Characteristics of two cedarwood essential oil emulsions and their antioxidant and antibacterial activities

Huang, Kai; Liu, Runan; Zhang, Ying; Guan, Xiao

doi:10.1016/j.foodchem.2020.128970

Cited by 69 publications

(40 citation statements)

References 43 publications

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“…43 The smaller the measured TSI value is, the higher will be the stability of the dispersed system. 44 In this study, the optimal surfactant mixing ratio was determined by comparing the TSI values of nanoemulsions prepared at different surfactant mixing ratios. Figure 1C shows the TSI value variations of the prochloraz nanoemulsions prepared at different surfactant mixing ratios.…”

Section: ■ Results and Discussionmentioning

confidence: 99%

“…Turbiscan Lab Tower can be used to determine droplet size and dispersed phase concentration changes, and the TSI value can be used to predict the stability of the dispersed system . The smaller the measured TSI value is, the higher will be the stability of the dispersed system . In this study, the optimal surfactant mixing ratio was determined by comparing the TSI values of nanoemulsions prepared at different surfactant mixing ratios.…”

Section: Results and Discussionmentioning

confidence: 99%

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Fabrication and Characterization of Prochloraz Nanoemulsion against Penicillium citrinum for the Postharvest Storage of Navel Oranges

et al. 2021

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Nanoemulsions have become extremely popular water-insoluble pesticide delivery systems in recent years. In this study, prochloraz nanoemulsions were obtained by selecting the mixing ratio of surfactants (6:1, 3:1, 2:1, 1:1, 1:2, 1:3, and 1:6), surfactant concentration, and shearing time. The optimal formula was 10 wt % prochloraz, 6 wt % surfactant (2 wt % CO-100 + 4 wt % CO-360) dissolved in 6 wt % hydrocarbon solvent (S-100A), and deionized water replenished to 100 wt %. This formula meets the quality index standards of the Food and Agriculture Organization. Compared with oil-in-water emulsion (EW), the prochloraz nanoemulsion exhibited higher antifungal activity against Penicillium citrinum in vitro (lower LC50 of 1.17 mg L–1) and in vivo (fewer lesions). In addition, the L02 cells treated with the nanoemulsion had a higher survival rate and lower apoptosis rate at the same concentration. Results showed that the toxicity of the prochloraz nanoemulsion on L02 cells was lower than that of EW. The findings provide an important method for developing an efficient, safe, and environment-friendly nanoemulsion for postharvest fruit storage.

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Section: ■ Results and Discussionmentioning

confidence: 99%

Section: Results and Discussionmentioning

confidence: 99%

Fabrication and Characterization of Prochloraz Nanoemulsion against Penicillium citrinum for the Postharvest Storage of Navel Oranges

et al. 2021

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“…The development of green, environmentally friendly, safe, and efficient natural fungicides to replace chemical fungicides is urgently needed to control plant disease. Essential oils are one of the candidates to be used as fungicides [1][2][3][4][5]. Citral (Eo), the active ingredient in many plants' essential oils, exhibits appreciable and extensive in vitro antimicrobial activity against bacteria and fungi [6][7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Controlled-Release of Plant Volatiles: New Composite Materials of Porous Carbon-Citral and Their Fungicidal Activity against Exobasidium vexans

Liu¹,

Chen²,

Liu³

et al. 2023

Journal of Renewable Materials

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Citral (Eo) exhibits excellent fungicidal activities. However, it is difficult to maintain long-term fungicidal activity due to its strong volatility. Herein, a controlled-release strategy by using biomass-derived porous carbon (BC) was developed to overcome the drawback of Eo. New composite materials were prepared by loading Eo on tea stem porous carbon (BC@Eo), and their controlled-release fungicidal activity against Exobasidium vexans was assessed. BC with a large specific surface area of 1001.6 m 2 /g and mesoporous structure was fabricated through carbonization temperature of 700°C. The BC@Eo materials were characterized using Fourier-transform infrared spectroscopy and X-ray powder diffraction. The results suggested that chemical and physical interactions occurred in BC@Eo. The Eo release profile suggested a biphasic pattern with an initial fast release on days 1-14 and a subsequent controlled phase on days 14-30. The in vitro cumulative release percentage of Eo from BC@Eo was 51% during one month, and this result was significantly lower than that from free Eo (cumulative release percentage of Eo of 82% in one week). The antifungal activities of Eo and BC@Eo against E. vexans were determined using the inhibition zone method. The results indicated that Eo and BC@Eo formed large inhibition zones of 19.66 ± 0.79 and 21.92 ± 0.77 mm, respectively. The influence on the hyphal structure of E. vexans was observed by scanning electron microscopy on day 30. The hyphal structure of E. vexans treated with BC@Eo was more shrunken than that treated with Eo at 30 days, suggesting that BC@Eo prolongs the fungicidal activity against E. vexans. This study demonstrated that the encapsulation of Eo in BC for developing the BC@Eo materials could be a promising strategy to inhibit volatility and maintain the fungicidal activity of Eo and provide a potential alternative for the reuse of abundant tea biomass waste resources.

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“…They can be added to chitosan solutions by mixing directly or after emulsification. Considering the hydrophobicity and stability of essential oils, emulsions are promisingly used to encapsulate and protect them (Huang et al, 2021; Li et al, 2018; Shao et al, 2018; Yazgan et al, 2019; Zhang et al, 2017). Those studies showed that the emulsified essential oils had better antibacterial activity than bulk ones.…”

Section: Introductionmentioning

confidence: 99%

Performance of eugenol emulsion/chitosan edible coating and application in fresh meat preservation

Zhao

Chen

et al. 2022

Food Processing Preservation

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Meat and meat products have become an important source of dietary nutrients because of their rich fat and protein (Umaraw et al., 2020). The spoilage of meat is apt to occur due to microbial growth and compositional change during storage (Dominguez et al., 2018). Hence, appropriate protection technology must be adopted to maintain the safety and nutritional values of meat (Fang et al., 2017). Many packaging technologies have been innovated to prolong the shelf-life of fresh meat and meat products

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Characteristics of two cedarwood essential oil emulsions and their antioxidant and antibacterial activities

Cited by 69 publications

References 43 publications

Fabrication and Characterization of Prochloraz Nanoemulsion against Penicillium citrinum for the Postharvest Storage of Navel Oranges

Fabrication and Characterization of Prochloraz Nanoemulsion against Penicillium citrinum for the Postharvest Storage of Navel Oranges

Controlled-Release of Plant Volatiles: New Composite Materials of Porous Carbon-Citral and Their Fungicidal Activity against Exobasidium vexans

Performance of eugenol emulsion/chitosan edible coating and application in fresh meat preservation

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