收获后的光合作用动力学在新鲜切割的菜中
Priscille Steensma1, Alexey Shapiguzov2,3,4, Leevi Annala1
1Department of Food and Nutrition, University of Helsinki, Helsinki, Finland.
Physiologia plantarum
|August 4, 2025
概括
改良大气包装 (MAP) 迅速改变了生菜的光合作用. 储存期间的低光条件可以扭转这些变化,为延长新鲜切割的生菜的保质期和减少食物浪费提供了见解.
科学领域:
- 收获后生理学 收获后生理学
- 植物生物化学 植物生物化学
- 食品科学 食品科学 食品科学
背景情况:
- 新鲜切割的质量在收获后迅速下降.
- 有制冷的修改大气层包装 (MAP) 用于延长保质期.
- 在MAP下了解生菜生理学,特别是光线条件,对于改善储存至关重要.
研究的目的:
- 在MAP和冷藏下调查新鲜切割的生理变化.
- 确定黑暗与弱光对菜收获后生理学的影响.
- 确定延长包装生菜的保质期的策略.
主要方法:
- 使用了光谱和生化分析.
- 脉冲振幅调制 (PAM) 和OJIP动力学测定测量了光合作用光反应.
- 蓝色原生凝电泳评估了光合作用超级复杂物.
主要成果:
- 在1小时内,MAP诱导了光合作用光反应的快速,显著的变化.
- 这些变化与改变的电子转移和非光化学火 (qE-NPQ) 有关.
- 低光储存逆转了MAP诱导的光合作用损伤,与黑暗储存不同.
结论:
- 包装的生菜中的光合作用对光线条件敏感.
- MAP显著影响光合作用光反应,其影响因光暴露而有所不同.
- 低光条件显示,在零售展示期间保持质量的潜力.
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