Effect of the Melicoccus bijugatus leaf and fruit extracts and acidic solvents on the antimicrobial properties of chitosan-starch films was written by Juarez-Mendez, M. E.;Lozano-Navarro, J. I.;Velasco-Santos, C.;Perez-Sanchez, J. F.;Zapien-Castillo, S.;Del Angel-Moxica, I. E.;Melo-Banda, J. A.;Tijerina-Ramos, B. I.;Diaz-Zavala, N. P.. And the article was included in Journal of Applied Microbiology in 2021.Application In Synthesis of Ethyl 3-ethoxypropanoate The following contents are mentioned in the article:
Aim : Analyzing the antimicrobial activity-against food-borne micro-organisms-of modified chitosan-starch films using formic and acetic acid as chitosan solvents and Melicoccus bijugatus leaves and fruit extracts Methods and Results : The films’ antimicrobial activity against mesophilic aerobic bacteria, total coliform and fungi were also analyzed, in accordance with the Mexican Official Norms (NOM-092-SSA1-1994, NOM-111-SSA1-1994 and NOM-113-SSA1-1994). The pH values of the films and extracts were measured, and the volatile compounds of the extracts and two films were determined by Gas Chromatog.-Mass Spectrometry (GC-MS) considering the relationship among the type of compounds, extracts concentration, films’ pH and the antimicrobial activity against bacteria and fungi. The best results are obtained by films with formic acid and 10% (volume/volume) of leaf and fruit extracts, in comparison with untreated chitosan-starch films. Conclusions : The extracts’ compounds improved the films’ antimicrobial capacity and inhibited the growth of micro-organisms with no previous sterilization required. It is correlated to the pH of the media, the combination of solvent/extract used and its concentration Significance and Impact of the study : This is one of the few researches where the antimicrobial activity of M. bijugatus extracts is studied. It was found that the presence of these extracts is capable of improving the antimicrobial activities of chitosan-starch films. The performance of the modified films suggests their potential application as novel food packaging materials and encourages further research. This study involved multiple reactions and reactants, such as Ethyl 3-ethoxypropanoate (cas: 763-69-9Application In Synthesis of Ethyl 3-ethoxypropanoate).
Ethyl 3-ethoxypropanoate (cas: 763-69-9) belongs to esters. Carboxylic acid esters of low molecular weight are colourless, volatile liquids with pleasant odours, slightly soluble in water. 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 In Synthesis of Ethyl 3-ethoxypropanoate
Referemce:
Ester – Wikipedia,
Ester – an overview | ScienceDirect Topics