Cuéllar-Torres Esther Angélica, Aguilera-Aguirre Selene, Del Carmen Bañuelos-González Miriam, Xoca-Orozco Luis Ángel, Ortiz-Basurto Rosa Isela, Montalvo-González Efigenia, Vega-Arreguín Julio, Chacón-López Martina Alejandra
Laboratorio Integral de Investigación en Alimentos, Tecnológico Nacional de México/Instituto Tecnológico de Tepic, Av. Tecnológico 2595, C.P. 63175 Tepic, Nayarit Mexico.
Departamento de Ingeniería Bioquímica, Tecnológico Nacional de México/Instituto Tecnológico Superior de Purísima del Rincón, Boulevard del Valle 2301, Guardarrayas Purísima del Rincón, Guanajuato, Mexico.
Food Sci Biotechnol. 2022 Jul 26;31(11):1411-1421. doi: 10.1007/s10068-022-01135-7. eCollection 2022 Oct.
The postharvest application of high degree of polymerization agave fructans (HDPAF) was tested, evaluating anthracnose disease, defense-related enzyme activities, and quality attributes in avocado fruit. Application of a 20% HDPAF solution showed a reduction in anthracnose severity (60%) and incidence (34%) compared to the other concentrations evaluated and the water-treated control. Polyphenoloxidase activity increased 4.6 times more 24 h after treatment. In addition, peroxidase and phenylalanine ammonia-lyase enzyme activity was 4.34 and 1.7 times higher than the control at 0.5 h after treatment. HDPAF retrieves the deceleration of both firmness loss and physiological weight loss compared to the control. Regarding quality parameters such as color, pH, total soluble solids, and titratable acidity, no significant differences were observed between treatments compared to the control; therefore, these parameters were not negatively affected by HDPAF treatments, but a positive effect on the induction of the defense system is shown.
对高聚龙舌兰果聚糖（HDPAF）采后应用进行了测试，评估鳄梨果实的炭疽病、防御相关酶活性和品质属性。与其他评估浓度及水处理对照相比，20% HDPAF溶液的应用使炭疽病严重程度降低了60%，发病率降低了34%。处理后24小时，多酚氧化酶活性增加了4.6倍。此外，处理后0.5小时，过氧化物酶和苯丙氨酸解氨酶活性分别比对照高4.34倍和1.7倍。与对照相比，HDPAF减缓了果实硬度损失和生理失重。关于颜色、pH值、总可溶性固形物和可滴定酸度等品质参数，与对照相比，各处理之间未观察到显著差异；因此，这些参数未受到HDPAF处理的负面影响，反而显示出对防御系统诱导的积极作用。
