Screening and characterization of agar of selected Agarophytes of La Union

Eden  Mamaril,

Screening and characterization of agar of selected Agarophytes of La Union

Discipline: agriculture, food and related studies

Abstract:

Agars of five (5) agarophytes of Balaoan and three (3) agarophytes of Sto. Tomas, La Union were screened and characterized based on yield (%), gelling and melting temperatures (°C), gel strength (g/cm2 ), rupture force (g), cohesiveness (g)and sulfate content (%). Agars of Balaoan agarophytes significantly differed in all physico-chemical properties considered. Gelling temperature, gel strength, rupture force, cohesiveness and sulfate content significantly differed among Sto. Tomas agarophytes. Agars of Gelidiella acerosa of both sources were comparable in terms of yield melting temperature and sulfate content. Likewise, agars of G. coronopifolia were comparable in yield, gelling and melting temperatures, gel strength, rupture force, cohesiveness and sulfate content. Relationships existed among the physicochemical properties ranged from negative weak to positive strong.

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