| Title: | Estimating CO(2) and VOCs production of Colletotrichum fragariae and Rhizopus stolonifer grown in cold stored strawberry fruit |
| Author(s): | Rojas-Flores C; Ventura-Aguilar RI; Bautista-Banos S; Revah S; Saucedo-Lucero JO; |
| Address: | "Centro de Desarrollo de Productos Bioticos, Instituto Politecnico Nacional, Yautepec-Jojutla Km. 6, San Isidro, Yautepec, Morelos, 62731, Mexico. CONACYT-Centro de Desarrollo de Productos Bioticos, Instituto Politecnico Nacional, Yautepec-Jojutla Km. 6, San Isidro, Yautepec, Morelos, 62731, Mexico. Electronic address: riventuraag@conacyt.mx. Universidad Autonoma Metropolitana-Cuajimalpa, Departamento de Procesos y Tecnologia, Avenida Vasco Quiroga 4871, Colonia Santa Fe, Cuidad de Mexico 05348, Mexico. Universidad Autonoma Metropolitana-Cuajimalpa, Departamento de Procesos y Tecnologia, Avenida Vasco Quiroga 4871, Colonia Santa Fe, Cuidad de Mexico 05348, Mexico; CIATEC AC, Centro de Innovacion Aplicada en Tecnologias Competitivas, Omega 201, Leon, Guanajuato, 37545, Mexico" |
| DOI: | 10.1016/j.micres.2019.126327 |
| ISSN/ISBN: | 1618-0623 (Electronic) 0944-5013 (Linking) |
| Abstract: | "The aim of this work was to investigate the early detection of anthracnose and soft rot diseases in cold stored strawberry fruit by evaluating the CO(2) and volatile organic compounds (VOCs) released by the fungi Colletotrichum fragariae and Rhizopus stolonifer. Strawberries were stored at 5, 10 and 21?ª+ degrees C (control group) and the VOCs and CO(2) production of inoculated and non-inoculated strawberries were followed by gas chromatography. To evaluate and estimate the growth of both fungi, the CO(2) data were fitted to the Gompertz model. Data of the VOCs released at the end of the fungal growth were analyzed using principal components analysis (PCA) to discriminate between infected and non-infected strawberries. The results showed that fungal growth was affected by temperature and C. fragariae had a maximum growth after 14.6?ª+h at 5?ª+ degrees C and R. stolonifer at 21?ª+ degrees C after 45.2?ª+h. On the other hand, through VOCs released by C. fragariae and R. stolonifer and PCA, four groups were obtained: a) strawberry infected with C. fragariae, stored at 10?ª+ degrees C, b) strawberry infected with R. stolonifer, stored at 21?ª+ degrees C, c) control group kept at 10?ª+ degrees C and, d) strawberry infected with C. fragariae and control group (5 and 21?ª+ degrees C), and strawberry infected with R. stolonifer at 5 and 10?ª+ degrees C. In conclusion, CO(2) and VOCs released by C. fragariae and R. stolonifer on strawberries could infer the presence of anthracnose and soft rot during storage of the fruit at low temperature" |
| Keywords: | Carbon Dioxide/analysis/*metabolism *Cold Temperature Colletotrichum/*metabolism Food Storage Fragaria/*microbiology Fruit/*microbiology Multivariate Analysis Plant Diseases/microbiology Rhizopus/growth & development/*metabolism Volatile Organic Compounds; |
| Notes: | "MedlineRojas-Flores, Claudia Ventura-Aguilar, Rosa Isela Bautista-Banos, Silvia Revah, Sergio Saucedo-Lucero, Jose Octavio eng Germany 2019/09/10 Microbiol Res. 2019 Nov; 228:126327. doi: 10.1016/j.micres.2019.126327. Epub 2019 Aug 31" |
