Chemical composition, antioxidative and antimicrobial activities of turmeric spent oleoresin was written by Joshi, Priyanka;Joshi, Sushil;Semwal, Deepak Kumar;Bisht, Akansha;Sharma, Swapnil;Dwivedi, Jaya. And the article was included in Industrial Crops and Products in 2021.Application of 33171-05-0 The following contents are mentioned in the article:
Disposal of the turmeric waste commonly known as turmeric spent oleoresin (TSO) left after separation of curcuminoids has been considered as serious concern and has attracted scientific community at large for its sustainable utilization. The fractionation of TSO was achieved using column chromatog. and the fractions thus obtained were characterized using HPLC and LCMS-qToF techniques. The isolated fractions and turmeric were examined for their antioxidant activity employing standard procedures such as DPPH scavenging assay, ABTS scavenging assay, FRAP assay and Phosphomolybdate assays. Antimicrobial potential of TSO and isolates was performed against different microbial strains using the broth dilution method. Chem. characterization of TSO revealed the presence of ferulic acid, myristicin, furanodience, cyclocurcumin, 6-methoxy-2-[2-(3methoxyphenyl) ethyl] chromone, dihydrocurcumin, bisabolocurcumin ether, terpecurcumin Q, curcumin, cyclobisdesmethoxycurcumin, and bisdemethoxycurcumin. The highest antimicrobial activity was recorded for Fraction 1 (F1) (Inhibitory zone diameter (IZD) = 25.33 ± 0.33 mm), Fraction 6 (F6) (IZD = 23.67 ± 0.33 mm), Fraction 7 (F7) (IZD = 22.67 ± 0.33 mm), Fraction 9 (F9) (IZD = 24.00 ± 00 mm) and Fraction 11 (F11) (IZD = 22.33 ± 0.67 mm) against Escherichia coli (E. coli), Staphylococcus aureus (S. aureus), Pseudomonas aeruginosa (P. aeruginosa), Candida albicans (C. albicans), and Salmonella abony (S. abony) resp. 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. Esters perform as high-grade solvents for a broad array of plastics, plasticizers, resins, and lacquers, and are one of the largest classes of synthetic lubricants on the commercial market. Esters contain a carbonyl center, which gives rise to 120° C–C–O and O–C–O angles. Unlike amides, esters are structurally flexible functional groups because rotation about the C–O–C bonds has a low barrier. Their flexibility and low polarity is manifested in their physical properties; they tend to be less rigid (lower melting point) and more volatile (lower boiling point) than the corresponding amides. Application of 33171-05-0
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem