Table 7.
LC-MS analysis and database search of main peaks in chloroform extract of Bryopsis pennata (Bryopsidales: Bryopsidaceae).
| No | Rt (min) | Accurate Mass | Possible Molecular Formula | Possible Hits from Database | Type of Compound and Biological Source (Order: Family) |
|---|---|---|---|---|---|
| 1 | 8.4 | 326.1923 | C19H34O4 | No hits | |
| 2 | 8.8 | 370.2187 | C22H14N2O4 | Caulerpinic acid | Alkaloid of green seaweed Caulerpa racemosa (Bryopsidales: Caulerpaceae) |
| 3 | 9.1 | 414.2442 | C29H50O | Sitosterol | Steroid of green seaweed Bryopsis plumose (Bryopsidales: Bryopsidaceae) |
| 4 | 9.4 | 340.2079 | C16H21BrO3 | Hydroxycymopochromenol | Meroterpenoid of green seaweed Cymopolia barbata (Dasycladales: Dasycladaceae) |
| 5 | 9.7 | 384.2342 | C23H16N2O4 | Monomethyl caulerpinate | Alkaloid of green seaweed Caulerpa racemosa (Bryopsidales: Caulerpaceae) |
| 6 | 10.0 | 428.2604 | C29H48O2 | Decortinol | Steroid of green seaweeds Codium decorticatum and Codium arabicum(Bryopsidales: Codiaceae) |
| 7 | 10.2 | 472.2874 | C29H44O5 | No hits | |
| 8 | 10.4 | 516.3135 | C34H60O3 | Botryolin A and B | Triterpenoid of microalga Botryococcus braunii (Trebouxiales: Botryococcaceae) |
| 9 | 10.8 | 302.183 | C20H30O2 | 2,6,10,14-Phytatetraene-1,20-dial | Diterpenoid of green seaweed Caulerpa brownie (Bryopsidales: Caulerpaceae) |
| 10 | 11.1 | 346.2087 | C22H34O3 | 2,6,10,14-Phytatetraene-1,20-diol, Variant: (2E,6E,10E)-form, Derivative: 1-Aldehyde, 20-Ac | Diterpenoid of green seaweed Caulerpa brownie (Bryopsidales: Caulerpaceae) |
| 11 | 15.8 | 444.2243 | C29H48O3 | 7-Hydroperoxystigmasta-5,25-dien-3-ol | Steroid of green seaweed Codium arabicum (Bryopsidales: Codiaceae) |
| 12 | 16.3 | 768.4909 | C43H60O12 | No hits | |
| 13 | 21.7 | 466.3487 | C22H42O2S4 | Bis-(3-oxoundecyl) tetrasulfide * | Unbranched alkenic ketone of brown seaweed Dictyopteris spp.(Dictyotales: Dictyotaceae) |
| 14 | 23.0 | 278.1494 | C17H26O3 | 4-Hydroxy-2-[2-(2,6,6-trimethyl-2-cyclohexen-1-yl)ethyl]-2-buten-1-al, Derivative: Ac | Sesquiterpenoid of green seaweed Caulerpa flexilis (Bryopsidales: Caulerpaceae) |
| 15 | 24.4 | 921.0025 | C54H83NO11 | No hits | |
| 16 | 34.9 | 390.2742 | C21H26O7 | 10,11-Epoxycaulerpenyne | Sesquiterpenoid of green seaweed Caulerpa taxifolia (Bryopsidales: Caulerpaceae) |
| 17 | 35.4 | 390.2749 | C24H38O4 | Trifarin | Diterpenoid of green seaweed Caulerpa flexilis (Bryopsidales: Caulerpaceae) |
* Suggested compound for peak 13 of chloroform extract LC-MS profile and peak ii of fraction A7 LC-MS profile.