ISHS Acta Horticulturae 231: II International Symposium on Mango
AN APPROACH TO INTEGRATED POST-HARVEST HANDLING OF MANGO |
| Authors: | S. K. Roy, G.D. Joshi |
| Abstract:
The post-harvest handling operations has a considerable bearing on the mango industry. Lack of proper handling system in India after hervest results not only in huge loss of quantity and quality of mango but also affects both internal and export trade of mango. In order to overcome this handicap, the mangoes should be harvested at optimum maturity, graded, treated properly, packed ideally, transported carefully and stored at desired temperature. In the present study, the mangoes (cultivar Alphonso) were harvested (when a few partially ripe fruits dropped naturally from the tree) manually at Dapoli (Maharashtra). The fruits were catagorized into 4 specific gravity (sp. gr.) groups, namely, sp.gr. < 1, 1-1.02, 1.02-1.04 and > 1.04. By this method, it was observed that 80 per cent of the fruits were mature (sp. gr. > 1), It was noticed that in commercial harvesting when only apparently mature fruits were harvested more than 95 per cent fruits were found to be mature but incidence of spongy tissue was more. The immature Alphonso fruits (sp. gr. < 1) were completely free from spongy tissue. However, both the incidence and intensity of spongy tissue increased with the increase in sp. gr above 1. On the basis of best organoleptic qualities, resistance to chilling injury and less incidence of spongy tissue, the fruits having sp. gr. 1.02-1.7 could be considered the best for subsequent marketing and storage. Amongst the post-harvest treatments, bavistin (1000 ppm), hot (520 °C), dip (5 min) was adjudged the most effective from the point of view of shelf-life. Out of the different types of packaging tried, corrugated fibre board (CFB) box with partition was the best. After transport by road and rail (from Dapoli to New Delhi via Bombay), it was noticed that fruits packed in CFB box with partition were intact in their position, while those in other packaging material were considerably disturbed and bruised. Mangoes in CFB box with partition had lower loss in weight ripening intensity and spoilage than those in any other packaging material and, in turn, had higher shelf-life. The fruits at cool storage (10°C) showed maximum storage life. However, exhibited lower TSS, sugars and total carotenoid pigments but higher moisture acidity, ascorbic acid and tannins compared to those ripened at room temperature | |
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