July 2015

Control of Sclerotium rolfsii in peanut by using Cymbopogon martinii essential oil

Essential oils of seven species were investigated in order to control peanut plants against white mold (Sclerotium rolfsii Sacc.). The assays were carried out by in vitro and in vivo assays. At first, fungitoxicity and suppression of oxalic acid diffusion (SOAD) bioassays were performed in order to evaluate the mycelial growth of fungus. Then, validation assays were carried out in greenhouse, involving inoculation of...

Author(s): Yrlânia de Lira Guerra, Thiago Alves Santos de Oliveira, Delson Laranjeira, Liziane Maria Lima, Péricles de Albuquerque Melo Filho and Roseane Cavalcanti dos Santos

July 2015

Quality of honey sold in the state of Alagoas, Brasil

The present study aimed to determine the quality of honey marketed in the State of Alagoas, Brazil. Fifteen samples of Apis mellifera L. honey sold in supermarkets, free trade, and cooperative located in the State of Alagoas were acquired. Microbiological and physical-chemical analyzes were carried out to establish a standard microbiology condition and check for possible tampering. The physico-chemical analyzes showed...

Author(s): Thaís Patrícia Alves, Tania Marta Carvalho dos Santos, Cícero Cerqueira Cavalcanti Neto,  Roger Nicolas Beelen, Sybelle Georgia Mesquita da Silva and Yamina Coentro Montaldo

July 2015

Response surface optimization of xylanase production by indigenous thermoalkalophillic Bacillus sp.

Xylanases are an important class of hydrolytic enzymes with a wide range of industrially important applications especially in paper and pulp industry. The present study aimed to take the advantage of statistical approach of optimization to investigate the interactive effects of prominent process factors involved in xylanase production. A novel bacterial isolate Bacillus sp. MCC 2727 was isolated from soil possessing...

Author(s): Shanthi V. and Roymon M. G.

July 2015

Resistance to disinfectants and antibiotics of Pseudomonas spp. and Listeria spp. biofilms on polystyrene and stainless steel

The capacity of Pseudomonas spp. and Listeria spp. isolates in forming polystyrene and stainless steel biofilms was assessed and their resistance to disinfectants and antibiotics agents was verified. Isolates originated from chicken and buffalo meat cuts in abattoirs and retail outlets in the southern region of the state of Rio Grande do Sul, Brazil. Isolates which formed stainless steel biofilm were tested with regard...

Author(s): Fernanda Demoliner, Karen Damasceno de Souza, Denise Oliveira Pacheco, Eduarda Hallal Duval, Jozi Fagundes de Mello, Kelly Lameiro Rodrigues and Eliezer Avila Gandra