Comparison of Oil Content and Fatty Acid Profile of Ten NewCamellia oleiferaCultivars

Abstract

The oil contents and fatty acid (FA) compositions of ten new and one wild Camellia oleifera varieties were investigated. Oil contents in camellia seeds from new C. oleifera varied with cultivars from 41.92% to 53.30% and were affected by cultivation place. Average oil content (47.83%) of dry seeds from all ten new cultivars was almost the same as that of wild common C. oleifera seeds (47.06%). New C. oleifera cultivars contained similar FA compositions which included palmitic acid (C16:0, PA), palmitoleic acid (C16:1), stearic acid (C18:0, SA), oleic acid (C18:1, OA), linoleic acid (C18:2, LA), linolenic acid (C18:3), eicosenoic acid (C20:1), and tetracosenoic acid (C24:1). Predominant FAs in mature seeds were OA (75.78%~81.39%), LA (4.85%~10.79%), PA (7.68%~10.01%), and SA (1.46%~2.97%) and OA had the least coefficient of variation among different new cultivars. Average ratio of single FA of ten artificial C. oleifera cultivars was consistent with that of wild common C. oleifera. All cultivars contained the same ratios of saturated FA (SFA) and unsaturated FA (USFA). Oil contents and FA profiles of new cultivars were not significantly affected by breeding and selection.

Drought Stress–induced Physiological and Metabolic Changes in Leaves of Two Oil Tea Cultivars

“…Oil tea, an important edible oil tree species of Camellia, along with olive (Olea europaea), oil palm (Elaeis guineensis), and coconut (Cocos nucifera), are the four major woody oil species (Yang et al, 2016). Oil tea has been cultivated for more than 2300 years in southern China (Zhuang, 2008).…”

“…Oil tea has been cultivated for more than 2300 years in southern China (Zhuang, 2008). It is known as ''eastern olive oil'' because of its high content of unsaturated fatty acids, similar to olive oil (Dong et al, 2017;Yang et al, 2016). At present, there is an urgent need to increase the selfsufficiency of edible oil in China (Dong et al, 2017).…”

“…At present, there is an urgent need to increase the selfsufficiency of edible oil in China (Dong et al, 2017). Oil tea has become a widely cultivated oil tree species in southern China because of its tolerance to barren soil and its long fruit production period (>80 years) (Yang et al, 2016). The planting area of oil tea has reached 4 million hectares, which is widely distributed in 14 provinces in southern China, mostly in Hunan, Guangxi, and Jiangxi (Li et al, 2012).…”

Physicochemical properties and antioxidant activity of oil extracted from Assam tea seeds (Camellia sinensisvar.assamica) by supercritical CO2extraction

“…Yang, Liu, Chen, Lin, and Wang () analyzed the seeds of C. oleifera containing an oil content of 41.92%–53.30% and found that the fatty acids in the seeds included palmitic acid (C16:0), palmitoleic acid (C16:1), stearic acid (C18:0), oleic acid (C18:1), linoleic acid (C18:2), linolenic acid (C18:3), eicosenoic acid (C20:1), and tetracosenoic acid (C24:1), with the content of oleic acid being the highest one (75.78%–81.39%), followed by linoleic acid (4.85%–10.79%), palmitic acid (7.68%–10.01%), and stearic acid (1.46%–2.97%). Chaiyana et al () reported that the main fatty acids of Assam tea seed oil were oleic, linoleic and palmitic acids.…”

Aluminum Stress Affects Growth and Physiological Characteristics in Oil Tea

“…Oil tea is a unique woody edible oil tree in China and is one of the four major woody edible oil crops in the world (Gao et al, 2015). The extracted camellia oil has several favorable characteristics, including high oleic acid content typically exceeding 80% with low saturated fats content, which are very healthy (Yang et al, 2016). Oil tea is mainly distributed in acid soil in southern China.…”