期刊
FOOD CHEMISTRY
卷 180, 期 -, 页码 219-226出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.foodchem.2015.02.031
关键词
Antioxidant capacity; Elicitation; Hydrogen peroxide; Phenylpropanoids; Sprouting
This study evaluates the optimal conditions for elicitation with H2O2 for improving the antioxidant capacity of lentil sprouts. Generally, except for 3-day-old sprouts, elicitation increased phenolic content (in respect to the control). The highest phenolic content was determined for 2-day-old sprouts treated with 15 mM H2O2 (0.71 mg/g f.m.). All the studied modifications increased the antioxidant potential of sprouts. The highest elevation (3.2-fold) was found for 5-day-old sprouts (single 15 mM H2O2 treatment). A significant increase was also found on the 2nd and 4th days (2.13- and 2.14-fold, respectively). Elicitation induced tyrosine and phenylalanine ammonia-lyases activities. H2O2 treatments induced the activity of catalase - especially for 2-day-old sprouts treated with 150 mM H2O2 (597 U/g f.m.). Elicitation with H2O2 is a useful tool for designing some features of sprouts. Phenolic content and antioxidant capacity are strongly affected by concentration of the elicitor, and time and intervals of its application. (C) 2015 Elsevier Ltd. All rights reserved.
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