Research Article
Chemical Composition, Antibacterial, Antifungal and Antidiabetic Activities of Ethanolic Extracts of Opuntia dillenii Fruits Collected from Morocco
Table 1
Linearity of phenolic compounds standards and sensitivity of the HPLC-DAD method.
| | N° | Compounds | Concentration range (mg/mL) | Linear regression | ra | LODb (mg/mL) | LOQc (mg/mL) |
| | 1 | Gallic acid | 0.2–1 | y = 904.2x + 40.6 | 0.99 | 0.02 | 0.05 | | 2 | Catechin | 0.2–1 | y = 2784.3x + 133.3 | 0.99 | 0.05 | 0.16 | | 3 | 4-Hydroxybenzoic acid | 0.2–1 | y = 3406.7x + 235.1 | 0.99 | 0.01 | 0.03 | | 4 | Vanillic acid | 0.2–1 | y = 2040.9x + 124.8 | 0.99 | 0.03 | 0.09 | | 5 | Caffeic acid | 0.2–1 | y = 24178x + 522.4 | 0.99 | 0.01 | 0.02 | | 6 | Syringic acid | 0.2–1 | y = 14815x + 177.8 | 0.99 | 0.01 | 0.03 | | 7 | Vanillin | 0.2–1 | y = 1622x + 91.9 | 0.99 | 0.02 | 0.07 | | 8 | p-Coumaric acid | 0.2–1 | y = 4265.3x + 40.4 | 0.99 | 0.02 | 0.05 | | 9 | Sinapic acid | 0.2–1 | y = 1052.4x + 34.2 | 0.99 | 0.03 | 0.09 | | 10 | Ferulic acid | 0.2–1 | y = 987.9x + 3.5 | 0.99 | 0.02 | 0.06 | | 11 | Naringin | 0.2–1 | y = 443.3x + 15.3 | 0.99 | 0.01 | 0.03 | | 12 | Rutin | 0.2–1 | y = 578.4x + 8.3 | 0.99 | 0.01 | 0.04 | | 13 | Salicylic acid | 0.2–1 | y = 815.1x + 12.2 | 0.99 | 0.03 | 0.08 | | 14 | Quercetin | 0.2–1 | y = 7989.6x + 116.2 | 0.99 | 0.02 | 0.05 | | 15 | Cinnamic acid | 0.2–1 | y = 828.1x − 18.1 | 0.99 | 0.05 | 0.16 | | 16 | Quercetin 3-O-β-D-glucoside | 0.2–1 | y = 1090.6x + 15.2 | 0.99 | 0.02 | 0.07 | | 17 | Kaempferol | 0.2–1 | y = 1000.9x + 12.5 | 0.99 | 0.03 | 0.09 | | 18 | Chalcone | 0.2–1 | y = 2666x + 5.1 | 0.99 | 0.01 | 0.04 |
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a, Correlation coefficients of the regression equation. b, LOD limit of detection. c, LOQ limit of quantification.
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