Effective Utilization of Citrus unshiu Plant Waste Extracts with Lipase Inhibitory Activities

During the course of Citrus unshiu fruit cultivation, large amounts plant material including pruned leaves, thinned-out flowers and unripe are obtained; these materials generally considered unusable discarded as wastes. We have previously attempted to establish an effective use such wastes beneficial natural resources found that a methanolic extract leaves (CUL-ext) exhibited inhibitory activity against porcine pancreatic lipase. In this study, we sought identify further uses C. by determining lipase extracts thinning out (CUF-ext) (CUUF-ext). accordingly CUF-ext was superior CUUF-ext comparable observed using CUL-ext. Fractionation CUUF-ext, followed chromatographic analyses, revealed activities could be attributed, at least in part, flavonoids hesperidin, nobiletin, narirutin rutin. On basis present findings, propose that, addition which suitable for preparing constituents with activity.