Evaluation of plant extracts as an efficient source of additives for active food packaging was written by Vieira, Dalila M.;Pereira, Carla;Calhelha, Ricardo C.;Barros, Lillian;Petrovic, Jovana;Sokovic, Marina;Barreiro, Maria Filomena;Ferreira, Isabel C. F. R.;Castro, Maria Cidalia R.;Rodrigues, Pedro V.;Machado, Ana Vera. And the article was included in Food Frontiers in 2022.Formula: C19H16O4 The following contents are mentioned in the article:
Natural extracts have been used in several traditional medicine applications and culinary purposes. Their biol. properties (antioxidant and antimicrobial) are due to the presence of several active aromatic compounds Herein, different natural extracts were evaluated, namely structural and thermal characterization and biol. activity, in its natural form and incorporated into a polymeric matrix, to assess their effective potential as additives for active food packaging. While rosemary presented the highest thermal stability with a degradation starting at 327°C, lemon balm extract was the less stable (180°C). Regarding the thiobarbituric acid assay, all extracts presented antioxidant activity, in oxidative hemolysis inhibition; anise, cinnamon, and clove extract did not present any action. Overall, the results demonstrated that leaves (rosemary and green tea) and the rhizome (curcumin) are the plant parts with the best performance. Therefore, extracts from aromatic plants are promising natural additives that can be incorporated into polymeric matrixes to produce active food packaging film, increasing products shelf-life. This study involved multiple reactions and reactants, such as Bisdemethoxycurcumin (cas: 33171-05-0Formula: C19H16O4).
Bisdemethoxycurcumin (cas: 33171-05-0) belongs to ethers. Volatile esters with characteristic odours are used in synthetic flavours, perfumes, and cosmetics. Certain volatile esters are used as solvents for lacquers, paints, and varnishes. 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.Formula: C19H16O4
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem