Potential of a novel brine-struvite-based growth medium for sustainable biomass and phycocyanin production by Arthrospira platensis.

IF 4.3 3区 工程技术 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Frontiers in Bioengineering and Biotechnology Pub Date : 2024-10-02 eCollection Date: 2024-01-01 DOI:10.3389/fbioe.2024.1466978
Stephan S W Ende, Albert S Beyer, Reham Ebaid, Mostafa Elshobary, Mafalda C Almeida, Cynthia Couto, Kit W Chew, Tamara Schwenkler, Joachim Henjes
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Abstract

Nutrient recovery is crucial for sustainability as it helps to recycle valuable resources, reduce environmental pollution, and promote the efficient use of natural materials in various agricultural and industrial processes. The present study investigated the impact of using brine and struvite as sustainable nutrient sources on the growth and c-phycocyanin (C-PC) production by the cyanobacterium Arthrospira platensis. Three modified growth media were compared to the standard SAG-spirul medium under yellow-white light [YLT], and blue-white light [BLT]. In the modified medium BSI, a struvite solution was utilized to replace dipotassium phosphate, while diluted brine was used to replace NaCl and de-ionized H2O. For BSII, struvite and brine were used as in BSI, with elimination of the micronutrient from the solution. In BSIII, no other nutrient sources than bicarbonate-buffer were used in addition to struvite and brine. For each medium, A. platensis was cultivated and incubated under YLT or BLT till the stationary phase. The results showed that the combinations of brine and struvite did not have any significant negative impact on the growth rates in BSIII. However, adding struvite as a phosphorus source boosted C-PC production just as effectively as YLT, with boosting biomass yield, unlike when only BLT was used. In conclusion, the brine/struvite-based media resulted in high biomass productivity with higher C-PC yields, making it an ideal growth medium for commercial sustainable C-PC production.

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基于盐水-吸附剂的新型生长培养基对板蓝根节肢动物可持续生产生物量和藻蓝蛋白的潜力。
养分回收对可持续发展至关重要,因为它有助于循环利用宝贵的资源,减少环境污染,并促进各种农业和工业生产过程中天然材料的有效利用。本研究调查了使用盐水和硬石膏作为可持续营养源对蓝藻节杆菌的生长和 c-phycocyanin (C-PC) 生产的影响。在黄白光[YLT]和蓝白光[BLT]下,将三种改良生长培养基与标准 SAG-螺旋培养基进行了比较。在改良培养基 BSI 中,用硬石膏溶液代替磷酸氢二钾,用稀盐水代替氯化钠和去离子水。在 BSII 培养基中,与 BSI 培养基一样,也使用了硬石膏和盐水,但取消了溶液中的微量营养元素。在 BSIII 中,除了重碳酸盐缓冲液和盐水外,没有使用其他营养源。在每种培养基中,A. platensis 都在 YLT 或 BLT 条件下培养至静止期。结果表明,盐水和硬石膏的组合对 BSIII 的生长率没有明显的负面影响。然而,与只使用 BLT 时不同的是,添加硬石膏作为磷源与 YLT 一样有效地促进了 C-PC 的生产,并提高了生物量产量。总之,以盐水/硬石膏为基础的培养基具有较高的生物量生产率和较高的 C-PC 产量,是商业化可持续 C-PC 生产的理想生长培养基。
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来源期刊
Frontiers in Bioengineering and Biotechnology
Frontiers in Bioengineering and Biotechnology Chemical Engineering-Bioengineering
CiteScore
8.30
自引率
5.30%
发文量
2270
审稿时长
12 weeks
期刊介绍: The translation of new discoveries in medicine to clinical routine has never been easy. During the second half of the last century, thanks to the progress in chemistry, biochemistry and pharmacology, we have seen the development and the application of a large number of drugs and devices aimed at the treatment of symptoms, blocking unwanted pathways and, in the case of infectious diseases, fighting the micro-organisms responsible. However, we are facing, today, a dramatic change in the therapeutic approach to pathologies and diseases. Indeed, the challenge of the present and the next decade is to fully restore the physiological status of the diseased organism and to completely regenerate tissue and organs when they are so seriously affected that treatments cannot be limited to the repression of symptoms or to the repair of damage. This is being made possible thanks to the major developments made in basic cell and molecular biology, including stem cell science, growth factor delivery, gene isolation and transfection, the advances in bioengineering and nanotechnology, including development of new biomaterials, biofabrication technologies and use of bioreactors, and the big improvements in diagnostic tools and imaging of cells, tissues and organs. In today`s world, an enhancement of communication between multidisciplinary experts, together with the promotion of joint projects and close collaborations among scientists, engineers, industry people, regulatory agencies and physicians are absolute requirements for the success of any attempt to develop and clinically apply a new biological therapy or an innovative device involving the collective use of biomaterials, cells and/or bioactive molecules. “Frontiers in Bioengineering and Biotechnology” aspires to be a forum for all people involved in the process by bridging the gap too often existing between a discovery in the basic sciences and its clinical application.
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