Efecto del tiempo de secado en hojas de níspero (Achras zapota) y relación de solvente para la obtención de compuestos antioxidantes

The present research aims to evaluate the effect of the drying time in medlar leaves (Achras zapota) and the solvent ratio to obtain antioxidant compounds by maceration in the city of Calceta, a bifactorial arrangement A2XB4 was used in Completely Random Design (DCA) with eight treatments and three repetitions, which resulted in 24 experimental units. For factor A (drying time) the following levels were used: a1=60 minutes and a2=70 minutes, while for factor B (96% solvent-distilled water ratio) they were: b1=20:80, b2= 40:60, b3=60:40, b4=80:20 relative to 100%. The variables evaluated were antioxidant capacity and total phenols for the extract obtained from the maceration and physicochemical analyzes were performed on the leaves. The variables that did not comply with the assumption of the ANOVA of Normality, the non-parametric Kruskal Wallis test was carried out and for the data analysis it was carried out using the Microsoft office Excel 2013 program and SPSS 21 free version. Within the analyzes that were carried out, it was determined that the best treatment was T4 (a1b4) with the 80:20 alcohol-water composition, obtaining a value of 21,5mg Ac. gallic/g for total phenols and antioxidant capacity with 21,333μmol ET/g. It was determined that a higher alcohol composition with a drying temperature of 37°C with a duration of 60min, a higher concentration of bioactive compounds is obtained in the 48-hour maceration.

• 第一著者: Cevallos Mendoza, Arnaldo Narcizo (author)
• その他の著者: Palacios Bravo, Edwin Ricardo (author)
• フォーマット: masterThesis
• 言語: spa
• 出版事項: 2021
• 主題: Compuestos bioactivos; Antioxidantes; Alcohol; Níspero; Secado; Maceración
• オンライン･アクセス: http://repositorio.espam.edu.ec/handle/42000/1364