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In Traditional Chinese Medicine (TCM), bird's nest is considered as having a neutral (neither hot nor cold) energetic property with special influence on the lungs, kidneys and stomach. It is traditionally known that bird's nest with whiter appearance is superior for the lungs, having the ability to reduce phlegm, while those orange-reddish ones are excellent for skin problems.
Bird's nest is a superior health food in many ways. The proteins found in bird's nest, being easily digestible, can be used for convalescing (recovering from serious illness) patients. It is also widely consumed during pre and post-natal periods. For beauty care, it has been used to reduce or eliminate liver spots in the elderly, improve complexion and manage skin irritations in babies and adults.
Eu Yan Sang Imperial Golden Concentrated Bird's Nest with Rock Sugar is specially prepared from wholesome, premium grade bird's nest, which has been carefully selected and processed to preserve its natural qualities. It is ready-to-drink and suitable for consumption by all ages and can be taken chilled or warm.
Water, Sugar, Bird's Nest
Bird's Nest is the nutrient-rich salivary secretion of swiftlets. This gel secretion is an integral component to building the swiftlet nests, which are found in dangerous and highly inaccessible locations like steep cliffs, overhanging crags and deep caves.
Out of more than 30 species of swiflets, only 2 species of the genus Aerodramus and 1 of the genus Collocalia make edible saliva nest. Aerodramus fuciphaga is the swiftlet that produces the highest quality of edible Bird’s Nest, because its nests are white and clean with minimum feathers. It is found only in Southeast Asia. Tedious process of cleaning approximately 10 nests takes approximately 8h by a person1.
The major components of EBN are its glycoproteins, carbohydrates and trace elements. Scientific findings by the researchers in Chinese University of Hong Kong discovered that epidermal growth factor (EGF) is present in EBN. They demonstrated an epidermal growth factor (EGF)-like activity in aqueous extract of edible bird’s nest that stimulated the DNA synthesis in 3T3 fibroblast in a dose dependent manner in vitro2. EGF is a low-MW polypeptide, which stimulates cell growth and proliferation, demonstrating properties of skin and tissue repair.
Major carbohydrates consist of sialic acid (9%), N-acetylgalactosamine (galNAc) (7.2%), N-acetylglucosamine (glcNAc) (5.3%), galactose (16.9%) and fucose (0.7%). There had been studies showing that sialic acid aids in moderating the immune system receptors, preventing entry of bacteria and viruses. The carbohydrate also benefits the brain development of infants3. The other carbohydrate components present demonstrate important roles in signal transduction in cellular communication.
The most abundant amino acids are serine, threonine, aspartic acid, glutamic acid, proline, and valine1, 4.
1. MF Marcone. Characterization of the edible birds’ nest- the “Caviar of the East”. Food Research Intl 2005, 38; 1125-1134
2. YC Kong, WM Keung et al. Evidence that epidermal growth factor is present in swiftlet’s (Collocalia) nest. Comparative Biochem and Physiology Pt B: Comparative Biochem 1987, 87(2): 221-226
3. AA Rashed, WM Wan Nazaimoon. Effect of Edible Bird’s Nest on Caco-2 Cell Proliferation. J Food Tech 2010, 8(3); 126-130
4. RH Kathan, DI Weeks. Structure studies of collocalia mucoid ☆: I. Carbohydrate and amino acid composition. Arch Biochem and Biophysics 1969, 134(2): 572-576
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