Natl. Inst. of Food Science and Technology, Univ. of Agriculture Faisalabad, Pakistan.
J Food Sci. 2012 Mar;77(3):T58-61. doi: 10.1111/j.1750-3841.2011.02582.x. Epub 2012 Feb 13.
Glycoalkaloids (α-solanine and α-chaconine) are naturally occurring toxic compounds in potato tuber (Solanum tuberosum L.) that cause acute intoxication in humans after their consumption. Present research was conducted to evaluate α-chaconine, α-solanine, and total glycoalkaloids (TGAs) contents in the peel and flesh portions by high-performance liquid chromatography method in selected Pakistani potato cultivars. The α-solanine content varies 45.98 ± 1.63 to 2742.60 ± 92.97 mg/100 g of dry weight (DW) in peel and from 4.01 ± 0.14 to 2466.56 ± 87.21 mg/100 g of DW in flesh. Similarly, α-chaconine content varied from 4.42 ± 0.16 to 6818.40 ± 211.07 mg/100 g of DW in potato peel and from 3.94 ± 0.14 to 475.33 ± 16.81 mg/100 g DW in flesh portion. The TGA concentration varied from 177.20 ± 6.26 to 5449.90 ± 192.68 mg/100 g of DW in peel and from 3.08 ± 0.11 to 14.69 ± 0.52 mg/100 g of DW in flesh portion of all the potato cultivars tested. All the potato cultivars contained lower concentration of TGA than the limits recommended as safe, except 2 cultivars, that is FD8-3 (2539.18 ± 89.77 mg/100 g of DW) and Cardinal (506.16 ± 17.90 mg/kg). The dietary intake assessment of potato cultivars revealed that Cardinal, FD 35-36, FD 8-3, and FD 3-9 contained higher amount of TGA in whole potato, although FD 8-3 only possessed higher content of TGA (154.93 ± 7.75) in its flesh portion rendering it unfit for human consumption. Practical Application: This paper was based on the research conducted on toxic compounds present in all possible potato cultivars in Pakistan. Actually, we quantify the toxic compounds (glycoalkaloids) of potato cultivars through HPLC and their dietary assessment. This paper revealed safety assessment and their application in food industries especially potato processing.
茄碱（α-茄碱和α-卡茄碱）是马铃薯块茎（Solanum tuberosum L.）中天然存在的有毒化合物，人食用后会导致急性中毒。本研究采用高效液相色谱法测定了巴基斯坦部分马铃薯品种果皮和果肉中α-卡茄碱、α-茄碱和总茄碱（TGA）的含量。果皮中α-茄碱含量为 45.98±1.63 至 2742.60±92.97mg/100g 干重（DW），果肉中含量为 4.01±0.14 至 2466.56±87.21mg/100g DW。同样，α-卡茄碱在马铃薯果皮中的含量为 4.42±0.16 至 6818.40±211.07mg/100g DW，果肉中的含量为 3.94±0.14 至 475.33±16.81mg/100g DW。TGA 浓度在果皮中为 177.20±6.26 至 5449.90±192.68mg/100g DW，在果肉中为 3.08±0.11 至 14.69±0.52mg/100g DW。所有测试的马铃薯品种的 TGA 浓度均低于推荐的安全限量，只有 2 个品种除外，即 FD8-3（2539.18±89.77mg/100g DW）和 Cardinal（506.16±17.90mg/kg）。对马铃薯品种的膳食摄入量评估显示，Cardinal、FD35-36、FD8-3 和 FD3-9 整个马铃薯中的 TGA 含量较高，尽管 FD8-3 仅在其果肉部分含有较高含量的 TGA（154.93±7.75），不适合人类食用。实际应用：本文基于对巴基斯坦所有可能的马铃薯品种中存在的有毒化合物的研究。实际上，我们通过 HPLC 定量测定了马铃薯品种中的有毒化合物（茄碱）及其膳食评估。本文揭示了安全性评估及其在食品工业特别是马铃薯加工中的应用。
