Protein, fatty acid, and pigment content of Chlorella vulgaris under different light regimes
Protein, fatty acid, and pigment content of Chlorella vulgaris under different light regimes
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DOI：
10.1007/s10811-010-9569-8
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发表时间：
2011-08-01
影响因子：
3.3
通讯作者：
Khoeyi, Zahra Amini
中科院分区：
文献类型：
--
作者：
Seyfabadi, Jafar;Ramezanpour, Zohreh;Khoeyi, Zahra Amini
测定了辐照度和光周期对普通小球藻生长速率、叶绿素a、β -胡萝卜素、总蛋白和脂肪酸含量的影响。在100 μ mol光子m(-2) s（-1）和16:8 h光/暗周期下，最大生长速率为1.13 d（-1）。叶绿素a和β -胡萝卜素含量在不同光照条件下存在显著差异，高辐照度和光照时间越长，叶绿素a含量越低，β -胡萝卜素含量越低。总蛋白和脂肪酸含量在不同光照条件下也存在显著差异；在100 μ mol光子m(-2) s（-1）和16:8 h光周期下，蛋白质含量最高（46%）；在37.5 μ mol光子m(-2) s（-1）和8:16 h光周期下，蛋白质含量最低（33%）；随着辐照度和光照时间的增加，饱和脂肪酸总量增加，单不饱和脂肪酸和多不饱和脂肪酸总量减少。
The effects of irradiance and photoperiod on growth rates, chlorophyll a, beta-carotene, total protein, and fatty acid content of Chlorella vulgaris were determined. The maximum growth rate (1.13 day(-1)) was at 100 mu mol photons m(-2) s(-1) and 16:8-h light/dark photoperiod. Chlorophyll a and beta-carotene contents significantly differed under different light regimes with chlorophyll a content lower at high irradiance and longer light duration, while beta-carotene showed the inverse trend. The total protein and fatty acid content also significantly differed in different light regimes; the maximum percentage of protein (46%) was at 100 mu mol photons m(-2) s(-1) and 16:8 h photoperiod, and minimum (33%) was at 37.5 mu mol photons m(-2) s(-1) and 8:16 h photoperiod; the total saturated fatty acids increased, while monounsaturated and polyunsaturated fatty acids decreased with increasing irradiance and light duration.