Nitrogen-doped carbon dots prepared from bovine serum albumin to enhance algal astaxanthin production

被引：42

作者：

Abu-Ghosh, Said ^{[1
,3
]}

Kumar, Vijay Bhooshan ^{[2
,3
]}

Fixler, Dror ^{[3
,4
]}

Dubinsky, Zvy ^{[1
]}

Gedanken, Aharon ^{[2
,3
]}

Iluz, David ^{[1
]}

机构：

[1] Bar Ilan Univ, Fac Life Sci, IL-5290002 Ramat Gan, Israel

[2] Bar Ilan Univ, Dept Chem, IL-5290002 Ramat Gan, Israel

[3] Bar Ilan Univ, Bar Ilan Inst Nanotechnol & Adv Mat BINA, IL-5290002 Ramat Gan, Israel

[4] Bar Ilan Univ, Fac Engn, IL-5290002 Ramat Gan, Israel

来源：

ALGAL RESEARCH-BIOMASS BIOFUELS AND BIOPRODUCTS | 2017年 / 23卷

关键词：

Astaxanthin; BSA; Carbon dots; Blue fluorescence; Haematococcus pluvialis; Nanotechnology; LIGHT-EMITTING DIODES; HAEMATOCOCCUS-PLUVIALIS; LIPID PRODUCTION; FLASHING LIGHT; GROWTH; ACCUMULATION; VOLVOCALES; BIOMASS;

D O I：

10.1016/j.algal.2017.01.011

中图分类号：

Q81 [生物工程学（生物技术）]; Q93 [微生物学];

学科分类号：

071005 ; 0836 ; 090102 ; 100705 ;

摘要：

The aim of this work was to use green and simply synthesized nitrogen-doped carbon dots (N@CDs) based on carbonized bovine serum albumin (BSA) to boost the accumulation of astaxanthin in microalgae. The BSA carbon dots revealed a high blue emission having a quantum yield of up to 44%, which is superior to all previously reported carbon dots. By directly adding the N@CDs at low concentrations (1 mg L-1) to the algal culture of Haematococcus pluvialis, astaxanthin production increased more than two-fold (66 mg L-1), compared to the control (29 mg L-1), in a shorter time of 1 week instead of 2 weeks at the reddening stage. After 1 month of continuous irradiation, the HRTEM images and fluorescence spectra of N@CDs looked similar to as-prepared N@CDs, suggesting their photostability and reusability. Our novel N@CDs could be a promising tool for the future industry of natural astaxanthin and other value-added products from microalgae. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：161 / 165

页数：5

共 27 条

[1] Flashing light enhancement of photosynthesis and growth occurs when photochemistry and photoprotection are balanced in Dunaliella salina [J].