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| Pires,Ana Clarissa dos Santos; Soares,Nilda de Fátima Ferreira; Andrade,Nélio José de; Silva,Luis Henrique Mendes da; Camilloto,Geany Peruch; Bernardes,Patrícia Campos. |
| There is an increasing tendency to add natural antimicrobials of plant origin into food. The objective of this work was to develop a microbial sachet incorporated with allyl isothiocyanate (AIT), a volatile compound of plant origin, and to test its efficiency against growth of yeasts and molds, Staphylococcus sp. and psychrotrophic bacteria on sliced mozzarella cheese. Another objective was to quantify the concentration of AIT in the headspace of cheese packaging. A reduction of 3.6 log cycles was observed in yeasts and molds counts in the mozzarella packed with the antimicrobial sachet over 15-day storage time. The sachet also showed an antibacterial effect on Staphylococcus sp., reducing 2.4 log cycles after 12-day storage. Psychrotrophic bacteria... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antimicrobial sachet; Mozzarella cheese; Food protection; Allyl isothiocyanate. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822009000400036 |
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| Bernardes,Patrícia Campos; Araújo,Emiliane Andrade; Pires,Ana Clarissa dos Santos; Fialho Júnior,José Felício Queiroz; Lelis,Carini Aparecida; Andrade,Nélio José de. |
| The adhesion of the solids presents in food can difficult the process of surface cleaning and promotes the bacterial adhesion process and can trigger health problems. In our study, we used UHT whole milk, chocolate based milk and infant formula to evaluate the adhesion of Enterobacter sakazakii on stainless steel coupons, and we determine the work of adhesion by measuring the contact angle as well as measured the interfacial tension of the samples. Inaddition we evaluated the hydrophobicity of stainless steel after pre-conditioning with milk samples mentioned. E. sakazakii was able to adhere to stainless steel in large numbers in the presence of dairy products. The chocolate based milk obtained the lower contact angle with stainless steel surface, higher... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Enterobacter sakazakii; Hydrophobicity; Adhesion work; Interfacial tension; Dairy products. |
| Ano: 2012 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822012000400004 |
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| Alves,Roberta Barbosa Teodoro; Andrade,Nélio José de; Fontes,Edimar Aparecida Filomeno; Bernardes,Patrícia Campos; Carvalho,Antônio Fernandes de. |
| ABSTRACT The objective of this study was to evaluate the quality of water purification system and identify the bacteria this system, predict bacterial adherence according to the hydrophobicity of these microorganisms and of the polypropylene distribution loop for purified water. The assessment of drinking water that supplies the purification system allowed good-quality physical, chemical, and microbiological specifications. The physicochemical specifications of the distributed purified water were approved, but the heterotrophic bacteria count was higher than allowed (>2 log CFU mL-1).The sanitation of the storage tank with chlorine decreased the number of bacteria adhered to the surface (4.34 cycles log). By sequencing of the 16SrDNA genes, six species... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Purified water/quality; Purified water/adhesion; Purified water/bacterial biodiversity; Prediction thermodynamics; Hydrophobicity. |
| Ano: 2017 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-82502017000200606 |
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| Araújo,Emiliane Andrade; Ribeiro,Lorena; Bernardes,Patrícia Campos; Dores,Milene Therezinha das; Fialho Júnior,José Felício Queiroz. |
| A produção de cenoura em grande escala na região de Rio Paranaíba coloca essa região em posição de destaque no cenário nacional. No entanto, é relatado que ocorre significativa quantidade de sobras após a colheita. O aproveitamento do material descartado na cadeia de alimentos pode se concretizar pelo processamento mínimo, como uma alternativa de agregação de valor. A etapa de sanitização é de extrema importância durante a produção de vegetais minimamente processados. Nesse contexto, objetivou-se estudar o efeito antimicrobiano de nanopartículas de prata na sanitização de cenoura minimamente processada, obtida a partir do aproveitamento das sobras de cenouras da colheita da cidade de Rio Paranaíba, bem como o estudo da termodinâmica de adesão de diferentes... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hortaliça; Nanopartículas de prata; Energia livre de adesão bacteriana; Hidrofobicidade. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782015000901681 |
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