KADAR ALGINAT RUMPUT LAUT YANG TUMBUH DI PERAIRAN LAUT LOMBOK YANG DIEKSTRAK DENGAN DUA METODE EKSTRAKSI
ABSTRACT: Many researchers
reported that seaweeds are important sources of alginate. This article reports
on alginate content of seaweeds grown in coastal zone of Lombok extracted by
two methods. The seaweeds were collected
at several sampling points in coastal zone of Lombok, identified and analyzed
their alginate content. The result shows that there were no significant
different in alginate content of samples extracted using both procedures.
However, only the brown species produced alginate. The alginate content more than 10% was
obtained from the species of Padina sp., Dictyota sp. 1, Dictyota sp. 2,
Sargassum polycistum 1, Turbinaria ornate, and Turbinaria murayana. Whereas,
the alginate content less than 10% obtained from the species of Sargassum
aquifolium, Sargassum sp., Turbinaria conoides, S. crassifolium, S. polycistum
2, S. Cristaefolium, and Hormophysa sp.. Therefore, it can be concluded that
only the brown seaweeds had potency as alginate sources. It needed to analyze physical and chemical
characteristics of this alginate related to its quality and functional
application.
Keywords: alginate, seaweed,
extraction methods
Penulis: Sri Widyastuti
Kode Jurnal: jppertaniandd090020
