Chemical composition and bioactive compounds of Cucurbitaceae seeds: Potential sources for new trends of plant oils
Download 0.8 Mb. Pdf ko'rish
|
Chemicalcompositionandbioactivecompoundsof
- Bu sahifa navigatsiya:
- Figure 1.
- Table 3 Fatty acid (%) and sterol composition (mg/kg oil) of Cucurbitaceae seed oils
- Table 4 Triglyceride profile (%) of the cold pressed Cucurbitaceae seed oils (%) Cucurbita pepo Citrullus lanatus
- Table 5
- Table 6 CieLab coordinates (L*, a*, b*) of cold pressed Cucurbitaceae seed oils L* a* b*
- Cucumis melo
H
e at Fl o w (m W/m g) Temperature (°C) A -10 -8 -6 -4 -2 0 2 4 6 -60 -40 -20 0 20 40 60 80 100 H e at Fl o w (m W/g) Temperature (°C) B -10 -8 -6 -4 -2 0 2 -60 -40 -20 0 20 40 60 80 100 H e at Fl o w (m W/g) Temperature (°C) C ACCEPTED MANUSCRIPT 30 Figure 1. Melting thermograms of pumpkin (var. ‘Essahli’) (A), watermelon (var. ‘crimson’) (B), and melon (var.’ananas’) (C) seed oils. Table 1 Chemical characteristics (dry basis) of Cucurbitaceae seeds Component Cucurbita pepo Citrulluslanatus Cucumismelo Moisture content a 6.96 ± 0.99a 7.28 ± 0.81c 7.50 ± 0.65b Crude oil a 35.53 ± 4.26a 19.23 ± 1.55c 28.44 ± 3.21b Crude protein a 40.00 ± 3.84a 19.41 ± 2.01c 26.15 ± 3.01b Total fibre a 12.89 ± 1.33c 48.26 ± 5.26a 34.08 ± 3.64b Total ash a 3.47 ± 0.51b 3.97 ± 0.54a 2.78 ± 0.26c Total sugars a 1.15 ± 0.11b 1.85 ± 0.16a 1.05 ± 0.11c Copper b 89.84 ± 7.84a 75.51 ± 6.58b 64.86 ± 5.49c Zinc b 8.42 ± 0.84b 6.80 ± 0.51c 9.40 ± 0.82a Iron b 7.07 ± 0.66b 5.17 ± 0.49c 23.13 ± 2.65a Manganese b 3.93 ± 0.25a 1.40 ± 0.15c 3.78 ± 0.35b Magnesium b 527.85 ± 54.23b 269.62 ± 28.39c 745.94 ± 71.56a Sodium b 189.81 ± 19.52c 302.00 ± 29.64b 400.00 ± 39.73a Calcium b 44.92 ± 4.68c 107.85 ± 9.64b 691.9 ± 71.49a Potassium b 471.7 ± 51.94c 750.50 ± 76.58b 994.04 ± 98.56a Phosphorus b 1471.24 ± 154.23a 787.31 ± 79.58c 1124.32 ± 141.23b Values with different letters are significantly different p < 0.05. Values are means ± Standard Deviations (SD) of three determinations. a % (w/w). b mg/100 g of dry weight flour. ACCEPTED MANUSCRIPT 31 Table 2 Physicochemical characterization of Cucurbitaceae seed oils Parameter Cucurbita pepo Citrullus lanatus Cucumis melo Refractive index (40°C) 1.47 ± 1.51a 1.46 ± 0.52a 1.45 ± 1.50a Specific gravity (25°C) 0.91 ± 0.08a 0.90 ± 0.08a 0.91± 0.07a Acid value (mg KOH/g oil) 8.95 ± 0.84c 9.50 ± 0.95b 9.60± 0.87a Saponification value (mg KOH/g oil) 176.5 ± 16.58a 174.2± 17.89b 178.30 ± 18.03a Iodine value (g I 2 /100g) 109.35 ± 9.56c 135.39± 12.84a 128.44± 11.91b Peroxide value (meq O 2 /kg oil) 9.56 ± 0.97a 8.16± 0.78b 1.04± 0.11c Unsaponifiable matter (%) 1.32± 0.12a 1.04± 0.11c 1.14± 0.12b IC 50 (µg/g) 64.71 ± 6.07b 159.64 ±15.47a 52.55 ± 5.08c Oil Stability index (h) 3.74± 0.32b 1.72± 0.14c 3.80 ± 0.41a Values with different letters are significantly different p < 0.05. Values are means ± Standard Deviations (SD) of three determinations. Table 3 Fatty acid (%) and sterol composition (mg/kg oil) of Cucurbitaceae seed oils Cucurbita pepo Citrullus lanatus Cucumis melo Fatty acids Composition Myristic (C14:0) tr. tr. tr. Palmitic (C16:0) 15.65± 1.66a 9.88± 0.86c 14.43± 1.51b Palmitoleic (C16:1) tr. tr. tr. Stearic (C18:0) 7.80± 0.84a 6.96± 0.71b 5.81± 0.62c Oleic (C18:1) 29.30± 3.25a 14.25± 1.56c 23.52± 2.94b Linoleic (C18:2) 45.90 ±5.02c 68.07± 7.56a 59.26± 6.54b Linolenic (C18:3) tr. tr. 0.22 Arachidic (C20:0) 0.56± 0.05a 0.26± 0.03b 0.24± 0.02c Eicosanoic (C20:1) tr. tr. tr. Behenic (C22:0) tr. tr. tr. Lignoceric (C24:0) tr. tr. tr. SAFA 24.01± 2.14a 17.10 ±1.85c 20.24± 3.12b MUFA 29.30± 3.25a 14.25± 1.87c 23.52± 2.94b PUFA 45.90± 5.28c 68.07± 7.89a 59.48± 6.34b Sterol Composition Cholesterol 7.76± 0.81a 5.05± 0.45b 3.61± 0.37c Brassicasterol 10.67± 9.57c 38.71± 4.25a 32.00 ± 2.4b 24-methylenecholesterol 2.43± 0.23a 0.84± 0.09c 1.55± 0.16b Campesterol 53.35± 6.25a 12.62± 1.32b 11.35± 2.01c Campestanol 2.91± 0.31a 2.10± 0.26b 2.06± 0.28c Stigmasterol 134.83± 12.58a 77.43± 7.84b 21.16± 3.13c Δ5-Avenasterol 1875.01± 160.25a 1319.21± 125.23c 1533.11± 164.89b Δ5,23-Stigmastadienol 11.64± 1.64a 4.21± 0.52c 5.16± 0.62b ACCEPTED MANUSCRIPT 32 Δ5,24- Stigmastadienol 14.55± 1.63c 158.22± 16.02a 17.55± 0.89b Δ7- Campesterol 46.08± 5.26a 24.83± 2.46c 32.00± 4.15b Δ7-Stigmastenol 523.32± 55.26a 21.88± 2.16c 98.08± 8.84b Δ7-Avenasterol 9.70 ± 0.87c 83.32± 9.56a 22.20± 3.29b Clerosterol 51.41± 6.03a 21.46± 2.64c 25.81± 3.84b Sitosterol 1923.51± 184.26c 2298.83± 241.02b 3248.48± 311.84a Sitostanol 182.36± 19.57a 139.28± 14.51b 107.88± 11.26c Total 4849.62± 487.26b 4208± 421.51c 5162± 489.67a Values with different letters are significantly different p < 0.05. Values are means ± Standard Deviations (SD) of three determinations. Table 4 Triglyceride profile (%) of the cold pressed Cucurbitaceae seed oils (%) Cucurbita pepo Citrullus lanatus Cucumis melo TAG molecules Composition LLnLn 8.93 ± 0.71c 29.15 ± 2.45a 18.38 ± 1.67b LLLn 0.28 ± 0.03c 0.69 ± 0.07a 0.55 ± 0.04b LLL 15.32 ± 1.66c 19.48 ± 2.12b 23.31 ± 2.57a OOLn 12.43 ± 1.42c 18.02 ± 2.05a 17.8 ± 1.86b PLLn 12.35± 1.31a 5.53± 0.65c 11.24± 1.13b OLL 18.40 ± 1.95a 16.30± 1.77b 15.06± 1.61c LnPO 4.80 ± 0.55a 1.64± 1.36b 1.08± 0.11c OOL 5.20 ± 0.49a 1.04± 0.12c 2.92± 0.28b POL 11.07± 1.26a 4.44± 0.52c 6.26± 0.71b PPL 5.44± 0.62a 1.96± 2.03b 1.27± 0.13c OOO 2.54± 0.28a 0.65± 0.08c 1.36± 0.15b SOL 1.59± 0.17a 1.10± 0.12b 0.53± 0.06c PLS 1.65± 0.18a nd 0.24± 0.04b P: palmitic acid, S: stearic acid, O: oleic acid, L: linoleic acid, Ln: linolenicacid,nd: not detected. Values with different letters are significantly different p < 0.05. Values are means ± Standard Deviations (SD) of three determinations. ACCEPTED MANUSCRIPT 33 Table 5: Phenolic compounds (µg/g) composition of Cucurbitaceae seed oils. Phenolic compounds Content (µg/g) Melon seed oil Phenolic acids Caffeic acid 1.98 ± 0.17e Vanillic acid 2.31 ± 0.24d Ferulic acid 134.83 ±12.54a Secoiridoids Oleuropein 2.31 ± 0.22d Lignans Pinoresinol 10.88 ± 1.26b Pumpkin seed oil Phenolic acids Caffeic acid 1.01 ± 0.11i Vanillic acid 1.32 ± 0.14g Lignans Pinoresinol 7.92 ± 0.81c Watermelon seed oil Phenolic acids Caffeic acid 1.33 ± 0.11f Lignans Pinoresinol 1.02 ± 0.11h ACCEPTED MANUSCRIPT 34 Values are means ± SD of three determinations. Mean values with different letters in the same column are significantly different. Table 6 CieLab coordinates (L*, a*, b*) of cold pressed Cucurbitaceae seed oils L* a* b* Cucurbita pepo 23.34 ± 0.49b 15 ± 0.14c 34.96 ± 0.72a Citrullus lanatus 90.93 ± 0.16a 0.12 ± 0.00c 0.56 ± 0.00b Cucumis melo 80.57 ± 0.81a -2.05 ± 0.18c 55.5 ± 0.25b Values with different letters are significantly different p < 0.05. Values are means ± Standard Deviations (SD) of three determinations. ACCEPTED MANUSCRIPT View publication stats View publication stats Download 0.8 Mb. Do'stlaringiz bilan baham: |
Ma'lumotlar bazasi mualliflik huquqi bilan himoyalangan ©fayllar.org 2024
ma'muriyatiga murojaat qiling
ma'muriyatiga murojaat qiling