Contents of γ-aminobutyric acid (GABA) in potatoes and processed potato products
Contents of γ-aminobutyric acid (GABA) in potatoes and processed potato products
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DOI：
10.3136/nskkk.53.514
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发表时间：
2006-01-01
期刊：
影响因子：
0.2
通讯作者：
Koga, Hidenori
中科院分区：
文献类型：
--
作者：
Nakamura, Kazuya;Nara, Kazuhiro;Koga, Hidenori
研究了马铃薯（Solanum tuberosum L.）和市售马铃薯加工产品中的残留物。22个马铃薯品种的游离氨基酸总量和GABA含量分别为239 ~ 819 mg/100 g FW和16 ~ 61 mg/100 g FW。在加工食品中经常使用的“丰代”品种中，游离氨基酸总量与GABA含量之间也存在正相关（r=0.8048）。GABA的量约占游离氨基酸总量的7 - 8%。从分析由马铃薯制成的食品的GABA含量，在仅由马铃薯制成的产品的100 g FW中发现约61 mg的GABA，在主要由马铃薯与混合面粉制成的产品的100 g FW中发现约20 mg的GABA，并且在不含马铃薯的产品中发现仅几mg的GABA。结果表明，加工马铃薯产品中的GABA含量随着马铃薯含量的增加而增加，这些结果表明，GABA可以通过食用马铃薯和马铃薯制成的食品摄入，用于各种目的。
The contents of gamma-aminobutyric acid (GABA) in potatoes (Solanum tuberosum L.) and in processed potato products on the market were studied. In 22 varieties of potato, the total content of free amino acids and GABA content were found to vary from 239 to 819 mg/100 g FW and from 16 to 61 mg/100 g FW, respectively. There was also a positive correlation (r=0.8048) between the total content of free amino acids and GABA content in the "Toyoshiro" variety that is always used in processed foods. The amount of GABA accounted for about 7 to 8% of the total amount of free amino acids. From analysis of the GABA contents of food products made from potatoes, about 61 mg of GABA was found in 100 g FW of a product made only from potatoes, about 20 mg was found in 100 g FW of a product made mainly from potatoes with mixed flour, and only a few mg was found in a product containing no potato. It was thus shown that the GABA content in processed potato products increases as the potato content increases.These results suggest that GABA can be ingested, for various purposes, by consumption of potatoes and food products made from potatoes.