2.2 Antioxidant and regulating immune function
TBA method was used to study the inhibition of in vitro peroxidation of mice's liver. The study found that tea oil can effectively eliminate excited free radicals and have a significant inhibitory effect on liver lipid peroxidation. Zhang Bing et al. [14] studied the effect of tea oil and soybean oil on tissue reactive oxygen species and antioxidant enzyme activities in WISTAR rats. The results showed that the tissue reactive oxygen levels of rats fed tea oil were significantly lower than those in rats fed soybean oil, and the SOD activity of rats in the tea oil group was significantly higher than that in the soybean oil group. Feng Xiang and others studied the effects of three oil-fat tea oil, corn oil and fish oil rich in different types of unsaturated fatty acids on the immune function of mice and the effects of lipid peroxides in the body. The results showed that the three oils had obvious different effects on the immune function of mice. Combined with various immune indicators, tea oil had the strongest positive immune regulation effect. The monounsaturated fatty acids based on tea oil were the most, while fish oil had high n-3PUFA content, which was prone to lipid peroxidation, which may have an inhibitory effect on immune function.
2.3 Prevent obesity
Recent research has found that camellia oil also plays an important role in preventing postpartum obesity and ensuring the healthy growth of the fetus. Survey studies have shown that 80% of women in my country are obese after childbirth, and 20% of women are permanently obese after childbirth. Scientific research has confirmed that this is related to improper choice of edible oil and excessive intake of saturated fatty acids. Camellia oil is "polyester". After ordinary edible oil enters the human body, its undigested part will gather in the body and convert it into fat, causing obesity to induce other diseases. The monounsaturated fatty acids of camellia oil can act with the decomposition alcohol in the body, and are decomposed by carbonic acid gas to convert into energy, blocking the production of fat in the internal organs and subcutaneously, so it can effectively prevent postpartum obesity. Camellia oil is widely used in Fujian and * to regulate the body, commonly known as "school oil" and "confinement treasure".
2.4 Liver protection effect
Studies have shown that tea oil can significantly improve the nutritional status of rats with obstructive jaundice; significantly reduce the levels of serum total bilirubin (TB), direct bilirubin (DB), alanine aminotransferase (GPT) and granula transferase (GOT); enhance the activity of succinate dehydrogenase (SDH) in mitochondria of cardiomyocytes; and maintain the integrity of the mitochondrial membrane, nuclear membrane and cherry silk structure of cardiomyocytes to a certain extent. Conclusion: tea oil has a protective effect on the heart of obstructive jaundice rats in both morphological or functional.
2.5 Other health care effects
In addition to the above effects, the effects of camellia oil in folk are also summarized as follows:
Traditional effects: Tea seed oil has detoxification, anti-inflammatory, analgesic effects, and is usually caused by liver fire, sore throat, and cough. Drink 1-2 tablespoons of tea seed oil before going to bed, and it will take effect the next day.
External effects: Injury to the hands, feet and other parts of the body, break the skin, burn the water and fire, and cleft lips. Applying tea seed oil to the affected area has a good effect. Combing the hair with a little tea seed oil can make the hair more beautiful.
Cooking and baking: Tea seed oil is rich in vitamins A and E, which has antioxidant effects. Cooking or baking with tea seed oil can not only retain the original freshness of the food, but also have a fishy effect.
Frying and steaming: Tea seed oil will not change its nutrients after heating at high temperature, nor will it produce substances that are harmful to health. In addition to consumption, tea oil can be used as a raw material for making hair oil and soaps.
Foreign, the German magazine "Women" once titled "The Secret of Tea Oil" and published a major supplement that Australians use camellia oil to prevent and treat various diseases. At present, some European countries such as Germany and France use camellia oil as a medicinal product, while the United States and Japan use camellia oil in health foods. It is worth noting that essential fatty acids such as linoleic acid and linolenic acid are necessary to maintain human health, but this is by no means that the more essential fatty acids are contained in the human body, the better. Because linoleic acid and linolenic acid are both polyunsaturated fatty acids, polyunsaturated fatty acids are easily oxidized to form peroxidized lipids and accumulate on the blood vessel walls, which can cause certain damage to cells and tissues. Therefore, the intake of essential fatty acids such as linoleic acid and linolenic acid should be an appropriate proportion, and tea oil basically meets this proportion requirement. To sum up, it shows that tea oil is a nutritional value, physiological functions, etc., which exceed the quality of general oils and fats.
3. Prospects
Since camellia oil is extremely beneficial to human health, with the diminishing resources of similar products, in recent years, countries such as Japan, Australia, New Zealand and other countries have begun to pay attention to the development and application of camellia oil, and the market price has continued to rise. In Japan, the price of tea oil is 7.5 times that of rapeseed oil, and some foreign investors have offered orders of RMB 150,000 per ton. In my country's *, * and Southeast Asian countries, refined tea oil has become a hot commodity and a necessity for the elderly. In the US market, a boom in using high oleic acid vegetable oils such as camellia oil has also begun.
With the continuous improvement of living standards, people's pursuit of food nutrition and health will also continue to improve. Camellia oil, as a high-level vegetable oil rich in essential fatty acids and multiple vitamins, can change the nutritional inequality caused by a single oil, fully balance human nutrition, is beneficial to physical health, symbolizes the trend of contemporary oil consumption, is also the development direction of contemporary oil and fat, and has huge room for development.
4. Related health care mechanisms of wild camellia oil
China's wild camellia oil has the highest monounsaturated fatty acid content among all edible oils and is rich in omega diet recommended Ω-3 fatty acids. On this point, its nutritional value exceeds that of the world's most nutritious olive oil. One of the seven principles of "Omega Diet" is to choose wild camellia oil as the main edible oil, and the second is to advise people to eat less corn oil, safflower oil, etc. But it should be said that the essence of the omega diet refers to all foods that are high in monounsaturated fatty acids and are rich in Ω-3 fatty acid structure. At the same time, both of these two items are included, and as far as a single variety is concerned, China's wild camellia oil is the most important. Based on this, wild camellia oil has highlighted its role in fighting various diseases. Various scientific research has also reported on the health care effects of wild camellia oil: After ordinary edible oil enters the human body, its undigested part will gather in the body and be converted into fat, causing obesity to induce other diseases. The monounsaturated fatty acids of wild camellia oil can act with the decomposition alcohol in the body, and are decomposed by carbonic acid gas and converted into energy, blocking the production of fat in the internal organs and subcutaneously opening the door to weight loss in the human body. Wild camellia oil contains trace amounts of camellia, camellia saponins, tea polyphenols, and other active substances that are not found in olive oil. Among them, camellia glycoside has a cardiac effect, camellia saponin has a thrombolysis effect, and tea polyphenols can reduce cholesterol and prevent tumors. The elderly can benefit from eating wild camellia oil, and their constitution will become stronger and stronger. Traditional medicine has long discussed the health care effects of wild camellia oil in more detail. The ancient books "Compendium of Materia Medica" and "Comprehensive Book of Agricultural Affairs" have related records. The Chinese Pharmacopoeia (95th edition) lists wild camellia oil as a medicinal oil, which can treat hypertension and cardiovascular diseases; has good health care effects for mothers; helps the development of the baby's brain and bones; can moisturize the skin and black hair.
Wild camellia oil, together with high content of natural antioxidant components, biomin E and phytosterol, can reduce the degree of sterol in the blood and prevent sclerosis. Therefore, it has the effect of inhibiting and preventing cardiovascular diseases such as coronary heart disease and hyperemia. Deng Pingjian and others from the Guangdong Food Health Supervision Institute once observed 118 healthy men and women aged 35-55 years old for 40 days of blood lipids, and found that tea oil has a significant effect of reducing TC, triglycerides, elevating HKL-C, diastolic blood vessels and inhibiting platelet adhesion and aggregation.
Wild camellia oil is rich in vitamin B and trace elements such as calcium and zinc. It is known as the "flower of life" by medical scientists and nutritionists, and the content is 10 times that of soybean oil. Physiological functions of zinc: (1) Zinc is a component of more than 200 enzymes in the human body. (2) Promote the growth and development of the body and tissue regeneration. Zinc is important for the growth and development of the fetus. Zinc deficiency during pregnancy or even in a short period of time can also cause congenital malformations in the offspring of rats. (3) Promote appetite. (4) Zinc deficiency leads to dull taste. (5) Promote the normalization of sexual organs and sexual functions. Zinc deficiency delays sexual maturation, sexual organ underdevelopment, sexual function, sperm reduction, secondary sexual underdevelopment, abnormal menstruation or stopping. In the West, zinc is known as the "master of harmony between husband and wife". (6) Protect skin health (7) Participate in the immune function process.
Wild camellia oil is rich in vitamin E. Vitamin E is a cell regulator that can prevent tumor cell proliferation, regulate differentiation, and delay tumor occurrence. Vitamin E can be used to prevent and treat habitual miscarriage, threatened miscarriage and infertility. Medically proved that it is also an auxiliary drug for coronary heart disease, atherosclerosis, anemia, brain softening, hepatitis, cancer, etc.; because vitamin E can antioxidant, it is also a preservative for food, an anti-aging additive for health products and cosmetics. The synthetic vitamin E is not tocopherol in the strict sense, but the acetate of tocopherol, and its biological activity is far less than that of natural vitamin E. In addition, the potential harm of impurities in synthetic products to the human body makes people prefer natural vitamin E. In addition, vitamin E can help treat pregnancy hypertension syndrome (pregnancy) that threatens mother and child health. According to research from Hubei Provincial Maternal and Child Health Hospital, the serum and placental peroxide lipid content in the blood of pregnant women is significantly higher than that of normal pregnancy, and may consume too much vitamin E. In * and Fujian, women must eat wild camellia oil when they are pregnant and raising children. * people call wild camellia oil the "confinement treasure".
Wild camellia oil is rich in oleic acid up to 85%. The nutritional community calls oleic acid a "safe fatty acid". The amount of oleic acid is an important indicator for evaluating food quality. Monounsaturated fatty acids (oleic acid) can improve memory; saturated fatty acids seem to have a cumulative effect on the brain damage, and the longer it lasts, the more likely they become "stupid".
On April 20, 1999, at the annual meeting on experimental biology held in San Francisco, USA, Professor Chris Eisent of the University of Pennsylvania's experiments believed that oleic acid lowers total cholesterol and harmful cholesterol, but does not lower beneficial cholesterol. In the 1980s, the Institute of Nutrition and Food Health of the Chinese Academy of Preventive Medical Sciences conducted a survey of residents in 49 counties in my country. The oleic acid content in the red blood cell membrane was significantly negatively correlated with the mortality rate of coronary heart disease, and it was believed that the high intake of oleic acid is one of the reasons for the decrease in platelet aggregation rate. If you eat wild camellia oil rich in oleic acid for a long time, there are very few residents with coronary heart disease and cancer.
Si Shao Yufen, a professor at Shanghai First Medical University, pointed out that the study found that wild camellia oil rich in oleic acid has the effect of lowering cholesterol, triglycerides and low-density lipoprotein cholesterol in high blood lipid animals, and also has the tendency to increase high-density lipoprotein cholesterol. In terms of hemoritic rheology, it also has the effect of reducing platelet aggregation rate and increasing the deformation force of red blood cells.
Wild camellia oil is an omega-3 fatty acid food recommended for omega diet. The book "THE OMEGA DIET ◆ Longevity and Healthy Nutrition Plan" on pages 86 and 94 respectively point out that the brain is composed of fat, and 70% of the fatty acids required by the human body come from cooking oil; researchers at Mayo Clinic recommend that women pay attention to diet supplementing Ω-3 fatty acids before getting pregnant. The brain is formed in the uterus. Without sufficient supply of Ω-3 fatty acids, a healthy brain cannot be formed. Once the nervous system is formed, there is no way to repair the effects caused by the lack of Ω-3 fatty acids.
Research and demonstration on the relationship between fat and intelligence was published as early as 1975. On March 23, 1990, the World Health Organization and the Food and Agriculture Organization of the United Nations proposed a joint statement at an international conference held by the World Health Organization and the Food and Agriculture Organization of the United Nations: Given the evidence that linolenic acid is indispensable in human development and health, it is recommended that all infant food formulas and food ingredients contain linolenic acid.
Monounsaturated fatty acids (oleic acid) can improve memory; saturated fatty acids seem to have a cumulative effect on the brain damage, and the longer it lasts, the more likely they become "stupid".
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