Characteristics of Starch Isolated from Tofu Residue as A Tablet Excipient using Varying Sodium Hydroxide Concentrations
DOI:
https://doi.org/10.37287/ijghr.v8i5.2071Keywords:
sodium hydroxide, tablet excipient, tofu dregs wasteAbstract
The utilization of tofu dregs as a solid waste source containing starch has not been optimized, despite its potential application as a pharmaceutical excipient. This study aimed to isolate starch from tofu dregs and characterize it according to pharmaceutical grade standards for use as a tablet excipient. Starch isolation was carried out using NaOH solutions at concentrations of 0.1%, 0.2%, and 0.3%. Parameter pharmaceutical grade observed included organoleptic properties, iodine test, pH, moisture content, and ash content, which were evaluated based on the experimental research results and analyzed descriptively. The results showed that the moisture content of the isolated starches was 11.09%, 11.55%, and 11.23%, respectively. The pharmaceutical grade evaluation met the requirements for organoleptic taste, as the starch powder was tasteless, and the iodine test produced a blue coloration. The pH values obtained were 5.94, 5.98, and 6.33. However, the organoleptic parameters related to color and odor, described as brownish-white powder with a characteristic odor, as well as the ash contents of 0.9%, 1.9%, and 1.9%, did not meet the required standards. In conclusion, starch can be successfully isolated from tofu dregs, with the 0.1% NaOH treatment providing the best characteristics and showing potential as an excipient for pharmaceutical tablet formulations.
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