Functional Properties and Antioxidant Activity of Morus alba L. Leaves var. Zolwinska Wielkolistna (WML-P)—The Effect of Controlled Conditioning Process

• DOI: 10.3390/antiox9080668
• Publication Date: 2020-07-27T08:39:50Z
• Authors: Monika Przeor; Ewa Flaczyk; Dominik Kmiecik; Maciej S. Buchowski; Halina Staniek; Aneta Tomczak-Gra...; Joanna Kobus-Ciso...; Anna Gramza-Micha...; Joanna Foksowicz-...
• Keywords: 0301 basic medicine; ABTS test; DPPH test; <i>Morus alba</i>; antioxidant activity; RM1-950; flavonols; Article; 03 medical and health sciences; conditioning; DNJ; Therapeutics. Pharmacology; semi-technical processing; phenolic acids; polyphenols

This study evaluated the effect of adding a new step, termed conditioning, to traditional processing leaves from Morus alba var. zolwinska wielkolistna grown in Poland (WML-P). modeled on tea processing, was conducted controlled environment semi-technical scale. The primary goal evaluate WML-P conditioning for 1–4 h at 32–35 °C content bioactive compounds (total phenolics, phenolic acids, flavonols, 1-deoxynojirimycin) and antioxidant activity (radical scavenging against DPPH, capacity, chelating ferric reducing potential) lyophilized extracts. For first time extracts comprehensively characterized by assessing dietary fiber fractions, fatty amino macro- microelements chlorophyll content. Compared process, step resulted an increased total phenolics content, radical ability quench 2,2-diphenyl-1-picrylhydrazyl (DPPH•) iron-chelating beneficial depended time. highest flavonols acids were found after 2-h conditioning. We concluded that results getting extract with high activity.