scholarly journals THE IMPACT OF TECHNOLOGICAL FACTORS OF HONEY ON ITS ADDITIONAL QUALITATIVE INDICATORS

2021 ◽  
pp. 42-50
Author(s):  
Е.А. МУРАШОВА ◽  
О.А. ФЕДОСОВА ◽  
О.В. СЕРЕБРЯКОВА
Keyword(s):  
Electrical Conductivity ◽  
Ph Value ◽  
Raw Materials ◽  
Federal State ◽  
Acidic Ph ◽  
Botanical Origin ◽  
Technological Factors ◽  
Sugar Syrup ◽  
Acacia Honey ◽  
The Impact

Проблема и цель. Целью работы стало исследование воздействия технологических факторов меда на показатель (рН) и электропроводность. Методология. Исследования проводили в испытательной лаборатории ФГБНУ «ФНЦ пчеловодства». Для определения рН и электропроводности у медов разного ботанического происхождения заготавливали пробы и исследовали их. Для проведения сравнительного анализа исследуемых показателей у натурального и фальсифицированных проб меда использовали образцы фальсификатов, которые были получены при скармливании пчелам сахарного сиропа, инвертного сиропа, крахмальной патоки, свекловичной патоки. Контрольные и опытные образцы заготавливали в десятикратной повторности. Результаты. На основании проведенных исследований было выявлено, что самое низкое (кислое) значение водородного показателя (в среднем 2,8 ед.рН) у акациевого меда. Каштановый мед имел значение 4,7 ед. рН. Мед из падевого сырья характеризовался менее кислой средой, чем остальные, в среднем 5,3 ед.рН. Наивысшей электропроводностью обладал падевый мед (0,7 мСм/см) и мед с каштана посевного (0,6 мСм/см). Самым кислым показателем рН среди фальсификатов характеризовался мед из сахарного сиропа (2,1 ед.рН). Щелочным значением рН обладал мед из свекловичной патоки 7,9 ед.рН. Наименьшая электропроводность выявлена у меда из сахарного сиропа 0,1 мСм/см. Наивысшей электропроводностью обладал фальсификат на основе крахмала – 0,8 мСм/см. Заключение. В ходе исследования достоверно установлено, что показатель концентрации водородных ионов в меде имеет зависимость от ботанического источника сырья меда, то есть от вида меда. Электропроводность имеет линейную зависимость от источника медосбора. Водородный показатель и электропроводность натурального меда и фальсификатов отличаются по значениям. Определение показателей рН и электропроводности может отражать фальсификацию медов. Problem and purpose. The aim of the work was to study the impact of technological factors of honey on pH and electrical conductivity. Methodology. The research was carried out in the testing laboratory of Federal State Budgetary Scientific Institution "Federal Research Center of Beekeeping". To determine pH and electrical conductivity of honey of different botanical origin, samples were collected and examined. To carry out a comparative analysis of the studied indicators in natural and falsified honey samples, which were obtained when feeding bees with sugar syrup, invert syrup, starch syrup, beet syrup. Control and experimental samples were harvested in tenfold repetition. Results. Based on the studies, it was revealed that the lowest (acidic) pH value was found in acacia honey, which averaged 2.8 pH units. Chestnut honey had a value of 4.7 pH units. Honey from honeydew raw materials was characterized by a less acidic environment than the rest, having on average 5.3 pH units. The highest electrical conductivity was possessed by honeydew honey (0.7 mS/cm) and chestnut honey (0.6 mS/cm). Honey from sugar syrup had the most acidic pH among counterfeits (2.1 pH units). Alkaline pH was found in honey from beet syrup (7.9 pH units). The lowest electrical conductivity was found in honey from sugar syrup (0.1 mS/cm). The starch-based counterfeit had the highest electrical conductivity (0.8 mS/cm). Conclusion. In the course of the study, it was reliably established that the indicator of the concentration of hydrogen ions in honey was dependent on the botanical origin of honey, or the type of honey. Electrical conductivity had a linear dependence on the origin of honey. The hydrogen index and electrical conductivity of natural honey and counterfeit products differed in values. PH and conductivity measurements can reflect honey falsifying.

Preparation and Microstructure of (La0.5Sm0.5)2(Zr0.7Ce0.3)2O7 Ceramics Prepared by Chemical Coprecipitation Method

2016 ◽  
Vol 697 ◽  
pp. 89-92 ◽  
Author(s):  
Xian Kai Sun ◽  
Guang Hai Wang ◽  
Shi Chao Zhang ◽  
Hao Ran Sun ◽  
Kai Fang ◽  
...  
Keyword(s):  
Specific Surface ◽  
Surface Area ◽  
Specific Surface Area ◽  
Ph Value ◽  
Raw Materials ◽  
Ceramic Materials ◽  
Coprecipitation Method ◽  
Chemical Coprecipitation ◽  
The Impact ◽  
Chemical Coprecipitation Method

Ceramic materials of (La0.5Sm0.5)2(Zr0.7Ce0.3)2O7 composition powder was synthesized by chemical coprecipitation method using Sm2O3, La2O3, Ce (NO3)3·6H2O and ZrOCl2·8H2O powders as raw materials. Microstructure and phases of (La0.5Sm0.5)2(Zr0.7Ce0.3)2O7 (LSZCO) powder was examined by Transmission Electron Microscope (TEM) and X-ray diffraction (XRD). The specific surface area of powders were determined by BET specific surface area test. The structure of LSZCO powder remained in pyrochlore with the increase of temperature more than 1200 °C. According to the impact on the specific surface area of LSZCO powder, the factors of the process is ordered in descending sequence as follows: pH value, dispersant content, concentration of reactants, the reaction temperature.

scholarly journals Comparative study of special honey products and herbhoneys

2018 ◽  
pp. 117-120
Author(s):  
Anna Novák ◽  
Loránd Alexa ◽  
Béla Kovács ◽  
Nikolett Czipa
Keyword(s):  
Electrical Conductivity ◽  
Honey Bees ◽  
Ph Value ◽  
Biologically Active ◽  
Therapeutic Action ◽  
Botanical Origin ◽  
Multifloral Honey ◽  
Positive Effect ◽  
Active Substances ◽  
Natural Honey

Honey has a positive effect on human body due to its high content of biologically active substances (e.g. monosaccharides, vitamins, enzymes, amino acids, polyphenolic compounds). The properties of honey depend on its botanical origin due to the bioactive plant components, mainly secondary metabolites that are included in honey made by bees from nectar. Herbally infused honeys are delicious products that combine the therapeutic action of herbs and honey. Additionally, herbs can provide nutrient fortified syrup for honey bees and protect them against diseases and other ecological threats. The aim of this study was to define the physicochemical properties of multifloral honey, herb enriched natural honey and herbhoney samples. We measured the moisture content, pH value, electrical conductivity and proline content. Although great diversity was observed in the basic properties of the examined products. In our study, we found that the electrical conductivity shows the significant differ between the groups. All the samples, including the herbhoneys passes the quality standards of honeys.

scholarly journals Fungal Diversity and Over-Represented Non-Nectariferous Plants Pollen in Honey. Case Study on Acacia Honey Authenticity, Analyzed in APHIS Laboratory

2020 ◽  
Vol 77 (2) ◽  
pp. 54
Author(s):  
Otilia BOBIŞ ◽  
Daniel Severus DEZMIREAN ◽  
Victoriţa BONTA ◽  
Adriana Cristina URCAN ◽  
Adela Ramona MOISE ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Pollen Analysis ◽  
Pollen Grains ◽  
Botanical Origin ◽  
Photodiode Array Detection ◽  
Acacia Honey ◽  
Photodiode Array ◽  
Array Detection

Pollen analysis is the basic method for the determination of the botanical and geographical origin of honey. However, the presence of over-represented pollen in honeys may lead to false results of the analysis. This can be more severe if this pollen is present in unifloral under-represented honeys of commercial importance (e.g. thyme or acacia honey). In the present study, we investigated the abundance of nectarless pollen grains on several quality characteristics in honey samples. In particular, the physic-chemical (diastase activity, electrical conductivity, sugars and HMF content) analysis were carried out in order to confirm the declared botanical origin. Spectrophotometric method was used for diastase activity determination, electrical conductivity was determined by potentiometry and chromatographic determinations for HMF content (photodiode array detection) and sugars (HPLC refractive index detection). The present study confirms that, in the case of non-nectariferous pollen presence in honeys, a second count must be made, excluding this pollen type and pollen analysis alone cannot give reliable results for the determination of the botanical origin. Consequently, pollen analysis should be combined with other analyses, especially in honeys with under-represented pollens, to give precise results for the botanical characterization and labeling of honeys.

PENGEMBANGAN MINUMAN BERBASIS TEH DAN REMPAH SEBAGAI MINUMAN FUNGSIONAL

2019 ◽  
Vol 1 (2) ◽  
Author(s):  
Siti Chairiyah Batubara ◽  
Nindia Arum Pratiwi
Keyword(s):  
Ph Value ◽  
Raw Materials ◽  
Mixture Design ◽  
Total Sugar ◽  
Brown Sugar ◽  
Physical Test ◽  
Chemical Test ◽  
Carbohydrate Level ◽  
Optimum Formula ◽  
Functional Drink

Teh dan rempah memiliki kandungan antioksidan yang berguna untuk kesehatan. Tujuan dari pembelajaran ini adalah untuk mendapatkan formula minuman fungsional teh dan rempah terbaik. Penelitian ini menggunakan mixture design untuk menentukan formula optimum minuman fungsional terbaik yang terdiri dari gula merah, bubuk kayu manis dan bubuk kapulaga. Berdasarkan input batas atas dan batas bawah dari bahan baku sehingga didapatkan 16 formulasi yang akan diteliti. Untuk batas atas gula merah yaitu 40 dan batas bawah gula merah yaitu 35. Untuk batas atas bubuk kayu manis yaitu 15 dan batas bawah kayu manis yaitu 10. Untuk batas atas bubuk kapulaga yaitu 50 dan batas bawah bubuk kapulaga yaitu 45. Untuk menentukan kualitas minuman fungsional dilakukan uji kimia (uji karbohidrat, gula total dan nilai pH, uji fisik (Uji viskositas), uji organoleptik (uji hedonik untuk warna, aroma, rasa dan kekentalan) dan mutu hedonik yang ditentukan dari kesukaan panelis terhadap warna, aroma, rasa dan kekentalan) dan uji antioksidan. Penelitian ini untuk mendapatkan formula optimum yang terbaik dari hasil pengacakan oleh mixture design. Hasil dari pengolahan mixture design adalah anova, grafik dan duncan. Berdasarkan hasil penelitian formula minuman fungsional yang masih dapat diterima adalah formulasi 11 yang terdiri dari 40% gula merah, 12.67% bubuk kayu manis dan 47.32% bubuk kapulaga. Formula 11 mengandung 0.39% karbohidrat, 15.46% gula total, 5.38% pH 4.98%  viskositas dan 255.41 mg antoksidanSpice tea have antioxidants compounds that are beneficial for health. The purpose of this study was to get the best spice tea formulation as a functional drink. This research used a mixture design to obtain the best optimum formula functional drink that composed by brown sugar, cinnamon powder and cardamom powder. Based on input the upper and lower limits of raw materials then get 16 formulations will be researched. The upper limit of brown sugar, cinnamon powder and cardamom powder is 40, 15 and 50. The lower limit of brown sugar, cinnamon powder and cardamom powder is 35, 10 and 45. The functional drink quality determined by chemical test (carbohydrate level, total sugar and pH value), physical test (viscosity level), organoleptic test and antioxidan level. Data was processed statistically using Design Expert application with one-way analysis (one way ANOVA) at 95% confidence level. Duncan`s follow-up was carried out to find out the differences between treatments if ANOVA had a significant effect. Based on the results of the research, formulation functional drink are still aceptable is formulation 11 of 40% brown sugar, 12.67% cinnamon powder and 47.32% cardamom powder. Formulation 11 contained carbohydrate level 0.39%, total sugar 15.46% and pH value 5.38%, viscosity level 4.98%, and antioxidan level 255.41 mg

Оrganic Meat Production of Broiler Chickens Hubbard Redbro Cross

2020 ◽  
Keyword(s):  
Broiler Chickens ◽  
Raw Materials ◽  
Animal Health ◽  
Meat Products ◽  
Poultry Meat ◽  
Meat Production ◽  
Significant Difference ◽  
Environmentally Safe ◽  
The Impact

This article presents the results of studying the impact of housing and feeding conditions on broiler chickens of Hubbard RedBro cross, as well as the quality of products obtained when using floor and cage content, in a farm. It established that when receiving a mixed feed of own production using feed raw materials grown on a farm without the use of pesticides, a statistically significant decrease in potentially dangerous substances for animal health is recorded. Compared with factory feed, it has reduced the content of pesticides by 14 times, and mercury and arsenic by 24 times, cadmium by five times, and lead by ten times. The results of the study of economic indicators of growing Hubbard RedBro cross broiler chickens, as well as the chemical composition and quality of carcasses, indicated that there was no significant difference between the floor and cell conditions of keeping. Still, the use of a diet based on eco-feeds contributed to a statistically significant decrease in the concentration of toxic metals in the muscles of the poultry of the experimental groups. As a result, it found that the use of the studied compound feed in the diets of broiler chickens increased the indicators of Biosafety and ensured the production of environmentally safe ("organic") poultry meat products.

Impact of Raw Materials and Processing Techniques on The Microbiological Quality of Egyptian Domiati Cheese

2020 ◽  
Keyword(s):  
Raw Materials ◽  
Microbiological Quality ◽  
Raw Milk ◽  
Plate Count ◽  
E Coli ◽  
Fresh Cheese ◽  
Processing Techniques ◽  
The Impact ◽  
Total Yeast

Domiati cheese is the most popular brand of cheese ripened in brine in the Middle East in terms of consumed quantities. This study was performed to investigate the impact of the microbiological quality of the used raw materials, the applied traditional processing techniques and ripening period on the quality and safety of the produced cheese. Three hundred random composite samples were collected from three factories at Fayoum Governorate, Egypt. Collected samples represent twenty-five each of: raw milk, table salt, calf rennet, microbial rennet, water, environmental air, whey, fresh cheese, ripened cheese & swabs from: worker hands; cheese molds and utensils; tanks. All samples were examined microbiologically for Standard Plate Count (SPC), coliforms count, Staphylococcus aureus (S. aureus) count, total yeast & mould count, presence of E. coli, Salmonellae and Listeria monocytogenes (L. monocytogenes). The mean value of SPC, coliforms, S. aureus and total yeast & mould counts ranged from (79×102 CFU/m3 for air to 13×108 CFU/g for fresh cheese), (7×102 MPN/ cm2 for tank swabs to 80×106 MPN/ml for raw milk), (9×102 CFU/g for salt to 69×106 CFU/g for fresh cheese) and (2×102 CFU/cm2 for hand swabs to 60×104 CFU/g for fresh cheese), respectively. Whereas, E. coli, Salmonella and L. monocytogenes failed to be detected in all examined samples. There were significant differences in all determined microbiological parameters (p ≤0.05) between fresh and ripened cheese which may be attributed to different adverse conditions such as water activity, pH, salt content and temperature carried out to improve the quality of the product.

scholarly journals Queensland Family Cohort: a study protocol

BMJ Open ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. e044463
Author(s):  
Danielle Borg ◽  
Kym Rae ◽  
Corrine Fiveash ◽  
Johanna Schagen ◽  
Janelle James-McAlpine ◽  
...  
Keyword(s):  
Mental Health ◽  
Family Environment ◽  
Biological Samples ◽  
Local Governments ◽  
Financial Stability ◽  
Federal State ◽  
Physical And Mental Health ◽  
Future Health ◽  
The Impact

IntroductionThe perinatal–postnatal family environment is associated with childhood outcomes including impacts on physical and mental health and educational attainment. Family longitudinal cohort studies collect in-depth data that can capture the influence of an era on family lifestyle, mental health, chronic disease, education and financial stability to enable identification of gaps in society and provide the evidence for changes in government in policy and practice.Methods and analysisThe Queensland Family Cohort (QFC) is a prospective, observational, longitudinal study that will recruit 12 500 pregnant families across the state of Queensland (QLD), Australia and intends to follow-up families and children for three decades. To identify the immediate and future health requirements of the QLD population; pregnant participants and their partners will be enrolled by 24 weeks of gestation and followed up at 24, 28 and 36 weeks of gestation, during delivery, on-ward, 6 weeks postpartum and then every 12 months where questionnaires, biological samples and physical measures will be collected from parents and children. To examine the impact of environmental exposures on families, data related to environmental pollution, household pollution and employment exposures will be linked to pregnancy and health outcomes. Where feasible, data linkage of state and federal government databases will be used to follow the participants long term. Biological samples will be stored long term for future discoveries of biomarkers of health and disease.Ethics and disseminationEthical approval has been obtained from the Mater Research Ethics (HREC/16/MHS/113). Findings will be reported to (1) QFC participating families; (2) funding bodies, institutes and hospitals supporting the QFC; (3) federal, state and local governments to inform policy; (4) presented at local, national and international conferences and (5) disseminated by peer-review publications.

scholarly journals 2-Piece Cork Stoppers as Alternative for Valorization of Thin Cork Planks: Analysis by LCA Methodology

Foods ◽  
2021 ◽  
Vol 10 (4) ◽  
pp. 873
Author(s):  
Francisco Javier Flor-Montalvo ◽  
Agustín Sánchez-Toledo Ledesma ◽  
Eduardo Martínez Cámara ◽  
Emilio Jiménez-Macías ◽  
Jorge Luis García-Alcaraz ◽  
...  
Keyword(s):  
Life Cycle Assessment ◽  
Life Cycle ◽  
Raw Materials ◽  
Lca Methodology ◽  
Significant Difference ◽  
Different Dimensions ◽  
The Impact ◽  
Different Thickness ◽  
Cork Stoppers ◽  
Wine Bottle

Natural stoppers are a magnificent closure for the production of aging wines and unique wines, whose application is limited by the availability of raw materials and more specifically of cork sheets of different thickness and quality. The growing demand for quality wine bottle closures leads to the search for alternative stopper production. The two-piece stopper is an alternative since it uses non-usable plates in a conventional way for the production of quality caps. The present study has analyzed the impact of the manufacture of these two-piece stoppers using different methodologies and for different dimensions by developing an LCA (Life Cycle Assessment), concluding that the process phases of the plate, its boiling, and its stabilization, are the phases with the greatest impact. Likewise, it is detected that the impacts in all phases are relatively similar (for one kg of net cork produced), although the volumetric difference between these stoppers represents a significant difference in impacts for each unit produced.

scholarly journals Effect of SWCNT-Tuball Paper on the Lightning Strike Protection of CFRPs and Their Selected Mechanical Properties

Materials ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3140
Author(s):  
Kamil Dydek ◽  
Anna Boczkowska ◽  
Rafał Kozera ◽  
Paweł Durałek ◽  
Łukasz Sarniak ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Carbon Nanotubes ◽  
Electrical Conductivity ◽  
Copper Foil ◽  
Impact Resistance ◽  
Mechanical Analysis ◽  
Lightning Strike ◽  
Single Wall Carbon Nanotubes ◽  
Carbon Fibre Reinforced Polymer ◽  
The Impact

The main aim of this work was the investigation of the possibility of replacing the heavy metallic meshes applied onto the composite structure in airplanes for lightning strike protection with a thin film of Tuball single-wall carbon nanotubes in the form of ultra-light, conductive paper. The Tuball paper studied contained 75 wt% or 90 wt% of carbon nanotubes and was applied on the top of carbon fibre reinforced polymer before fabrication of flat panels. First, the electrical conductivity, impact resistance and thermo-mechanical properties of modified laminates were measured and compared with the reference values. Then, flat panels with selected Tuball paper, expanded copper foil and reference panels were fabricated for lightning strike tests. The effectiveness of lightning strike protection was evaluated by using the ultrasonic phased-array technique. It was found that the introduction of Tuball paper on the laminates surface improved both the surface and the volume electrical conductivity by 8800% and 300%, respectively. The impact resistance was tested in two directions, perpendicular and parallel to the carbon fibres, and the values increased by 9.8% and 44%, respectively. The dynamic thermo-mechanical analysis showed higher stiffness and a slight increase in glass transition temperature of the modified laminates. Ultrasonic investigation after lightning strike tests showed that the effectiveness of Tuball paper is comparable to expanded copper foil.

scholarly journals Process Modeling and Simulation of Tableting—An Agent-Based Simulation Methodology for Direct Compression

Pharmaceutics ◽  
2021 ◽  
Vol 13 (7) ◽  
pp. 996
Author(s):  
Niels Lasse Martin ◽  
Ann Kathrin Schomberg ◽  
Jan Henrik Finke ◽  
Tim Gyung-min Abraham ◽  
Arno Kwade ◽  
...  
Keyword(s):  
Raw Materials ◽  
Pilot Scale ◽  
Physical Models ◽  
Agent Based Simulation ◽  
Validation Data ◽  
Agent Based ◽  
Industrial Processing ◽  
Digital Twins ◽  
Product And Process ◽  
The Impact

In pharmaceutical manufacturing, the utmost aim is reliably producing high quality products. Simulation approaches allow virtual experiments of processes in the planning phase and the implementation of digital twins in operation. The industrial processing of active pharmaceutical ingredients (APIs) into tablets requires the combination of discrete and continuous sub-processes with complex interdependencies regarding the material structures and characteristics. The API and excipients are mixed, granulated if required, and subsequently tableted. Thereby, the structure as well as the properties of the intermediate and final product are influenced by the raw materials, the parametrized processes and environmental conditions, which are subject to certain fluctuations. In this study, for the first time, an agent-based simulation model is presented, which enables the prediction, tracking, and tracing of resulting structures and properties of the intermediates of an industrial tableting process. Therefore, the methodology for the identification and development of product and process agents in an agent-based simulation is shown. Implemented physical models describe the impact of process parameters on material structures. The tablet production with a pilot scale rotary press is experimentally characterized to provide calibration and validation data. Finally, the simulation results, predicting the final structures, are compared to the experimental data.

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