Impact of Genotype on Carotenoids Profile in Japanese Quince (Chaenomeles japonica) Seed Oil
2020
Radziejewska‐Kubzdela, Elżbieta | Górnaś, Paweł
The Japanese quince (Chaenomeles japonica) is a fruit crop that is processed for industry nearly 100% and generates considerable quantities of seeds. The seeds of Japanese quince can be an alternative raw material for the recovery of oil rich in phytosterols, tocopherols, and carotenoids. Despite having been reported for high content of carotenoids, their composition has not been determined yet. Therefore, in the present study, the profiles of carotenoids in the seed oil of 12 genotypes Japanese quince were studied. Overall, seven carotenoids were identified (β‐carotene, β‐cryptoxanthin, zeaxanthin, lutein, violaxanthin, trans‐, and cis‐neoxanthin), and one was unidentified. In eight and three of the investigated genotypes of Japanese quince all eight and seven forms of carotenoids, respectively, were found. While in genotype SR‐1‐1A only three carotenoids were detected. The content of total carotenoids in different seed oils of Japanese quince measured via HPLC was in the range of 2.05–3.81 mg/100 g of oil. The PCA showed that most of the studied samples (83%) were located in one group providing a similar composition and concentration of carotenoids in most genotypes of Japanese quince. A critical finding for industrial/manufacturing processes that require similar and reproducible quality parameters.
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