Zobrazeno 1 - 10
of 40
pro vyhledávání: '"S. John Pirt"'
Autor:
S. John Pirt
Publikováno v:
The New phytologistReferences. 102(1)
The commonly quoted values of maximum photosynthetic efficiency have been those obtained by determining the oxygen yield from suspensions of resting algal cells in which growth was disregarded. The unpredictability of the metabolism of resting cells
Autor:
S. John Pirt, Yuan-Kun Lee
Publikováno v:
Journal of Chemical Technology and Biotechnology. Biotechnology. 34:28-32
In a CO2-limited algal culture, grown in a tubular loop photobioreactor, the maximum rate of CO2 absorption increased about 1.5-fold when the culture pH value was increased from 6.5 to 7.5 with a fixed initial PCO2. The mean volumetric CO2 transfer c
Publikováno v:
Journal of Chemical Technology and Biotechnology. Biotechnology. 33:59-75
Design details are presented for the construction of a microcomputer based system to measure and control the growth of an algal population in a continuous-flow bioreactor. Diurnal variation in the light intensity was simulated by computer control of
Autor:
Yuan-Kun Lee, Hushang H. M. Balyuzi, Michael J. Bazin, S. John Pirt, Marek R. Walach, Margaret Watts Pirt
Publikováno v:
Journal of Chemical Technology and Biotechnology. Biotechnology. 33:35-58
A theory of photobioreactor design is developed. A photobioreactor was constructed in the form of a loop made from 52 m of glass tubing of 1 cm bore; the loop covered about 0.5 m2. The culture was illuminated with mercury halide lamps to reproduce su
Autor:
Jeremy R. Court, S. John Pirt
Publikováno v:
Journal of Chemical Technology and Biotechnology. 31:235-240
Fed batch culture was used to investigate penicillin production when the growth of Penicillium chrysogenum was limited by the supply of either sucrose and or ammonium ions. It was found that a ‘quasi steady state’ (in which the growth rate was vi
Autor:
S. John Pirt, Margaret Watts Pirt
Publikováno v:
Journal of Applied Chemistry and Biotechnology. 27:643-650
A high temperature strain of Chlorella was grown photosynthetically with nitrogen limitation of growth over a range of dilution rates up to the critical value of 0.22 h−1. The “total cell dry weight” is distinguished from the “real biomass”
Autor:
S. John Pirt, Yuan-Kun Lee
Publikováno v:
Journal of Chemical Technology and Biotechnology. 31:295-305
A four-membered consortium (MA003) of an algal species and bacteria was selected from a natural source for its ability to grow at 37°C and produce starch photosynthetically from carbon dioxide. The photosynthetic culture consisted of a Chlorella-lik
Autor:
S. John Pirt
Publikováno v:
Journal of Chemical Technology and Biotechnology. 30:176-179
Successful processes for the microbial degradation of synthetic polymers began to emerge in 1978. Organisms capable of biodegradation of polyurethane polyester, polyethylene, polyethyleneglycol, polystyrene, polyvinylalcohol, polyacrylonitrile, nylon
Publikováno v:
Journal of Chemical Technology and Biotechnology. 31:167-177
A new streptomyces strain, designated Streptomyces elizabethii, was isolated from a soil sample using a method which selected antifungal antibiotic producers. S. elizabethii produces an antifungal polyene (elizabethin) and antibacterial actinomycins.
Publikováno v:
Journal of Applied Chemistry and Biotechnology. 27:219-224
The theory of fed batch culture was tested on the cephalosporin C fermentation. In repeated fed batch culture a constant fraction of the culture volume is removed at fixed intervals. Since the productivity (output rate/unit volume) and specific rate