增强的H2S生物发生,其后的收获后应用,通过在冷藏期间促进按中多种抗氧化剂保护系统来延缓衰老的发展
Mahtab Moradi Digehsara1, Rahim Naghshiband Hassani1, Nasser Mahna1
1Department of Horticultural Sciences, Faculty of Agriculture, University of Tabriz, Tabriz, Iran.
概括
硫化 (H2S) 雾化通过减少色和软化,有效地保持了按的质量. 这种方法可以增强抗氧化防御和酶活性,延长保质期并保持新鲜度.
科学领域:
- 收获后技术 收获后技术
- 食品科学 食品科学 食品科学
- 生物化学 生物化学
背景情况:
- 扣 (Agaricus bisporus) 在收获后遭受快速质量损失,主要是由于表面色和衰老.
- 这种恶化限制了它们的分布潜力和储存时间.
- 保持的质量需要有效的策略来缓解这些收获后的变化.
研究的目的:
- 为了评估硫化 (H2S) 雾化在保护质量的有效性.
- 调查H2S蒸发在冷藏期间对质量和生化属性的影响.
- 为了确定H2S雾化中NaHS的最佳度.
主要方法:
- 按是用0.5毫米硫化 (NaHS) 的最佳度进行烟的.
- 蒸和对照在4°C和80-90%的相对湿度下储存了15天.
- 分析了定性属性 (棕色指数,减肥,软化) 和生化参数 (酶活性,抗氧化剂含量).
主要成果:
- 与对照组相比,H2S烟雾化显著减少了的色,体重减轻和软化.
- 细胞膜稳定性得到改善,这可以通过较低的电解质泄漏,甲 (MDA) 和过氧化 (H2O2) 水平来表明.
- 总化合物,抗氧化活性,以及诸如氨氨酸酶 (PAL),过氧化酶 (POD),催化酶 (CAT),超氧化失调酶 (SOD),谷氨缩小酶 (GR) 和谷氨过氧化酶 (GPx) 等酶的活性增加.
- 聚氧化酶 (PPO) 的活性下降,而内源的H2S水平,谷氨 (GSH) 和相关的酶活性 (CBS,CSE,CS,LCD,DCD) 则升高.
结论:
- 在0.5mM NaHS的H2S烟雾化是一种有效的方法,可以在冷藏期间减缓老化并保持按的质量.
- 治疗增强了的抗氧化防御系统,包括酶和非酶.
- 这种方法有望延长的收获后保质期和可销售性.
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