Influence of maturity stage of mango at harvest on its ripening quality

Abstract

Influence of maturity stage of mango at harvest on its ripening quality. Abstract-Introduction. The subjectivity of the external criteria used for the determination of mango maturity at its harvest led to the search for additional more reliable parameters to determine the optimal harvest maturity and able to replace the external and internal morphological indices. Materials and methods. Some physicochemical characteristics, such as colour of pulp, soluble dry extract, titratable acidity and weight loss, were evaluated on fruits of the cv. Kent (Mangifera indica L.) collected in North Cote d'Ivoire. The days necessary for ripening after harvest were estimated. Measurements were correlated to five maturity stages corresponding to the fruit harvest carried out at (76, 82, 88, 94 and 100) days after flowering. On each date of harvest, batches of 52 fruits were gathered. On half of them, maturation was observed as of harvest, the other half being kept at room temperature and the ripening evaluation then being done at the end of storage. Results. According to the harvest date, the soluble dry extract values varied from 8.3 °Brix to 10 °Brix at fruit harvest, and from 14.2 °Brix to 20 °Brix after ripening of the fruits stored at ambient temperature. Titratable acidity was correlated positively with maturity stage. Time to ripen and weight loss continuously decreased with the fruit maturity. For mangos of the cv. Kent, the date of the most suitable harvest seemed to be at 94 days after flowering. Mangos collected at 100 days after flowering developed better organoleptic characteristics such as sugar content, peel aspect and pulp colour than those of the fruit harvested earlier. Conclusion. Starting from the 94th day after flowering, the mango of the cv. Kent collected under the conditions of the North Cote d'Ivoire develops its best organoleptic characteristics during ripening. Cote d'Ivoire / Mangifera indica / fruits / harvesting / maturation / ripening Influence du stade de maturité de la mangue à la récolte sur son mûrissement.

Ethylene absorbents influence fruit firmness and activity of enzymes involved in fruit softening of Japanese plum (Prunus salicina Lindell) cv. Santa Rosa

“…Fruit firmness in plums decreased progressively with the increase in storage period at both the stages of maturity, primarily because there might have been progressive increase in fruit softening due to increased activities of PG and PME enzymes, rendering them much softer with the progressive increase in storage period. In general, fruit firmness decreases sharply with ripening, which is influenced by the stage at which fruits are harvested [2].…”

“…Plums harvested at the climacteric stage usually attain an attractive peel colour and have better flavour than those harvested at the pre-climacteric stage. Thus, the stage of maturity at which fruits are harvested may also have a significant influence on colour, texture, fruit softening, enzyme activity and postharvest quality attributes [2]. Further, the perishable nature of ripe plum fruit poses a serious problem for its storage, transport and marketing.…”

Growth, yield and fruit quality of three papaya cultivars grown under protected cultivation

“…Nakasone and Paul [9] reported that environmental factors such as light, wind, edaphic soil characteristics, temperature, soil relative humidity, and biotic factors such as mycorrhizal fungi and genotype significantly affect the productivity and physiology of papaya [11]. Besides environmental factors, fruit chemical features are also affected by location and season [5,12,13], and maturity stage [14]. Temperatures below 20°C have a very negative effect, causing among other problems, carpelloidy, sex changes, reduced pollen viability, and low sugar content of the fruit.…”

Impact of sustained-deficit irrigation on tree growth, mineral nutrition, fruit yield and quality of mango in Spain

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“…The soil-water content (θv) during the irrigation season was recorded using the Frequency Domain Reflectometry (FDR) system (Diviner-Sentek Pty Ltd.), at (10,20,30,40,50, 60 and 70) cm soil depth.…”