Evaluation of cultivars diversity and lipid composition properties of Idesia polycarpa var. vestita Diels

Abstract

Idesia polycarpa var. vestita Diels is a perennial deciduous tree widely distributed throughout China. Four I. polycarpa fruit of different cultivars with different fruit issues during the growth process were compared, which were on the basis of morphological characteristics and chemical compositions. The influencing factors of oil accumulation in I. polycarpa fruit and the correlation between different components were investigated, and the results revealed a negative correlation between oil content and total sugar (r = −0.930), ash (r = −0.606), and crude fiber (r = −0.952). Except for oil, none of the chemical components changed substantially during the growing phase, and most cultivars showed higher oil content in the pulp portion (14.14-43.99 g/100 g). Linoleic acid was the most abundant fatty acid in I. polycarpa oil (IPO), with values ranging from 52.18% to 66.65% (fruit), 55.44% to 65.15% (pulp), and 68.99% to 78.76% (seed). Principal component analysis revealed that Hubei varieties are more advantageous.Besides, the lipid composition of IPO was identified by ultrahigh-performance liquid chromatography coupled with electrospray ionization Q-Exactive Focus mass spectrometry. The glyceride components of IPO were mostly composed of 22 triacylglycerols, 30 diacylglycerols, and 8 monoacyglycerols. Meanwhile, linoleic acid was mainly distributed in sn-2 and sn-3 positions. K E Y W O R D S chemical properties, fatty acid profile, Idesia polycarpa var. vestita Diels, lipid composition, principal component analysis Practical Application: Morphologic characteristics, chemical compositions, oil fatty acid profiles, and oil correlation factors of I. polycarpa were analyzed. The comprehensive score of oil quality by PCA in Hb fruit was the highest. The glyceride components of I. polycarpa oil were mainly composed of 22 triacylglycerols, 30 diacylglycerols, and eight monoacyglycerols.

A systematic study on composition and antioxidant of 15 varieties of wild Idesia polycarpa fruits in China

“…( 2) was used to determine the initial moisture content. The dry basis 100-grain weight of Idesia polycarpa was repeated as in the steps mentioned above; the difference is that 100 fruits have to be dried (Wen et al, 2022).…”

“…Most of the research on Idesia polycarpa is focused on biodiesel, gardening, seed variation, nursery, and planting technology (Yang et al, 2009;Zhu et al, 2010;Gong et al, 2012;Jia et al, 2014). Idesia polycarpa was included in the general food management system in 2020, and its research mainly focuses on the accumulation of basic nutrients during the growth period (Wen et al, 2022), oil extraction and refinement (Song, 2021), and oil aroma analysis (Chen et al, 2022). Idesia polycarpa fruits are rich in unsaturated fatty acids, tocopherols, glycosides, alkaloids, squalene, phytosterols, flavonoids, polyphenols, and other nutrients and bioactive substances (Yang, 2008).…”

“…Many studies (Kim et al, 2005;Yang, 2008;Jung et al, 2010;Lee et al, 2013;Li, 2018;Li et al, 2020;Song, 2021;Chen et al, 2022;Wen et al, 2022;Xiang et al, 2023) reported the chemical and functional analyses of Idesia polycarpa fruit, but there is limited research on wild samples collected from different geographical regions. Furthermore, the antioxidant property analysis and correlation between all components still require attention.…”

Analysis of Chemical Composition and Antioxidant Activity of Idesia polycarpa Pulp Oil from Five Regions in China

“…However, as far as we know, previous studies focused on the extraction of fruit oil [ 13 , 14 ], and only a few studies have investigated the quality of pulp oil and seed oil. Some studies have already described the content of oil, fatty acid composition and lipid profile of different cultivars of Idesia polycarpa pulp oil and seed oil [ 15 , 16 ]. However, the studies related to the chemical characteristics and active ingredients from different regions of IPPO have not been systematically compared and analyzed.…”

Diversity Analysis of Leaf Nutrient Endophytes and Metabolites in Dioecious Idesia polycarpa Maxim Leaves during Reproductive Stages

“…[19]. This woody oil tree species has a high development value [20] due to the high oil content in its fruit (77% unsaturated fatty acid content and 62.9% linoleic acid content). In addition, it has the potential to be useful in the preparation of biodiesel [21].…”