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How preparation of Extraction of curcuma? 

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The extraction of curcuma can be done using various methods such as reflux extraction, supercritical carbon dioxide (SC-CO2) extraction, and supercritical fluid extraction (SFE) combined with molecular distillation (MD). In reflux extraction, turmeric can be extracted in powder or fresh form using distilled water as the solvent . SC-CO2 extraction involves using supercritical carbon dioxide to extract lipophilic compounds from curcuma rhizomes, resulting in extracts containing curcuminoids and essential oils . SC-CO2 can also be used to prepare nanoparticles of curcuma rhizome extract, where the extract changes from dissolved to precipitated mode during the expansion process . In the case of SFE combined with MD, a high-quality essential oil with typical components of turmeric can be extracted and purified, allowing for the control of the quality of turmeric products . These methods offer different approaches to extract and purify curcuma, providing options for different applications and desired outcomes.

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The paper describes the preparation of standardized typical volatile components fraction (STVCF) from turmeric using supercritical fluid extraction (SFE) and molecular distillation (MD).
The paper describes the preparation of a ternary system using a natural deep eutectic solvent (NADES) along with ethanol and triacetin to solubilize and extract curcumin from Curcuma Longa.
The paper describes the preparation of Curcuma longa L. extract nanoparticles using supercritical carbon dioxide (SC-CO2) for sample pre-treatment, including lipophilic compounds removal and extraction, as well as particle production.
The paper discusses the extraction of curcumin from turmeric using the reflux extraction method. The study used three variations of turmeric samples: powdered, grated, and pieces. The extraction process was carried out using distilled water as the solvent.
The paper does not provide information on the preparation of the extraction of curcuma.

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