Successful establishment of commercial farming of carrageenophyte Kappaphycus alvarezii Doty (Doty) in Sri Lanka: Economics of farming and quality of dry seaweed

Shanmugam, M.; Sivaram, K.; Rajeev, E.; Pahalawattaarachchi, V.; Chandraratne, P. N.; Asoka, J. M.; Seth, Abhiram

doi:10.1007/s10811-017-1161-z

Cited by 15 publications

(2 citation statements)

References 30 publications

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“…This variable was low when compared to the aquaculture of other organisms such as finfish. Total initial investment values for seaweed farming show high variation, ranging from 166 to 138,000 US$/ha (FAO, 2013;Hurtado et al, 2001;Shanmugam et al, 2017;van den Burg et al, 2016). The wide range of investment values may be due to differences in production systems, currency conversion, and local opportunities.…”

Section: Discussionmentioning

confidence: 99%

A bioeconomic analysis of the potential of seaweed Hypnea pseudomusciformis farming to different targeted markets

Pereira

Kimpara

Valenti

2020

Aquaculture Economics & Management

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Simulations were performed to evaluate the economic potential of farming the seaweed Hypnea pseudomusciformis in two production scales for the carrageenan, human food, and glycolic extract markets in Brazil. The initial investment was low in all scenarios (US$25,579 in 7.5 ha and US$71,202 in 22.5 ha farms). Labor and taxes were the major production costs for production commercialized for the carrageenan and human food markets, respectively. Liquid glycerin and bottles were the main costs when the productions were marketed for glycolic extract. The carrageenan market showed no economic feasibility. On the other hand, the human consumption market was shown as very profitable, resilient, and highly attractive (IRR was $100%). Marketing the glycolic extract is also feasible and attractive (IRR was $25%) but had lower economic indicators and low resilience when compared to the human food market scenario. Upscaling the production optimized investments and reduced production costs, improving profitability. The plasticity of seaweed enables entrepreneurs to explore different markets simultaneously to increase farm resilience.

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Section: Discussionmentioning

confidence: 99%

A bioeconomic analysis of the potential of seaweed Hypnea pseudomusciformis farming to different targeted markets

Pereira

Kimpara

Valenti

2020

Aquaculture Economics & Management

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“…Thereafter, these Kappaphycus seaweeds were introduced to other countries, mainly to be used as raw materials in aquaculture (Campbell & Hotchkiss, 2017). Sri Lanka also has imported Kappaphycus alvarezii from Malaysia, the seed materials have been cultivated in Valaipadu and Vidathalaitivu areas, and the pilot-scale trials have been conducted in different locations of Jaffna, Mannar, and Kilinochchi in Northern province (Shanmugam et al, 2017). In the past, vegetative cuttings were the only means to propagate Kappaphycus.…”

Section: Introductionmentioning

confidence: 99%

Comparative Analysis of Green and Brown Morphotypes of <em>Kappaphycus alvarezii Doty</em> (Doty): Morphology, Total Phenol Content, Antioxidant Activity and Antimicrobial Activity

Rajapaksha,

Gunathilake,

Nirooparaj

et al. 2024

Trop. Agric. Res.

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Kappaphycus alvarezii Doty (Doty), commonly known as elkhorn sea moss, is a popular seaweed cultivated globally. It is a well-known source of carrageenan, which is a thickening agent used in food and other industries. Even though different morphotypes of K. alvarezii are reported globally, it has been cultivated and marketed as a single genotype. However, such information is important, especially to produce high-value products such as nutraceuticals. Therefore, this study aimed to evaluate differences in microscopic structure, antimicrobial and antioxidant properties, and total phenolic contents of green and brown morphotypes of K. alvarezii cultivated in Jaffna, Sri Lanka. Except for the colour, there was no significant difference in macroscopic parameters. There was no significant difference observed in cross-sections under the light microscope. Antimicrobial properties of ethanol, methanol and water extracts were evaluated by disc diffusion assay against, Staphylococcus aureus, Escherichia coli and Pseudomonas aeruginosa. Antioxidant properties and total phenolic contents were determined using 1, 1- diphenyl-2-picrylhydrazyl (DPPH) radical scavenging assay and Folin–Ciocalteau method, respectively. Interestingly, the antibacterial activity, antioxidant properties and total phenolic content of K. alvarezii depend on the morphotype. The green morphotype was rich in total phenolic compounds along with high antibacterial and antioxidant properties. Staphylococcus aureus was the most susceptible bacteria to antimicrobial agents of K. alvarezii and both ethanol and methanol extractions were efficient without significant differences between them in all the assays. The current data suggests better performance of the green morphotype of K. alvarezii as a natural source of antibacterial and antioxidant compounds.

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Commercial Farming of Kappaphycus alvarezii in Sri Lanka: Current Developments and Opportunity for Becoming a Major Carrageenophyte Producer

Munisamy,

Nirooparaj,

Asoka

2024

Developments in Applied Phycology

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Successful establishment of commercial farming of carrageenophyte Kappaphycus alvarezii Doty (Doty) in Sri Lanka: Economics of farming and quality of dry seaweed

Cited by 15 publications

References 30 publications

A bioeconomic analysis of the potential of seaweed Hypnea pseudomusciformis farming to different targeted markets

A bioeconomic analysis of the potential of seaweed Hypnea pseudomusciformis farming to different targeted markets

Comparative Analysis of Green and Brown Morphotypes of <em>Kappaphycus alvarezii Doty</em> (Doty): Morphology, Total Phenol Content, Antioxidant Activity and Antimicrobial Activity

Commercial Farming of Kappaphycus alvarezii in Sri Lanka: Current Developments and Opportunity for Becoming a Major Carrageenophyte Producer

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