J. Sci. Agri. Technol. (2022) Vol. 3 (2): 12 – 18
DOI: https://doi.org/10.14456/jsat.2022.7
Abstract
This current study investigated the aqueous extracts of Amaranthus viridis and Carissa carandasas reducing agents in indigo dyeing fabric with Strobilanthes cusia compared to the traditional plant Tamarindus indica. Freshly prepared extracts were subjected to preliminary phytochemical screening. It was found that C. carandas extract revealed the presence of pH 2.6 and the content of phenolic, flavonoid, and tannin of 0.93 GAE/mg DW, 0.92 QE/mg DW, and 7.55 ECGC/mg DW, respectively. This might be responsible for the reduced properties. The reducing power measured by DPPH assay and ferric ion reducing antioxidant power (FRAP) confirmed that 10% (w/v) of C. carandas extract possessed the excellent property closely to T. indica extract, whereas 15%-20% (w/v) C. carandas extract with 10% (w/v) bio-mordant was found to contain the closely colorimetric characteristics (CIE L*a*b*) to T. indica extract. It can be concluded that C. carandas extract has high potential as a reducing agent in fabric dyeing with S. cusia and might be a promising low-cost reducing agent for developing green dyeing for clothing in the near future.
Keywords: Carissa carandas, cotton fabrics, dyeing, reducing agent, indigo
Received: July 29, 2022. Revised: September 21, 2022; September 28, 2022. Accepted: October 3, 2022.
