CONTENT OF LUTEIN, ZEAXANTHIN, AND Β-Carotene IN LYOPHILIZED FRUITS OF SELECTED CULTIVARS OF CUCURBITA MAXIMA D

Abstract

Luteina, zeaksantyna i β-karoten są związkami o właściwościach prozdrowotnych. Przedmiotem badań była ocena wybranych odmian dyni Cucurbita maxima D: 'Amazonki', 'Justynki', 'Ambar' i 'Otylii F1' pod względem zawartości wymienionych karotenoidów w próbkach liofilizowanych. Zawartość karotenoidów analizowano z wykorzystaniem HPLC-DAD. Stwierdzono, że liofilizowane owoce badanych odmian dyni są dobrym źródłem luteiny, zeaksantyny i β-karotenu. Dużą zawartość luteiny oznaczono w 1g liofilizatów otrzymanych z owoców odmiany 'Justynka' (0,186 mg) i 'Amazonka' (0,118 mg), podczas gdy najmniej luteiny było w liofilizatach z dyni odmiany 'Ambar', charakteryzujących się najwyższym poziomem β-karotenu (0,411 mg). Najmniejszą zawartością β-karotenu cechowały się liofilizaty otrzymane z owoców odmiany 'Otylia F1'. Stwierdzono, że liofilizaty z owoców dyni Cucurbita maxima D. odmiany 'Justynka', 'Amazonka' i 'Ambar' są bogate w naturalne karotenoidy i mogą być szeroko wykorzystywane w przemyśle spożywczym jako źródło bioaktywnych prozdrowotnych związków fitochemicznych.

Antioxidants and Health-Beneficial Nutrients in Fruits of Eighteen Cucurbita Cultivars: Analysis of Diversity and Dietary Implications

“…Positive correlations between TPCs and the antioxidant capacities were also shown in this work (Table 3). This cultivar is famous for its intensive orange-colored pulp, which results from the high concentration of carotenoids, mainly β-carotene [33,34] whose antioxidant activity is based on singlet oxygen quenching and ability to trap peroxyl radicals [68]. Taking into account the content of phenolic compounds ( Table 2), it is thus justified that both carotenoids and phenolics contributed to the resultant exceptional activity.…”

“…Cucurbitacins are triterpene secondary metabolites shown to induce apoptosis of various cancer cell lines [17,30] and to arrest the cell cycle at the G2/M phase [31,32]. Note, however, that the role of numerous antioxidants including polyphenols found in Cucurbita fruits, in anti-tumor action is still unclear.Yellow to dark-orange colors of Cucurbita fruits result from high content of carotenoids, mainly β-carotene and/or lutein as well as zeaxanthin [33][34][35]. These carotenoids play an essential role in maintaining ocular health status [36]; β-carotene is a precursor of 11-cis retinal, a chromophore of rhodopsin found in rods, receptors enabling vision under low-light conditions.…”

“…Yellow to dark-orange colors of Cucurbita fruits result from high content of carotenoids, mainly β-carotene and/or lutein as well as zeaxanthin [33][34][35]. These carotenoids play an essential role in maintaining ocular health status [36]; β-carotene is a precursor of 11-cis retinal, a chromophore of rhodopsin found in rods, receptors enabling vision under low-light conditions.…”

The Profile of Secondary Metabolites and Other Bioactive Compounds in Cucurbita pepo L. and Cucurbita moschata Pumpkin Cultivars

“…The registration wavelength was λ = 450 nm. Compounds were identified according to their spectra ranging from 200 to 600 nm and retention times compared with standards [57]. As an internal standard, β-carotene, lutein and zeaxanthin were used (SigmaAldrich Chemie GmbH, Steinheim, Germany).…”

Development of potentially probiotic and synbiotic pumpkin frozen desserts

“…This study used the Cucurbita maxima Duchesne pumpkin variety, Polish name -'Justynka F1ʹ, according to the Development of Polish Official Variety Testing. The fruit of this cultivar bred at the Department of Plant Genetics, Breeding and Biotechnology of the Warsaw University of Life Sciences, Poland, were characterized by a high total carotenoid content 0,548 mg/g (Chilczuk, Perucka, Materska, & Buczkowska, 2014).…”