Park Sunghun, Elless Mark P, Park Jungeun, Jenkins Alicia, Lim Wansang, Chambers Edgar, Hirschi Kendal D
Department of Horticulture, Forestry and Recreation Resources, Kansas State University, Manhattan, KS 66506, USA.
Plant Biotechnol J. 2009 Jan;7(1):106-17. doi: 10.1111/j.1467-7652.2008.00379.x. Epub 2008 Oct 13.
Vegetables represent an attractive means of providing increased calcium nutrition to the public. In this study, it was demonstrated that lettuce expressing the deregulated Arabidopsis H(+)/Ca(2+) transporter sCAX1 (cation exchanger 1) contained 25%-32% more calcium than controls. These biofortified lettuce lines were fertile and demonstrated robust growth in glasshouse growth conditions. Using a panel of highly trained descriptive panellists, biofortified lettuce plants were evaluated and no significant differences were detected in flavour, bitterness or crispness when compared with controls. Sensory analysis studies are critical if claims are to be made regarding the efficacy of biofortified foods, and may be an important component in the public acceptance of genetically modified foods.
蔬菜是为公众提供更多钙营养的一种有吸引力的方式。在本研究中，已证明表达解除调控的拟南芥H⁺/Ca²⁺转运蛋白sCAX1（阳离子交换蛋白1）的生菜比对照含有多25%-32%的钙。这些生物强化生菜品系可育，且在温室生长条件下生长旺盛。使用一组训练有素的描述性评审员对生物强化生菜植株进行了评估，与对照相比，在风味、苦味或脆度方面未检测到显著差异。如果要对生物强化食品的功效提出主张，感官分析研究至关重要，并且可能是公众接受转基因食品的一个重要组成部分。
