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Investigation on the possibility to enhancing honey spray drying process and powders properties by ultrafiltration pre-treatment

Katarzyna Samborska Alicja Barańska Daria Bodel Aleksandra Jedlińska

Chemical and Process Engineering | 2019 | vol. 40 | No 3 | 305-313 | DOI: 10.24425/cpe.2019.126118

Keywords spray drying honey maltodextrin ultrafiltration

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Abstract

Linden honey ultrafiltration (15 kDa MWCO ceramic membrane) was performed as honey solution pre-treatment before spray drying. Feed and retentate solutions with the addition of maltodextrin as a carrier were spray dried. Drying yield and physical properties of powders were studied (after drying and after 12 weeks of storage). During ultrafiltration it was possible to remove some amount of sugars responsible for honey low glass transition temperature, while keeping protein compounds. Yet, it did not have a significant impact on the drying performance and improvement of powder physical properties immediately after drying and after storage. However, the possibility to remove sugars from honey solution by ultrafiltration can be an encouragement for further research.

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Authors and Affiliations

Katarzyna Samborska

Alicja Barańska

Daria Bodel

Aleksandra Jedlińska

Honey bee immunity and physiology are enhanced by consuming high-fat diets

Mushtaq T. Al-Esawy

Journal of Plant Protection Research | 2023 | vol. 63 | No 2 | 185-195 | DOI: 10.24425/jppr.2023.145753

Keywords fat encapsulation honey bee immunity phenoloxidase protein

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Abstract

This study aimed to evaluate the nutritional behavior and some immunological criteria (encapsulation index and phenoloxidase – PO activity, the key enzyme for melanization) as well as to study the effect of protein to fat (P : F) diets on hypopharyngeal gland (HPG) protein content. Bees were restricted to consuming specific P : F diets varying in fat ratio under laboratory conditions. These diets included 25 : 1, 10 : 1, 5 : 1 (low-fat diet, LFD); 1 : 1 (equal-fat diet); 1 : 5, 1 : 10 (high-fat diet, HFD), and 1 : 0 (zero-fat diet) as a control. Bees preferred low-fat diets over high-fat diets, where it was 11.27 ± 0.68 μl · day–1 bee in 10 : 1 P : F, while it was 4.99 ± 0.67 μl · day–1 bee in 1 : 10 P : F. However, sucrose consumption was higher in high-fat diets where it was 25.83 ± 1.69 μl · day ^–1 bee in 10 : 1 P: F, while it was 30.66 ± 0.9 μl · day–1 bee in 1 : 10 P : F. The encapsulation index and phenoloxidase activity of bees were positively linked with the fat level they consumed during all 10 days. The maximum percentage of encapsulation index was 74.6 ± 7.2% in bees fed a high-fat diet, whereas the minimum percentage was 16.5 ± 3.6% in bees which consumed a lowfat diet. Similarly, phenoloxidase activity increased in the haemolymph with increasing fat consumed by bees (0.001 ± 0.0001 and 0.005 ± 0.0003 mM · min ^–1 · mg ^–1 at 25 : 1 and 1 : 10 P : F, respectively). The protein content of hypopharyngeal glands in bees which consumed HFD was double that of LFD. Overall results suggest a connection between a fat diet and bee health, indicating that colony losses in some cases can be reduced by providing a certain level of fat supplemental feeding along with sucrose and protein nutrition.

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Authors and Affiliations

Mushtaq T. Al-Esawy

Plant Protection Department, Faculty of Agriculture, University of Kufa, Najaf, Iraq

Efficacy of manuka honey with conventional antifungals on Malassezia pachydermatis

P. Váczi E. Čonková Z. Malinovská

Polish Journal of Veterinary Sciences | 2023 | vol. 26 | No 2 | 257-263 | DOI: 10.24425/pjvs.2023.145037

Keywords Malassezia pachydermatis manuka honey azole antifungals synergy

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Abstract

Yeast infections such as otitis externa and seborrheic dermatitis in dogs and cats are frequently associated with Malassezia pachydermatis secondary infection. It is part of the normal cutaneous microflora of most warm-blooded vertebrates, however, under certain conditions, it can become a causative agent of infection that needs to be treated pharmacologically. Azole derivatives are the drugs of the first choice. An interesting trend in developing resistance is the use of natural substances, which include manuka honey with confirmed antimicrobial properties. The main intention of this research was to evaluate the mutual effect of manuka honey in combination with four conventional azole antifungals – clotrimazole, fluconazole, itraconazole, and miconazole – on 14 Malassezia pachydermatis isolates obtained from dogs and 1 reference strain. A slightly modified M27–A3 method (CLSI 2008) and the checkerboard test (Nikolić et al. 2017) were used for this purpose. Our results show an additive effect of all 4 antifungals with manuka honey concurrent use. Based on the determined values of fractional inhibitory concentration index (FICI – 0.74±0.03 when manuka honey combined with clotrimazole, 0.96±0.08 with fluconazole, 1.0±0 with miconazole and 1.16±0.26 with itraconazole), it was found in all cases that the effect of substances used is more pronounced in mutual combination than when used separately.

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Authors and Affiliations

P. Váczi

E. Čonková

Z. Malinovská

Department of Pharmacology and Toxicology, University of Veterinary Medicine and Pharmacy, Komenského 73, 041 81 Košice, Slovakia

Reduced deformed wing virus of Apis mellifera L. nurses by high fat diets under laboratory conditions

Baida Mohsen Alshukri Mushtaq Talib Al-Esawy

Journal of Plant Protection Research | 2021 | vol. 61 | No 1 | 57-62 | DOI: 10.24425/jppr.2021.136269

Keywords deformed wing virus fat diets honey bee nutrition protein

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Abstract

Deformed wing virus (DWV) is one of the most widespread viral infections of European honey bee Apis mellifera L. worldwide. So far, this is the first study which tested the effect of different ratios of synthetic protein to fat (P : F) diets on the health of broodless nurseaged honey bees in the laboratory. The aim of the current study was to determine the load of DWV in the whole body of A. mellifera that were fed different ratios of P : F diets (25 : 1, 10 : 1, 5 : 1, 1 : 1, 1 : 5, 1 : 10, 1 : 12.5 and 1 : 0 as a control). The methods involved feeding bees the tested diets for 10 days and then measuring the virus titre using qPCR technique. The results showed that DWV concentration decreased as the fat content of diets consumed increased. The copy number of viral genomes declined from 7.5 × 105 in the zero-fat diet (1 : 0) to 1.6 × 102 virus genomes in 1 : 12.5 (P : F). We can conclude that there is a positive relationship between fat diets and bee immunity and overall results suggest a connection between fat diet and bee health, indicating that colony losses can be reduced by providing a certain protein and fat supplemental feeding.

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Bibliography

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Authors and Affiliations

Baida Mohsen Alshukri

Mushtaq Talib Al-Esawy

1 2

Plant Protection Department, University of Kufa, Najaf Governorate, Iraq
Biosciences Institute, Newcastle University, Newcastle upon Tyne, United Kingdom

Honey in the Ritual and Mythological Semiosphere of Ukrainians of the Carpathians and Precarpathian Region (Exemplified by Christmas Eve as the Prologue to Christmas)

Ulyana Movna

Slavia Orientalis | 2023 | vol. LXXII | No 1 | 29-42 | DOI: 10.24425/slo.2023.145195

Keywords honey Holy evening ritual semiosphere Ukrainians the Carpathians and the Precarpathian region

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Abstract

Based on the author’s assembled field materials and analysis of historical, folkloristic and ethnological as well as ethnolinguistic literature, the article provides specific research into the symbolic functionality of honey in the ritual and mythological semiosphere of Ukrainians of the Carpathians and Precarpathian region, in particular – the ritualism of Christmas Eve as the prologue to Christmas. Established has been the extremely high semiotic status of honey and the presence of a stable range of polysemantic meanings. The multi‐vector semantics of honey, which was a universal symbol of sweetness, is revealed; a mediator with the afterlife; a container of the sacred; a bearer of the healing properties and connotations of the enchantment, an apotropaic, a cultural symbol that nominated the boundaries of “his”, organized by the presence of the human space. The ritual practice of tasting honey (as a separate dish or as a component of other dishes and drinks) at a pre‐Christmas dinner is considered universal not only for Ukrainians, but for many European nations.

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Ulyana Movna

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Investigation on the possibility to enhancing honey spray drying process and powders properties by ultrafiltration pre-treatment

Abstract

Authors and Affiliations

Honey bee immunity and physiology are enhanced by consuming high-fat diets

Abstract

Authors and Affiliations

Efficacy of manuka honey with conventional antifungals on Malassezia pachydermatis

Abstract

Authors and Affiliations

Reduced deformed wing virus of Apis mellifera L. nurses by high fat diets under laboratory conditions

Abstract

Bibliography

Authors and Affiliations

Honey in the Ritual and Mythological Semiosphere of Ukrainians of the Carpathians and Precarpathian Region (Exemplified by Christmas Eve as the Prologue to Christmas)

Abstract

Authors and Affiliations