Lime (Citrus aurantifolia (Christm.) Swingle) Essential Oils: Volatile Compounds, Antioxidant Capacity, and Hypolipidemic Effect

Lime peels are mainly obtained from the byproducts of the juice manufacturing industry, which we obtained and used to extract essential oil (2.3%) in order to examine the antioxidant and hypolipidaemic effects. We identified 60 volatile compounds of lime essential oil (LEO) with GC/MS, of which the...

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Published inFoods Vol. 8; no. 9; p. 398
Main Authors Lin, Li-Yun, Chuang, Cheng-Hung, Chen, Hsin-Chun, Yang, Kai-Min
Format Journal Article
LanguageEnglish
Published Switzerland MDPI 07.09.2019
MDPI AG
Subjects
2,2-diphenyl-1-picrylhydrazyl
alanine transaminase
animal models
antioxidant activity
antioxidant capacity
antioxidants
aspartate transaminase
beta-pinene
blood serum
byproducts
Citrus aurantiifolia
diet
essential oils
fatty liver
food processing
gamma-terpinene
gas chromatography-mass spectrometry
hyperlipidemia
hypolipidemic effect
lime essential oil (LEO)
lime juice
limonene
lipemic effect
low density lipoprotein cholesterol
obesity
protective effect
rats
triacylglycerols
volatile compounds
antioxidant capacity
lime essential oil (LEO)
hypolipidemic effect
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Summary:Lime peels are mainly obtained from the byproducts of the juice manufacturing industry, which we obtained and used to extract essential oil (2.3%) in order to examine the antioxidant and hypolipidaemic effects. We identified 60 volatile compounds of lime essential oil (LEO) with GC/MS, of which the predominant constituents were limonene, γ-terpinene, and β-pinene. Lime essential oil was measured according to the DPPH assay and ABTS assay, with IC50 values of 2.36 mg/mL and 0.26 mg/mL, respectively. This study also explored the protective effects of LEO against lipid-induced hyperlipidemia in a rat model. Two groups of rats received oral LEO in doses of 0.74 g/100 g and 2.23 g/100 g with their diets. Eight weeks later, we found that the administration of LEO improved the serum total cholesterol, triglyceride, low-density lipoprotein cholesterol, alanine aminotransferase, and aspartate transaminase levels in the hyperlipidemic rats (p < 0.05). Simultaneously, the LEO improved the health of the rats in terms of obesity, atherogenic index, and fatty liver.
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ISSN:2304-8158
2304-8158
DOI:10.3390/foods8090398