Supporting information for the article “Preliminary characterization of the spectral properties of marennine-like pigments from new Haslea strains”

Marennine is a bluish pigment excreted in the seawater by the microalga Haslea Ostrearia. It has interested researchers of different backgrounds such as marine biologists, phytochemists and biochemists because it fixes on the oysters gills and make them green, a phenomenon observed since centuries in the Atlantic French coast near Marenne-Oléron, where the tradition of cultivating oysters is old. Its biological activities have been and are currently studied and many applications are interesting because of its antioxidant, antiangiogenetic and antibacterial activities but also for being a blue natural pigment. During recent sampling campaigns all over the word, new blue diatoms have been discovered and ongoing investigation of genome and frustules appearance are carried out to classify them. A preliminary characterization of the marennine-like pigments that they produce has been carried out, and selected data concerning UV-visible spectrometry, Infrared spectrometry, cyclic voltammetry, elemental composition by Energy-dispersive X-ray spectroscopy (EDX), and proton nuclear magnetic resonance are presented and discussed in the research paper related to this supporting information. Therefore, the data presented in this data paper complete the full paper.

玛伦宁色素（Marennine）是一种由微藻奥氏海毛藻（Haslea Ostrearia）排泄至海水中的蓝色素。该物质因可附着于牡蛎鳃部并使其呈现绿色而受到多学科背景研究者的关注，涵盖海洋生物学家、植物化学家与生物化学家等领域——这一现象在法国大西洋沿岸的马伦-奥勒龙（Marenne-Oléron）地区已被观测数百年，当地的牡蛎养殖传统源远流长。其生物活性过往至今仍被广泛研究，且凭借抗氧化、抗血管生成及抗菌活性，同时作为天然蓝色素的属性，拥有诸多极具潜力的应用场景。在近期遍及全球的采样调研中，科研人员发现了全新的蓝色硅藻类群，目前正通过基因组分析与硅藻壳（frustules）形态观测开展分类研究。针对这些微藻所产生的类玛伦宁色素，科研团队已完成初步表征，并在本支撑信息关联的研究论文中，展示并讨论了紫外-可见光谱法（UV-visible spectrometry）、红外光谱法（Infrared spectrometry）、循环伏安法（cyclic voltammetry）、采用能量色散X射线能谱（Energy-dispersive X-ray spectroscopy, EDX）得到的元素组成数据，以及质子核磁共振波谱（proton nuclear magnetic resonance）的精选结果。因此，本数据论文所收录的数据可对前述研究论文形成完整补充。