The effect of Variety (3 levels: Bonga 51/71, HT3/2002, and Dame) on % Curcuminoids, % Methanol extract, % EO yield and TPC, and the effect of Treatment (4 levels: Bonga 51/71, HT3/2002, Dame, and Control) on % DPPH scavenging capacity and IC50 were determined using one-way analysis of variance (ANOVA). The effects of Variety (3 levels: Bonga 51/71, HT3/2002, and Dame) and type of Extract (2 levels: essential oil and methanolic extract) on inhibition zone against S. aureus were determined using two-way ANOVA. Normal distribution and constant variance assumptions on the error terms were verified by examining the residuals as described in Montgomery (2020). Since the main effects of Variety and Treatment were significant on all response variables, multiple means comparison was completed using Duncan's method (Montgomery, 2020) and letter groupings were generated at the 5% level of significance. The analysis was completed using SAS version 9.4 software (SAS, 2014). Excel (in Microsoft Office, Microsoft, WA, USA) was used to produce the figures.

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