A Mini Review on Gardenia jasminoides Essential Oil and Fruit Oil: Composition, Quality Indices, and Cosmetic Industrial Value

Abstract

Gardenia jasminoides Ellis has long been valued for its fragrant flowers and bioactive fruit, yet its essential oil and fruit-derived oil remain under-integrated in cosmetic science. This mini review summarizes current evidence on the extraction technologies, chemical composition, quality indices, and cosmetic-relevant bioactivities of gardenia essential oil and fruit oil. Flower essential oils obtained through hydrodistillation, solvent extraction, and enfleurage exhibit complex volatile profiles dominated by alcohols and terpenes, including linalool, α-farnesene, methyleugenol, and jasminelactone, which contribute to the characteristic sweet-green floral aroma. Advanced analytical techniques such as GC–MS and HS-GC-MS have identified over 100 volatile compounds, with odor-active components confirmed through relative odour activity value analysis and sensory evaluation. In contrast, fruit oils extracted via supercritical CO₂ and ultrasound-assisted extraction are characterized by a favorable unsaturated fatty acid profile and the presence of lipophilic bioactive constituents, including crocetin derivatives. Quality assessment relies on chromatographic fingerprinting, extraction yield optimization, fatty acid composition, and antioxidant capacity assays. Biological studies demonstrate that gardenia essential oil and fruit oil possess anti-inflammatory activity through inhibition of nitric oxide release and modulation of TNF-α and PGE₂ pathways, antioxidant capacity evidenced by DPPH and total antioxidant assays, and skin barrier repair effects associated with upregulation of tight junction protein ZO-1 without cytotoxicity. Additionally, fragrance preference studies support its sensory acceptability for cosmetic formulations. Collectively, the integration of compositional profiling, bioactivity evaluation, and process optimization highlights Gardenia jasminoides oils as multifunctional botanical ingredients with significant potential in fragrance, soothing, antioxidant, and skin-repair cosmetic applications. Further standardization and genotype-based selection strategies are warranted to ensure consistent quality and efficacy.