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Camellia oleifera
About: Camellia oleifera is a research topic. Over the lifetime, 1516 publications have been published within this topic receiving 7347 citations.
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TL;DR: The results indicate that both compounds isolated from tea seed oil exhibit remarkable antioxidant activity.
Abstract: The oil of tea seed (Camellia oleifera Abel.) is used extensively in China as cooking oil. The objectives of this study were to investigate the antioxidant activity of tea seed oil and its active compounds. Of the five solvent extracts, methanol extract of tea seed oil exhibited the highest yield and the strongest antioxidant activity as determined by DPPH scavenging activity and Trolox equivalent antioxidant capacity (TEAC). Two peaks separated from the methanol extract by HPLC contributed the most significant antioxidant activity. These two peaks were further identified as sesamin and a novel compound: 2,5-bis-benzo[1,3]dioxol-5-yl-tetrahydro-furo [3,4-d][1,3]dioxine (named compound B) by UV absorption and characterized by MS, IR, 1H NMR, and 13C NMR techniques. Sesamin and compound B decreased H2O2-mediated formation of reactive oxygen species in red blood cells (RBCs), inhibited RBCs hemolysis induced by AAPH, and increased the lag time of conjugated dienes formation in human low-density lipoprotein. The results indicate that both compounds isolated from tea seed oil exhibit remarkable antioxidant activity. Apart from the traditional pharmacological effects of Camellia oleifera, the oil of tea seed may also act as a prophylactic agent to prevent free radical related diseases.
235 citations
TL;DR: The results of this study show that a tea seed oil diet can be proposed to protect the liver against CCl(4)-induced oxidative damage in rats, and the hepatoprotective effect might be correlated with its antioxidant and free radical scavenger effects.
211 citations
TL;DR: The foam properties and detergent ability of the saponins from the defatted seed meal of Camellia oleifera and Sapindus mukorossi were investigated and indicated that the crude saponin extract has moderate detergency.
Abstract: The defatted seed meal of Camellia oleifera has been used as a natural detergent and its extract is commercially utilized as a foam-stabilizing and emulsifying agent. The goal of this study was to investigate the foam properties and detergent ability of the saponins from the defatted seed meal of C. oleifera. The crude saponin content in the defatted seed meal of C. oleifera was 8.34 and the total saponins content in the crude saponins extract was 39.5% (w/w). The foaming power of the 0.5 crude saponins extract solution from defatted seed meal of C. oleifera was 37.1 of 0.5 SLS solution and 51.3% to that of 0.5% Tween 80 solution. The R5 value of 86.0% represents good foam stability of the crude saponins extracted from the defatted seed meal of the plant. With the reduction of water surface tension from 72 mN/m to 50.0 mN/m, the 0.5% crude saponins extract solution has wetting ability. The sebum-removal experiment indicated that the crude saponins extract has moderate detergency. The detergent abilities of the saponins from C. oleifera and Sapindus mukorossi were also compared.
151 citations
TL;DR: Results showed that highFat or large seeds are harvested more quickly than small or medium seeds with high tannin concentration, and that high fat or large Seeds are also more likely to be removed than small Orkney Islands seeds withhigh tannIncome traits are shown to be important in determining whether a given seed is eaten or removed when rodents are provided uniform number of seeds with differing traits.
115 citations
TL;DR: In this paper, the authors analyzed Camellia oleifera seeds from the cultivars LCDG, YAYC, and CR3 for their amount of 14 different fatty acids (unsaturated, monounsaturated, polyunsaturated and saturated).
Abstract: Camellia oleifera originates from China and is important for the economy of southern China. Seeds from the cultivars LCDG, YAYC, and CR3 of Camellia oleifera were analyzed for their amount of 14 different fatty acids (unsaturated, monounsaturated, polyunsaturated, and saturated). In contrast to former investigations additional kinds of fatty acids could be isolated from Camellia oleifera seeds: The composition of this oil is very similar to olive oil, comprising 67.7–76.7 % oleic acid, 82–84 % unsaturated fatty acids, 68–77 % monounsaturated fatty acids, and 7–14 % polyunsaturated acids. Moreover, Camellia oleifera oil has many advantages to rapeseed oil, peanut oil, soybean oil, safflower seed oil, and especially pig oil.
114 citations