Carotenoid composition and bioaccessibility of papaya cultivars from Hawaii

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Papaya (C. papaya) is a rich source of bioactive compounds. However, fruit bioactive content varies greatly depending on factors such as the variety and growing location. In this study, three yellow-fleshed papaya cultivars (Lāʻie Gold, Rainbow, Kapoho Solo) and two red-fleshed cultivars (Sunset and Sunrise) were harvested from different locations throughout the Hawaiian Islands and analyzed for their mineral and carotenoid content using ICP-MS and HPLC, respectively. Bioaccessibility of carotenoids across papaya cultivars were compared using an in-vitro digestion model. Yellow-fleshed papayas contained two major carotenoids: β-carotene and β-cryptoxanthin. In addition to these two carotenoids, red-fleshed papayas also contained high lycopene levels. Varietal and geographical differences were evident in both carotenoid content and their bioaccessibility. β-cryptoxanthin was the main carotenoid among yellow-fleshed cultivars, Laie Gold, Rainbow and Kapoho Solo (242.9–739.5 μg/100 g), followed by β-carotene (152.4–331.0 μg/100 g). The red-fleshed varieties, Sunset and Sunrise, contained 1089.6–1570.4 μg lycopene /100 g. Papayas (100 g) contained 6% and 8% of the dietary reference intake (DRI) for Cu and Mg, respectively, but less than 3% of the DRI for other minerals. Among yellow-fleshed papayas, total carotenoid bioaccessibility was highest in the Rainbow variety from Keaʻau and Kapoho farms on the Island of Hawaii. Bioaccessibility of lycopene from red-fleshed papayas ranged from 1.5–11.4%. Altogether, these findings suggest that not only variety, but also different growing location alter the content and bioaccessibility of carotenoids in papaya.

Original languageEnglish
Article number103984
JournalJournal of Food Composition and Analysis
Volume101
Number of pages12
ISSN0889-1575
DOIs
Publication statusPublished - 2021

Bibliographical note

Publisher Copyright:
© 2021 Elsevier Inc.

    Research areas

  • Bioaccessibility, Carotenoids, Extraction, Food matrix, Lycopene, Minerals, Papaya, β-Carotene, β-Cryptoxanthin

ID: 271686790