Extraction, chemical characterization and antioxidant activity of Litchi chinensis Sonn. and Avena sativa L. seeds extracts obtained from pressurized n-butane
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The extraction of litchi (Litchi chinensis Sonn.) and oat (Avena sativa L.) seeds were investigated using n-butane as pressurized solvent by evaluating the effect of pressure in the range of 7–100 bar and temperature from 25 to 70 °C on the extract yield and chemical composition together with the antioxidant activity of the extracts obtained. It was experimentally observed extraction yields for both seeds up to ~3.5 wt%, with a total phenolic content around 126.4 mg GAE/100 g of extract, and an antioxidant activity up to 78.36%. Oat seeds extract presented higher values of these parameters evaluated compared to litchi extract. Based on the results found, it seems that n-butane may be a promising solvent to conventional extraction methods, as mild operating conditions and eco-friendly solvent can be used to provide good results without any residues in the final product.
KeywordsLitchi chinensis Sonn. Avena sativa L. Extraction n-Butane Chemical characterization Antioxidant activity
The authors thank CNPq, CAPES, FAPERGS, Transfertech Gestão de Inovações LTDA and URI Erechim for financial support and scholarships.
- Ballus CA, Quirantes-Piné R, Bakhouche A, Silva LF, Oliveira AF, Coutinho EF, Croce DM, Segura-Carretero A, Godoy HT (2015) Profile of phenolic compounds of Brazilian virgin olive oils by rapid resolution liquid chromatography coupled to electrospray ionization time-of-flight mass spectrometry (RRLC–ESI-TOF-MS). Food Chem 170:366CrossRefGoogle Scholar
- Jacques RA, Krause LC, Freitas LS, Dariva C, Oliveira JV, Caramão EB (2007) Influence of drying methods and agronomic variables on the chemical composition of mate tea leaves (Ilex paraguariensis A. St.-Hil) obtained from high-pressure CO2 extraction. J Agric Food Chem 55:10081CrossRefGoogle Scholar
- Poling BE, Prausnitz JM, O’Connell JP (2001) The properties of gases and liquids, 5th edn. McGraw-Hill, New YorkGoogle Scholar
- Pomeranz Y (1982) Advances in cereal science and technology, vol 5. Am. Assoc. Cereal Chem, St. PaulGoogle Scholar
- Shahidi F, Naczk M (1995) Food phenolics: sources, chemistry, effects, applications. Technomic Publishing Company, Incorporated, LancasterGoogle Scholar
- Sung YY, Yang WK, Kim HK (2012) Antiplatelet, anticoagulant and fibrinolytic effects of Litchi chinensis Sonn. extract. Mol Med Rep 5:721Google Scholar
- Tonini H, Kaminski PE (2009) Processo Tradicional da Extração e Usos do Óleo da Andiroba em Roraima. EMBRAPA (Empresa Brasileira de Pesquisa Agropecuária), Boa VistaGoogle Scholar