Eucheuma and Kappaphycus : taxonomy and cultivation

概要

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The Genera Eucheuma, Kappaphycus and Hypnea are three important genera of carrageenophytes which are abundant in the Philippines and in the tropical Asia and Western Pacific. The most useful species for the source of kappa carageenan is K. alvarezii called E. "cottonii" of commerce. E. denticulatum called E. "spinosum" of commerce is also the most useful species for the sources of iota carrageenan.The different methods of Eucheuma cultivation were tried in the past from very simple bottom culture to the more sophisticated types using some form of a support system, such as the raft method, the fixed off-bottom- (net) method, tubular net method and the fixed off bottom monoline method. Recently the floating method of culture are used in area where water current is weak.At present Encheuma and kappaphycus are exported in four form, as dried raw seaweeds, as alkali-treated chip or as a semi-processed powder and as pure carrageenan.
高知大学海洋生物教育研究センターの論文
1992-07-31