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Continuous limonin degradation by immobilized Rhodococcus fascians cells in K-carrageenan


, : Continuous limonin degradation by immobilized Rhodococcus fascians cells in K-carrageenan. Applied Microbiology & Biotechnology 41(4): 487-493

Limonin can be effectively degraded by Rhodococcus fascians cells. These bacteria can be entrapped in kappa-carrageenan, and used in a continuous stirred tank reactor to degrade limonin in a continuous process. The effects of temperature, limonin concentration, dilution rate, and aeration on the reactor behaviour have been tested, and the results correlated with changes in limonin conversion, substrate degradation rate, and free and immobilized biomass. Results showed that the immobilized cells were able to debitter limonin-containing media and the immobilized biomass was quite stable throughout the operational conditions tested. A population of free biomass was present in the reactor, the quantity of which was dependent on dilution rate. The immobilized bacteria increased its limonin-degrading capability when the substrate concentration was increased. The aeration was not strictly necessary for limonin degradation. Additionally, the immobilized cells were active and stable for more than 2 months of continuous operation, and were able to recover their limonin-degrading capability when used intermittently. Finally, none of the main components of a juice was noticeably altered during limonin degradation, so the reactor response was good enough to consider its application.

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Other references

Foster, H.G.J.; Frederick, C.D., 1973: Producing an extruded cheese product in snack sized form. A heated plastic cheese formulation is rapidly and evenly cooled with agitation under a gauge pressure of 165-195 lb/in2 and is then extruded and cut into snack-size pieces having compacted homogeneous texture and smooth, glossy appearance.

Ward, J.L.; Smith, D.F.; Fubini, S.L.; Deuel-Aromando, D.M., 1994: Evaluation of abomasal outflow diversion as an experimental model of hypochloremic, hypokalemic metabolic alkalosis in lactating cows. Four adult, lactating dairy cows were subjected to diversion (loss) of gastric contents through a T-shaped cannula placed in the cranial part of the duodenum just distal to the pylorus. Diversion was continued for 10 to 12 hours, at which point th...

D.Carmoy G., 1982: The new French energy policy. Main points of the new French energy policy, including a table of production and demand in 1973 and 1981 and a comparative table of consumption estimates for 1990 of the former and present government. The new policy involves control of the nuclear...

Barnaud J., 1972: Dental caries and their prevention in french polynesia. Medecine d'Afrique Noire 19(10): 741-750

Hopf-Lüscher, H., 1968: The medical foundation for health education in the curriculum. Zeitschrift für Krankenpflege. Revue Suisse des Infirmieres 61(6): 247-250

Miguel,A.A.; Pinho,J.L.N.de; Crisostomo,J.R.; Melo,R.F.de, 2008: Yield and postharvest quality of melon hybrids cultivated at the east coast of Ceara State. The fruit yield and quality of 9 yellow melon hybrids (Gold Pride, Gold Star, TSX 32096, Yellow Queen, PX 4910606, AF 682, XPH 13021, AF 646 and Gold Mine) were evaluated in Pacajus, Ceara, Brazil, from September to December 2000. Fruit yield, ave...

Ohta, M.; Marceau, N.; French, S.W., 1988: Changes in the organization and antigenic determinants of intermediate filaments of rat hepatocytes after infusion of cytochalasin B in vivo. The changes in cytokeratin intermedial filaments (IFs) after cytochalasin B (CB) infusion of rat liver in vivo were studied by light and electron microscopy, immunofluorescent staining (IMF), and immunoelectron microscopy (IEM). The CB treatment c...

Kang, Y.; Durfee, T.; Glasner, J.D.; Qiu, Y.; Frisch, D.; Winterberg, K.M.; Blattner, F.R., 2004: Systematic mutagenesis of the Escherichia coli genome. A high-throughput method has been developed for the systematic mutagenesis of the Escherichia coli genome. The system is based on in vitro transposition of a modified Tn5 element, the Sce-poson, into linear fragments of each open reading frame. Th...

Onyüksel, H.; Sethi, V.; Weinberg, G.L.; Dudeja, P.K.; Rubinstein, I., 2007: Bupivacaine, but not lidocaine, disrupts cardiolipin-containing small biomimetic unilamellar liposomes. Inadvertent intravenous administration of bupivacaine, unlike that of lidocaine, is associated with significant cardiotoxicity. However, the mechanism(s) underlying this phenomenon is uncertain. High concentrations of cardiolipin, an anionic phos...

Ahirwal, M.K.; Kumar, A.; Singh, G.K., 2014: EEG/ERP adaptive noise canceller design with controlled search space (CSS) approach in cuckoo and other optimization algorithms. This paper explores the migration of adaptive filtering with swarm intelligence/evolutionary techniques employed in the field of electroencephalogram/event-related potential noise cancellation or extraction. A new approach is proposed in the form...