Table 1.
Cooking Method | Amino Acids † | Sugar and Sugar Derivatives | Organic Acids | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Oxo- Proline |
Glu | Val | Pro | Ser | Ile | Ala | Fructose | Glucose | Sucrose | myo-Inositol | Quinic Acid | ||
Raw | 0.58 * | 0.42 * | 0.94 | 1.06 | 0.28 * | 0.91 * | 1.35 | ||||||
Boiling | 2 min | 0.77 * | 0.35 * | 0.96 * | 1.09 * | 0.26 * | 0.90 * | 1.35 * | |||||
5 min | 0.95 | 0.43 * | 0.80 | 1.09 | 0.37 * | 0.84 | 1.73 | ||||||
Steaming | 2 min | 0.71 * | 0.40 * | 0.49 * | 0.40 * | 0.39 * | 0.38 * | 1.05 | 0.32 * | 0.74 * | 1.72 * | ||
5 min | 0.70 * | 0.35 * | 0.43 * | 0.35 * | 0.40 * | 0.26 * | 0.90 * | 0.26 * | 0.59 * | 1.54 * | |||
Micro- waving |
2 min | 0.46 * | 0.43 * | 0.48 | 0.37 * | 0.36 * | 0.69 * | 0.98 | 1.05 * | 0.26 * | 0.76 * | 2.04 * | |
5 min | 0.62 * | 0.57 * | 0.57 * | 0.57 * | 0.56 * | 0.86 * | 1.31 * | 1.38* | 0.49 * | 1.02 | 2.33 * |
† Abbreviations of amino acids: (1) Glu = glutamic acid, (2) Val = valine, (3) Pro = proline, (4) Ser = serine, (5) Ile = isoleucine, and (6) Ala = alanine. Asterisk (*) = detected significant difference with or without MeJA treatment by Student’s T-test at p ≤ 0.05 based on the peak intensity (n = 3).