Triacylglyceride, Antioxidant and Antimicrobial Features of Virgin Camelliaoleifera, C. reticulata and C. sasanqua Oils

Molecules

Xesús Feás¹  Leticia M. Estevinho²  Carmen Salinero³  Pilar Vela³  Mar໚ J. Sainz⁴  Mar໚ Pilar Vázquez-Tato¹ 

[1] Department of Organic Chemistry, Faculty of Sciences, University of Santiago de Compostela, E-27080 Lugo, Spain; E-Mails:;CIMO-Mountain Research Center, Agricultural College of Bragança, Polytechnic Institute of Bragança, Campus Santa Apolónia, E 5301-855 Bragança, Portugal; E-Mail:;Areeiro Phytopathological Station, Pontevedra Deputation, Subida a la Robleda s/n, E36153 Pontevedra, Spain; E-Mails:;Department of Plant Production, Faculty of Veterinary Sciences, University of Santiago de Compostela, E-27002 Lugo, Spain; E-Mail:

关键词: antioxidant potential;    antimicrobial activity;    Camellia;    oil;    triacylglyceride;   

DOI  :  10.3390/molecules18044573

来源: mdpi

【 摘 要 】

Virgin oils obtained from seeds of Camellia oleifera (CO), Camellia reticulata (CR) and Camellia sasanqua (CS) were studied for their triacylglyceride composition, antioxidant and antimicrobial activities.Levels of fatty acids determined by ¹H-nuclear magnetic resonance analysis were similar to those reported forolive oils (82.30%–84.47%; 5.69%–7.78%; 0.26%–0.41% and 8.04%–11.2%, for oleic, linoleic, linolenic and saturated acids, respectively). The CR oil showed the best antioxidant potential in the three in vitro models tested. With regard to EC₅₀ values (µg/mL), the order in DPPH radical-scavenging was CR (33.48) < CO (35.20) < CS (54.87). Effectiveness in reducing power was CR (2.81) < CO (3.09) < CS (5.32). IC₅₀ for LPO inhibition were 0.37, 0.52 and 0.75 µg/mL for CR, CO and CS, respectively. All the oils showed antimicrobial activity, and exhibited different selectivity and MICs for each microorganism tested (E. coli, B. cereus and C. albicans). B. cereus was the less sensitive species (MIC: 52.083 ± 18.042 for CO; 41.667 ± 18.042 for CR; 104.167 ± 36.084 for CS mg/mL) and the E. coli was the most sensitive to camellia oil’s effect. The standard gentamicin presented higher MIC for E. coli (4.2) than the CR (MIC= 2.6) and CO (MIC = 3.9) oils.

【 授权许可】

CC BY   
© 2013 by the authors; licensee MDPI, Basel, Switzerland.