Significant inhibition of garlic essential oil on benzo[a]pyrene formation in charcoal-grilled pork sausages relates to sulfide compounds

The active components in garlic essential oil are easily degradable, which limits its application in the food industry. Vegetable oils (VOs) were used to improve the stability of garlic essential oil (GEO) emulsion. The volatile compounds of GEO and its mixtures with vegetable oils (VOs), including corn oil (CO), soybean oil (SO), and olive oil (OO) indicated that GEO-VO mixtures had a higher percentage of Diallyl disulfide and Diallyl trisulfide than pure GEO. Adding an appropriate amount of VOs promoted the GEO emulsion (whey protein concentrate and inulin as the wall materials) stability in order of CO > SO > OO. Evaluation of the encapsulation efficiency, controlled release, and antimicrobial activity of GEO-VO microcapsules showed that the GEO was successfully entrapped and slowly released with active antibacterial activities on both E. coli and S. aureus. Collectively, these results implied that VOs, especially for 20% CO, improved the stability of GEO emulsions and the encapsulation efficiency of GEO microcapsules. The mechanism might be related to (1) the regulating effect of density difference between oil and water phases on prevention to gravitational separation, (2) the promotion to the compatibility of GEO and VOs to inhibit the phase separation caused by Ostwald ripening.

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Characterization of rheological properties of complex coacervates composed by whey protein isolate, chitosan and garlic essential oil

Journal of Food Measurement & Characterization ◽

10.1007/s11694-021-01162-8 ◽

2021 ◽

Author(s):

Loleny Tavares ◽

Caciano Pelayo Zapata Noreña

Keyword(s):

Essential Oil ◽

Rheological Properties ◽

Whey Protein ◽

Whey Protein Isolate ◽

Protein Isolate ◽

Garlic Essential Oil

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Application of Taguchi method to optimize garlic essential oil nanoemulsions

Journal of Molecular Liquids ◽

10.1016/j.molliq.2017.09.007 ◽

2017 ◽

Vol 244 ◽

pp. 279-284 ◽

Cited By ~ 10

Author(s):

Lebogang Katata-Seru ◽

Thabang C. Lebepe ◽

Oluwole Samuel Aremu ◽

Indra Bahadur

Keyword(s):

Essential Oil ◽

Taguchi Method ◽

Garlic Essential Oil

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Fumigant toxicity of some essential oils against Red Flour Beetles, Tribolium castaneum (Herbst) and its safety to mammals

Brazilian Journal of Biology ◽

10.1590/1519-6984.219529 ◽

2020 ◽

Vol 80 (4) ◽

pp. 769-776

Author(s):

T. M. Sileem ◽

A. L. Mehany ◽

R. S. Hassan

Keyword(s):

Essential Oil ◽

Essential Oils ◽

Tribolium Castaneum ◽

Larval Stage ◽

Adult Stage ◽

Lethal Concentration ◽

Median Lethal Concentration ◽

Histological Changes ◽

Garlic Oil ◽

Garlic Essential Oil

Abstract Fumigant activities for three essential oils; Garlic oil (Allium sativum L); Chili pepper (Capsicum annuum L.) and Nigella (Nigella sativa L.) were assessed at different concentrations against the adult and 20-days old larval stages of Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae) in the laboratory. The accumulative mortality was observed at different exposure periods (3, 5 and 7 days). The residual effect of garlic oil that was the effective oil, on the treated wheat grains was evaluated with respect to histological changes in the liver, kidney, and stomach of rat fed on this treated wheat. The results showed that the mortality rates of treated stages increased with increasing the time of fumigation treatment. Moreover the highest essential oils toxicity at the Median lethal concentration (LC50) values for exposure periods (3, 5 and 7 days) to fumigation were (126, 53, and 47 mg/L air) for adult stage and were (79, 62, and 41 mg/L air) for larval stage, respectively in the case of Garlic oil treatment. While, the lowest essential oils effective was Nigella oil at the Median lethal concentration (LC50) values for exposure periods (3, 5 and 7 days) to fumigation were (3594, 629, and 335 mg/L air) for adult stage and were (1040, 416, and 227 mg/L air) for larval stage, respectively. The toxicity effect of various essential oils against adults and larvae of T. castaneum at the LC50at 7 days fumigation could be arranged in descending order as follows: Garlic oil, Chili pepper oil, and Nigella oil. The histological changes showed that the organs slightly affected at the fumigation for 3 days. It may be concluded that the garlic essential oil is the good effective fumigant to control T. castaneum in the stored products and it recommended that the fumigation period does not exceed 3 days. The garlic essential oil has the potential for applications in IPM programs for stored-grain pests because of its high volatility and fumigant activity and its safety.

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Chemical profile and antiperiodontal potential of Thymus linearis Benth. Essential oil using ADMET prediction, In silico and in vitro tools

Main Group Chemistry ◽

10.3233/mgc-210115 ◽

2021 ◽

pp. 1-16

Author(s):

Abdul Rafey ◽

Aqsa Batool ◽

Muhammad Kamran ◽

Samiullah Khan ◽

Muhammad Akram ◽

...

Keyword(s):

Essential Oil ◽

In Silico ◽

Treatment Options ◽

Significant Inhibition ◽

Bacterial Biofilm ◽

Health Concern ◽

Major Constituent ◽

Antimicrobial Studies ◽

Development Of Resistance

Periodontitis is an important health concern that is associated with long term complications. Development of resistance to antibiotics limits the treatment options in periodontitis. We investigated Thymus linearis essential oil for treatment of periodontitis. The essential oil was collected using hydrodistillation and characterized using GC-MS. The constituents were further analyzed for druglikeness, ADMET properties and molecular docking using transcription regulators 2UV0 and 3QP5. The GC-MS results revealed that carvacrol was a major constituent (76.26%) followed by caryophyllene oxide (6.83%) and L-borneol (6.08%). The in vitro antimicrobial studies showed significant inhibition against Staphylococcus aureus, Staphylococcus epidermidis and Pseudomonas aeruginosa (MIC range 0.024 –0.312μg/mL). The essential oil showed a good inhibition of bacterial biofilm produced by S. aureus (72%) and S. epidermidis (70%). Finally, the antiquorum sensing property (30 mm zone of inhibition) was recorded with violacein inhibition (58%). Based on in silico and in vitro findings, it was concluded that T. linearis essential oil can be used for the treatment of periodontal infections.

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