PJB-2020-214
OPTIMIZATION OF LIGHT INTENSITY AND POPULATION OF CURCUMA JAVANAIS (Curcuma xanthorriza R.) ON CURCUMIN LEVEL AND ANTIOXIDANT UNDER THE COFFEE PLANT
Ellis Nihayati
Abstract
Curcuma Javanais (Curcuma xanthorriza R.) as one of secondary metabolism sources and antioxidant, which mostly found in Asia region, is able to protect our body from any disorder caused by reactive oxygen species, inhibit degenerative disease and lipid peroxidation in foods. So that, secondary metabolism compounds and antioxidant should be increased by regulating the plant spacing of curcuma javanais under coffee stand. Objective of the research was to optimize quality of the curcuma javanais, curcumin level and antioxidant activity, by utilizing the environment under annual plant stands via optimization of the intercepted radiation intensity. Results of the research showed that the curcuma javanais planted under Excelsa and Robusta stands, with shorter spacing, produce lighter weight of rhizomes per plant, but higher level of curcuminoid and antioxidant activity, in comparison with curcuma javanais planted in wider spacing.
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