دانلود مقاله ISI انگلیسی شماره 147289
کد مقاله سال انتشار مقاله انگلیسی ترجمه فارسی تعداد کلمات
147289 2018 29 صفحه PDF سفارش دهید 5797 کلمه
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عنوان انگلیسی
Combining light strategies with recycled medium to enhance the economic feasibility of phycocyanin production with Spirulina platensis
منبع

Publisher : Elsevier - Science Direct (الزویر - ساینس دایرکت)

Journal : Bioresource Technology, Volume 247, January 2018, Pages 669-675

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چکیده انگلیسی

C-phycocyanin (C-PC) produced from Spirulina platensis is of great commercial interest due to its healthcare properties. In this study, light sources and light-dark frequency were manipulated to enhance C-PC productivity of S. platensis. Using white LED resulted in higher C-PC production efficiency when compared to using fluorescent lamps and monochromatic LEDs. Proper adjustment of light-dark efficiency further increased C-PC production efficiency with relatively lower power consumption. In addition, using recycled medium in place of fresh medium proved to be an environmental-friendly and economic strategy for C-PC production with S. platensis. Optimal nitrate supplementation was also employed to improve the C-PC productivity. When grown under optimal culture conditions (i.e., light source, white LED; light-dark frequency, 30:30; recycled medium replacement, 50%; nitrate supplement, 45 mM), S. platensis could obtain the highest C-PC content (14.9%) and C-PC productivity (101.1 mg/L/d). This performance appears to be superior to that obtained from most related studies.

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