探索从橄叶中提取多的可持续过程
Nils Leander Huamán-Castilla1,2, Karla Syndel Díaz Huamaní1,2, Yolanda Cristina Palomino Villegas1,2
1Escuela de Ingeniería Agroindustrial, Universidad Nacional de Moquegua, Prolongación Calle Ancash s/n, Moquegua 18001, Peru.
Foods (Basel, Switzerland)
|January 23, 2024
概括
橄叶废物可以通过压力液体提取 (PLE) 转化为有价值的抗氧化剂提取物. 最佳条件,比如在70°C时30%的乙醇,最大限度地回收聚,最大限度地减少糖.
科学领域:
- 农业科学 农业科学
- 食品化学 食品化学
- 绿色化学 绿色化学
背景情况:
- 橄叶,农业残留物,带来了环境挑战.
- 这些叶子富含多,对慢性疾病有潜在的健康益处.
- 由于化合物不稳定,聚烯提取面临技术障碍.
研究的目的:
- 评估压力液体提取 (PLE) 用于从橄叶中提取多.
- 评估绿色溶剂 (水-乙醇,水-糖醇) 和温度对提取物成分的影响.
- 为了获得含有多丰富的抗氧化剂提取物,含糖量减少.
主要方法:
- 使用了压力液体提取 (PLE).
- 水-乙醇和水-甘油混合物 (0-15%) 被用作绿色溶剂.
- 提取是在50°C和70°C进行的.
主要成果:
- 最佳条件是70°C的30%乙醇,产生最高的多含量 (15.29 mg GAE/g DW) 和抗氧化活性 (IC50: 5.49 mg/mL,ORAC: 1259 μmol TE/g DW).
- 这种情况还导致较低的葡萄糖 (3.75 mg/g DW) 和果糖 (5.68 mg/g DW) 含量,而不是糖混合物.
- 乙醇有利于弗拉瓦诺,斯蒂尔和西科伊里多伊德的回收,而甘油则增强了酸和黄醇的提取.
结论:
- 使用绿色溶剂进行压力液体提取,可有效利用橄叶废物.
- 溶剂成分显著影响提取的多类型和数量.
- 优化溶剂混合物和温度对于高效的多回收和减少糖共提取至关重要.
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