Interna(onal Conference of The Indonesian Chemical Society 33
K02
Carotenoids from the Indonesian ExoAc Species
Indra A.Gunawan1, Jovine M. Kuriawan1, Arif A. Wibowo1, Edi SePyono2, Heri- yanto1,2, Yuzo Shioi2, KonstanPna M.B. Kameubun4, Leenawaty Limantara2,3, and Tatas H.P. Brotosudarmo1,2*
1Department of Chemistry, Faculty of Science and Technology, Universitas Ma Chung, Jl.
Villa Puncak Tidar N-01, Malang 65151, East Java, Indonesia
2Ma Chung Research Center for Photosynthe=c Pigments (MRCPP), Universitas Ma Chung, Jl. Villa Puncak Tidar N-01, Malang 65151, East Java, Indonesia
3Center for Urban Studies, Universitas Pembangunan Jaya, Jl. Cendrawasih Rata B7/P, South Tangerang 15413, Banten, Indonesia
4Biology Educa=on Department, Faculty of Teacher Training and Educa=on, Cenderawasih University
*Corresponding author: [email protected]
Carotenoids are a family of yellow to orange-red pigments, structurally consisted of 40-carbon atom to form 8-isoprene skeletons. Currently there are more than 500 carotenoid structures have been fully elucidated. Carotenoids are very inter- esPng system. Their conjugated double-bond system determines the light- absorpPon properPes and chemical reacPvity that form the basis of most func- Pons. Specifics interacPons with other molecules in the immediate vicinity strong- ly influence the properPes of a carotenoid and are also crucial to funcPoning. Ca- rotenoids play important role in the photosynthesis reacPons, i.e. to harness the sunlight energy, to transfer the excited energy to chlorophylls, and responsible for photo-protecPon such as in protecPon against UV- and blue-ray, singlet oxy- gen scavenging and quenching of chlorophyll triplet states. Our group works in determinaPon of carotenoids from Indonesian natural resources, e.g. red fruit (Pandanus conoideus), a n indigenous plant in Papua Island, marigold flower (Tagetes erecta L.), a religious significant flower of Balinese Hindus, brown algae (Phaeophyceae), and a coral endophyPc symbiont (Erythrobacter sp.). We are working with carotenoids such as as b-carotenone, semi-b-carotenone, lutein, fucoxanthin, and sulfated carotenoids. In this presentaPon, we would like to in- troduce the wide variety carotenoid, funcPons in photosynthesis reacPon and funcPons in human health, efforts to determine the structure in various indige- nous species, and the study about its aggregaPon properPes in organic solvent, nanoparPcles and in the naPve pigment-protein complex.
Keywords: aggrega=on, carotenoid, chromatographic separa=on, spectroscopic determina=on
