Year: 2025
Type: article
Abstract: Amomyrtus luma (A. luma), a native Chilean tree species, produces fruits containing 1–3 non-edible seeds, which are typically discarded as waste during processing. This study evaluated the fatty acid composition and bioactive properties of A. luma seed oil obtained through maceration, ultrasound extraction, and Soxhlet extraction, using hexane as the extraction solvent. Fatty acid methyl esters (FAMEs) were quantified using gas chromatography-flame ionization detection (GC–FID), revealing that linoleic acid was the most abundant (79.79–80.09%), followed by oleic acid (8.89–9.18%) and palmitic acid (7.29–7.40%), with no significant differences (p < 0.05) among extraction methods. However, extraction conditions significantly influenced the concentration of bioactive compounds, including total phenolics, flavonoids, tannins, lycopene, carotenoids, and antioxidant capacity, as determined through DPPH and FRAP assays. A strong correlation was observed between polyphenol content and antioxidant activity, particularly in maceration and ultrasound extraction, whereas Soxhlet extraction favored tocopherols and carotenoids due to the thermal degradation of polyphenols. Soxhlet extraction yielded the highest oil recovery, while ultrasound extraction preserved the highest levels of bioactive compounds and antioxidant capacity. No antimicrobial activity was detected against Staphylococcus aureus and Escherichia coli. These findings underscore the key role of extraction methods in determining the nutritional and functional quality of A. luma seed oil. Given its high unsaturated fatty acid content and bioactive potential, A. luma seed oil represents a promising ingredient for cosmetic and pharmaceutical applications, while contributing to waste valorization and sustainable resource utilization.
Source: Compounds
Authors: Claudia Giovagnoli-Vicuña, Rafael Viteri, Javiera Aparicio, Issis Quispe-Fuentes, Ady Giordano
Language: English
Subfield: Organic Chemistry
Field: Chemistry
Domain: Physical Sciences
SDG: Zero hunger
Open Access status: gold
Estimated APC paid: $1,207
Awards: IMPACT OF HIGH-PRESSURE IMPREGNATION OF ULMO HONEY ENRICHED WITH PROPOLIS BEFORE DRYING PROCESS OF CAUCHAO BERRY (AMOMYRTUS LUMA) TO DEVELOP A BIOACTIVE AND FUNCTIONAL SNACK TO ADD VALUE TO THIS NATIVE CHILEAN FRUIT, A GREEN APPROACH TO ISOLATE ANTIFUNGAL AND ANTIMICROBIAL COMPOUNDS FROM CHILEAN NATIVE PLANTS THROUGH SEQUENTIAL NADES-BASED EXTRACTION, G6165824573
OpenAlex ID: W4413129864