Characteristics Of Natural Dye Extract Of Bougainvillea (Bougainvillea glabra) With Time And Power Variations Using Microwave Assisted Extraction (MAE) Method

Authors

  • Ni Putu Suwariani Universitas Udayana
  • Ni Made Wartini Universitas Udayana
  • Bunga Aprilianti Universitas Udayana

DOI:

https://doi.org/10.24843/JRMA.2025.v13.i03.p15

Keywords:

Bougainvillea glabra, MAE, betasianine, time, power.

Abstract

Bougainvillea (Bougainvillea glabra) is a natural source of betacyine pigment which has the potential to be a food coloring as well as an antioxidant. This study aims to examine the effect of extraction time and power using the Microwave Assisted Extraction (MAE) method on the characteristics of bougainvillea flower extract, including yield, total betayanin, color intensity ( a*, b*), and antioxidant capacity. The study used a factorial Group Random Design (RAK) with two factors: time (3, 5, 7 minutes) and power (100, 300 watts). The results showed that the combination of time and power had a very pronounced effect (P<0.01) on all parameters. The best treatment was obtained at 5 minutes and a power of 100 watts, with a yield of 56.26±0,98%, total betasianine 20.56±0,24 mg/100g, color intensity a* 30.31±0,11; b* 16.06 ± 0,17, and antioxidant capacity of 495.27± 2,69 mg GAE/100g. The MAE method has been proven to be effective in producing high-quality bougainvillea flower extract as a natural dye and antioxidant.

 

Downloads

Published

2025-09-30

Issue

Section

Articles