Search Results - (Author, Cooperation:C. Casas)

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  1. 1
    Staff View
    Publication Date:
    2015-08-01
    Publisher:
    American Association for the Advancement of Science (AAAS)
    Print ISSN:
    0036-8075
    Electronic ISSN:
    1095-9203
    Topics:
    Biology
    Chemistry and Pharmacology
    Computer Science
    Medicine
    Natural Sciences in General
    Physics
    Published by:
    http://www.aaas.org/

    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Staff View
    Publication Date:
    2018-02-22
    Publisher:
    BMJ Publishing
    Electronic ISSN:
    2044-6055
    Topics:
    Medicine
    Keywords:
    Open access, Diagnostics
    Published by:
    http://group.bmj.com/

    Latest Papers from Table of Contents or Articles in Press
  3. 3
    Selgas, D. ; Luisa Marin, M. ; Pin, C. ; Casas, C.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0309-1740
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0309-1740(93)90076-T

    Articles: DFG German National Licenses
  4. 4
    CASAS, C. ; TORMO, J. ; HERNANDEZ, P. E. ; SANZ, B.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1984
    Staff View
    ISSN:
    1365-2621
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Process Engineering, Biotechnology, Nutrition Technology
    Notes:
    Immunoelectrophoresis in agarose gels has been used to detect and partially characterize specific protein precipitin bands of soluble proteins of pig muscle (PSP), free of cross-reactions with soluble muscle proteins of cow (CSP), horse (HSP) and chicken (CHSP). Out of six precipitin bands obtained by reacting PSPs against an anti-PSP antiserum produced by a rabbit, four bands were observed to appear by reacting HSPs against the same anti-PSP antiserum. Two more bands were detected by analysing CSPs against an anti-PSP antiserum and three bands were detected by analysing CHSPs against the same anti-PSP antiserum. Thus, only one band is specific to the soluble protein of pig muscle. This technique may have the potential to detect the presence of pork in unheated ground meat products.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1111/j.1365-2621.1984.tb00351.x

    Articles: DFG German National Licenses
  5. 5
    Aguilar, A. ; Casas, C. ; Lafuente, J. ; Lema, J.M.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0922-338X
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0922-338X(90)90225-L

    Articles: DFG German National Licenses
  6. 6
    Staff View
    ISSN:
    0009-3084
    Keywords:
    corynebacteria ; mass spectrometry ; mycobacteria ; mycolic acids ; negative ions ; remote site fragmentation
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Biology
    Chemistry and Pharmacology
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    http://linkinghub.elsevier.com/retrieve/pii/0009-3084(89)90063-7

    Articles: DFG German National Licenses
  7. 7
    Staff View
    ISSN:
    0921-4488
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0921-4488(92)90169-5

    Articles: DFG German National Licenses
  8. 8
    Casas, C. ; Tormo, J. ; Hernandez, P.E. ; Sanz, B.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0308-8146
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0308-8146(85)90049-4

    Articles: DFG German National Licenses
  9. 9
    Marin, M.L. ; Casas, C. ; Cambero, M.I. ; Sanz, B.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0308-8146
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition
    Process Engineering, Biotechnology, Nutrition Technology
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1016/0308-8146(92)90229-U

    Articles: DFG German National Licenses
  10. 10
    Poch, M. ; Casas, C. ; Lafuente, F.J. ; Solà, C.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1986
    Staff View
    ISSN:
    1574-6968
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Biology
    Notes:
    Abstract The results obtained in the design and calibration of a deterministic water quality model from the Llobregat River (Spain) are presented. The water quality indicators studied are dissolved oxygen, biochemical oxygen demand, ammonia, nitrite, nitrate, phosphate, and heterotrophic bacteria. The factors which describe the rates of the transformation processes are of two types: first-order and Michaelis-Menten kinetics. A decomposition process is applied to the model for calibration. The inclusion in the model of heterotrophic bacteria shows good predictive capacity to describe the behaviour of the biological processes in the river. The proposed model gives a correct evaluation of the indicators studied, and may be used in water quality management.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1111/j.1574-6968.1986.tb01731.x

    Articles: DFG German National Licenses
  11. 11
    Selgas, M. D. ; Casas, C. ; Toledo, V. M. ; García, M. L.
    Springer
    Published 1999
    Staff View
    ISSN:
    1438-2385
    Keywords:
    Key words Moulds ; Lipolysis ; Dry fermented sausages ; Ripening
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Process Engineering, Biotechnology, Nutrition Technology
    Notes:
    Abstract  Several batches of fermented sausages were prepared and inoculated with five strains of moulds belonging to the genera Penicillium and Mucor, selected for their enzymatic activity, and a strain of Penicillium nalgiovense obtained as a commercial starter culture. Control batches were manufactured similary, but without inoculation. Sausages were produced with either artificial or natural casings, and very similar results were obtained with both. The evolution of the different lipidic fractions was monitored, paying special attention to the free fatty acid (FFA) fraction. Two strains presented a high lipolytic activity as indicated by the rise in FFA in comparison to control batches. In conclusion, not all the mould strains contributed to the lipolytic process occurring during sausage ripening and, therefore, not all of these had a positive effect on the final quality of the product. If moulds are to be used for this purpose it is, therefore, necessary to carefully select suitable moulds beforehand.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/s002170050510

    Articles: DFG German National Licenses
  12. 12
    Staff View
    ISSN:
    1438-2385
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Process Engineering, Biotechnology, Nutrition Technology
    Notes:
    Abstract Proteolytic and lipolytic activities of ninePenicillium strain and oneMucor strain previously isolated from Spanish dry fermented sausages have been studied.P. camemberti STCC 2267 andAspergillus oryzae ATCC 9362 were also used. Myofibrillar and sarcoplasmic proteins as well as fat extracted from pork meat and β-naphthyl acetate, β-naphthyl caprilate and β-naphthyl laurate were used as substrates. Mould strains were grown in an enrichment medium prepared at pH 5.5 and 7.0 and malt extract broth. Strains were incubated at 18°C and 22°C. Myofibrillar proteins and β-naphthyl caprilate were the most hydrolysed substrates. The greater enzymatic activities were observed at a pH 7.0 and 22°C. However, five mould strains showed considerable enzymatic activities under conditions similar to those used for ripening dry fermented sausages. These strains can be assayed as potential starter cultures for industrial sausage production.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01193008

    Articles: DFG German National Licenses
  13. 13
    Adroer, N. ; Casas, C. ; Mas, C. ; Solá, C.
    Springer
    Published 1990
    Staff View
    ISSN:
    1432-0614
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Process Engineering, Biotechnology, Nutrition Technology
    Notes:
    Summary Formaldehyde biodegradation by a strain of Pseudomonas putida has been studied. The results indicate that this biodegradation is initiated by a dismutation reaction, yielding as products formic acid and methanol. The degradation of methanol and formic acid begins after exhaustion of formaldehyde in the medium, and presents a diauxic pattern: first formic acid is consumed followed by methanol. Moreover, cell viability, which is affected by the amount of added formaldehyde, has been determined.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00176528

    Articles: DFG German National Licenses
  14. 14
    Staff View
    ISSN:
    1432-0614
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Biology
    Process Engineering, Biotechnology, Nutrition Technology
    Notes:
    Abstract A recombinant form of the sweet-tasting protein thaumatin has been produced in the filamentous fungus Aspergillus niger var. awamori. Expression cassettes containing a synthetic gene encoding thaumatin II were prepared and used to transform Aspergillus niger var. awamori strain NRRL312. Several fungal strains capable of synthesizing and secreting thaumatin into the culture medium were generated, and their production capabilities were determined, first in shake flasks and later in a laboratory fermentor. We report the expression and secretion of thaumatin in concentrations of 5–7 mg/l. This recombinant thaumatin is sweet.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/s002530051188

    Articles: DFG German National Licenses
  15. 15
    Staff View
    ISSN:
    1433-0350
    Keywords:
    Agyria ; Encephalocele ; Cerebal malformation ; Cerebro-oculomuscular syndrome ; Dandy-Walker malformation ; Hydrocephalus ; Lissencephaly ; Walker-Warburg syndrome
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Medicine
    Notes:
    Abstract The Walker-Warburg syndrome (WWS) is a lethal complex of the central nervous system and the eyes. At present its cause is unknown, but clinical evidence strongly suggests that it is an autosomalrecessively inherited disorder. We report a series of nine children with WWS. The diagnosis was established by the detection of lissencephaly, hydrocephalus, and cerebellar malformation on computed tomography. All children exhibited profound psychomotor retardation and ocular abnormalities (in their anterior or posterior eye chambers). The existence of an occipital encephalocele in eight cases was the main diagnostic clue to WWS. Six patients were investigated for the presence of congenital muscular dystrophy, which was confirmed in only four of them. There were no patients with a cleft lip or palate. We studied the incidence of WWS in Spain and estimated it at 0.21 cases per 10 000 live-born children. In our series, WWS was prevalent in the Spanish gypsy population. Consanguinity was present in five of seven affected families. In a case of preganancy with twins, one of the siblings was unaffected. Eight patients were treated with ventriculoperitoneal shunts and seven underwent encephalocele repair. Histological study of the excised encephaloceles demonstrated two different patterns. Interestingly, one of the infants showed coronal craniosynostosis. Finally, we include in the appendix, for completeness, a report of the case of the sibling of a WWS patient with acrania-exencephaly.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF00570255

    Articles: DFG German National Licenses
  16. 16
    Staff View
    ISSN:
    1435-4373
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Medicine
    Notes:
    Abstract Dengue is seldom recognized as an imported disease in Europe. A prospective clinical study was carried out in 37 travelers suspected to have dengue infection on their return from dengueendemic areas. Anti-dengue antibodies were found in 24 of 37 patients (14 recent infections and 10 undetermined). The most common features among the recent infections were fever (100%), thrombocytopenia (61.5%), abnormal liver function tests (61.5%), and rash (53.8%). In one case, denguehemorrhagic fever grade III was confirmed andlater followed by depression and suicide of the patient. The possibility of local transmission of dengue in Spain is discussed.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1007/BF01701528

    Articles: DFG German National Licenses
  17. 17
    Gòdia, F. ; Casas, C. ; Solà, Ç.

    New York, NY [u.a.] : Wiley-Blackwell
    Published 1987
    Staff View
    ISSN:
    0006-3592
    Keywords:
    Chemistry ; Biochemistry and Biotechnology
    Source:
    Wiley InterScience Backfile Collection 1832-2000
    Topics:
    Biology
    Process Engineering, Biotechnology, Nutrition Technology
    Notes:
    The performance of a continuous vertical packed-bed reactor with yeast immobilized in carrageenan gel beads is reported. The study focuses on the mathematical modelling of the steady-state fermentor behavior by means of a tanks-in-series model which includes the intrinsic kinetic model and the external mass transfer and internal diffusion-reaction conditions in the beads.
    Additional Material:
    6 Ill.
    Type of Medium:
    Electronic Resource
    URL:
    http://dx.doi.org/10.1002/bit.260300705

    Articles: DFG German National Licenses
  18. 18
    Sarrà, M. ; Casas, C. ; Gòdia, F.

    New York, NY [u.a.] : Wiley-Blackwell
    Published 1997
    Staff View
    ISSN:
    0006-3592
    Keywords:
    hybrid antibiotic ; continuous fermentation ; pellet ; morphology ; fluidized bed ; Streptomyces ; immobilized cells ; Chemistry ; Biochemistry and Biotechnology
    Source:
    Wiley InterScience Backfile Collection 1832-2000
    Topics:
    Biology
    Process Engineering, Biotechnology, Nutrition Technology
    Notes:
    The continuous production of a hybrid antibiotic by a transformed strain of Streptomyces lividans TK21 in a three-phase fluidized bed is studied. Cell aggregates, known as pellets, are used as immobilized cell particles in the bioreactor. A methodology to prepare pellets of a suitable size and morphology is developed. The continuous production of the antibiotic is studied on the basis of decoupling cell growth and antibiotic production, by means of phosphate limitation in the growth medium. The best results are achieved at D = 0.021 h1, with alternate feeding of 0 and 0.05 m M phosphate media. Continuous production of the antibiotic can be maintained at satisfactory levels for periods of 60 days, and stable operation of the bioreactor is achieved during 85 days. Finally, the evolution of the internal structure of the pellets during continuous fermentation is studied. © 1997 John Wiley & Sons, Inc. Biotechnol Bioeng 53: 601-610, 1997.
    Additional Material:
    10 Ill.
    Type of Medium:
    Electronic Resource

    Articles: DFG German National Licenses