Thomas, Krishnamurthy: Agar from Cultured Gracüaria edulis (Gmel.) Silva Botanica Marina Vol. XJX, p. 115-117,1976 Agar from Cultured Gracüaria edulis (Gmel.) Silva P. C. Thomas and V. Krishnamurthy CSMCRIMarine AlgalResearch Station, Mandapam, Tamünadu, India (Rec. 11.2.75) Yield and quality of agar in the cultivated plants of Gracilaria edulis were determined. Methods of analysis are described. The yield of agar and the time of extraction, gel strength, gelling and melting temperatures of the agar were given. Based on the results, harvesting is advocated every three months after planting. An increase in gel strength of agar on addition of 5 % potassium chloride was noticed. The necessity, principles and problems involved in the cultivation of marine algae have been discussed by Krishnamurthy (1967). The main reason for proposing the cultivation of marine algae in India is the growing demand for raw-material for economic exploitation. An attempt was made to cultivate Gracilaria edulis and the results were reported (Raju and Thomas 1971). Healthy plants of Gracilaria edulis were collected and 2 cm fragments were taken out from the apicai portions of the plants. The fragments were inserted into the twists of rope at intervals of 5 cm and the ropes were
Botanica Marina – de Gruyter
Published: Jan 1, 1976
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