Chlorophyll is a good natural pigment and has a wide range of uses in medicine. Natural chlorophyll is mostly extracted from silkworm sand, daisies, spinach, and green algae, and bamboo leaf extraction has not yet been developed. The content of chlorophyll in bamboo leaves is high. Each hundred grams of fresh bamboo contains 400-500 mg of chlorophyll, and is rich in vitamin C, amino acids, leaf protein and minerals. The total area of ​​existing bamboo forests in China is more than 50 million mu, and about 30 billion bamboos. The amount of chlorophyll lost in bamboo leaves is more than 200,000 tons each year based on 2 kg of bamboo leaves for bamboo regeneration. Therefore, the extraction of chlorophyll from bamboo leaves has great practical significance and broad prospects. The process of extracting chlorophyll from bamboo leaves is as follows: 1. Production equipment and raw material equipment: masher, agitator, reaction kettle or large water tank, vacuum concentrator; raw materials: fresh bamboo leaves, edible alcohol, etc. Second, the production process 1, bamboo leaf collection and storage: bamboo leaf collection is generally carried out in the summer, the storage period of not more than one week is appropriate. 2, the extraction process: first chopped and washed with water after the filter residue with 6 times the amount of edible alcohol impregnated, stirrer, and then in the reactor or large water tank for the first extraction (extraction time is half an hour), Leach and filter, the filtrate is used to extract chlorophyll, and the filter residue is extracted a second time. The second extraction also used 6 times the amount of alcohol, the filtrate was used for the first extraction, and the filter residue was extracted for the third time. Four extractions were performed in this way. The total time spent on each batch of leaves was 2 hours and the extraction rate was 95%. 3. Vacuum Concentration: Use a vacuum concentrator to distill out alcohol at a low temperature (generally the temperature should be lower than 45°C), and extracts with a chlorophyll content of more than 13% can be obtained. If spray drying is used, a powdered product can be obtained. 4. Filter residue treatment: The filter residue after extracting chlorophyll (including the first step of washing the filtrate) contains a large amount of leaf protein, minerals and vitamins, which can be used as feed. 5, product purification, application and inspection: (1) saponification of chlorophyll and copper sulfate reaction available copper sodium chlorophyll. This is an important pharmaceutical raw material, which can be used to make "Stomach Immortal U", "Living Po", "Liu Bao Bao", "Stomach Gan Green" and so on. If used for the production of toothpaste and hair cream, it has the effect of inhibiting bacteria, removing bad breath and preventing gum bleeding. Due to its stable color in neutral, acidic, and alkaline solutions, it is also commonly used as a pigment for cans and alcoholic beverages. It is currently the main species of chlorophyll, and the price per kilogram is about 200 US dollars. (2) Phthalocyanine methyl ester can be prepared by removing phytol and magnesium in chlorophyll with hydrochloric acid. The product has the functions of promoting tissue healing, anti-microbial, liver protection, anti-mutagenicity and the like, and has a strong killing effect on cancer cells. (3) Chlorophyll can also produce copper chlorophyll and sodium iron chlorophyllin. These products are used in colorants and deodorizers, and can be used in combination with bactericides such as benzalkonium, haloban, etc., and as deodorant cosmetics, and used in the coloration of soaps, mineral oils, waxes, and essential oils. (4) The chlorophyll test is generally performed by spectrophotometry. The absorbance of the chlorophyll test is compared with the pure product by a spectrophotometer and the purity can be determined. Third, the operating points 1, summer bamboo leaves more tender and easy to extract chlorophyll. However, due to the decomposition of chlorophyll under the action of chlorophyll hydrolase, organic acid and oxygen in the air, bamboo leaves should not be stored for a long time, and the storage period should be less than 7 days. After picking, the bamboo leaves are stored or stored in a well-breathed woven bag to avoid blocking to prevent yellowing, browning, and mildew. 2. The following optimum conditions were obtained through orthogonal experiments: at 20°C (or room temperature), the material ratio of edible alcohol to bamboo leaves was 6 (L:kg), each stirring was performed for 0.5 hour, and extraction was repeated 4 times. . This reverse extraction process is mainly used to reduce solvent losses and recover energy consumption. 3. To make the obtained chlorophyll extract have a longer shelf life, a small amount of sodium benzoate can be added as a preservative and protected from light and cold. 4, to pay special attention to prevent the loss of volatile alcohol consumption, which is the key to the practical value of this process.
Amy Hookah,Stainless Steel Hookah ,Zinc Alloy Hookah
Hookah,Glass Hookah Co.,LTD , http://www.china-shisha-hookah.com