Responses of 'Carabao' mango (Mangifera indica) fruit to chilling stress.
Agillon A. B., Lizada M. C. C.
Author Affiliation: Bureau of Agricultural Research, Elliptical Road, Diliman, Quezon City, Philippines.
: 467-474
Abstract : Chilling injury (CI) in the 'Carabao' mango fruit was characterized in terms of changes associated with two phases in its development: induction and symptom expression. CI manifested as light brown surface lesions progressively coalescing at 5°C storage and associated with increased ethylene production. Susceptibility was associated with a high proportion of SFA/UFA. Hot water treatment, regardless of maturity, enhanced injury development. Total phenols increased, while polyphenoloxidases (PPO) activity decreased at 5°C. The increase in total phenols is consistent with the involvement of phenolic oxidation in symptom expression. The severity of symptoms in mango is then an overall expression of the degree of unsaturation of PL and increase of PPO's substrate.