Page 280 - Advances in Eco-Fuels for a Sustainable Environment
P. 280

Ecofuel conversion technology of inedible lipid feedstocks to renewable fuel  243


            Table 9.2 Chemical compositions for high lipid content microalgae (% dry matter) a

                                                                 Carbohydrate
            Microalgae      Lipid content (%)  Protein content (%)  content (%)
            Botryococcus    86                4                  20
            braunii
            Chlamydomonas   21                48                 17
            rheinhardii     55                10–52              10–15
            Chlorella       14–56             51–58              12–17
            protothecoides
            Chlorella       16–40             8–18               21–52
            vulgaris
            Scenedesmus     35–55             50–56              10–17
            dimorphus
            Scenedesmus     11–21             6–20               33–64
            obliquus
            Spirogyra sp.   33                44–65              11–19
            Chaetoceros     9–14              28–39              40–57
            muellerii
            Porphyridium    14–20             39–61              14–18
            cruentum
            Euglena gracilis  21–38           30–45              7–25
            Isochrysis      22–38             28–45              25–33
            galbana Parke
            Prymnesium
            parvum
            a
            [34, 40].

                      Table 9.3 Lipid content of various microalgae a


                      Microalgae strains           Lipid content (%)
                      Auxenochlorella protothecoides  32.9–39.3
                      Botryococcus braunii         14–75
                      Chlamydomonas rheinhardii    21
                      Chlorella sorokiniana        19
                      Chlorella spp.               10.5
                      Chlorella vulgaris           14–26
                      Scenedesmus dimorphus        16–40
                      Scenedesmus obliquus         12–14
                      Spirogyra sp.                11–21
                      Spirogyra orientalis         21
                      Navicular minima             16.2
                      Euglena gracilis             14–20
                      Gymnodinium sp.              29.6
                      a
                      [39].
   275   276   277   278   279   280   281   282   283   284   285