Distinct metabolomes and quality characteristics of vacuum-assisted osmosonic-pretreated Curcuma longa L. rhizomes subjected to different drying methods was written by Alolga, Raphael N.;Osae, Richard;Ibrahim, Traore S.;Onoja, Vitus;Apaliya, Maurice T.;Kwaw, Emmanuel;Huang, Feng-Qing. And the article was included in Industrial Crops and Products in 2022.Reference of 33171-05-0 The following contents are mentioned in the article:
This study sought to investigate the impact of four drying methods, thus, sun (S) drying, freeze (F) drying, relative humidity convective (RHC) drying and IR (IR) drying, on the metabolomes and quality characteristics of vacuum-assisted osmosonic-pretreated turmeric (Curcuma longa L.) slices. The quality characteristics examined included contents of marker compounds, antioxidant activities, total phenolic content (TPC), total flavonoid content (TFC), chromatic properties, sensory characteristics, rehydration ratios (RR), and moisture diffusivities. Using LC-Q/TOF-MS and chemometric analyses, the metabolomes of variously dried turmeric samples were examined In this regard, we found distinct metabolome differences between the samples. These differences translated into differential levels of three marker compounds, thus, curcumin, demethoxycurcumin and bisdemethoxycurcumin as captured by HPLC-DAD anal. Overall, F drying gave the best results for all parameters assessed except for effective moisture diffusivity. Specifically, the F dried samples possessed the highest contents of the marker compounds, curcumin (3.99 ± 0.01μg/mg), BDMC (0.275 ± 0.0006μg/mg), DMC (0.170 ± 0.0007μg/mg). The F dried samples also possessed the highest antioxidant activities, TPC, and TFC, chromatic and sensory characteristics. There were also marked differences in the rehydration ratios (RR), and the moisture diffusivities of the various dried samples. The RHC dried samples ranked second to the F dried samples for all quality parameters examined In summary, for all the quality characteristics examined, the following order in terms of suitability and potential industrial large-scale applicability of the various drying methods was deduced: F drying > RHC drying > IR drying > S drying. This study involved multiple reactions and reactants, such as Bisdemethoxycurcumin (cas: 33171-05-0Reference 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. Polyesters are important plastics, with monomers linked by ester moieties. 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.Reference of 33171-05-0
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem