigated to obtain high cell density and large amounts of β-galactosidase (β-gal) and acetate produced by the cells was evidently the main inhibitor of cell growth and β-Gal production.

TL;DR: Investigation of Aspergillus oryzae strains Lee-1, H-16 and MA-27-IM isolated from a commercial koji for soy sauce fermentation found that these glutaminases possessed almost the same properties, suggesting their similarity.

TL;DR: In this paper, the stabilization of a pile of ground urban refuse was monitored during five months, and the humification index (HI) of organic matter extracted by 0.1 M Na4P2O7 plus 0. 1 M NaOH was found to decrease linearly with time during the thermophilic phase from about 1.4 to 0.4.

TL;DR: Dactylosporangium and Microtetraspora, Saccharomonospora, and Micromonospora were most frequently isolated from mountainous forest soils, level-land forest or cultivated field soils, and pasture soils, respectively.

TL;DR: Mycobacterium smegmatis grown on l-sorbose oxidized d-galactitol to d-tagatose in a washed cell reaction with a yield of 60%.

TL;DR: Xylitol was produced from D -xylose using commercial immobilized D - xylose isomerase from Bacillus coagulans and immobilized cells of M. smegmatis and the yield reached about 70% in anaerobic conditions by cells grown on media containing xylitol or D -mannitol.

TL;DR: In this paper, the separation of yeast from yeast suspension or fermentation borth by cross-flow filtration with or without backwashing, using a microporous ceramic membrane, was investigated.

TL;DR: In this article, a fixed-bed reactor with granular diatomaceous earth clay (2-3 mmφ) as a support material was used for the synthesis of H2 and CO2.

TL;DR: Results indicate that the C. pannorum crude enzyme contained exo- and endo-inulinases, which might be used industrially to prepare high fructose syrup from inulin-containing agricultural crops.

TL;DR: The influence of water activity on 2-heptanone production (cheese aroma) by Trichoderma viride TS cultivated on agar media was evaluated through a headspace gas chromatographic analysis.

TL;DR: In this paper, the kinetics of enzymatic interesterification of oils and fats, using acetone-dried cells of Rhizopus chinensis immobilized on biomass support particles as a lipase catalyst, were investigated in batch operations at several constant water concentrations.

TL;DR: Segregation of diploid strains by a haploidizing agent was used to improve citric acid producing strains of Aspergillus niger, and all prototrophic segregants derived from one diploids strain had higher productivities in solid cultures without methanol than in those with methnol.

TL;DR: In this paper, the kinetics of enzymatic interesterification of oils and fats, using acetone dried cells of Rhizopus chinensis as a lipase catalyst, have been investigated in a batch operation.

TL;DR: In this paper, the effect of Eh on methanogenesis of methanol by Methanosarcina barkeri strain Fusaro was studied in pH-controlled anaerobic batch cultures at 37°C, in which the Eh of the culture medium was controlled by the addition of Ti(III)-citrate at values ranging from −340 to −520 mV.

TL;DR: Results indicate that the enzyme isolated from a natural environment is a highly thermostable neutral-(metallo)protease.

TL;DR: In this paper, the use of a flocculent strain and a fermentor with an internal settler resulted in a high ethanol productivity of 70.7 g/l ·h with: ethanol concentration 49.5 g/ l, ethanol yield 0.50 g/g (98% of theoretical and substrate conversion 99%).

TL;DR: A host-vector system for Zygosaccharomyces rouxii was developed and modified to give improved transformation frequencies or to mark a leucine-auxotrophic mutation which is complementable by the LEU2 DNA of S. cerevisiae.

TL;DR: Six strains of methylotrophic yeast were examined for production of l -methionine-enriched cells and a mutant strain, E500-78, which was resistant to 500 μg/ml of dl -eth ionine, accumated 6.02 mg/g-DCW of pool methionine.

TL;DR: In this article, the effects of seeding on the thermophilic composting of household organic waste were examined by measuring the changes in CO2 evolution rate, temperature, conversion of volatile matter, pH, and microbial succession in the composting reaction.

TL;DR: The tolerance of Pichia stipitis Y 7124 to initial added ethanol was evaluated in anaerobic and microaerobic conditions, during the fermentation of a sugar mixture, finding that the ethanol yield appears to be less sensitive to ethanol inhibition.

TL;DR: In this paper, the effects of temperature on enzymatic saccharification of cellulose and simulataneous fermentation (SSF) were investigated with 100 g·l−1 Solka Floc, 5g· l−1Trichoderma reesei cellulase, and Zymomonas mobilis ATCC 29191.

TL;DR: It was estimated that in real solid-state conditions the requirement for cooling air in a mesophilic culture is 2-fold higher than that under thermophilic conditions.

TL;DR: In this paper, the use of an anaerobic digester slurry of cattle waste for the reclamation of acid mine water was examined, and the results showed that the digester and its supernatant (SDF-sup) showed a significant capacity to act as a strong alkaline reagent.

TL;DR: After 20 cycles of culture, CHO-SPN cells still possessed the same EDF productivity and the same growth kinetics and in an appropriate dissolved oxygen concentration and pH controlled culture system, the growth time and cell density became 24 h and 1×10 6 viable cells/ml.

TL;DR: In this paper, the effects of magnesium on excess uptake of phosphate in an aerobic-anaerobic activated sludge process were examined by the fill and draw procedure, and the results showed that the presence of sufficient magnesium was necessary for uptake of excess phosphate.

TL;DR: It is quite possible that the sugars in the fruit juice which play a role as competitive or non-competitive inhibitors on naringinase may account for the stability of the enzyme column during successive debittering of grapefruits juice.

TL;DR: A mutant strain, AF-1, which is resistant to 2-deoxyglucose, was derived and produced glucoamylase in the presence of 0.5% glucose though the parent strain did not and with a rice bran liquid medium the productivity was over 2-times that of the wild type strain.

TL;DR: The anaerobic growth of a respiration-deficient mutant of Saccharomyces cerevisiae on solid medium was estimated by the CO2 evolution rate (CER) and suggested that the maximum ethanol production and maximum cell groth are restricted by the initial moisture content of the solid medium.