Composition of Photosynthetic Pigments in a Red Alga Kappaphycus Alvarezi Cultivated in Different Depths

Indriatmoko, Indriatmoko and Heriyanto, Heriyanto and Limantara, Leenawaty and Brotosudarmo, Tatas Hardo Panintingjati (2015) Composition of Photosynthetic Pigments in a Red Alga Kappaphycus Alvarezi Cultivated in Different Depths. 2nd Humboldt Kolleg in conjunction with International Conference on Natural Sciences, HK-ICONS 2014. pp. 194-201.

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Abstract

The red alga Kappaphycus alvarezii (Doty) Doty ex P.C. Silva has been introduced and mono cultivated in Indonesia as a seaweed commodity. This species is specifically grown in shallow and clear seawater, although there are several reports concerning the cultivation in deep seawater. It is interesting to know compositional changes of chlorophylls and carotenoids when K. alvarezii is grown at different depths. In this investigation, therefore K. alvarezii green and brown variants were cultivated at about 0.2 m (normal grown condition), 1 m, and 2 m depths and successfully obtained different ratios of chlorophyll and carotenoid composition at different depths. Quantitative analyses of chlorophylls to carotenoids ratio were carried out using data of chromatogram peak area. This investigation subsequently evaluated the photo and thermo-stability of the pigment extracts to examine the effects of pigment composition on the degradation rate of the pigments. This investigation was aimed to provide information regarding compositional change of the pigments by acclimation in terms of cultivation depths and pigment stability in vitro at condition of natural pigment composition in this alga.

Item Type:	Artikel Jurnal/Prosiding
Uncontrolled Keywords:	Chlorophyll/carotenoid ratio; Kappaphycus alvarezii; photo-stability; pigment acclimation; pigment composition; thermo-stability
Subjects:	A General Works > AC Collections. Series. Collected works
Divisions:	Tenaga Kependidikan Universitas Pembangunan Jaya
Depositing User:	Alexandro Andika
Date Deposited:	13 Apr 2023 01:02
Last Modified:	13 Apr 2023 01:02
URI:	http://eprints.upj.ac.id/id/eprint/4766

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