Decoding the enhanced antioxidant activities of the combined small berry pomaces by widely targeted metabolomics analysis
Xinkun Wang,
Peng Deng,
Anwei Cheng,
Sujun Sun,
Kaining Sun,
Zhou Sun,
Xiaoguang Zhan,
Congjing Zhang,
Xiaodan Dong,
Lizeng Peng,
Chune Peng
Affiliations
Xinkun Wang
Key Laboratory of Novel Food Resources Processing /Key Laboratory of Agro-Products Processing Technology of Shandong Province/ Institute of Food & Nutrion Sciences and Technology, Shandong Academy of Agricultural Sciences, Jinan, Shandong, 250100, China
Peng Deng
Key Laboratory of Novel Food Resources Processing /Key Laboratory of Agro-Products Processing Technology of Shandong Province/ Institute of Food & Nutrion Sciences and Technology, Shandong Academy of Agricultural Sciences, Jinan, Shandong, 250100, China
Anwei Cheng
College of Food Science and Technology, Hunan Agricultural University, Changsha, 410128, China
Sujun Sun
Key Laboratory of Novel Food Resources Processing /Key Laboratory of Agro-Products Processing Technology of Shandong Province/ Institute of Food & Nutrion Sciences and Technology, Shandong Academy of Agricultural Sciences, Jinan, Shandong, 250100, China
Kaining Sun
Institute of Vegetables, Shandong Academy of Agricultural Sciences /Shandong Branch of National Improvement Center for Vegetables /Huang-Huai-Hai Region Scientific Observation and Experimental Station of Vegetables /Ministry of Agriculture and Rural Affairs, Shandong Key Laboratory of Greenhouse Vegetable Biology, Jinan, Shandong, 250100, China
Zhou Sun
Key Laboratory of Novel Food Resources Processing /Key Laboratory of Agro-Products Processing Technology of Shandong Province/ Institute of Food & Nutrion Sciences and Technology, Shandong Academy of Agricultural Sciences, Jinan, Shandong, 250100, China
Xiaoguang Zhan
Key Laboratory of Novel Food Resources Processing /Key Laboratory of Agro-Products Processing Technology of Shandong Province/ Institute of Food & Nutrion Sciences and Technology, Shandong Academy of Agricultural Sciences, Jinan, Shandong, 250100, China
Congjing Zhang
Key Laboratory of Novel Food Resources Processing /Key Laboratory of Agro-Products Processing Technology of Shandong Province/ Institute of Food & Nutrion Sciences and Technology, Shandong Academy of Agricultural Sciences, Jinan, Shandong, 250100, China
Xiaodan Dong
Key Laboratory of Novel Food Resources Processing /Key Laboratory of Agro-Products Processing Technology of Shandong Province/ Institute of Food & Nutrion Sciences and Technology, Shandong Academy of Agricultural Sciences, Jinan, Shandong, 250100, China
Lizeng Peng
Key Laboratory of Novel Food Resources Processing /Key Laboratory of Agro-Products Processing Technology of Shandong Province/ Institute of Food & Nutrion Sciences and Technology, Shandong Academy of Agricultural Sciences, Jinan, Shandong, 250100, China; Corresponding author.
Chune Peng
Key Laboratory of Novel Food Resources Processing /Key Laboratory of Agro-Products Processing Technology of Shandong Province/ Institute of Food & Nutrion Sciences and Technology, Shandong Academy of Agricultural Sciences, Jinan, Shandong, 250100, China; Corresponding author.
Small berry pomaces (SBPs) are poorly utilized as an inexpensive source of bioactive compounds. This study investigated the impact of compounding treatment on nutritional and antioxidant characteristics of combined SBPs, in comparison with single SBP. The results showed that the amounts of protein, minerals, dietary fiber (DF) and anthocyanidins were significantly (p < 0.05) higher in combined SBPs than in combined fruits. Moreover, the combined SBPs were characterized by an elevated abundance of minerals and anthocyanidins (6 kinds, and 5 kinds, respectively), substantiating the effectiveness of compounding treatment on SBP nutrition. A total of 776 secondary phytochemicals were detected in combined SBPs by a widely targeted metabolomics approach. Each SBP contained approximately 100 kinds of unique natural antioxidants. Furthermore, the combined SBPs group had the highest antioxidant activity compared with single SBP. Meanwhile, the antioxidant activities determined in combined SBPs were higher than arithmetic mean value of single SBP. The synergism and interaction of active components in different sources of SBPs play vital role in the high antioxidant capacity of combined SBPs. All the results provide reference for the comprehensive development and utilization of fruit residues. The SBPs should be highly prized for their substantial amount of nutritional and bioactive constituents, including protein, DF, essential minerals and secondary metabolites. These secondary metabolites are positively associated with antioxidant benefits. The present study summarizes the knowledge about bioactive compounds and antioxidant activities of combined SBPs group and discusses the relevant mechanisms. A conclusion can be educed that combined process is an effective way to improve properties of the pomaces.
