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ISHS Acta Horticulturae 368: International Symposium on Postharvest Treatment of Horticultural Crops

STORAGE STABILITY OF CAROTENOIDS FROM NEW HYBRIDS PRODUCED FROM HUNGARIAN AND SPANIS PAPRIKA CULTIVARS

Authors:   P.A. Biacs, H.G. Daood, M.A. Dakar, T. Huszka jun
Abstract:
In this work different hybrids produced by crossing the Hungarian red long with the Spanish lilac round cultivars were investigated for the differences in carotenoid composition, endogeneous antioxidant content and storage stability of their powders during a 6-month storage at refrigeration and ambient temperatures.

The different cultivars and their hybrids varied substantially in capsanthin/ capsurobin ratio, capsanthin/violaxanthin ratio, and red carotenoid, ascorbic acid, alpha-tocopherol content. The lilac fruits were characterized by their higher capsurobin, violaxanthin and beta-carotene content as compared to those of red colour.

Hybridization of lilac round with red long cultivars yielded a first generation having lilac demi-long fruits. The subsequnt generation had 12 plant combinations differing in fruit shape and colour. The data of several chemical analyses indicated that both red and lilac colored fruits of semi-determinate plants had better quality (red pigments and antioxidant content) attributes than those harvested from unrestricted ones. The highest level of carotenoids, ascorbic acid and tocopherol was recorder for lilac demi-long fruits from semi-determinate plants. Therefore, powder produced from such fruits showed the highest colour stability during storage. Unexpectedly fruits of unrestricted plants had the lowest carotenoid and antioxidant content and accordingly, their powders showed the lowest retention of red pigments after a 6-month storage.

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