In Vitro Bioaccessibility of Carotenoids and Chlorophylls in a Diverse Collection of Spinach Accessions and Commercial Cultivars
| Autor: | Allen Van Deynze, Marti Pottorff, Colin D. Kay, Micaela Hayes, Massimo Iorrizo, Mario G. Ferruzzi, Juliana Osorio-Marin, Mary Ann Lila |
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| Rok vydání: | 2020 |
| Předmět: |
Chlorophyll
0106 biological sciences Chlorophyll b Lutein Chlorophyll a 01 natural sciences chemistry.chemical_compound Spinacia oleracea Food science Cultivar Carotenoid chemistry.chemical_classification biology Chlorophyll A 010401 analytical chemistry food and beverages General Chemistry beta Carotene biology.organism_classification Carotenoids 0104 chemical sciences chemistry Postharvest Spinach General Agricultural and Biological Sciences 010606 plant biology & botany |
| Zdroj: | Journal of Agricultural and Food Chemistry. 68:3495-3505 |
| ISSN: | 1520-5118 0021-8561 |
| DOI: | 10.1021/acs.jafc.0c00158 |
| Popis: | Spinach, a nutrient-dense, green-leafy vegetable, is a rich source of carotenoid and chlorophyll bioactives. While the content of bioactives is known to vary with the genotype, variation in bioaccessibility is unknown. Bioaccessibility was explored in 71 greenhouse-grown spinach genotypes in fall and spring 2018/2019. Spinach was phenotyped for its greenness, leaf texture, leaf shape, and SPAD chlorophyll content. Postharvest, spinach was washed, blanched, and homogenized prior to assessment of bioactive bioaccessibility using a novel high-throughput in vitro digestion model followed by high-performance liquid chromatography with a photodiode array detector analysis. There was a significant variation in the bioaccessible content for all bioactives (p < 0.05), except for chlorophyll b (p = 0.063) in spring-grown spinach. The correlation coefficients of bioaccessible contents between seasons reveal that lutein (r = 0.52) and β-carotene (r = 0.55) were correlated to a greater extent than chlorophyll a (r = 0.38) and chlorophyll b (r = 0.19). The results suggest that carotenoid and chlorophyll bioaccessible contents may vary based on spinach genotypes and may be stable across seasons. |
| Databáze: | OpenAIRE |
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