PRODUCTION OF THE Kappaphycus alvarezii EXTRACT AS A LEAF BIOFERTILIZER: TECHNICAL AND ECONOMIC ANALYSIS FOR THE NORTH COAST OF SÃO PAULO-BRAZIL
The extract of the Kappaphycus alvarezii seaweed is used as a leaf biofertilizer and several studies had proven its efficiency in several crops. This study aimed to analyze the economic viability of fresh seaweed production and the chemically characterized seaweed extract cultivated as a technical-e...
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| Language: | English |
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Instituto de Pesca
2020-10-01
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| Series: | Boletim do Instituto de Pesca |
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| Online Access: | https://www.pesca.sp.gov.br/boletim/index.php/bip/article/view/1504/1461 |
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| author | Valeria Cress GELLI Marco Túlio Ospina PATINO Jansle Vieira ROCHA Edison BARBIERI Kleber Campos MIRANDA-FILHO Marcelo Barbosa HENRIQUES |
| author_facet | Valeria Cress GELLI Marco Túlio Ospina PATINO Jansle Vieira ROCHA Edison BARBIERI Kleber Campos MIRANDA-FILHO Marcelo Barbosa HENRIQUES |
| author_sort | Valeria Cress GELLI |
| collection | DOAJ |
| description | The extract of the Kappaphycus alvarezii seaweed is used as a leaf biofertilizer and several studies had proven its efficiency in several crops. This study aimed to analyze the economic viability of fresh seaweed production and the chemically characterized seaweed extract cultivated as a technical-economic alternative for coastal communities. Yields of the solid and liquid fractions were quantified, the extract was characterized in its chemical composition of macronutrients and micronutrients and it was classified according to the criteria of the Brazilian legislation of agricultural fertilizers. For the study of economic feasibility, different sales price scenarios were considered and compared with the commercialization of fresh seaweed. The average yield obtained from the processing of the Brazilian adapted strains of the K. alvarezii for the liquid fraction or fresh seaweed extract was 0.71 ± 0.0080 L kg-1 and the moisture solid production was 295 ± 0.0126 g kg-1. The production of fresh seaweed was unfeasible and for the handmade extract was economically viable for the scenario with the sale price of US$ 2.77 with a net present value of US$ 35,300.13 and an internal rate of return (IRR) of 38.99% over ten year. |
| format | Article |
| id | doaj-art-4ec67dcd887e4bc0be4cfad78e7a8be1 |
| institution | DOAJ |
| issn | 0046-9939 1678-2305 |
| language | English |
| publishDate | 2020-10-01 |
| publisher | Instituto de Pesca |
| record_format | Article |
| series | Boletim do Instituto de Pesca |
| spelling | doaj-art-4ec67dcd887e4bc0be4cfad78e7a8be12025-08-20T02:55:06ZengInstituto de PescaBoletim do Instituto de Pesca0046-99391678-23052020-10-0146211210.20950/1678-2305.2020.46.2.568PRODUCTION OF THE Kappaphycus alvarezii EXTRACT AS A LEAF BIOFERTILIZER: TECHNICAL AND ECONOMIC ANALYSIS FOR THE NORTH COAST OF SÃO PAULO-BRAZILValeria Cress GELLI0https://orcid.org/0000-0002-6500-1763Marco Túlio Ospina PATINO1https://orcid.org/0000-0002-4285-7761Jansle Vieira ROCHA2https://orcid.org/0000-0003-3337-4394Edison BARBIERI3https://orcid.org/0000-0002-7423-3726Kleber Campos MIRANDA-FILHO4https://orcid.org/0000-0002-3026-4491Marcelo Barbosa HENRIQUES5https://orcid.org/0000-0003-1419-9121Instituto de Pesca - Agência Paulista Tecnológica dos Agronegócios (IP-APTA)Universidade Estadual de Campinas - Faculdade de Engenharia Agrícola (UNICAMP – FEAGRI)Universidade Estadual de Campinas - Faculdade de Engenharia Agrícola (UNICAMP – FEAGRI)Instituto de Pesca - Agência Paulista Tecnológica dos Agronegócios (IP-APTA)Universidade Federal de Minas Gerais – UFMG, Departamento de ZootecniaInstituto de Pesca - Agência Paulista Tecnológica dos Agronegócios (IP-APTA)The extract of the Kappaphycus alvarezii seaweed is used as a leaf biofertilizer and several studies had proven its efficiency in several crops. This study aimed to analyze the economic viability of fresh seaweed production and the chemically characterized seaweed extract cultivated as a technical-economic alternative for coastal communities. Yields of the solid and liquid fractions were quantified, the extract was characterized in its chemical composition of macronutrients and micronutrients and it was classified according to the criteria of the Brazilian legislation of agricultural fertilizers. For the study of economic feasibility, different sales price scenarios were considered and compared with the commercialization of fresh seaweed. The average yield obtained from the processing of the Brazilian adapted strains of the K. alvarezii for the liquid fraction or fresh seaweed extract was 0.71 ± 0.0080 L kg-1 and the moisture solid production was 295 ± 0.0126 g kg-1. The production of fresh seaweed was unfeasible and for the handmade extract was economically viable for the scenario with the sale price of US$ 2.77 with a net present value of US$ 35,300.13 and an internal rate of return (IRR) of 38.99% over ten year.https://www.pesca.sp.gov.br/boletim/index.php/bip/article/view/1504/1461macroalgaeseaweed liquid fertilizers (slfmaricultureeconomic feasibility |
| spellingShingle | Valeria Cress GELLI Marco Túlio Ospina PATINO Jansle Vieira ROCHA Edison BARBIERI Kleber Campos MIRANDA-FILHO Marcelo Barbosa HENRIQUES PRODUCTION OF THE Kappaphycus alvarezii EXTRACT AS A LEAF BIOFERTILIZER: TECHNICAL AND ECONOMIC ANALYSIS FOR THE NORTH COAST OF SÃO PAULO-BRAZIL Boletim do Instituto de Pesca macroalgae seaweed liquid fertilizers (slf mariculture economic feasibility |
| title | PRODUCTION OF THE Kappaphycus alvarezii EXTRACT AS A LEAF BIOFERTILIZER: TECHNICAL AND ECONOMIC ANALYSIS FOR THE NORTH COAST OF SÃO PAULO-BRAZIL |
| title_full | PRODUCTION OF THE Kappaphycus alvarezii EXTRACT AS A LEAF BIOFERTILIZER: TECHNICAL AND ECONOMIC ANALYSIS FOR THE NORTH COAST OF SÃO PAULO-BRAZIL |
| title_fullStr | PRODUCTION OF THE Kappaphycus alvarezii EXTRACT AS A LEAF BIOFERTILIZER: TECHNICAL AND ECONOMIC ANALYSIS FOR THE NORTH COAST OF SÃO PAULO-BRAZIL |
| title_full_unstemmed | PRODUCTION OF THE Kappaphycus alvarezii EXTRACT AS A LEAF BIOFERTILIZER: TECHNICAL AND ECONOMIC ANALYSIS FOR THE NORTH COAST OF SÃO PAULO-BRAZIL |
| title_short | PRODUCTION OF THE Kappaphycus alvarezii EXTRACT AS A LEAF BIOFERTILIZER: TECHNICAL AND ECONOMIC ANALYSIS FOR THE NORTH COAST OF SÃO PAULO-BRAZIL |
| title_sort | production of the kappaphycus alvarezii extract as a leaf biofertilizer technical and economic analysis for the north coast of sao paulo brazil |
| topic | macroalgae seaweed liquid fertilizers (slf mariculture economic feasibility |
| url | https://www.pesca.sp.gov.br/boletim/index.php/bip/article/view/1504/1461 |
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