Physical and chemical screening of honey samples available in the Saudi market: An important aspect in the authentication process and quality assessment
Haya I. Aljohar,Hadir M. Maher,Hadir M. Maher,Jawza Albaqami,Maha Al-Mehaizie,Rawan Orfali,Razan Orfali,Sarah Alrubia +7 more
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TL;DR: The current work focusses on studying the authenticity of various types of honey sold in Riyadh market with results compared with the Saudi Arabian standards, Codex Alimentarius Commission (2001), and harmonized methods of the international honey commission.
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Abstract: Honey is becoming accepted as a reputable and effective therapeutic agent by practitioners of conventional medicine and by the general public. It has many biological activities and has been effectively used in the treatment of many diseases, e.g. gastrointestinal diseases, skin diseases, cancer, heart diseases, and neurological degeneration. Honey is an excellent source of energy containing mainly carbohydrates and water, as well as, small amounts of organic acids, vitamins, minerals, flavonoids, and enzymes. As a natural product with a relatively high price, honey has been for a long time a target for adulteration. The authenticity of honey is of great importance from commercial and health aspects. The study of the physical and chemical properties of honey has been increasingly applied as a certification process for the purpose of qualification of honey samples. The current work focusses on studying the authenticity of various types of honey sold in Riyadh market (24 samples). For this purpose, physical properties (pH, hydroxylmethylfurfural HMF, and pollen test) were measured. Besides, sugar composition was evaluated using Fehling test and an HPLC method. Elemental analysis was carried out using inductively coupled plasma (ICP). In addition, the presence of drug additives was assessed by means of GC-MS. The obtained results were compared with the Saudi Arabian standards, Codex Alimentarius Commission (2001), and harmonized methods of the international honey commission.
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Citations
A Modified Folin-Ciocalteu Assay for the Determination of Total Phenolics Content in Honey
TL;DR: In this article , the effect of pH on the Folin-Ciocalteu assay was investigated, and the modified FPC method was then validated in accordance with current International Council on Harmonisation (ICH) guidelines.
Nondestructive Determination of Diastase Activity of Honey Based on Visible and Near-Infrared Spectroscopy.
TL;DR: The overall results of this paper showed that the diastase activity of honey can be determined quickly and non-destructively with Vis/NIR spectral methods, which can be used to detect DN in the process of honey production and processing, and to maximize the nutrient content of honey.
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Chemical Composition and Antimicrobial Activity of New Honey Varietals
Magdalena Kunat-Budzyńska,Anna Rysiak,Adrian Wiater,Marcin Grąz,Mariola Andrejko,Michał Budzyński,Maciej S. Bryś,Marcin Sudziński,Michał Tomczyk,Marek Gancarz,Robert Rusinek,Aneta A. Ptaszyńska +11 more
TL;DR: In this paper , the authors examined for the first time antimicrobial properties of novel varietal honeys, i.e., plum, rapeseed, Lime, Phacelia, honeydew, sunflower, willow, and multifloral-P (Prunus spinosa L.), multifloal-AP (Acer negundo L., Prunus spinos L.), multifloral -Sa (Salix sp.), multif-loralBr (Brassica napus L.), their antimicrobial activity was tested against bacteria (such as Escherichia coli, Bacillus circulans, Staphylococcus aureus, Pseudomonas aeruginosa), yeasts ( such as Aspergillus niger).
Large-scale Pollen Recognition with Deep Learning
André R. de Geus,A Z Barcelos Celia,Marcos A. Batista,Sergio Francisco Serafim Monteiro da Silva +3 more
- 01 Sep 2019
TL;DR: This study investigated the use of transfer learning from pre-trained deep neural networks for pollen classification and compared their results with training from scratch and with promising predesigned features, suggesting that the fine-tuned deep learning architectures can be successfully applied to pollen classification.
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Chemical profiling, biological properties and environmental contaminants of stingless bee honey and propolis
TL;DR: Stingless bee honey is a unique edible natural product and has been used by humankind for millenniums for various purposes, mostly as food and for therapeutic uses.
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TL;DR: In this paper, several honey samples (27) from Burkina Faso were analyzed to determine their total phenolic, flavonoid and proline contents as well as their radical scavenging activity.
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TL;DR: The results of the study showed that total phenolic content, antioxidant activity, and color parameters differ widely among different honey types as discussed by the authors, and the relationship between the parameters analysed were found to be statistically significant (p < 0.05).
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Antioxidant activity of Portuguese honey samples: Different contributions of the entire honey and phenolic extract
TL;DR: In this paper, the antioxidant activity of Portuguese honeys was evaluated considering the different contribution of entire samples and phenolic extracts and a discriminant analysis was also performed, giving satisfactory results once the six samples were clustered in six individual groups obtained through the definition of two discriminant analyses dimensions.
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Honey stimulates inflammatory cytokine production from monocytes
TL;DR: The results suggest that the effect of honey on wound healing may in part be related to the stimulation of inflammatory cytokines from monocytic cells, known to play an important role in healing and tissue repair.
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