Growth and iota-carrageenan from the red seaweed Solieria filiformis (Rhodophyta, Solieriaceae) cultivated in the Ceara State coast, Brazil

IF 2.4 3区农林科学 Q2 FISHERIES Aquaculture International Pub Date : 2025-02-17 DOI:10.1007/s10499-025-01864-6

Ticiana de Brito Lima Holanda, Érika Façanha Bessa, Francisco Ewerton de Sousa Lima, Francisco Lucas de Souza Lopes, Jéssica Roberta Pereira Martins, Norma Maria Barros Benevides, Márjory Lima Holanda Araújo

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Abstract

The red seaweed Solieria filiformis is a source of nutrients, active biomolecules, and the iota(ι)-carrageenan hydrocolloid. In Brazil, it is found in natural stock; however, the sustainable biomass production of this seaweed species in the sea has not been reported. The S. filiformis cultivation was evaluated at Flecheiras Beach, on the coast of Ceara State in Northeast Brazil, using Long-line with Vertical Rope Structures (LVRS) and Colonized Modules (CM) methods during the rainy and dry seasons. The environmental parameters of the cultivation site, the daily growth rates (DGR) at 30, 45, and 60 days after planting, the biomass density, and the ι-carrageenan extracted were assessed. Local environmental conditions supported seaweed growth in both seasons. However, the highest DGR (6.1%) was recorded 30 days after planting during the dry season using LVRS. The highest seaweed biomass density was 53 kg ws module⁻¹ using CM method. The highest ι-carrageenan yields (48.3% and 53.1%) were obtained from the biomasses produced in the dry season, using LVRS and CM methods, respectively. The mean sulfate content of the ι-carrageenan extracted was 26.8 ± 1.9%, a relevant feature of their physicochemical properties and biological activities.

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巴西塞拉州海岸种植的红海藻丝状紫苏（红藻，紫苏科）的生长和含角叉胶

红海藻丝状Solieria filiformis是一种营养物质、活性生物分子和iota(ι)-卡拉胶水胶体的来源。在巴西，它存在于自然种群中；然而，这种海藻在海洋中的可持续生物质生产尚未见报道。在巴西东北部塞阿拉州海岸的Flecheiras海滩，采用长绳垂直绳结构（LVRS）和定殖模块（CM）方法，在雨季和旱季对S. filiformis的种植进行了评估。测定种植场地环境参数、种植后30、45、60 d的日生长率（DGR）、生物量密度和提取的ι-卡拉胶含量。当地的环境条件在两个季节都支持海藻的生长。然而，旱季LVRS种植后30天的DGR最高，为6.1%。CM法最大海藻生物量密度为53 kg ws模组−1。旱季生物量中，LVRS法和CM法的ι-卡拉胶产率最高，分别为48.3%和53.1%。提取的ι-卡拉胶的平均硫酸盐含量为26.8±1.9%，反映了其理化性质和生物活性的相关特征。图形抽象

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来源期刊

Aquaculture International 农林科学-渔业

CiteScore

5.10

自引率

6.90%

发文量

204

审稿时长

1.0 months

期刊介绍： Aquaculture International is an international journal publishing original research papers, short communications, technical notes and review papers on all aspects of aquaculture. The Journal covers topics such as the biology, physiology, pathology and genetics of cultured fish, crustaceans, molluscs and plants, especially new species; water quality of supply systems, fluctuations in water quality within farms and the environmental impacts of aquacultural operations; nutrition, feeding and stocking practices, especially as they affect the health and growth rates of cultured species; sustainable production techniques; bioengineering studies on the design and management of offshore and land-based systems; the improvement of quality and marketing of farmed products; sociological and societal impacts of aquaculture, and more. This is the official Journal of the European Aquaculture Society.