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Title: Curcuma longa L., Curcuma xanthorrhiza, and Curcuma mangga Val. Curcuminoid Yield Optimization by Ultrasonic-Assisted Extraction (UAE) Method Using Natural Deep Eutectic Solvent (NADES).
Abstract: The purpose of this study is to improve C. longa extraction using natural deep eutectic solvents (NADES) and ultrasonic assistance. The effects of different process variables, including solvent water content, solid loading, temperature, and extraction time, were examined using choline chloride-lactic acid (CCLA-H2O = 1:1, b/v). The best yield of 79.635 mg/g of C. longa was obtained after 1 hour of extraction in 20% water content NADES with a 4% solid loading. The optimized ultrasonic-assisted extraction (UAE) method’s kinetics were described using Peleg’s model, and the results were found to be consistent with the data from the experiments. Following the extraction of C. longa, the optimal conditions were used to extract C. xanthorriza and C. mangga, yielding 2.056 and 31.322 mg/g, respectively. Additionally, the curcuminoids extract from C. longa, C. xanthorriza, and C. mangga were separated using n-hexane as an anti-solvent, yielding curcuminoid recovery of 39%, 0.74%, and 27%, respectively. Curcuminoids were also crystallized using the n-hexane and isopropanol method to solidify them. However, when combined with isopropanol, the CCLA and curcuminoids solution formed a homogeneous mixture. Because NADES was present in the extract solution, the curcuminoids could not solidify.
Keywords: curcumin; turmeric; extraction; ultrasonic-assisted extraction; natural deep eutectic solvents
Paper Quality: SCOPUS / Web of Science Level Research Paper
Subject: Chemistry
Writer Experience: 20+ Years
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