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New cultivars of Camellia oleifera have been developed and planted in southern China. However, lipid characteristics of their seed oils were still unclear. In this study, nine C. oleifera fruits were collected from different cultivars in different planting regions, and the lipid characteristics, such as oil content, fatty acid composition, triacylglycerol composition, tocopherol content and sterol composition were investigated for their seed oils. The oil content in Yuekexia-2 was the lowest (11.6%), while those in other cultivars ranged from 22.3% to 29.6%. The major fatty acids of C. oleifera seed oils (COSOs) were palmitic acid (16:0, 8.4-11.5%), oleic acid (18:1, 76.3-80.5%), and linoleic acid (18:2, 7.9-12.2%), respectively. Trioleoylglycerol (OOO) was the most abundant triacylglycerol specie (more than 50%) in the COSOs. COSOs contained 21.2-36.4 mg/100 g of α-tocopherol. Seven sterols and squalene were found in all COSOs, while the COSOs showed significant differences in their contents of unsaponifiable matters. The planting region and the cultivar type significantly affected some of the lipid characteristics with the C. oleifera seeds.

Objective: To investigate the massive hydrophobic constituents of Arnebia euchroma, and compare the similarities and differences of AE and AEZ from different sources., Methods: The hydrophobic constituents, AE01-1 and AEZ01-1, were obtained by the chromatograph of silica gel with elution of chloroform used in the chloroform extracts of Arnebia euchroma, AE01 and AEZ01. GC-MS was used to identify the main components of the hydrophobic constituents., Results: 11 and 22 compounds were identified in the hydrophobic constituenty, AE01-1 and AEZ01-1, including 5 common compounds that were the main components. AE01-1, the hydrophobic constituents of AE, had 2 naphthoquinones, while AEZ01-1, the hydrophobic constituents of AEZ, had only lipid compounds., Conclusion: Compared to the AE, AEZ has fewer naphthoquinones with low polarity.