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.

中文翻译：

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基因型对木瓜籽油中类胡萝卜素谱的影响

日本木瓜（Chaenomeles japonica）是一种水果作物，近100％用于工业加工，并产生大量种子。木瓜种子可以用作回收富含植物甾醇，生育酚和类胡萝卜素的油的替代原料。尽管据报道类胡萝卜素含量高，但尚未确定其组成。因此，在本研究中，研究了12种基因型木瓜种子油中类胡萝卜素的分布。总体而言，七类胡萝卜素被鉴定（β胡萝卜素，β隐黄质，玉米黄素，叶黄素，紫黄质，反式- ，以及顺-neoxanthin），其中一个未被识别。在研究过的日本木瓜的八种和三种基因型中，分别发现了八种和七种形式的类胡萝卜素。在SR-1-1A基因型中，仅检测到三个类胡萝卜素。通过HPLC测定的木瓜不同籽油中总类胡萝卜素的含量在2.05-3.81 mg / 100 g油中。PCA显示，大多数研究样本（83％）位于一组中，在大多数基因型的日本木瓜中提供相似的类胡萝卜素成分和浓度。对于需要相似且可重现的质量参数的工业/制造过程的关键发现。