ObjectiveSeveral physical, biochemical and antioxidant properties of two Nigerian stingless bee honey varieties (Melipona sp. and Hypotrigona sp.) were compared with Apis mellifera honey using standard analytical procedures.ResultsThe mean pH of Apis mellifera, Hypotrigona sp. and Melipona sp. honeys were 4.24 ± 0.28, 3.75 ± 0.11 and 4.21 ± 0.37 respectively. The mean moisture contents of the honeys were 11.74 ± 0.47, 17.50 ± 0.80, and 13.86 ± 1.06%. Honey samples from Hypotrigona sp. when compared with other honey samples had the highest mean total dissolved solids (370.01 ± 22.51 ppm), hydroxymethylfurfural (16.58 ± 0.37 mg/kg), total acidity (35.57 ± 0.42 meq/kg), protein content (16.58 ± 0.37 g/kg), phenol content (527.41 ± 3.60 mg/kg), and ascorbic acid (161.69 ± 6.70 mg/kg), antioxidant equivalent—ascorbic acid assay value (342.33 ± 0.78 mg/kg) as well as ferric reducing power (666.88 ± 1.73 μM Fe(II)/100 g) (p < 0.05). Several strong correlations were observed among some of the parameters of the honeys. This is the first study to compare the properties of Nigerian honey bees. Our results suggested that these honeys (specifically Hypotrigona sp. honey) is a good source of antioxidants comparable to A. mellifera honey.Electronic supplementary materialThe online version of this article (10.1186/s13104-017-2884-2) contains supplementary material, which is available to authorized users.

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Honey has been used traditionally for ages to treat infectious diseases. These amazing properties of honey are complex as a result of the involvement of various bioactive compounds. Honey is becoming sustainable as a reputable and effective therapeutic agent to practitioners of conventional medicine and to the general public. Its beneficial role has been endorsed due to its antimicrobial, antiviral, anti-inflammatory, and antioxidant activities as well as boosting of the immune system. Also, other medical conditions discussed here which can be treated with honey include but not limited to diarrhea, gastric ulcer, canine recurrent dermatitis, diabetics, tumor, and arthritis, and honey can also be used for skin disinfection and wound healing. Most of the known factors that give honey these properties include its acidity, high sugar, hydrogen peroxide, and other non-peroxide properties. Some factors may affect the therapeutic properties of honey such as exposure to heat and light.

The antimicrobial activity of honey depends on many factors, including its botanical origin, geographical and entomological source. The aim of this study was to evaluate and compare the antimicrobial potential of honey varieties from Apis mellifera, Hypotrigona sp. and Melipona sp. against MDR Staphylococcus aureus, Bacillus cereus, Escherichia coli, Pseudomonas aeruginosa ATCC 25783, Candida tropicalis, Candida albicans SC 5314 and Cryptococcus neoformans. By using standard microbiological procedure, the agar-well diffusion and broth microdilution methods were used to evaluate honey samples for their antimicrobial and non-peroxidase activity. Different concentrations of the honey samples showed inhibition zones diameter (mm) against the test isolates. The Minimum Inhibitory Concentrations (MICs) of the honey varieties from A. mellifera, Hypotrigona sp. and Melipona sp. ranged from 6.3-25.0%, 3.1-12.5% and 6.3-25.0% (v/v) respectively. There were no statistically significant differences between the mean MICs of honey varieties against E. coli, P. aeruginosa (ATCC 25783) and C. neoformans. Hypotrigona sp. honey had the least mean against most of the test organisms. The Minimum Biocidal Concentration (MBC) of the honey varieties from A. mellifera, Hypotrigona sp. and Melipona sp. against the test organisms varied from 6.3-50%, 3.1-25% and 12-50% (v/v) respectively. There were no significant differences between the mean MBCs of the honeys against MDR S. aureus (p=0.179), E. coli (p=0.564), P. aeruginosa (ATCC 25783) (p=0.846), and C. albicans (SC5314) (p=0.264). The honeys had some levels of non-peroxidase activity against E. coli, P. aeruginosa (ATCC 25783) and C. neoformans. This study has scientifically authenticated the potential use of stingless bee honeys from "Okotobo and Ifufu" as complementary therapeutic agents.

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