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Table 1 Quantities of amino compounds in μmol/L in juices made from the pulp of edible fruits of prickly pears ( Opuntia ficus-indica ) determined by automated ion-exchange chromatography

From: Taurine is absent from amino components in fruits of Opuntia ficus-indica

  1 2 3 4 5 6 7 8 9 10 11 12 13 14 Range
Tau ND ND ND ND ND ND ND ND ND ND ND ND ND ND ND
Urea 559.0 423.2 4702.2 16069.6 9520.3 9718.7 5230.7 4963.7 11057.2 2925.3 1293.8 9086.6 3895.6 4915.0 432 - 16070
Asp 808.9 460.0 330.1 1095.5 1295.0 730.6 686.8 789.4 849.0 883.2 830.3 857.2 1113.1 1089.7 330 - 12 95
Thr 97.2 47.4 27.0 189.5 125.9 169.7 150.5 141.3 137.3 171.4 134.1 54.8 122.0 121.8 27 - 190
Ser 868.8 475.1 323.7 1421.0 1150.0 973.4 1641.5 1740.1 174.3 927.7 752.7 894.2 1107.2 1101.4 174 - 1740
Asn 142.5 61.4 52.5 374.6 309.1 294.9 351.1 313.4 345.0 314.2 261.5 267.5 235.0 222.2 53 - 374
Glu 113.4 215.3 153.8 55.6 ND 96.0 31.3 41.7 54.9 127.3 140.4 235.5 353.3 386.7 ND - 387
Gln 2746.6 3185.8 1578.8 1068.0 1086.2 NQ 2346.6 1920.9 1896.1 1427.2 1422.2 294.6 25.3 NQ 25 - 3186
Pro 4784.8 4542.2 7299.7 7934.3 5809.4 7267.6 6053.3 8807.2 11161.0 3004.9 2263.9 4544.5 8443.3 8549.0 2050 - 11161
Gly 102.0 45.6 87.9 253.6 191.4 256.1 323.7 271.6 334.3 179.3 141.5 48.1 107.9 103.3 48 - 334
Ala 474.2 220.2 361.2 316.5 255.6 269.0 399.2 173.3 239.1 356.8 322.2 224.6 666.0 676.2 173 - 676
Cit ND 18.2 39.1 283.2 110.35 79.5 52.2 55.6 145.3 21.7 16.7 62.2 64.5 80.3 ND - 283
Val 225.8 118.2 65.5 385.6 315.0 356.0 289.4 278.1 338.5 193.2 163.4 113.9 361.1 357.6 66 - 386
Cys ND ND 5.9 6.6 4.1 9.4 11.2 5.1 10.2 28.2 22.0 3.6 ND ND ND - 28
Met 120.3 43.8 28.8 232.4 201.9 210.0 232.6 240.1 186.3 189.1 159.0 187.0 312.9 311.5 29 - 313
Ile 167.8 98.1 54.8 426.9 363.0 499.8 207.4 218.9 252.9 218.2 187.4 79.7 298.0 306.5 55 - 500
Leu 237.6 142.8 86.0 359.6 261.7 346.4 272.6 233.4 240.3 317.0 259.1 45.4 128.5 131.7 45 - 360
Tyr 580.7 142.3 125.3 224.9 194.0 319.6 175.3 164.1 226.3 150.3 131.7 45.9 209.1 227.4 46 - 581
Phe 137.7 112.1 85.3 534.5 499.1 525.0 402.5 333.3 395.2 336.6 268.5 304.6 393.1 401.0 85 - 535
ß-Ala ND ND ND ND ND ND 33.0 26.6 42.3 ND 17.3 ND 62.7 71.6 ND - 72
GABA 1850.6 1063.8 1045.3 4220.4 3705.5 2556.7 3142.3 3445.6 3780.9 1238.2 1088.6 887.3 1862.4 1930.0 887 - 4220
His 600.5 810.1 145.6 668.6 511.0 769.7 531.5 563.4 675.6 357.9 302.7 330.6 304 ND ND - 1456
Trp 65.1 55.6 93.4 151.7 ND 206.0 ND ND 140.7 131.8 114.2 142.1 ND 73.0 ND - 152
Orn 6.0 9.2 3.9 15.6 3.9 ND 12.9 9.6 15.7 7.0 5.8 2.5 ND ND ND - 16
Lys 255.6 180.8 151.8 276.0 179.1 269.2 355.0 267.1 308.5 277.1 229.7 35.6 42.6 48.4 36 - 309
NH3 118.2 144.48 723.4 221.7 197.2 221.1 1217.7 543.5 922.4 552.4 490.3 476.4 2051.9 1331.8 118 - 2052
Eta (++) (++) (++) 121.5 82.6 98.5 175.3 71.4 103.3 186.8 168.6 65.5 99.2 117.7 66 - 187
Arg 254.5 196.0 503.3 456.6 246.0 255.7 987.4 625.3 848.7 208.7 169.4 233.7 138.0 138.9 138 - 987
  1. 1 Green fruit, 2 orange fruit, 3 red fruit (from Sicily); 4-6 orange fruits (from Sicily); 7-9 orange fruits (from Silicy); 10, 11 two orange-red fruits (from the Republic of South Africa); 12, orange fruit (from the Middle East); 13, 14, two different batches of commercial juices from Opuntia ficus-indica; ND, not detected; NQ, not quantified; Eta (++), present in fruit juices 1–3 but not quantified; range, rounded values.