Intensity of blue LED light: A potential stimulus for biomass and lipid content in fresh water microalgae Chlorella vulgaris

被引：200

作者：

Atta, Madiha ^{[1
]}

Idris, Ani ^{[1
]}

Bukhari, Ataullah ^{[1
]}

Wahidin, Suzana ^{[2
]}

机构：

[1] Univ Teknol Malaysia, Inst Bioprod Dev, Fac Chem Engn, Dept Bioproc Engn, Johor Baharu 81310, Johor, Malaysia

[2] Univ Kuala Lumpur, Malaysian Inst Chem & Bioengn, Alor Gajah 78000, Melaka, Malaysia

来源：

BIORESOURCE TECHNOLOGY | 2013年 / 148卷

关键词：

C; vulgaris; Blue LED intensity; Light and dark regime; Lipid content; Specific growth rate; EMITTING-DIODES; GROWTH; ACCUMULATION; QUALITY; CULTIVATION; CULTURE; ACIDS; OIL;

D O I：

10.1016/j.biortech.2013.08.162

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Light quality and the intensity are key factors which render microalgae as a potential source of biodiesel. In this study the effects of various intensities of blue light and its photoperiods on the growth and lipid content of Chlorella vulgaris were investigated by using LED (Light Emitting Diode) in batch culture. C vulgaris was grown for 13 days at three different light intensities (100, 200 and 300 mu mol m(-2) s(-1)). Effect of three different light and dark regimes (12:12, 16:08 and 24:00 h Light:Dark) were investigated for each light intensity at 25 degrees C culture temperature. Maximum lipid content (23.5%) was obtained due to high efficiency and deep penetration of 200 mu mol m(-2) s(-1) of blue light (12:12 L:D) with improved specific growth (1.26 d(-1)) within reduced cultivation time of 8 days. White light could produce 20.9% lipid content in 10 days at 16:08 h L:D. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：373 / 378

页数：6

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