Research of Chemical Components of Some Seaweed Species in Con Co Island – Quang Tri Province

Abstract

ABSTRACT11 samples of 8 seaweed families were collected at Con Co -Quang Tri and determined of the chemical compositions. The analysis results showed that these seaweed samples in Con Co contain high content of trace elements and low content of heavy metals. Many samples have good lipid quality to meet the requirements of safe food, as well as being good for the human health (such as CC1, N9, N4, and N6 samples). Especially, some seaweed samples were found to contain long-chain fatty acids with many double bonds presenting high bioactivity in their lipid composition, such as C20: 4n-6 (AA) up to 22.35% (Hypnea flagelliformis Grev., sample N6), C20: 5n-3 (EPA) 16.36 % (Grateloupia lithophila, sample N9), C22: 6n-3 (DHA) 1.07 % (Hypnea esperi, sample N2), C22: 5n-3 (DPA) 1.82% (Liagora spl., samples N4).