Influence of Heating on Thermal Stability of Essential Oils During Storage

Dedebaş, Tuğba; Ekici, Lütfiye; Sağdıç, Osman

doi:10.1080/0972060x.2022.2089058

Cited by 4 publications

(2 citation statements)

References 45 publications

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“…Plant essential oils are generally volatile, have unstable physical and chemical properties, and exhibit thermal degradation, which makes them susceptible to changes during processing and storage. 45 For example, Ngamekaue et al detected a decrease in linalool content and significant changes in citronellol, ester, farnesol, and alkane levels of plant essential oil at high temperatures. 46,47 The present study found that the storage temperature of 40 °C significantly affected the antioxidant activity of CO (Tables S4 and S5), indicating that high temperature is inappropriate for CO storage.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

Sustainable Use of Chrysanthemum indicum var. aromaticum as Value-Added Green Materials in Microemulsion Hydrogels

Feng

et al. 2023

ACS Sustainable Chem. Eng.

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The essential oil extracted from the flowers of Chrysanthemum indicum var. aromaticum (CIA) has excellent biological properties; however, the stems and leaves of CIA often get wasted. Maximizing the use of these wastes will help solve the sustainability issues of CIA resources. The present study analyzed the chemical compositions of CIA flower essential oil (CO) and stem and leaf extract (CE) by gas chromatography–mass spectrometry (GC–MS) and ultra-performance liquid chromatography–mass spectrometry (UPLC-MS). Then, the phytochemical properties, stability, antioxidant capacity, and cell (human L929) toxicity of CO and CE were further evaluated. Finally, oil-in-water microemulsion (ME) and hyaluronic acid hydrogel systems composed of CO and CE were developed to deliver bioactive ingredients effectively. The analysis identified 64 and 31 compounds in CO and CE, respectively, and indicated them as readily available sources of natural antioxidants, such as flavonoids and phenols. In addition, the formulation of the ME system (CIA-ME) improved CO stability and increased CE loading; these optimal formulations (ME, CIA-ME, CIA-ME gel) exhibited good stability, rheological properties, and sustained release properties without causing cell toxicity and skin irritation. The CIA-ME significantly inhibited intracellular tyrosinase activity and decreased intracellular melanin production in a dose-dependent manner. It also demonstrated skin photoprotection and inhibited tyrosinase, collagenase, and elastase activities. Overall, CIA as a plant raw material can serve as a promising topical cosmetic or medicine prototype. Applying CO and CE in combination provides a basis for the sustainable utilization of CIA resources.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Sustainable Use of Chrysanthemum indicum var. aromaticum as Value-Added Green Materials in Microemulsion Hydrogels

Feng

et al. 2023

ACS Sustainable Chem. Eng.

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show abstract

“…Moreover, ATaAL-EO may potentially induce toxicity, allergic reactions, and have limitations in usage. Additionally, it is important to consider potential interactions of ATaAL-EO with other pharmaceuticals [ 7 ].…”

Section: Introductionmentioning

confidence: 99%