Banca de QUALIFICAÇÃO: MARIA EDUARDA ALMEIDA DE SOUZA RODRIGUES

Uma banca de QUALIFICAÇÃO de MESTRADO foi cadastrada pelo programa.
STUDENT : MARIA EDUARDA ALMEIDA DE SOUZA RODRIGUES
DATE: 26/08/2026
TIME: 16:00
LOCAL: Sala de Reunião, Centro de Biociências, UFRN
TITLE:

CULTIVATION, CHEMICAL CHARACTERIZATION, AND BIOSTIMULANT POTENTIAL OF THE MACROALGA Kappaphycus alvarezii: AN APPROACH TO SUSTAINABLE AGRICULTURE AND REGIONAL DEVELOPMENT

KEY WORDS:

Kappaphycus alvarezii; biomass; growth rate; chemical characterization; biostimulant.

PAGES: 41
BIG AREA: Ciências Agrárias
AREA: Agronomia
SUMMARY:

Kappaphycus alvarezii is a red macroalga of significant economic and biotechnological importance, attracting growing interest as a raw material for producing agricultural biostimulants. This study aimed to evaluate the growth rate of K. alvarezii and characterize the chemical and mineral composition of its biomass to support its use as a raw material for biostimulant production. Cultivation was carried out using a longline system in a pond integrated with shrimp farming in Caiçara do Norte, Rio Grande do Norte, Brazil. Growth rates were assessed over 60 days through periodic measurements of fresh biomass and relative growth rate. The biomass underwent proximate analysis—including determinations of moisture, ash, crude protein, crude fiber, and lipids—as well as mineral composition analysis. The dry biomass showed 9.74 ± 0.12% moisture, 38.26 ± 0.54 g 100 g⁻¹ ash, 3.99 ± 0.18 g 100 g⁻¹ crude protein, and 10.40 ± 1.08 g 100 g⁻¹ crude fiber, while the lipid content was below 0.10 g 100 g⁻¹. The high ash content and the presence of the other chemical fractions highlight significant characteristics of the cultivated biomass. The results obtained to date contribute to characterizing *K. alvarezii* produced under local conditions and provide a basis for evaluating its potential as a raw material for developing agricultural biostimulants.

COMMITTEE MEMBERS:
Presidente - 1221519 - DÁRLIO INÁCIO ALVES TEIXEIRA
Interna - 1516627 - JULIANA ESPADA LICHSTON
Externo ao Programa - 1166812 - WALLACE SILVA DO NASCIMENTO - null