scholarly journals Alternative wax recovery from Apis mellifera: Different combs size effect

2021 ◽  
Vol 10 (8) ◽  
pp. e31310817313
Author(s):  
Gleydson Luiz de Oliveira Neto ◽  
Lucas Lima Verardo ◽  
Cleube Andrade Boari ◽  
Rodrigo Diniz Silveira
Keyword(s):  
Apis Mellifera ◽  
Size Effect ◽  
Extraction Process ◽  
Internal Strain ◽  
Extraction Technique ◽  
Alternative Technique ◽  
Steam Extraction ◽  
Historical Importance ◽  
Rational Management

The bee wax has great historical importance and has been present since the evolution of civilizations. Currently, besides several uses of the wax, its recovery is indispensable for the rational management of swarms by beekeepers. The wax can be recovered from the combs using different techniques, however the conditions of the pre-extraction combs, such as their size, can influence the wax yield. Thus, studies must still be carried out to standardize the techniques and processes for extracting the wax from the combs, in order to improve the wax yield. This study aimed to evaluate the recovery of Apis mellifera wax according to the size of the comb using an alternative extraction technique. First, the influence of the comb size on wax recovery was evaluated. We used brown color combs, which were broken down into four sizes, each size representing a treatment, namely: Treatment I - 25 cm2; Treatment II - 16 cm2; Treatment III - 9 cm2 and Treatment IV - 4 cm2. Combs were submitted to the "internal strain" technique for 30 minutes of extraction, after boiling the water. The wax recovery was superior in treatment III (P <0.05). Wax recovery from treatment IV was similar to treatment II, which, in turn, showed similar recovery to treatment I (P <0.05). Besides, the wax recovery using 9 cm2 combs was evaluated by the commercial technique of "steam extraction" and the alternative technique of "internal strain", for a period of 30 minutes. The “internal strain” technique showed greater wax recovery than the “steam extraction” technique (P <0.01). The use of alternative wax recovery together with 9 cm2 combs size may optimize the wax extraction process, in terms that it decreases the time of exposure of the wax to heat, and thus positively affect the quality of the final product.

STUDYING THE KINETIC CHARACTERISTICS OF THE EXTRACTION OF ANTHOCYANINS FROM THE SQUEEZE OF KRASNOSTOP ZOLOTOVSKY

2020 ◽  
Author(s):  
M.A. Egyan ◽  
Keyword(s):  
Reaction Rate ◽  
Sugar Content ◽  
Extraction Process ◽  
Efficiency Coefficient ◽  
Kinetic Characteristics ◽  
Reaction Rate Constants ◽  
Solids Content ◽  
Kinetics Of ◽  
Process Speed

The article shows studies characterizing the quality of the squeeze: the mechanical composition of the squeeze is determined, the structural moisture of each component is determined, the sugar content in the formed process of sedimentation of the juice and its acidity are determined refractometrically. The kinetics of anthocyanins extraction was determined in two ways, the solids content in the extract was calculated, and the reaction rate constants of the extraction process and the efficiency coefficient of ultrasonic amplification of the extraction process speed were calculated.

Urban stormwater: the analysis of the failure of the alternative techniques and the management of quality

1995 ◽  
Vol 32 (1) ◽  
pp. 33-39
Author(s):  
E. Alfakih ◽  
S. Barraud ◽  
Y. Azzout ◽  
B. Chocat
Keyword(s):  
Stormwater Management ◽  
Difficult Problem ◽  
Management Approach ◽  
Alternative Technique ◽  
Urban Stormwater ◽  
Urban Stormwater Management ◽  
Porous Pavement ◽  
Alternative Techniques ◽  
Design Construction

The implementation of alternative techniques in urban stormwater management is a difficult problem in terms of choice, design, construction, and operating. We applied a quality management approach to try and have a better understanding of these techniques. The quality of an alternative technique in urban stormwater management is defined; the factors that lead to failures were identified and analysed. In order to reduce these factors, tools were developed, and measures that allow the achievement of the necessary standard of quality are suggested. In this article, all the illustrations refer to the porous pavement technique.

scholarly journals A Personalized Machine-Learning-Enabled Method for Efficient Research in Ethnopharmacology. The Case of the Southern Balkans and the Coastal Zone of Asia Minor

2021 ◽  
Vol 11 (13) ◽  
pp. 5826
Author(s):  
Evangelos Axiotis ◽  
Andreas Kontogiannis ◽  
Eleftherios Kalpoutzakis ◽  
George Giannakopoulos
Keyword(s):  
Machine Learning ◽  
Coastal Zone ◽  
Extraction Process ◽  
Asia Minor ◽  
Efficiency And Effectiveness ◽  
Effectiveness And Efficiency ◽  
Intelligent Tools ◽  
Southern Balkans

Ethnopharmacology experts face several challenges when identifying and retrieving documents and resources related to their scientific focus. The volume of sources that need to be monitored, the variety of formats utilized, and the different quality of language use across sources present some of what we call “big data” challenges in the analysis of this data. This study aims to understand if and how experts can be supported effectively through intelligent tools in the task of ethnopharmacological literature research. To this end, we utilize a real case study of ethnopharmacology research aimed at the southern Balkans and the coastal zone of Asia Minor. Thus, we propose a methodology for more efficient research in ethnopharmacology. Our work follows an “expert–apprentice” paradigm in an automatic URL extraction process, through crawling, where the apprentice is a machine learning (ML) algorithm, utilizing a combination of active learning (AL) and reinforcement learning (RL), and the expert is the human researcher. ML-powered research improved the effectiveness and efficiency of the domain expert by 3.1 and 5.14 times, respectively, fetching a total number of 420 relevant ethnopharmacological documents in only 7 h versus an estimated 36 h of human-expert effort. Therefore, utilizing artificial intelligence (AI) tools to support the researcher can boost the efficiency and effectiveness of the identification and retrieval of appropriate documents.

scholarly journals Klasifikasi Jenis dan Tingkat Kesegaran Daging Berdasarkan Warna, Tekstur dan Invariant Moment Menggunakan Klasifikasi LDA

2021 ◽  
Vol 5 (1) ◽  
pp. 9-19
Author(s):  
Siti Faria Astari ◽  
I Gede Pasek Suta Wijaya ◽  
Ida Bagus Ketut Widiartha
Keyword(s):  
Statistical Approach ◽  
Extraction Process ◽  
Shape Features ◽  
Fresh Meat ◽  
Invariant Moment ◽  
Linear Discriminant ◽  
Distribution Process ◽  
Long Time ◽  
Meat Goat

Distribution process that takes a long time along with improper treatment, can cause meat become not fresh and decrease the quality of the meat. Therefore, unscrupulous meat sellers cheating on the non-fresh meat by mixing the non-fresh meat with the fresh one. A system that can classify the type and freshness level of meat automatically is needed. In this research, that system was developed based on texture, color and shape features using Linear Discriminant Analysis (LDA) classification. The methods used in the feature extraction process are statistical approach, GLCM and the HU's invariant moment. The total of data used in this research was 960 images of 3 different meat types which are chicken meat, goat meat, and beef. The highest accuracy obtained from the testing process was 90% on the combination features of HSI and invariant moment for the meat type in refrigerator

scholarly journals The physical, insemination, and reproductive quality of honey bee queens (Apis mellifera L.)

Apidologie ◽  
2011 ◽  
Vol 42 (1) ◽  
pp. 1-13 ◽  
Author(s):  
Deborah A. Delaney ◽  
Jennifer J. Keller ◽  
Joel R. Caren ◽  
David R. Tarpy
Keyword(s):  
Apis Mellifera ◽  
Honey Bee ◽  
Honey Bee Queens

Paleobiological Implications of the Isotopic Signatures (13C,15N) of Fossil Mammal Collagen in Scladina Cave (Sclayn, Belgium)

1997 ◽  
Vol 48 (3) ◽  
pp. 370-380 ◽  
Author(s):  
Hervé Bocherens ◽  
Daniel Billiou ◽  
Marylène Patou-Mathis ◽  
Dominique Bonjean ◽  
Marcel Otte ◽  
...  
Keyword(s):  
Trophic Position ◽  
Brown Bear ◽  
Extraction Process ◽  
Vegetarian Diet ◽  
Isotopic Abundance ◽  
Preliminary Screening ◽  
Isotopic Signatures ◽  
Extant Species ◽  
Isotopic Abundances

An isotopic investigation of upper Pleistocene mammal bones and teeth from Scladina cave (Sclayn, Belgium) demonstrated the very good quality of collagen preservation. A preliminary screening of the samples used the amount of nitrogen in whole bone and dentine in order to estimate the preserved amount of collagen before starting the extraction process. The isotopic abundances of fossil specimens from still-extant species are consistent with their trophic position. Moreover, the15N isotopic abundance is higher in dentine than in bone in bears and hyenas, a phenomenon already observed in modern specimens. These results demonstrate that the isotopic compositions of samples from Scladina cave can be interpreted in ecological terms. Mammoths exhibit a high15N isotopic abundance relative to other herbivores, as was the case in Siberian and Alaskan samples. These results suggest distinctive dietary adaptations in herbivores living in the mammoth steppe. Cave bears are clearly isotopically different from coeval brown bears, suggesting an ecological separation between species, with a pure vegetarian diet for cave bear and an omnivorous diet for brown bear.

scholarly journals A Novel Green Extraction Technique for Extracting Flavonoids from Folium nelumbinis by Changing Osmosis Pressure

Materials ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4192
Author(s):  
Hai-Yan Fang ◽  
Ying-Qin Wei ◽  
Meng-Li Zhang ◽  
Wei Liu
Keyword(s):  
Extraction Efficiency ◽  
Chemical Potential ◽  
Volume Fraction ◽  
Antioxidant Activities ◽  
Morphological Changes ◽  
Extraction Process ◽  
Extraction Technique ◽  
Salting Out ◽  
Digital Microscope ◽  
Main Factor

A new green and sustainable extraction technique, namely osmosis extraction (OE), was developed for efficient extracting flavonoids from Folium nelumbinis by changing the osmotic pressure. The antioxidant activities of the extracted flavonoids were also evaluated. Ethanol and ammonium sulfate were selected for the OE system because they are environmentally friendly. The maximum flavonoids concentration in the top phase was obtained with an ethanol volume fraction of 42.0% and the salt mass of 1.9 g. The kinetic behavior of the extraction process showed that OE had higher efficiencies especially coupled with ultrasonication due to the accompanying and serious morphological changes of Folium nelumbinis cells observed by digital microscope and nano-computed tomography (nano-CT). Results of morphological and anatomical features showed that the higher intracellular chemical potential made the cell expand and even led to bursting. The results also showed that the extraction efficiency of flavonoids with high antioxidant activities was higher than that of the traditional method. The interface effect enhanced the extraction during the salting-out extraction and osmosis was the main factor that improved the extraction efficiency.

scholarly journals Risk Disclosure Patterns among Jordanian Companies: An Exploratory Study during Covid-19 Pandemic

2020 ◽  
Vol 9 (3) ◽  
pp. 69
Author(s):  
Fawzi Ata Al-Sawalqa
Keyword(s):  
Board Of Directors ◽  
Exploratory Study ◽  
Critical Time ◽  
Extraction Process ◽  
Risk Disclosure ◽  
Entire Study ◽  
Operational Activities ◽  
Risk Disclosures ◽  
Disclosure Patterns

This current exploratory study comes at a critical time to determine the risk disclosure pattern of Jordanian companies during Covid-19 pandemic in response to the request of JSC for Jordanian listed companies to prepare and send disclosure reports include the effect of Covid-19 pandemic on their activities in terms of material events, operational activities and the decisions of board of directors during the period of disclosure suspension extending from March 18, 2020 to May 5, 2020. Based on all the non-financial companies that listed in the first market, the results of the study indicated that the entire study sample (100%) did send the disclosure reports to JSC. In terms of the quality of disclosed risks, extraction process resulted in finding 20 risk items distributed over 5 categories. The results show that the average disclosure level is 65.6%, with the operational category ranked first and followed by investor relation category, financial category, strategic category and finally the market category. Results show that those sectors that were suspended completely during Covid-19 pandemic provided risk disclosures in all categories and vice versa. In addition to the several implications, the study offers many avenues for future study based on the risk disclosure model of the current study.

Sign in / Sign up

Export Citation Format

Share Document