Purification of fraction 1 CIRJP by prep-RPLC, semi-prep-RPLC and RP-HPLC. Crude RJPs weretested for their anti-apoptotic or antioxidant properties. Here, 1-3-kDa RJPs and 3-5-kDa RJPs were recognizedas active components (see below). Then, 1-3-kDa RJPs were purified using the prep-RPLC and semi-prep-RPLCmethod. We obtained three fractions from the 1-3-kDa RJPs (Fig. 2A). These three components were evaluatedby preliminarily bioactivity analysis such as a cell viability assay. Then, fraction 1 was chosen to be purified in thenext step, and fraction 1 A, 1 B and 1 C were obtained (Fig. 2B). Fraction 1 C was separated after the evaluation ofits bioactivity, and we acquired fraction 1 CI, 1 CII, 1 CIII (Fig. 2C). Finally, fraction 1 CI was recognized as activepeptides (see below). Even though we obtained purified RJPs from the original 1-3-kDa RJPs via different resolutionsof RP-HPLC, 1 CI still contained multiple types of peptides (Fig. 2D). Considering the limited amount 1 CIRJPs, we did not perform further purification procedure. Finally, 1 CI RJPs were resolved in deionized water toinvestigate their functions.