Saved in:
| Main Author: | |
|---|---|
| Format: | Artículo científico |
| Language: | es |
| Published: |
Instituto Nacional de Ciencias Agrícolas
2016
|
| Subjects: | |
| Online Access: | https://www.redalyc.org/articulo.oa?id=193245041010 https://www.redalyc.org/journal/1932/193245041010/ https://www.redalyc.org/journal/1932/193245041010/html/ https://www.redalyc.org/journal/1932/193245041010/193245041010.epub https://www.redalyc.org/journal/1932/193245041010/movil |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Table of Contents:
- CONTENIDO DE FENOLES TOTALES EN FRUTOS DE MANGO ′SUPER HADEN′ DAÑADOS POR ANTRACNOSIS Y TRATADOS EN POSCOSECHA Akira Pérez Márquez Yamile Vidal Aguiar Tania Mulkay Vitón Agrociencias mango phenol exocarp anthracnose Total phenolic content in the exocarp of fruits is related to their own defense mechanisms against fungal pathogen attack. Colletotrichum gloeosporioides (Penz.) Penz. & Sacc. causes anthracnose in mango (Mangifera indica L.) thereby high postharvest losses. The aim of this study was to evaluate the total phenolic content in damaged and postharvest treated ‘Super Haden’ mango fruits, to make evident its relationship with the defense mechanisms against pathogen infection. Exocarp samples were taken from healthy and anthracnose-damaged (mild, moderate and severe levels) fruits as well as from those postharvest treated with hot water (53 °C for 5 min), polyethylene wax (10 % ST) plus imazalil (800 mg L-1), polyethylene wax (10 % ST) plus imazalil (800 mg L-1) plus two bags of Conserver 21 and a control without application. Samples were lyophilized and the total phenolic content was determined by the method suggested by Slinkard and Singleton (1977) with some modification. Anthracnose-affected fruits showed a lower total phenolic content: 59,25 at the mild degree, 58,63 at the moderate and 56,52 mg of galic acid g-1 fresh weight at the severe level, showing significant differences between damage levels and health fruits. Postharvest treatments increased total phenolic content. Hot water and the combination of polyethylene wax plus imazalil showed values of 37,58 and 37,11 mg of galic acid g-1 fresh weight respectively, compared with the control value of 33,94 mg galic acid g-1 fresh weight, showing a correspondence with a lower disease occurrence. 2016 artículo científico 1819-4087 https://www.redalyc.org/articulo.oa?id=193245041010 https://www.redalyc.org/journal/1932/193245041010/ https://www.redalyc.org/journal/1932/193245041010/html/ https://www.redalyc.org/journal/1932/193245041010/193245041010.epub https://www.redalyc.org/journal/1932/193245041010/movil es http://www.redalyc.org/revista.oa?id=1932 Cultivos Tropicales application/pdf Instituto Nacional de Ciencias Agrícolas Cultivos Tropicales (Cuba) Num.1 Vol.37