Komposisi Kimia Mikroalga Laut Chaetoceros gracilis

Abstract

Many factors affect the growth and chemical composition of Chaetoceros gracilis, including media and cultivation conditions. Growth media used for cultivation of C. gracilis in this study was NPSi media. Cultivation of C. gracilis conducted outdoor. This study aimed to determine fatty acids profile and the chemical components of C. gracilis. Chaetoceros gracilis contained 25,56% SAFA, 34,77% MUFA, 39,55% PUFA. C. gracilis dry biomass contained of 27% water, 25% ash, 12,1% fat, 20,27% protein and 15.63% carbohydrate. Active components contained in the dry biomass were alkaloids, terpenoids, carbohydrates, reducing sugars, and amino acids. Calsium was the highest mineral contained in C. gracilis.