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dc.contributor.authorde Castro, Teresa R.
dc.date.accessioned2013-02-06T03:10:10Z
dc.date.available2013-02-06T03:10:10Z
dc.date.issued1993
dc.identifier.citationde Castro, T. R. (1993). Evaluation of agar from three species of Gracilaria from Panay and Guimaras islands. The Philippine Scientist, 30, 41-47.en
dc.identifier.issn0079-1466
dc.identifier.urihttp://hdl.handle.net/10862/1412
dc.description.abstractAgar from three species of Gracilaria, G. changii G. coronopifolia, and Gracilariopsis heteroclada, collected form Panay and Guimaras islands was evaluated. Each species was pretreated with NaOH solution before extraction. Highest agar yields were obtained following alkaline pretreatment at the lowest concentration (1% NaOH) for all species. Highest gel strengths were obtained at different alkaline pretreatment conditions: 644 ± 3.4 g cm-2 at 3 % NaOH for 60 min for G. changii, 641 ± 11.9 g cm-2 at 5 % NaOH for 30 min for G. heteroclada, and 170 g cm-2 at 5 % NaOH for 30 min G. coronopifolia. Agar gelling temperatures ranged from 38.5-40ºC and agar melting temperature ranged from 80.5-85 ºC. Specific viscosity was highest for agar from G. changii at 18 cps. Moisture and ash contents ranged from 8.04-15.20 % and 4.32-4.98%, respectively. Based on the result for this study, G. heteroclada and G. changii are two species which merit further studies for their prospective commercial value to the different industries using agar.en
dc.language.isoenen
dc.publisherSan Carlos Publications, University of San Carlosen
dc.subjectGracilaria changiien
dc.subjectGracilaria coronopifoliaen
dc.subjectGracilariopsis heterocladaen
dc.subjectPhilippinesen
dc.titleEvaluation of agar from three species of Gracilaria from Panay and Guimaras islandsen
dc.typeArticleen
dc.citation.volume30
dc.citation.spage41
dc.citation.epage47
dc.citation.journalTitleThe Philippine Scientisten
seafdecaqd.library.callnumberVF SJ 0413
seafdecaqd.databank.controlnumber1993-16
dc.subject.asfaAgaren
dc.subject.asfaSeaweed productsen
dc.subject.asfaGelsen
dc.subject.asfaYielden
dc.subject.asfaViscosityen
dc.subject.asfaCommercial speciesen
dc.subject.asfaSeaweed cultureen
dc.subject.asfaPhysical propertiesen


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