High-Performance Liquid Chromatographic Analysis of Amino Acids in Ackee Fruit with Emphasis on the Toxic Amino Acid Hypoglycin A
作者:K. D. Golden、O. J. Williams、Y. Bailey-Shaw
DOI:10.1093/chromsci/40.8.441
日期:2002.9.1
High-performance liquid chromatography is used to determine the amino acid content of ripe and unripe ackee fruit. Specific emphasis is placed on the level of the toxic amino acid hypoglycin A (hyp-A) in the unripe and ripe ackee fruit and seed. Unripe samples are found to contain significantly higher quantities (P < 0.05) of hyp-A when compared with ripe samples. Uncooked unripe fruit is found to contain 124.4 ± 6.7 mg/100 g fresh weight and uncooked ripe fruit 6.4 ± 1.1 mg/100 g fresh weight. The seed of the uncooked unripe fruit is found to contain 142.8 ± 8.8 mg/100 g fresh weight, and the seed of uncooked ripe fruit has 106.0 ± 5.4 mg/100 g fresh weight. Boiling fruit in water for approximately 30 min is efficient in removing hyp-A from the edible arilli; however, low levels of 0.54 ± 0.15 mg/200 mL are detected in the water that was used to cook the ripe fruit. The average %recovery of the amino acids was 80.34%.
高效液相色谱用于测定成熟和未成熟的阿基果中的氨基酸含量。特别强调未成熟和成熟阿基果及种子中有毒氨基酸氢糖酸A(hyp-A)的水平。与成熟样本相比,未成熟样本中发现的hyp-A含量显著更高(P < 0.05)。未熟阿基果在未烹煮状态下的含量为124.4 ± 6.7 mg/100 g鲜重,而成熟阿基果则为6.4 ± 1.1 mg/100 g鲜重。未成熟阿基果的种子含有142.8 ± 8.8 mg/100 g鲜重,而成熟阿基果的种子为106.0 ± 5.4 mg/100 g鲜重。将水果在水中煮约30分钟能有效去除可食用的果肉中的hyp-A;然而,在煮熟成熟水果的水中仍检测到低水平的0.54 ± 0.15 mg/200 mL。氨基酸的平均回收率为80.34%。