resumo
Anthocyanins from jucara fruits were extracted by pressurized liquid extraction (PLE) or ultrasound-assisted extraction (UAE), using aqueous solutions of 1,2-alkanediols and glycerol ethers as biobased solvents. The PLE (100 bar, 13 min, 1 mL/min flow rate) in the optimal extraction conditions originated 23.1 mg(anthocyanins)center dot g(dry biomass)(-1). On the other hand, the UAE was 10 min long, and the optimal conditions using 1,2-propanediol were 42.6 wt%, 160 W, and pH 7.0, leading to 50 mg(anthocyanins)center dot g(dry biomass)(-1). Extractions at the UAE optimized conditions, with aqueous solutions of five different 1,2-alkanediols and three glycerol ethers were performed, and compared to water and ethanolic extracts. The biobased solvent solutions presented anthocyanin yields up to 33% higher than water, and were shown to be as efficient as ethanol/water, but generated extracts with higher antioxidant capacity. The anthocyanin-rich extract of jucara, obtained with 1,2-propanediol, was used in the production of a natural soap and incorporated into a cream, showing that the addition of the jucara extract resulted in an antioxidant capacity in both products.
palavras-chave
PRESSURIZED LIQUID EXTRACTION; DEEP EUTECTIC SOLVENTS; ULTRASONICALLY ASSISTED EXTRACTION; BIOLOGICAL-ACTIVITIES; PHENOLIC-COMPOUNDS; WATER EXTRACTION; COLOR STABILITY; ATLANTIC FOREST; BY-PRODUCTS; ANTHOCYANINS
categoria
Biochemistry & Molecular Biology; Chemistry
autores
Soares, BP; Ferreira, AM; Justi, M; Rodrigues, LGG; Oliveira, JV; Pinho, SP; Coutinho, JAP
nossos autores
Ana Maria da Conceição Ferreira Takahashi
Investigador Júnior
Bruna de Paula Soares
Colaborador
Simão Pedro de Almeida Pinho
ColaboradorProjectos
CICECO - Aveiro Institute of Materials (UIDB/50011/2020)
CICECO - Aveiro Institute of Materials (UIDP/50011/2020)
Associated Laboratory CICECO-Aveiro Institute of Materials (LA/P/0006/2020)
agradecimentos
This work was developed within the scope of the project CICECO-Aveiro Institute of Materials, UIDB/50011/2020, UIDP/50011/2020, and LA/P/0006/2020, financed by national funds through the FCT/MCTES (PIDDAC). The authors are grateful to the Foundation for Science and Technology (FCT, Portugal) for the financial support through national funds FCT/MCTES (PIDDAC) to CIMO (UIDB/00690/2020 and UIDP/00690/2020) and SusTEC (LA/P/0007/2021). Bruna P. Soares is also grateful for the financial support provided by the Portuguese Foundation for Science and Technology (FCT) for the doctoral grant SFRH/BD/138439/2018. Finally, the authors are grateful to the Brazilian funding agencies for the financial support and fellowship. Specifically, CNPq (National Council of Technological and Scientific Development, Brazil), Project 404347/2016-9, CAPES (Coordination for the Improvement of Higher-Level Personnel, Brazil), projects CAPES/PROEX-1624/2018 and CAPES/PRINT88887.310560/2018-00.