Consulta: creatorFacets:"Gianfreda,Liliana"
Registros recuperados: 3
Data/hora: 02/06/2024 10:29:28

EFFECT OF PENTACHLOROPHENOL ON SELECTED SOIL ENZYME ACTIVITIES IN A CHILEAN ANDISOL
Provedor de dados: 127
Autores: Diez J,M. Cristina; Gallardo A,Felipe; Saavedra,Gisselle; Cea L,Mara; Gianfreda,Liliana; Alvear Z,Marisol.
The activities of laccase, Mn-peroxidase, phosphatase and dehydrogenase were studied in a Chilean Andisol (Temuco Serie) contaminated with pentachlorophenol (PCP). Experiments were conducted on the top of 0-20 cm soil, adding different concentrations of PCP (0.41, 4.1 and 41 mg kg-1). Enzymatic activities and residual concentrations of PCP were evaluated in soil incubated at 25 ± 1 ºC for 112 days. Enzyme activities of PCP-treated soil varied according to the PCP concentration added. For instance, an inhibitory effect on Mn-peroxidase activity was not observed during incubation at the three levels of PCP, whereas acid phosphatase activity was only affected by the 0.41 mg kg-1 PCP treatment. By contrast, laccase and dehydrogenase activities were negatively...
Tipo: Journal article
Palavras-chave: Pentachlorophenol; Andisol; Laccase; Mn-peroxidase; Phosphatase; Dehydrogenase.
Ano: 2006
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912006000300004

THE EFFECT OF COMPOST AND SEWAGE SLUDGE ON SOIL BIOLOGIC ACTIVITIES IN SALT AFFECTED SOIL
Provedor de dados: 127
Autores: Lakhdar,Abdelbasset; Scelza,Rosalia; Scotti,Riccardo; Rao,Maria A; Jedidi,Naceur; Gianfreda,Liliana; Abdelly,Chedly.
Saline soil was amended with 13.3 and 26.6 g kg-1 of Municipal Solid Waste (MSW) compost or sewage sludge, and arylsulphatase (ARY), phosphatase (PHO), dehydrogenase (DEH), (&amp;#946;-glucosidase ((&amp;#946;-GLU), urease (URE) and catalase (CAT) activities as well as physical-chemical properties were determined after 70 day of incubation under laboratory conditions. MSW compost and sewage sludge significantly improved soil physical-chemical properties, especially carbon and nitrogen contents. Accordingly, overall enzyme activities were substantially promoted in presence of both amendments and the higher increases were measured at 13.3 g kg-1 of MSW compost (increases by 107%, 43%, 20%, 11%, and 148% for, DEH, (3-GLU, PHO, URE, and CAT, respectively)....
Tipo: Journal article
Palavras-chave: Biologic activities; MSW compost; Saline soil; Sewage sludge.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912010000100005

Restoration of polluted soils by means of microbial and enzymatic processes
Provedor de dados: 127
Autores: Gianfreda,Liliana; Mora,María Luz; Diez,María Cristina.
Tipo: Journal article
Ano: 2006
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912006000100004