Haematococcus pluvialis is a freshwater microalgae rich in astaxanthin. Under natural conditions, when the environment is harsh, Haematococcus pluvialis will form a thick shell and accumulate a large amount of astaxanthin to protect itself from the external environment.
Classification knowledge of Rhodococcus rainbowensis: It belongs to Chlorophata, Chlorophyceae, Volvocales, Haematococcaccae, Haematococcus. To reiterate some easy to be misunderstood: (1) it is a green algae, not red algae; (2) strictly according to the translation of the Latin species name, it should be called rain-grown hemocyanobacteria.
Astaxanthin is an antioxidant that Rainy Hematococcus accumulates in harsh environments to protect cells from free radical damage. Astaxanthin is considered to be a very promising natural antioxidant and beauty ingredient, and has been widely used in the fields of health products, cosmetics and food.
Currently, astaxanthin is mainly obtained by extracting it from red algae. Due to the slow growth rate, high production cost and low extraction efficiency of red algae, astaxanthin's production and commercialization have been limited. Therefore, researchers are also currently looking for alternatives to astaxanthin from other sources, such as astaxanthin extracted from barley wakame and tomato.
Astaxanthin is a red pigment that gives salmon, shrimp and flamingos their pink color. Its chemical structure is similar to that of beta-carotene (found in carrots) and vitamin A. Astaxanthin is part of the carotenoid group. Astaxanthin is produced by several species of algae and plankton. A number of aquatic species, including shrimp, and crustaceans consume these algae and plankton and then store this pigment in their shells, giving them a pinkish appearance. These crustaceans are in turn preyed upon by fish (salmon, trout) and birds (flamingos, vireos), which then store the pigment in their skin and fatty tissue. This is what gives salmon and some other animals their red color. Astaxanthin is not bleached, so these animals retain their red coloration in their signs.
The culture conditions for Rainy Red Chlorella, a microalgae rich in astaxanthin, include the following:
Light conditions: Rainy red algae need sufficient light to photosynthesize and produce energy and nutrients. Usually daylight or artificial light source is used, requiring light intensity between 6000-10000 lux, light time is 12-16 hours/day.
Temperature conditions: the suitable growth temperature range of red algae is relatively narrow, generally between 20-25 ℃. Too low or too high temperature will affect its growth rate and astaxanthin content.
Water quality conditions: Cultivation of Rhodococcus rainbowensis requires the use of sterile or low-bacteria water sources, such as pure water, distilled water or deep groundwater. At the same time, the concentration of organic matter and inorganic salts in the water quality needs to be controlled within a suitable range.
Stirring conditions: Appropriate stirring can promote photosynthesis and the dispersion of nutrients evenly in red algae rainbow to ensure its growth balance and stability.
It should be noted that the cultivation of Rhodococcus rainieri needs to pay attention to the prevention of pollution and cross-infection, and at the same time, the cultivation conditions need to be regularly monitored and adjusted in order to obtain a higher yield and astaxanthin content.
In the field of health care products, astaxanthin is widely added to health care products as it is believed to have the effects of preventing cardiovascular diseases, enhancing immunity and antioxidant.
In the field of medicine, the antioxidant effect of astaxanthin is widely used in the treatment of eye diseases, skin diseases, cancer and many other diseases. Astaxanthin has also been used in research on regulating blood lipids, lowering cholesterol and improving memory.
In the field of cosmetics, astaxanthin can be used for whitening, anti-wrinkle, moisturizing, anti-inflammatory, repair and many other effects.
Post time: Jan-21-2024