106 This observation suggests that 173 plays a limited role in plant protection, since optimal defense theory requires that the most heavily protected parts of the plant will be those whose loss will result in the greatest loss of fitness for the individuals environment. also revealed no significance in caulerpin distribution between the branches, axes, and stolons of the plants. 106 Schwede et al., 106 although aware of exceptions both in the literature and in their own data, proposed that 173 is mostly associated with radially branched Caulerpa species found in shallow water and is absent in most deepwater species with no significant seasonal variability. 106 The Caulerpa genus has classically been divided into two major albeit tenuous groups, the frond-like bilateral leaf species, which grow below the littoral zone in relatively still water, and the radially branched species, which characteristically prefer habitats associated with the brighter shallower but turbulent littoral zone. The distribution of 173 was assessed in several species of Caulerpa collected from the coasts of Bermuda, Florida, and Tasmania. 104 Cleome serrulata yielded the first example of a troponoid-fused bisindole, which was given the trivial name caulersin ( 177) 105 ( Figure 1.15). 103 Only three naturally occurring marine analogs of 173 have been reported: the diacid 174 and monoacid 175 92 and the recently discovered halogenated caulerchlorin ( 176), all three of which were isolated from C. 89 Compound 173 has been isolated from a number of Caulerpa spp., 92–99 as well as from other green algae Codium decoratum 100and Halimeda incrassata 101 and red algae Laurencia majuscula, Hypnea concornis, Caloglossa leprieurii, 102 and Chondria armata. racemosa that led the initial investigation into this genus. Fused ring bisindoles 173– 177.Ĭaulerpa species are eaten as delicacies in some Pacific countries, 89 and it was the search for the distinctive “peppery principle” of C. It is no wonder that sea vegetable is now known as the poor man's source of cheap protein and iodine, and has an export potential for tropical countries.įigure 1.15. Their food preparations vary among European and American consumers, although salads, soups, pickles, jellies, etc. The orientals prefer Porphyra, Gracilaria, and Eucheuma the occidentals have Palmaria or ‘Dulse,’ Chondrus or ‘Irish Moss,’ and Porphyra or ‘Laver,’ to cite the more popular ones. The red sea vegetables include the greatest number of known edible species. The tender tops of Sargassum and Hormophysa are cooked with vegetables Cladosiphon and Laminaria are relished as soup preparations. Aside from their food use, the Japanese have made and marketed ‘Kombu-Cha’ – a kind of tea made out of processed Laminaria. ![]() Representing the more popular edible brown seaweeds are Hizikia, Hydroclathrus, Laminaria, and Undaria. The low incidence of goiter cases among the coastal dwellers in Asia is attributed to the high iodine intake derived from the edible seaweeds. Some people add slices of green unripe mango and crushed tomatoes to enhance the salad preparation. These, like the other brown and red seaweeds, are simply prepared as a salad with vinegar and a dash of salt. ![]() Species of Caulerpa and Codium, known in the Philippines as ‘lato’ (Visayan) and ‘pok-poklo’ (Ilokano), respectively, are the most common edible green algae among the South-east Asians. The Hawaiians were known to keep ‘Limu’ gardens containing choice edible seaweeds for the consumption of their noble families. The Chinese and Japanese are among the prolific seaweed-eating people, and are accredited with recognizing its food value. These protein- and iodine-rich marine plants, found in both cold and warm seas, have been known for their contemporary food preparations as salad, soup, pickles, jam, etc. ![]() Cordero Jr., in Encyclopedia of Food Sciences and Nutrition (Second Edition), 2003 Role of Some Species in the Diet of Selected SocietiesĮdible seaweeds come from the green, brown, and red groups of algae.
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