Papers by Antonino Pollio
Journal of Hazardous Materials, Jan 31, 2008
Giornale botanico italiano, 1996
The present study reports results of an experimental campaign of autotrophic cultures of Stichoco... more The present study reports results of an experimental campaign of autotrophic cultures of Stichococcus strains in lab-scale bubble columns operated as photobioreactors. Air was sparged at the bottom through a porous ceramic distributor. Microalgae growth and lipid production were investigated at 23°C and 140 E/(m 2 s) light irradiance. Lipids were extracted from dried microalgae and transesterified with alkaline methanol. The lipid content/distribution of the bio-oil was assessed. The effects of the air volumetric flow rate and operation modality with respect to the liquid phase – batch, fed-batch and semicontinuous -were investigated.
Journal of nephrology
Ancient texts contain an extremely large and readily accessible body of information on traditiona... more Ancient texts contain an extremely large and readily accessible body of information on traditional medicine describing a range of plants and other substances that have been recently investigated systematically. However, prospecting for drugs from herbals raises problems with philology and plant identification. We combined our expertise to re-examine Squill an ancient medicinal plant which deserves modern scientific investigation. For this, invaluable help has come from new computer technologies which allow access to the most important libraries of the History of Medicine.
Journal of Biotechnology, 2015
The kinetic characterization of the photosynthetic activity in autotrophic microalgae plays a key... more The kinetic characterization of the photosynthetic activity in autotrophic microalgae plays a key role in the design of optimized photobioreactors. This paper presents a procedure to assess kinetic parameters of a three-state photosynthetic reaction centres model. Four kinetic parameters of the model were assessed by processing the time-series measurements of pulse-amplitude modulation fluorimetry. The kinetic parameters were assessed for several microalgal strains (Stichococcus bacillaris, Scenedesmus vacuolatus, Chlamydomonas reinhardtii, Chlorella vulgaris) growth in vertical and inclined bubble columns and irradiated by white-light or red/blue light. The procedure was successfully applied to the investigated strains. The assessed parameters allow identifying the irradiance range under which: the photochemical process is controlled by the photons capture; the photoinhibition competes with the photochemical quenching. The analysis of the time-scale of the photosynthetic reaction centres as a function of the irradiance allows interpreting the performances of photobioreactors characterized by non-homogeneous irradiance.
Allelopathy Journal
A wide range of genotoxicity assays are available to determine the DNA damage in plant cells caus... more A wide range of genotoxicity assays are available to determine the DNA damage in plant cells caused by allelochemicals. However most of them, sometimes present some technical difficulties in interpretation of results. Acridine orange/ethidium bromide double staining assay is proposed as a rapid, inexpensive and easy-to-perform assay to investigate the apoptotic damage from phenols in plant cells. Our data support the validity of this assay and the hypothesis that phenols induce unrepairable severe genetic alterations due to apoptosis. The proapoptotic effects of Olive oil Mill wastewaters (OMWW, rich in polyphenols and catechol) were investigated on radish root cells. In 25% OMWW treated root cells, strong DNA fragmentations and hypersegmented nuclei were observed and increase in percentage of total apoptotic cells was registered during 24 h. The root cells treated with 12.5% OMWW showed the typical apoptotic hallmarks, but the percentage of total apoptotic cells decreased from 92% ...
Oxidative Medicine and Cellular Longevity, 2015
Giornale botanico italiano, 1983
ABSTRACT
Journal of nephrology, Jan 23, 2013
Archiv für Protistenkunde, 1991
... 1 Authors' addresses: Dr. Patrizia Albertano, II Università di Roma, Dipartimento di... more ... 1 Authors' addresses: Dr. Patrizia Albertano, II Università di Roma, Dipartimento di Biologia, Via E. Carnevale, 1-00173 Roma, Italia; Prof. Gabriele Pinto, Dr. AntoninoPollio, Prof. Roberto Taddei, Università di Napoli, Dipartimento ...
Archiv für Protistenkunde, 1994
... 1 Authors' addresses: Dr. Patrizia Albertano, Department of Biology, University of R... more ... 1 Authors' addresses: Dr. Patrizia Albertano, Department of Biology, University of Rome 'Tor Vergata', v. E. Carnevale, 00173 Rome, Italy. 2 Prof. Gabriele Pinto and Dr. Antonino Pollio, Department of Plant Biology, University of Naples 'Federico II', via Foria 223, 80139 Naples ...
Biotechnology letters, 2003
The treatment of olive oil mill wastewater (OMW) with two phenol resistant algae, Ankistrodesmus ... more The treatment of olive oil mill wastewater (OMW) with two phenol resistant algae, Ankistrodesmus braunii and Scenedesmus quadricauda, showed a limited reduction of phenol content after 5 d of treatment, irrespective of algal concentration. Otherwise, cultures of both algae, grown in the dark, degraded over 50% of the low molecular weight phenols contained in OMW, but they were not completely removed, but were biotransformed into other non-identified, aromatic compounds.
Giornale botanico italiano, 1994
The tropical aquatic weed Eichhornia crassipes (Mart.) Solms. commonly known as water hyacinth, i... more The tropical aquatic weed Eichhornia crassipes (Mart.) Solms. commonly known as water hyacinth, is a highly invasive plant. The ability of the water hyacinth to modify the physico-chemical conditions of its aquatic environments (RAY DN & DATTA MUNSHI, JS, ...
BioMed Research International, 2015
Scenedesmus quadricauda (1.5 x 10 cells/ml) grown in myxotrophic conditions reduced in good yield... more Scenedesmus quadricauda (1.5 x 10 cells/ml) grown in myxotrophic conditions reduced in good yields (>63%) exogenous adrenosterone to 11-ketotestosterone. Cultures preadapted on glucose, saccharose or starch (10 mg/l) biotransformed about 80% of adrenosterone (100 mg/l) in seven days. Almost quantitative yields of bioconversion were afforded at higher algal biomass.
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Papers by Antonino Pollio