Received: 06-04-2021 / Accepted: 05-05-2021
Spirulina (Arthrospira platensis)is a species of Cyanobacteriaand is widelycultivated for functional foods, cosmeticsand aquaculture feed due to its rich protein, pigments, vitamins, unsaturated fatty acids and trace elements. In Vietnam, Spirulinawasfirst studiedin the late 1970s, mainlyfocused oninvestigating environmentaland nutritive factors aswell asculture techniques. However, very few studies on isolation, identification and characterization of native strain have been done. With the aim of exploiting the indigenous genetic resources, a strain of Cyanobacteria distributed in Van Quan lake (Hanoi) was isolated, identified and culturedinthe medium ofHoagland, BBM, BG-11, ½ Chu-10 and Zarrouk. Bymorphological analysis using optical and electron scanning microscopy combined with 16S rRNA sequence analysis, theisolated strain was identified as Arthrospira platensis. As the results attained, except for Zarroukmedia, this speciescan grow well inin BG-11and BBMmedia. The study provided an initial scientific basis for exploiting indigenous genetic resources for functional foods, cosmeticsand aquaculture feeds.