Photodegradation and Antioxidant Activity of Chlorophyll a from Spirulina (Spirulina sp.) Powder
| Main Authors: | Rebecca, Christiana, Hari, Kristopo, Leenawaty, Limantara |
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| Format: | Article PeerReviewed |
| Terbitan: |
, 2008
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| Subjects: | |
| Online Access: |
http://eprints.upj.ac.id/id/eprint/118/ https://jurnal.ugm.ac.id/ijc/article/view/21628 |
Daftar Isi:
- Research on chlorophyll a from Spirulina (Spirulina sp.) powder has been done in order to determine chlorophyll a content, to compare degradation pattern and kinetics degradation of chlorophyll a and crude extract as well as to investigate the difference of antioxidant activity of chlorophyll a with or without irradiation. Chlorophyll a content in spirulina powder was calculated by using Porra's equation. Irradiation and recovery ability of chlorophyll a were measured by using volpi light (Intralux 6100) equipped with daylight filter. The antioxidant activity of chlorophyll a was determined by using DPPH method. The results showed that chlorophyll a content was 2.886 μg/g dry weight. Chlorophyll a has the higher stability than crude extract against 60 minutes irradiation at room temperature. Kinetics degradation of chlorophyll a was based on second order while crude extract based on first order. Chlorophyll a and crude extract have recovery ability. The results also showed that antioxidant activity of chlorophyll a was increased after 60 minutes of irradiation.