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Table 1 Other bioactivities of Citrus fruits reviewed from studies in latest 6 years

From: Citrus fruits as a treasure trove of active natural metabolites that potentially provide benefits for human health

Bioactivities

Components

Sources

Subjects

Results

Ref.

Hepatoprotective effects

Citromitin, tangeretin, nobiletin

C. depressa juice

d-Galactosamine-treated rats

Suppression on d-galactosamine-induced liver injury

[37]

Limonin

Citrus fruits

d-Galactosamine-treated rats

Attenuation of the markers of hepatic damage and hepatic inflammation

Suppression on oxidative stress and expression of TLR-4 but not TLR-2

[109]

Anti-microbial effects

Essential oils

Three C. species (orange, lemon, madarin) from Spain

Enterococcus faecium, Staphylococcus aureus, Pseudomonas aeruginosa, and Salmonella enterica subsp. enterica ser. Enteritidis

Inhibition of spoiling and pathogenic microorganisms

[110]

Naringenin

Citrus fruits

Salmonella Typhimurium LT2

Attenuation of Salmonella Typhimurium virulence and cell motility

[111]

Naringenin, kaempferol, quercetin and apigenin

Citrus fruits

Escherichia coli O157:H7 and V. harveyi

Affection on antagonists of cell–cell signalling

Suppression the biofilm formation

Alteration the expression of genes encoding type three secretion system in V. harveyi ( naringenin)

[112]

Anti-allergic effects

Hesperetin, naringenin

Citrus fruits

Rat basophil leukemia RBL-2H3 cells

Inhibition of degranulation by suppression of pathway signals

Reduction the symptoms of allergy by inhibiting phosphorylation of Akt

[113]

Anti-melanogenesis effects

Extract

Unripe fruit of C. hassaku

Cultured murine B16 melanoma cells, the dorsal skin of brownish guinea pigs

Inhibition of melanogenesis without any effects on cell proliferation in cultured murine B16 melanoma cells after glucosamine exposure

Prevention effects in vivo against UVB-induced pigmentation

[114]

Anti-obesity anti-hyperglycemic effects

Limonoid, nomilin

Citrus fruits

Mice fed a high-fat diet

Mediation through the activation of TGR5

[115]

Anti-obesity effects

Extract

Peels of immature C. sunki

High-fat diet-induced obese C57BL/6 mice and mature 3T3-L1 adipocytes

Elevation of β-oxidation and lipolysis in adipose tissue

[116]

Polymethoxyflavones, coumarin derivatives

Peels of Citrus fruits

Mouse 3T3-L1 preadipocyte cells

Monitoring the prevention of accumulation of lipid droplets

[46]

Inhibitory effects on pulmonary fibrosis

Alkaline

C. reticulata

Pulmonary fibrosis rats

Inhibition of the proliferation of MRC-5

Prevention effect on bleomycin-induced pulmonary fibrosis in rats

[117]

Anti-diabetic effects

Extract

Yuja (C. junos Tanaka) pulp

Mice fed a high fat diet

Reduction the weight gain and the rise in liver fat content, serum triacylglycerol, total cholesterol, and insulin resistance

Reduction the secretion of adipocytokines such as leptin and resistin

Increase on phosphorylation of AMPK in muscle tissues

[118]

Wound healing effects

Extract

C. tamurana

Fibroblasts cells (TIG-119)

Inhibition proliferation of TIG-119 cells at higher concentration (>1.0 mg/mL)

Exhibition linear and time-dependent cell proliferation at lower concentrations (0.1, 0.25, 0.5, and 0.75 mg/mL)

Acceleration the migration of cells towards the wounded region

[119]

Antianxiety-like effects

Chimpi

Dried Citrus peels

ICR male mice

Possession a significant anxiolytic-like effect similar to that of fluoxetine

[120]

  1. The table reviewed latest reported studies concerning other bioactivities of Citrus fruits, including hepatoprotective effects, anti-microbial effects, anti-allergic effects, anti-melanogenesis effects, anti-obesity effects, anti-diabetic effects, etc