Chlorophyll,paste

Waxy solid. Olive to dark green, depending on the amount of magnesium incorporated. Slightly smelly. The melting point of chlorophyll a is 150～153°C, and the melting point of chlorophyll b is 183～185°C. It coexists with the yellow carotene and lutein in the chloroplasts of plant leaves. Sensitive to light and heat, it can be saponified and hydrolyzed into bright green chlorophyllin (salt), phytol and methanol in dilute lye solution, and dark green to green-brown pheophytin in acid solution. Insoluble in water. Soluble in ethanol, ether, acetone and other fatty solvents.

개요Chlorophyll is the green pigment in plants that allows them to create energy from light – to photosynthesize. Chlorophyll A and B are two major types of chlorophyll found in plants and green algae. Both are involved in the process photosynthesis. Both chlorophyll A and B are found in chloroplasts, associated with integral membrane proteins in the thylakoid membrane. The main difference between chlorophyll A and B is their role in photosynthesis chlorophyll A is the principal pigment involved in the photosynthesis whereas chlorophyll B is the accessory pigment, collecting the energy in order to pass into chlorophyll A. In chlorophyll A, the most effectively absorbing wavelengths of the spectrum are 429 nm and 659 nm, which are responsible for violet-blue and orange-red colors, respectively.

일반 설명Chlorophyll a is present as a key pigment in organisms with oxygenic photosynthesis. It functions as an antenna pigment in both reaction centers I and II.