Guamán-Balcázar María Del Cisne, Montes Antonio, Valor Diego, Coronel Yorky, De Los Santos Desireé M, Pereyra Clara, Martínez de la Ossa Enrique J
Department of Chemical Engineering and Food Technology, Faculty of Sciences, University of Cádiz, International Excellence Agrifood Campus (CeiA3), 11510 Puerto Real, Spain.
Departamento de Química, Universidad Técnica Particular de Loja, San Cayetano Alto sn, AP, Loja 1101608, Ecuador.
Materials (Basel). 2022 Aug 27;15(17):5934. doi: 10.3390/ma15175934.
Mango is one of the most important, medicinal tropical plants in the world from an economic point of view due to the presence of effective bioactive substances as co-products in its leaves. The aim of this work was to enhance the impregnation of natural antioxidants from mango leaves into a porous ceramic matrix. The effects of pressure, temperature, impregnation time, concentration of the extract and different porous silica on impregnation of phenolic compounds and antioxidant activity were analyzed. The volume of the pressurized fluid extract and amount of porous ceramic matrix remained constant. The best impregnation conditions were obtained at 6 h, 300 bar, 60 mg/mL, 35 °C and with MSU-H porous silica. The results indicated that increasing the pressure, concentration of the extract and temperature during impregnation with phenolic compounds such as gallic acid and iriflophenone 3-C (2-O-p-hydroxybenzolyl)-β-D-glucoside increased the antioxidant activity and the amount of total phenols.
从经济角度来看,芒果是世界上最重要的药用热带植物之一,因为其叶子中含有有效的生物活性物质作为副产品。这项工作的目的是提高芒果叶中天然抗氧化剂在多孔陶瓷基质中的浸渍量。分析了压力、温度、浸渍时间、提取物浓度和不同多孔二氧化硅对酚类化合物浸渍和抗氧化活性的影响。加压流体提取物的体积和多孔陶瓷基质的量保持恒定。在6小时、300巴、60毫克/毫升、35℃以及使用MSU-H多孔二氧化硅的条件下获得了最佳浸渍条件。结果表明,在用没食子酸和异甘草素3-C(2-O-对羟基苯甲酰基)-β-D-葡萄糖苷等酚类化合物浸渍过程中,增加压力、提取物浓度和温度会提高抗氧化活性和总酚含量。