Focus on Olea europaea L. pruning by-products: extraction techniques, biological activity, and phytochemical profile was written by Faraone, Immacolata;Russo, Daniela;Bruno, Maria Roberta;Todaro, Luigi;D′Auria, Maurizio;Milella, Luigi. And the article was included in Biofuels, Bioproducts & Biorefining in 2021.COA of Formula: C9H12O3 The following contents are mentioned in the article:
The Olea europaea L. tree has played a central role in Mediterranean culture since ancient times. Several studies have highlighted the health-promoting properties both of its primary products (olives) and its byproducts (leaves, pomace, husk, stone, mill wastes, and wood). In this study, pruning residues from 25-yr-old olive trees located in a Mediterranean region (Basilicata, Italy) were analyzed. The antioxidant activity of hydro-alc. extracts from wood samples were analyzed through three complementary in vitro assays. The mol. composition of the extracts was thoroughly evaluated using a gas chromatog. apparatus coupled with a mass spectrometer (GC-MS). Our study demonstrated that all but three extracts had remarkable antioxidant activity, which was likely due to the meaningful presence of phenolic compounds, mostly derived from lignin. Moreover, the results showed that bark extracts obtained with ultrasound-assisted extraction (UAE) had the highest antioxidant activity. In this extract, several known compounds with demonstrated antioxidant activity were found, including hexylresorcinol, 1-methyl-N-vanillyl-2-phenethamine, and allopurinol. This research suggests that woody olive byproducts are a potential natural resource of antioxidants. These compounds could be useful for functional foods and in industry, and could help to solve the problem of pruning residues, increasing their potential economic value. 2021 The Authors. Biofuels, Bioproducts and Biorefining published by Society of Industrial Chem. and John Wiley & Sons Ltd. This study involved multiple reactions and reactants, such as 4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1COA of Formula: C9H12O3).
4-Hydroxy-3-methoxyphenethanol (cas: 2380-78-1) 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 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. COA of Formula: C9H12O3
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem