城市生活污水用于培养雨生红球藻的研究

发布时间：2018-01-01 04:38

本文关键词：城市生活污水用于培养雨生红球藻的研究　出处：《中国生物工程杂志》2016年11期 　论文类型：期刊论文

【摘要】：虾青素是自然界广泛存在的一种橘红色类胡萝卜素,广泛应用于食品、药品和化妆品行业。在虾青素的制备中,雨生红球藻是生产虾青素的最有效来源,目前提高虾青素产量的方式主要为提高生物量和产物合成率。目前已有大量研究针对生物量的优化,但依然存在改善空间。为此,尝试用城市生活污水作为培养基对雨生红球藻进行培养。结果表明,生活污水能促进雨生红球藻的生长,其产量是现有BG11培养基的2倍;虾青素的合成时期显著提前(P0.05),且体内重金属含量未明显富集,处在安全浓度范围。此外,养藻后的城市生活污水中氮、磷含量显著降低(P0.05),高氮、磷富余的情形得到有效改善。证实利用污水培养雨生红球藻的双重效应,一方面有利于积累藻类生物量,另一方面有助于净化水质,在经济效益和生态效益上具有极好的发展潜力。
[Abstract]:Astaxanthin is an orange carotenoid widely used in food, medicine and cosmetics industry. In the preparation of astaxanthin, Haematococcus pluvialis is the most effective source of astaxanthin production. At present, the main way to increase astaxanthin production is to increase biomass and product synthesis rate. At present, a large number of studies have been focused on biomass optimization, but there is still room for improvement. The results showed that domestic sewage could promote the growth of Haematococcus pluvialis and its yield was twice as much as that of the existing BG11 medium. Astaxanthin synthesis period was significantly ahead of time, and the heavy metal content in the body was not significantly enriched, in the safe concentration range. In addition, nitrogen in municipal domestic sewage after algae culture. The situation of high nitrogen and phosphorus surplus was improved effectively. It was proved that the double effect of using sewage to cultivate Hyphococcus pluvialis was beneficial to the accumulation of algal biomass on the one hand. On the other hand, it is helpful to purify water quality and has excellent development potential in economic and ecological benefits.
【作者单位】：清华大学生命科学学院;清华大学深圳研究生院海洋科学与技术学部;
【基金】：深圳市科技创新委技术攻关项目(JSGG20140519113458237) 基础研究项目(JCYJ20140417115840286)资助项目
【分类号】：X799.3;Q949.2
【正文快照】： 虾青素是一种橘红色的类胡萝卜素,在自然界的多种水生生物体内都有发现。目前虾青素广泛应用于食品(饲料)、医疗和保健行业(营养品、化妆品)。虾青素具有比玉米黄质、叶黄素、角黄素等其它类胡萝卜素强10倍的抗氧化能力[1],特别是在自由基清除能力方面比β-胡萝卜素强38倍、比

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