Physical Properties of Agarophyte Gracilaria sp. (verrucosa type) from Seaweed Culture of Takalar, South Sulawesi

Agus M Hatta(1*)
(1) Indonesia of Sciences
(*) Corresponding Author
Abstract
Agarophyte of Gracilaria sp. (verrucosa type) collected from Takalar, South Sulawesi, has been studied for its quality. The organoleptic test on the raw material indicated that its color was dull red and its water content was moderate, 23.53%. The impurity content was 46.2%, and mostly consisted of very fine water soluble materials. The agar yield of the raw material was 47.70%. Its physical properties, as indicated by geling point, gel surface strength and viscosity, were inferior than commercial agar. The data suggest that impurity content is the most important determinant of agar quality. Therefore, it is recommended to improve post harvest handling to obtain better quality.
Full Text:
PDFReferences
Abbott, I. A., Y. M. Chiang, S. Fredericq, J. N. Norris, R. T. Tsuda X. Bangmei and H. Yamamoto. 1985. The red alga Gracilaria Greville (Gracilariaceae, Gigartinales): Introduction. In "Taxonomy of economic seaweeds with reference to some Pacific and Carribean species". ed. Isabella A. Abbot and James N. Norris, pp. 67-68. California Sea Grant College Program.
Armisen, R. and F. Galatas. 1987. Production, properties and uses of agar. In "Production and utilization of products from commercial seaweeds". ed. Dennis J. McHugh, pp. 1-57. FAO Fisheries echnical Paper 288.
Hatta, A. M. and E. Hermiati. Simple methods for measuring gelling point and gell strength in agar and carrageenan. In " Perairan Maluku dan Sekitarnya" eds. D. P. Praseno et al., pp. 11-17. Balitbang Sumberdaya Laut, P3O-LIPI, Ambon.
Kim, D. H. 1970. Economically importance seaweeds, in Chile-I Gracillaria. Botanica Marina. 13: 140-162.
Mal, T. K. and K. Subbaramaiah. 1989. Yield and physical properties of agar in the reproductive phases of Gracilaria edulis (Gmel). Silva. Phycos. 28 (1&2): 260-266.
Marshall, S. M., L. Newton, A. P. Orr. 1949. A study of certain British seaweeds and their utilization in the preparaiton of agar". London, published for the ministry of health and the ministry of supply by his majesty's stationery office. 103 ps.
Matsuhiro B. and C. C. Urzua. 1990.Agars from Gracilaria chilensis (Gracilariales). Jurnal of Apploed Phycology. 2: 273-279.
Whyte, J. N. C. and J. R. Englar, R. G. Sunders and J. C. Lindsay. 1981. Seasonal variations in the biomass, quantitiy of agar, from the reproductive and vegetative stages of Gracilaria (verucossa type). Batanica Marina. 24: 493-501
Winarno, F. G. 1990. "Teknologi pengolahan rumput laut" Pustaka Sinar Harapan, Jakarta.

Article Metrics


Refbacks
- There are currently no refbacks.

This work is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Indonesian Food and Nutrition Progress (print ISSN 0854-6177; online ISSN 2597-9388) is published by the Indonesian Association of Food Technologists in collaboration with the Department of Food and Agricultural Product Technology, Faculty of Agricultural Technology, Universitas Gadjah Mada.
Indexed by: