Chlorophyll
Natural colorant, a kind of green pigment contained in higher plants and all other organisms capable of photosynthesis. Both chlorophyll a and chlorophyll b are soluble in solvents such as ethanol, ether and acetone, but insoluble in water. Therefore, chlorophyll can be extracted with polar solvents such as acetone, methanol, ethanol, and ethyl acetate.
1. Nickname: Chlorophyll B1
2. Appearance: green powder
3. Properties: insoluble in water, a/b soluble in ethanol, ether and acetone
5. Influencing factors
temperature
Some studies have shown that the degradation rate curve of chlorophyll extract has an obvious inflection point under different heating temperatures. The degradation rate of chlorophyll is slow below 80 °C, and the degradation speed is sharply accelerated above 90 °C. In general, with the increase of temperature, the rate of chlorophyll degradation is gradually accelerated, but the degradation rate is not obvious at lower temperature.
sodium copper Chlorophyllin
Using natural green plant tissues, such as silkworm dung, clover, alfalfa, bamboo and other plant leaves as raw materials, it is extracted with organic solvents such as acetone, methanol, ethanol, petroleum ether, etc., and the magnesium ions in the chlorophyll center are replaced by copper ions. It is saponified, and the carboxyl group formed after removing the methyl group and the phytyl group becomes the disodium salt. Therefore, sodium copper chlorophyll is a semi-synthetic pigment.
1. Another name: sodium copper chlorophyll, sodium copper chlorophyllin
2. Appearance: dark green powder (dark green water-soluble liquid), odorless or slightly smelly
3. Properties: easily soluble in water, the pH of the solution is 9.5~10.2, when the pH is below 6.5, it can cause precipitation when it encounters calcium. Slightly soluble in ethanol. It is easy to precipitate in acidic beverages. The light resistance is stronger than that of chlorophyll, and it decomposes when heated to above 110 °C.
4. Process flow
Raw material→pretreatment→leaching→filtration→saponification→ethanol recovery→petroleum ether washing→acidification copper generation→suction filtration washing→dissolving into salt→filtering→drying→finished product
5. Main use
food addition
Research on bioactive substances in plant foods has shown that increasing consumption of fruits and vegetables is strongly associated with a decline in diseases such as cardiovascular disease and cancer. Chlorophyll is one of the natural biologically active substances. Metalloporphyrin, as a chlorophyll derivative, is the most unique of all natural pigments and has a wide range of uses.
For cosmetics
Can be added to cosmetics as a coloring agent. Chlorophyll copper sodium salt is dark green powder, odorless or slightly smelly. The aqueous solution is transparent emerald green, which deepens with the increase of concentration, and has good light resistance, heat resistance and good stability. The pH of 1% solution is 9.5~10.2. When the pH is below 6.5, it can cause precipitation when it encounters calcium. Slightly soluble in ethanol. It is easy to precipitate in acidic beverages. The light resistance is stronger than that of chlorophyll, and it decomposes when heated to above 110 °C. Due to its stability and low toxicity, copper chlorophyll sodium salt is widely used in the cosmetic industry.
medical applications
Applied research in the medical field has bright prospects because it has no toxic side effects. A paste made from copper chlorophyll sodium salt can accelerate wound healing when treating wounds. It is used as an air freshener in daily life and clinical practice, especially in anti-cancer and anti-tumor research. Chlorophyll copper sodium salt has the effect of scavenging free radicals. The research considers adding it to cigarette filters to remove various free radicals in the smoke, thereby reducing the harm to the human body.
oil soluble chlorophyll
1. Appearance: green liquid
2. Ingredients: copper chlorophyll, tert-butyl hydroquinone, soybean oil
3. Properties: Soluble in edible oil, essential oil, propylene glycol, ethylene glycol, insoluble in water