Palmaria palmata (seaweed)

Nomenclature

Palmaria palmata (L.) Kuntze   Palmariaceae  
Syn. Rhodymenia palmata (L.) Grev.  
Standardized common name (English): dulse

Microscopic Characteristics

Epidermis of the thallus showing highly contoured surface and pink glandular material of Palmaria palmata when viewed at 400x with Acidified Chloral Hydrate Glycerol Solution. Source: Elan M. Sudberg, Alkemist Laboratories	Parenchyma cells of the thallus showing pink pigmentation of Palmaria palmata when viewed at 400x with Acidified Chloral Hydrate Glycerol Solution. Source: Elan M. Sudberg, Alkemist Laboratories

High Performance Thin Layer Chromatographic Identification

Palmaria palmata HPTLC ID - 10% Ethanolic H2SO4 ->115° C 15 min -> UV 365 nm Dulse (seaweed) (Palmaria palmata) Lane Assignments Lanes, from left to right (Track, Volume, Sample): 15 μL Fucoxanthin ~0.1% in CH3OH 5 μL Palmaria palmata-1 (seaweed) 5 μL Palmaria palmata-2 (seaweed) 5 μL Palmaria palmata-3 (seaweed) 5 μL Palmaria palmata-3 (seaweed) 5 μL Palmaria palmata-4 (seaweed) 5 μL Palmaria palmata-5 (seaweed) 15 μL Fucoxanthin ~0.1% in CH3OH Reference materials used here have been authenticated by macroscopic, microscopic &/or TLC studies according to the reference source cited below held at Alkemists Laboratories, Costa Mesa, CA.  Stationary Phase Silica gel 60, F254, 10 x 10 cm HPTLC plates  Mobile Phase cyclohexane: ethyl acetate: propionic acid [6/3.8/0.2]  Sample Preparation Method 0.3 g + 3 ml 80% CH3OH sonicated + heated @ 50° C ~ 1 hr  Detection Method 10% Ethanolic H2SO4 ->115° C 15 min -> UV 365 nm  Reference see Adapted from Pharmacognosy Phytochemistry Medicinal Plants, Bruneton, J. 1995 Source: Elan M. Sudberg, Alkemist Laboratories