Curcumin extracts from Curcuma Longa – Improvement of concentration, purity, and stability in food-approved and water-soluble surfactant-free microemulsions was written by Degot, Pierre;Huber, Verena;Touraud, Didier;Kunz, Werner. And the article was included in Food Chemistry in 2021.Application of 33171-05-0 The following contents are mentioned in the article:
Curcumin was extracted from Curcuma Longa employing a green, bio-based, and food-agreed surfactant-free microemulsion (SFME) consisting of water, ethanol, and triacetin. Concerning the high solubility of curcumin in the examined ternary mixtures, it was attempted to produce highly concentrated tinctures of up to a total of ∼130 mg/mL curcuminoids in the solvent by repeatedly extracting fresh rhizomes in the same extraction mixture The amount of water had a significant influence on the number of cycles that could be performed as well as on the extraction of the different curcuminoids. In addition, the purity of single extracts was enhanced to 94% by investigating several purification steps, e.g. vacuum distillation and lyophilization. Through purification before extraction, the water insoluble curcumin extract could be solubilized indefinitely in an aqueous environment. Addnl. stability tests showed that solutions of curcumin can be stable up to five months when concealed from natural light. This study involved multiple reactions and reactants, such as Bisdemethoxycurcumin (cas: 33171-05-0Application of 33171-05-0).
Bisdemethoxycurcumin (cas: 33171-05-0) belongs to ethers. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. Esters are more polar than ethers but less polar than alcohols. They participate in hydrogen bonds as hydrogen-bond acceptors, but cannot act as hydrogen-bond donors, unlike their parent alcohols. This ability to participate in hydrogen bonding confers some water-solubility.Application of 33171-05-0
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem