Hope to bring you a preliminary answer:
Camellia oil, tea seed oils, tea tree oils, camellia oil. is obtained from Camellia (Camellia) Camellia (Camellia oleifera Abel) tree seed, is one of China's oldest woody edible vegetable oil. China is the world's most widely distributed camellia species, Is the world's largest production base of Camellia oleifera, mainly concentrated in Zhejiang, Jiangxi, Hunan, Guangxi Four provinces, to Hunan most, in addition, only Southeast Asia, Japan and other state-owned very small distribution [1]. Camellia Oleifera in China mainly has the following several, ordinary Camellia, about 98% of the total area of Camellia oleifera, The second is distributed in Zhejiang Province, safflower Camellia Oleifera, Guangdong province Nanshan Tea, Yunnan province Tengchong Safflower Camellia and so on. Camellia oil, which is refined with the tea seed as raw material, the color is light yellow, clear and fragrant. It is good edible grease. Because of its high quality and unique flavor, it has been widely popular in China for thousands of years. In foreign countries, in recent years, after analysis, found that the fatty acid composition of tea oil and Europe and the United States developed countries preferred edible oils- , oleic acid, linoleic acid content in more than 80%, so more and more attention to tea oil, considered to be an important commercial value of the Oriental oil, therefore, to strengthen the nutritional composition of camellia oil and health care role of research, to develop China's edible health-care oils resources have important significance.
The composition and biochemical characteristics of camellia oil
1.1 Physical and chemical properties
The following is a comparison between the physical and chemical properties of camellia and olive oil
Relative density refractive index solidification point FA solidification Point iodine value saponification of soap
Kind (25/4℃) (2o℃) (℃) (℃) (I2g/loog oil) (mgkoh/g oil) (%)
Camellia oil 0.910-0.192 1.467-1.469-10--5 20-22 83-89 193-196 less than 1.0
Olive oil 0.918-0.919 1.464-1.473-3-7 17-26 75-88 185-196 less than 1.4
The physical, chemical properties of camellia oil are very similar to olive oils (see table 1), only olive oil has a unique yellow-green color and special flavor, relative to olive oil, camellia oleifera content is very small, relatively easy to absorb digestion. In addition, Camellia oil also contains no biological active substances such as Camellia glycosides, Camellia saponin, Tea polyphenols, such as Camellia glycosides have strong heart role, Camellia Saponin has thrombolytic effect, and tea polyphenols have a lower cholesterol, chemical prevention of tumors and many other effects.
1.2 Fatty acid composition
Analysis of the fatty acid composition of camellia oil and several edible oils can be found (see table 2), it is very similar to the fatty acid composition of olive oil, it mainly consists of oleic acid and linoleic acid and other unsaturated fatty acids, total content accounted for about 90%, and saturated fatty acid content is generally around 10%, mainly by palmitic acid (7%~9%) and stearic acid (1% ~3%) composition. Compared with other edible oils, camellia oil and olive oil, monounsaturated fatty acids-the content of oleic acid is the highest in all vegetable oils, the other saturated fatty acids and polyunsaturated fatty acids content is relatively small. We know that the high saturated fatty acids in edible oils are likely to cause high blood lipids, cardiovascular disease, However, the imbalance of polyunsaturated fatty acids in the ratio of 3 to omega 6 can cause all kinds of diseases and sub-health [3]. Therefore, camellia oil and olive oils have their unique ingredient advantages, for other edible oil can not be replaced.
The following is a comparison of fatty acid compositions of several edible oils
Project composition (%) Camellia oil, peanut oils, olive oil
Unsaturated fatty acid oleic acid 78.3-83.3 70-85 41.2 15.8
Unsaturated fatty acid linoleic acid 7.4 7 37.6 14.6
Unsaturated fatty acid linolenic acid 0.4 0-0.1--9.2
0.3 0.5 —— —— saturated fatty acid cardamom
Saturated fatty acid palmitic acid 8.5 10 11.4 2.3
Saturated fatty acid stearate 0.8 1-3 3--
Saturated fatty acid peanut acid 0.6 0-1 0.6--
Second, the health function of Camellia oil
Many ancient physic also recorded Camellia oil's edible and medical double function. Li Shizhen's "Compendium of Materia Medica": "Tea seeds, bitter cold incense poison, attending to cough, go to the disease ..." in the Book of agricultural administration, tea oil can be used to cure hemorrhoids, back to damp and humid records; "The Compendium of Materia Medica," said, tea oil can be embellish, clear stomach, detoxification sterilization; "farm-dwelling diet" In the "Tea oil run dry, heat, interest and the leader of the Lee" "with the rest of the diet spectrum of tea oil is praised," tea oil cooking 肴馔, daily necessities, steamed cooked food, ze light, the oil is the most light, so the disease is not taboo. " It is obvious that our ancestors early on tea oil as longevity and beauty cosmetics jiapin.
2.1 Improve blood circulation and reduce blood lipid
The American Heart Association in the study of modern diet found: South China, especially in Guangxi Bama, Jiangxi Wuyuan residents of the lowest cardiovascular disease mortality, in the history of the village of longevity. Finland and the United States are the highest. The only significant difference is in the type of fat the residents ingest. Modern Medical certificate: Rich in monounsaturated fatty acid tea oil in the prevention and treatment of cardio-vascular sclerosis disease, regulate a variety of cholesterol, blood lipids, reduce platelet aggregation rate, reduce the chance of cancer, reduce thrombosis and atherosclerosis plaque formation of the risk, regulating the body function and so on have obvious effect. Report Tea oil on atherosclerosis (AS) Formation and lipid metabolism, effects of thrombotic B, (TXB2) and lipid peroxide (LPO). The results show that camellia oil has obvious effect on delaying as formation, and its mechanism may be that the mufa of Camellia oil is rich in the tissue, by lowering the ratio of blood lipid, liver fat, and increasing HDL-C/TC, Inhibition of TXB2 release, increase the activity of antioxidant enzymes sod and gsh-px, reduce plasma, liver LPO formation and other aspects of the role. 20th century the 8O years some reports pointed out [8-10], single unsaturated fatty acid (mainly oleic acid) has the function of decreasing serum TC and TG, and for normal people, the effect of linoleic acid is the same. For patients with hyperlipemia, oleic acid and linoleic acid have the same degree of reduction. Deng etc [11] studies show that Tea oil can reduce serum total cholesterol (TC) and significantly reduce serum triglyceride (TG) content in rats. There was no significant effect on the weight of rats. Wang Ping Togo et. [12] The effects of tea oil on blood lipid and platelet function in rabbits and rats were reported, and the results showed that the serum cholesterol (TC) and low density lipoprotein cholesterol in Camellia oil Group ( LDL-C) was significantly lower than the coconut oil group, and the ratio of high-density lipoprotein cholesterol (hdl-c)/TC was significantly higher than that of other
Two groups (safflower oil and coconut oil group).
Current 1/2 page
12 Next read the full text
