Suitability of South African mango cultivars for agro-processing
2017
Regnier, T. | Augustyn, Wilhelmina Agnes | De Jager, K. | Willemse, S.
South Africa is the second largest exporter of mango in the world, exporting 2.5 million tons of fruit to 92 countries annually. It is an important South African export crop because its production cycle is out of phase with other major competitors. Current processed mango products available in the South African market are canned mango, blended juices containing mango pulp, dried mango and atchar, also known as pickled mango. Due to the increase in the agro-processing market, the potential to develop new processed products of various mango cultivars must be investigated. The aim of the study was to evaluate various mango cultivars and new cultivars (selections) for their suitability in the development of nectars. Five commercial mango cultivars ('Joa', 'Heidi', 'Sensation', 'Keitt', and 'Kent') and three new cultivars ('B26', 'S25', and 'Crimson Pride') were included in this study. A sensory panel evaluated the taste, colour, texture, and overall impression. Shelf-life was evaluated over a 6-month period. In addition, chemical parameters such as pH, vitamin C, carotenoid content, total soluble solids, and phenolic compounds were determined. Of the tree selection, cultivar 'Crimson Pride' displayed the most promising characteristics required for nectar production. 'Crimson Pride' was the only cultivar evaluated that did not decrease in vitamin C content over time (long shelf-life), and it had the highest carotenoid levels of all cultivars tested. From the sensory evaluation, 'Crimson Pride' met consumer approval. The data reported in this preliminary study confirm that the newly developed cultivar 'Crimson Pride' can be used for nectar production.
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