SEASONAL VARIATION IN BIOACTIVE COMPOUNDS FROM KAPPAPHYCUS ALVAREZII RESIDUAL BIOMASS: POTENTIAL FOR FOOD INDUSTRY APPLICATIONS

Download
Favorite this paper
How to cite this paper?
Details
  • Presentation type: Poster
  • Track: Sustainable exploitation of biodiversity, nature based-solutions, circular economy – (SE)
  • Keywords: Seaweed; Food industry; Biochemical composition;

Authors:

  • 1 University of Caxias Do Sul
  • 2 Instituto de Química da Universidade de São Paulo
  • 3 Universidade Federal de Santa Catarina
  • 4 Empresa de Pesquisa Agropecuária e Extensão Rural de Santa Catarina
  • 5 Universidade Estadual Paulista "Júlio de Mesquita Filho"

SEASONAL VARIATION IN BIOACTIVE COMPOUNDS FROM KAPPAPHYCUS ALVAREZII RESIDUAL BIOMASS: POTENTIAL FOR FOOD INDUSTRY APPLICATIONS

Aline Nunes

Universidade Estadual Paulista 'Júlio de Mesquita Filho'

Abstract

The residual biomass of Kappaphycus alvarezii, a by-product of biofertilizer production, shows potential for food industry applications due to its high carrageenan content and diverse biochemical profile. Carrageenan, valued for its gelling and thickening properties, is widely used in food products, while other bioactive compounds offer potential health benefits. This study analyzed the seasonal biochemical composition (autumn – Au, winter – Wi, spring – Sp, summer – Su) of freeze-dried residue samples from two farms in Santa Catarina, Brazil (Florianópolis – F, Palhoça – P), to assess the stability and seasonal variation of compounds such as ashes, total carbohydrates (TC), soluble sugars (TSS), total lipids (TP), starch (TS), total phenolics (TPC), carotenoids (TCN), flavonoids (TFC), and carrageenan yield (CAR). Statistical analyses (ANOVA with Tukey’s test) were conducted, normalizing data as needed. Results highlighted significant seasonal and locational variation for most compounds, except for TL (4.79%), which remained consistent across all samples. TSS (6.28 mg/g) showed no differences except for the significantly lower TSS-Su-F (1.16 mg/g). The winter samples Wi-F exhibited the highest values for TP (1.09 mg/g), TS (265.92 mg/g), and TCN (248.96 mg/100g), while Wi-P showed the highest ash content (31.87%) and both locations had the same CAR content (22.55%). TC was higher in Au (523.15 mg/g) and Wi (462.99 mg/g) than in Sp (289.69 mg/g) and Su (376.88 mg/g). The highest TFC (13.54 mg/100 g) was observed in Au-P, while TPC peaked in Su-P (66.83 mg/100 g). These results demonstrate that season and geographic origin significantly influence the biochemical composition of K. alvarezii residues, particularly in winter and autumn samples. This variability underscores the need for season-specific processing strategies to maximize the potential of each profile. These findings also support sustainable practices in the food industry, promoting a circular economy by converting residual biomass into value-added, nutrient-rich ingredients.

Share your ideas or questions with the authors!

Did you know that the greatest stimulus in scientific and cultural development is curiosity? Leave your questions or suggestions to the author!

Sign in to interact

Have a question or suggestion? Share your feedback with the authors!