Bamboo Leaf Extract
Bamboo leaf has a long history of food and medical application in China,and has recently been listed by Ministry of Health PRC into the list of natural plants with dual-purposes as food and drug.According to the related research work,effective ingre-dients of bamboo leaf extract include flavone,phenolic acid,lactone,polyose,amino acid,microelements,etc,with enhanced effects of anti-radical and blood vessel disease,protecting liver,expansion of blood capillary, smoothing microcirculation,improving retentive faculty,improving sleep quality,anti-cancer and skin beautifcation.In the Second International Natural Antioxidant Meeting supported jointly by seven specilized institutions including UNESCO,International Free Radical Research Association,China Free Radical Biology and Medicine Association and others,many experts claimed their findings of positive impacts raised by this exact against the toxicity toward bone marrow caused by anticancer drugs,on microcirculation and blood platelet functions of coronary heart disease sufferers,and on the blooding of cardiac muscle.
Ever since the development of bamboo leaf flavonoid product and its putting into mass production,it has raised the attention of state authorities,and international and domestic acientific circles due to its well recognized positive impacts on the health and longevity of human beings.Japanes scientists have discovered that the interal structure of bamboo leaf flavonoid is similar to that of hemoglobin of human being,and believe that the product can be prepared in injection to improve its effectiveness.
It is generally known that bamboo leaf flavoniod is very safe without any toxicity.On the contrary,gingko leaf contain a certain amount of ginkgolic acid,which is harmful to human being and must be eliminated.Up to now, no such kind of harmful or poisonous elements have being discovered in the components of bamboo leaf,and it enjoys a higher safty level than gingko leaf.According to the toxicological test conducted by Zhejiang Academy of Medical Sciences,the small rats used in test took orally LD 50 bamboo leaf exact with a density of over 10g of every 1kg body weight,and the test proves that the extract is nontoxic.The results of micronucleus test,sperm malformation test and Ames test are all positive.The acute toxicity test on big rats proves also the extract is nontoxic.After being fed various dosagesfor continuously 30 days,big rats have not presented any untoward effect,leading to the conclusion that the safty dosage is as high as 5.0g of every 1kg body weight.
Bamboo leaf extract presents also very good technical features,as it is easy to dissove in hot water and low-density alcohol with high thermal and water stability,processing flexibility,and high oxidation prevention stability.Even and unfavorable condition that the local concentraction far exceeds the limit,there shall be no oxidation promotion effects,which occurs generally in tea polyphenols.Moreover,the extract carries with it the original faint scent of bamboo,and a favorable and refreshing taste with little sweetness and bitterness.It can be used widely in the production of drug,food,anti-aging products,cosmetics and feeding stuff.
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