期刊
ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS
卷 41, 期 -, 页码 -出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.algal.2019.101530
关键词
beta-Carotene; Carotenoid pathway; Fucoxanthin; Navicula sp.; Photosynthetic pigments; Tropical marine diatom
资金
- Ministry of Research, Technology and Higher Education, the Republic of Indonesia through the Program of Materplan Percepatan dan Perluasan Pembangunan Indonesia (MP3EI) [MP3EI]
- Program of Insentif Riset Sistem Inovasi Nasional (INSINAS)
- Beasiswa Pendidikan Pascasarjana Dalam Negeri (BPP-DN)
- Beasiswa Disertasi Doktor
We investigated the dynamics of beta-carotene and fucoxanthin produced by the tropical marine Navicula sp. that were cultured indoors and outdoors. To obtain high biomass and carotenoid levels, the growth of Navicula sp. in three different nitrogen media (ammonium, urea, and nitrate medium) was evaluated. Navicula sp. showed the most growth in the nitrate medium with a ratio of total carotenoid to chlorophyll a of 1.94 observed on the 7th d. When Navicula sp. growth reached the stationary phase, the ratio of total carotenoid to chlorophyll a increased due to chlorophyll damage. The biomass productivity of Navicula sp. cultivated indoors and outdoors was 153 +/- 3 and 93 +/- 3 mg dried cell L-1 culture d(-1), respectively. Under light stress conditions, the Navicula sp. cell size was reduced. Among Navicula sp. carotenoids, the amount of beta-carotene and fucoxanthin expressed by the cell in response to light stress was very dynamic. The fucoxanthin content of Navicula sp. decreased from 5.40 +/- 0.05 (indoor) to 2.61 +/- 0.06 (outdoor) mg g(-1) dried biomass. However, the beta-carotene content of Navicula sp. increased from 19.99 +/- 0.16 (indoor) to 24.08 +/- 0.16 (outdoor) mu g g(-1) of dried biomass, which indicates the importance of beta-carotene for the photoprotection of cells.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据