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Research Article

Quantitative and qualitative analysis of bioactive components present in virgin coconut oil

, & |
Article: 1164929 | Received 28 Dec 2015, Accepted 08 Mar 2016, Published online: 21 Apr 2016

Figures & data

Table 1. Color, refractive Index, saponification value (mg KOH/g oil), iodine value (gI2/100g oil), specific gravity, and moisture (%) of HEVCO, CEVCO, and CCO

Table 2. Fatty acid composition (%) of HEVCO, CEVCO, and CCO

Table 3. Tocopherol (μg/g), polyphenols (μg/g), antioxidant activity (%), monoglycerides (%), and phytosterol (μg/g) content in HEVCO, CEVCO, and CCO

Figure 1. Typical diagram of FTIR spectra for HEVCO, CEVCO, and CCO.

Figure 1. Typical diagram of FTIR spectra for HEVCO, CEVCO, and CCO.

Table 4. Concentration of phenolic acids (μg/g) in HEVCO, CEVCO, and CCO

Figure 2. Typical diagram of DSC thermogram of crystallization peak (a) and melting peak (b) in HEVCO, CEVCO, and CCO.

Figure 2. Typical diagram of DSC thermogram of crystallization peak (a) and melting peak (b) in HEVCO, CEVCO, and CCO.

Figure 3. HPLC chromatogram of the phenolic fraction of CEVCO (a), CCO (b), and HEVCO (c).

Figure 3. HPLC chromatogram of the phenolic fraction of CEVCO (a), CCO (b), and HEVCO (c).

Figure 4. Reaction of hydroxyl groups of DG with 2-chloro4,4,5,5-tetramethyl-1,3-dioxa-2-phospholane (2-CITMDOP) & Structures of different phosphitylated mono and diesters of glycerol.

Figure 4. Reaction of hydroxyl groups of DG with 2-chloro4,4,5,5-tetramethyl-1,3-dioxa-2-phospholane (2-CITMDOP) & Structures of different phosphitylated mono and diesters of glycerol.

Figure 5. A typical 31P NMR spectrum of standard 1-monoglycerides (1-MG), 1, 2-diglycerides (1, 2-DGs), 1, 3-diglycerides (1, 3-DGs), and sterols.

Figure 5. A typical 31P NMR spectrum of standard 1-monoglycerides (1-MG), 1, 2-diglycerides (1, 2-DGs), 1, 3-diglycerides (1, 3-DGs), and sterols.

Figure 6. A typical 31P NMR spectrum of HEVCO showing 1-monoglycerides (1-MG), 1, 2-diglycerides (1, 2-DGs), 1, 3-diglycerides (1, 3-DGs), and sterols.

Figure 6. A typical 31P NMR spectrum of HEVCO showing 1-monoglycerides (1-MG), 1, 2-diglycerides (1, 2-DGs), 1, 3-diglycerides (1, 3-DGs), and sterols.

Figure 7. A typical 31P NMR spectrum of CEVCO showing 1-monoglycerides (1-MG), 1, 2-diglycerides (1, 2-DGs), 1, 3-diglycerides (1, 3-DGS), and sterols.

Figure 7. A typical 31P NMR spectrum of CEVCO showing 1-monoglycerides (1-MG), 1, 2-diglycerides (1, 2-DGs), 1, 3-diglycerides (1, 3-DGS), and sterols.

Figure 8. A typical 31P NMR spectrum of CCO showing 1-monoglycerides (1-MG, 1, 2-diglycerides (1, 2-DGs), 1, 3-diglycerides (1, 3-DGS), and sterols.

Figure 8. A typical 31P NMR spectrum of CCO showing 1-monoglycerides (1-MG, 1, 2-diglycerides (1, 2-DGs), 1, 3-diglycerides (1, 3-DGS), and sterols.

Table 5. Concentration of 1-monoglycerides (mg/ml), 1, 2-diglycerides (mg/ml), 1, 3-diglycerides (mg/ml), and sterols (mg/ml) in HEVCO, CEVCO, and CCO by 31P NMR