Optimization of the Extraction Process to Obtain a Colorant Ingredient from Leaves of Ocimum basilicum var. purpurascens
2019
Autori:
Fernandes, FilipaPereira, Eliana
Prieto, Miguel
Calhelha, Ricardo
Ćirić, Ana
Soković, Marina
Simal-Gandara, Jesus
Barros, Lillian
Ferreira, Isabel C. F. R.
Tip dokumenta:
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt:
Heat-Assisted Extraction (HAE) was used for the optimized production of an extract rich in anthocyanin compounds from Ocimum basilicum var. purpurascens leaves. The optimization was performed using the response surface methodology employing a central composite experimental design with five-levels for each of the assessed variables. The independent variables studied were the extraction time (t, 20–120 min), temperature (T, 25–85 °C), and solvent (S, 0–100% of ethanol, v/v). Anthocyanin compounds were analysed by HPLC-DAD-ESI/MS and the extraction yields were used as response variables. Theoretical models were developed for the obtained experimental data, then the models were validated by a selected number of statistical tests, and finally, those models were used in the prediction and optimization steps. The optimal HAE conditions for the extraction of anthocyanin compounds were: t = 65.37 ± 3.62 min, T = 85.00 ± 1.17 °C and S = 62.50 ± 4.24%, and originated 114.74 ± 0.58 TA mg/g of extract. This study highlighted the red rubin basil leaves as a promising natural matrix to extract pigmented compounds, using green solvents and reduced extraction times. The extract rich in anthocyanins also showed antimicrobial and anti-proliferative properties against four human tumor cell lines, without any toxicity on a primary porcine liver cell line.
Ključne reči:
Natural colorants; Anthocyanins; Ocimum basilicum var. purpurascens leaves; Red rubin basil; Heat-Assisted Extraction; Extraction optimizationIzvor:
Molecules, 2019, 24, 4, 686-Finansiranje / projekti:
- Karakterizacija i primena metabolita gljiva i utvrđivanje potencijala novih biofungicida (RS-MESTD-Basic Research (BR or ON)-173032)
- Foundation for Science and Technology (FCT, Portugal), FEDER - Program PT2020 - CIMO (UID/AGR/00690/2013)
- Interreg España-Portugal - 0377_Iberphenol_6_E)
- Regional Operational Program North 2020 - Project Mobilizador Norte-01-0247-FEDER-024479: ValorNatural®
- GAIN (Xunta de Galicia) (P.P. 0000 421S 140.08)
DOI: 10.3390/molecules24040686
PubMed: 30769867