Analysis of Composition and Contents of Free Amino Acids and Free Sugars of Akebia quinata Fruit Extracts as Skin Care Cosmesutical Ingredients

Abstract

This study analyzed pericarp of Akebia quinata fruit and hot water extract of seeds and 80% methanol extract to verify the effectiveness of utilizing functional cosmetic materials for skin care. 17 components of free amino acids were identified in pericarp and seeds. Both pericarp and seeds had the highest lysine content in hot water extracts and asparagine in 80% methanol extracts. Protein-free amino acid derivatives were identified in pericarp and seeds, each with 5 components. In the hot water extract, phosphoserine was the highest in pericarp and citrulline was the highest in seeds. In 80% methanol extract, carnosine was the most common in pericarp and citrulline was the highest in seeds. Analysis of the composition of free sugar identified frutose and glucose in pericarp and sucrose and maltose in seeds. As a result, when pericarp and seeds of Akebia quinata fruit are extracted with hot water and 80% methanol, free sugar and free amino acid derivatives are present, which is expected to be valuable as functional foods and nutritional cosmetics ingredients for skin beauty. Keywords: A. quinata fruit extract; Derivatives; Free amino acid; Free sugar; Skin care cosmetic