Astaxanthin bulk powder and bulk zeaxanthin powder are two different carotenoids. Although they are somewhat similar in chemical structure. However, they differ significantly in their sources, functions, physiological effects, areas of application, and human metabolism. Carotenoids are a group of pigments widely found in plants, algae and some animals. It usually appears red, orange or yellow. These compounds not only give plants and some animals their vibrant colours, but also play an important antioxidant role in living organisms.
Chemical structure and properties
• Structure and properties of astaxanthin
Astaxanthin is a ketocarotenoid that belongs to the lutein family. Its chemical formula is C40H52O4 and its molecular weight is 596.84 g/mol. The structure of astaxanthin contains two conjugated polyene chains. At the end of the chain are two rings with polar ketone and hydroxyl groups. The unique structure of astaxanthin bulk powder gives it an extremely strong antioxidant capacity. It can effectively capture free radicals and prevent lipid peroxidation of cell membranes.
• Structure and properties of zeaxanthin
Zeaxanthin is an oxidised carotenoid, belonging to the class of luteinising hormone. Its chemical formula is C40H56O2 and its molecular weight is 568.88 g/mol. zeaxanthin's structure contains two cyclic groups. These groups are connected by a long chain polyene. Unlike astaxanthin, bulk zeaxanthin powder does not contain a ketone group, but rather two hydroxyl groups. Therefore, it has different chemical properties and biological functions.
Sources and Distribution
• Source and distribution of astaxanthin
Astaxanthin mainly exists in marine organisms. Such as red algae, krill, salmon, trout, lobster and crab. It is the main reason for the red and pink appearance of these marine organisms. Astaxanthin bulk powder can also be produced commercially through microalgae. This microalgae is one of the main sources of natural astaxanthin. For example, the red algae Rhodococcus rainieri.
• Source and distribution of zeaxanthin
Bulk zeaxanthin powder is mainly found in green vegetables and yellow fruits. Such as corn, spinach, kale and oranges. It is an isomer of lutein. It is widely found in leafy vegetables and is therefore often referred to as "phytoalexin". Because of its important role in the retina, zeaxanthin is also one of the important carotenoids in the human diet.
Functions
• Physiological functions of astaxanthin
Astaxanthin has antioxidant properties. It can neutralise free radicals and prevent cellular damage caused by oxidative stress. This will protect cell membranes, mitochondria and other cellular structures. Astaxanthin bulk powder has a wide range of applications in the prevention of cardiovascular disease, protection of the skin from UV damage, support of eye health, enhancement of immune function, and slowing down of aging.
• Physiological functions of zeaxanthin
Zeaxanthin acts in the area of eye health. It is mainly concentrated in the macular region of the retina, where it can absorb harmful blue light and prevent blue light damage to retinal cells. In addition, as an antioxidant, bulk zeaxanthin powder also reduces the damage to the eyes caused by oxidative stress and lowers the risk of macular degeneration and cataracts.
Application
• Applications of astaxanthin
Astaxanthin is widely used in nutraceuticals, cosmetics and aquaculture. In nutraceuticals, astaxanthin is used as a potent antioxidant to enhance immunity, reduce inflammation, protect cardiovascular health, and support eye health. In cosmetics, astaxanthin is used for its antioxidant and anti-inflammatory properties. It is used as an anti-aging ingredient to help reduce wrinkles and fine lines and maintain skin elasticity and moisture. In aquaculture, astaxanthin is used as a feed additive to improve the colour and quality of aquatic products.
• Application of zeaxanthin
Zeaxanthin is mainly used in eye health products and functional foods. Due to its role in preventing age-related macular degeneration and other vision problems, zeaxanthin is widely used in eye health products. In addition, zeaxanthin is added to food products to increase antioxidant properties and extend food shelf life. With the increase of consumers' health concerns, the application of bulk zeaxanthin powder in functional foods is becoming more and more promising.
Human metabolism and absorption
• Metabolism and absorption of astaxanthin
Astaxanthin, as a fat-soluble carotenoid, is dependent on the presence of dietary fat for its absorption in the body. Astaxanthin is absorbed in the small intestine through the formation of mixed micelles with bile acids, which enter the liver and are transported via lipoproteins to various tissues in the body. The bioavailability of astaxanthin is low. However, its antioxidant effect lasts longer in the body. The metabolism of astaxanthin bulk powder in the body is mainly carried out through the enzyme system in the liver, and the metabolites are excreted through urine and faeces.
• Metabolism and absorption of zeaxanthin
Zeaxanthin is also a fat-soluble substance. Its absorption process is similar to that of astaxanthin. It also requires the help of dietary fat. After being absorbed in the small intestine, zeaxanthin is mainly transported to the macular region of the eye, where it accumulates. The metabolic pathway of zeaxanthin is relatively simple. Metabolites are excreted primarily through bile. Compared to astaxanthin, bulk zeaxanthin powder has a higher concentration in the blood. In particular, the concentration is higher in the eyes and brain. This explains its important role in visual and cognitive functions.
Comparison of antioxidant capacity
• Antioxidant capacity of astaxanthin
Astaxanthin has a strong antioxidant capacity. Studies have shown that its antioxidant capacity is 550 times greater than that of vitamin E, and it is 40 times greater than that of beta-carotene. Astaxanthin can penetrate cell membranes and protect lipid membranes inside and outside cells from oxidative damage.
• The antioxidant capacity of zeaxanthin
Zeaxanthin also has a strong antioxidant capacity. Especially in the eyes. Zeaxanthin can absorb harmful blue light and reduce the damage of blue light to the retina. It also acts as an antioxidant, neutralising free radicals and slowing down oxidative stress. Although the antioxidant capacity of zeaxanthin is not as good as astaxanthin. However, its specific function in eye protection makes it an important ingredient in vision care.
Research and Development
• Current status of astaxanthin research
In recent years, research on astaxanthin has focused on its antioxidant, anti-inflammatory, anti-aging and role in cardiovascular health. A growing body of research suggests that astaxanthin bulk powder has potential in the prevention and treatment of a wide range of chronic diseases. such as heart disease, diabetes, cancer and neurodegenerative diseases. In addition, astaxanthin extract powder's use in athletic performance and recovery has attracted the attention of researchers.
• Current status of zeaxanthin research
Zeaxanthin research has focused on eye health, cognitive function, and cardiovascular health. In particular, the role of zeaxanthin in the prevention of age-related macular degeneration has been widely studied and recognised. In addition, the potential of bulk zeaxanthin powder to protect the skin from UV damage and improve skin health has also attracted the interest of scientists.
Although astaxanthin bulk powder and bulk zeaxanthin powder are carotenoids. However, there are significant differences in chemical structure, source, function and application areas. Guanjie Biotech has focused on astaxanthin bulk powder and bulk zeaxanthin powder for many years. If you want buy astaxanthin powder and bulk zeaxanthin powder, welcome to enquiry us: info@gybiotech.com.
