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Effects of different solvents on total phenolic and total anthocyanin contents of Clitoria ternatea L . petal and their anti‐cholesterol oxidation capabilities
Author(s) -
López Prado Adriana S.,
Shen Yixiao,
Ardoin Ryan,
Osorio Luis F.,
Cardona Jorge,
Xu Zhimin,
Prinyawiwatkul Witoon
Publication year - 2019
Publication title -
international journal of food science and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.831
H-Index - 96
eISSN - 1365-2621
pISSN - 0950-5423
DOI - 10.1111/ijfs.13953
Subject(s) - clitoria ternatea , anthocyanin , chemistry , petal , food science , polyphenol , emulsion , methanol , solvent , kaempferol , distilled water , antioxidant , quercetin , biochemistry , chromatography , botany , organic chemistry , biology , medicine , alternative medicine , pathology
Summary Clitoria ternatea (CT) petals have a high content of polyphenolic compounds, including anthocyanins, which protect against lipid oxidation. This research evaluated total phenolic content, total anthocyanin content and antioxidant activity of CT extracts obtained using distilled water, methanol, and/or water‐methanol combination (1:1) solvents after 6, 12 and 24 h soaking times. The predominant bioactive compounds of CT petals were kaempferol 3‐neohesperidoside (462.63 mg per 100 g), caffeoylmalic acid (137.59 mg per 100 g), and kaempferol 3‐(2G‐rhamnosylrutinoside) (129.28 mg per 100 g). The capacity of each solvent‐type extract obtained from 6 h soaking time to inhibit cholesterol oxidation was determined after 24 and 48 h in an emulsion model. At 6 h soaking time, the combination‐solvent yielded an extract with the highest anthocyanin content (63.9 μg mL −1 ) and inhibited 89.8% of 7‐ketocholesterol production in emulsion, compared to the control. This study demonstrated that CT petal extracts can enhance health benefits and lengthen shelf life of emulsion‐type products.