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| Wei,Shiping; Jiang,Zhenglong; Liu,Hao; Zhou,Dongsheng; Sanchez-Silva,Mauricio. |
| Microbiologically induced deterioration (MID) causes corrosion of concrete by producing acids (including organic and inorganic acids) that degrade concrete components and thus compromise the integrity of sewer pipelines and other structures, creating significant problems worldwide. Understanding of the fundamental corrosion process and the causal agents will help us develop an appropriate strategy to minimize the costs in repairs. This review presents how microorganisms induce the deterioration of concrete, including the organisms involved and their colonization and succession on concrete, the microbial deterioration mechanism, the approaches of studying MID and safeguards against concrete biodeterioration. In addition, the uninvestigated research area of... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Microbial deterioration; Concrete corrosion; Biogenic sulfuric acid. |
| Ano: 2013 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822013000400001 |
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| Venturini,Marcela Tonini; Santos,Vanderlei da Silva; Oliveira,Eder Jorge de. |
| Abstract: The objective of this work was to define procedures to assess the tolerance of cassava genotypes to postharvest physiological deterioration (PPD) and to microbial deterioration (MD). Roots of six cassava genotypes were evaluated in two experiments, during storage under different environmental conditions: high temperature and low soil moisture; or low temperature and high soil moisture. Roots were treated or not with fungicide (carbendazim) before storage. Genotype reactions to MD and PPD were evaluated at 0, 2, 5, 10, 15, 20, and 30 days after harvest (DAH), in the proximal, medial, and distal parts of the roots. A diagrammatic scale was proposed to evaluate nonperipheral symptoms of PPD. Fungicide treatment and root position did not influence... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Manihot esculenta; Genotype screening; Microbial deterioration; Procedure standardization; Shelf life; Storage conditions. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2015000700562 |
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