Flavonols composition of Ribes nigrum L. juices and their impact on spasmolytic activity

2021 ◽  
pp. 1-16
Author(s):  
Bojana Miladinović ◽  
Suzana Branković ◽  
Slavoljub Živanović ◽  
Milica Kostić ◽  
Katarina Šavikin ◽  
...  
Keyword(s):  
Antioxidative Activity ◽  
Neuroprotective Agents ◽  
Black Currant ◽  
Spasmolytic Activity ◽  
Qualitative And Quantitative ◽  
Beneficial Effects ◽  
Smooth Muscle Contractions ◽  
The Impact ◽  
Β Carotene

BACKGROUND: Black currants are berries that attract attention due to the beneficial effects they possess. They are proven to be good antioxidants, anticancerogenic, cardio- and neuroprotective agents. OBJECTIVE: The main objective of this research was to evaluate the differences in the flavonols composition, antioxidant and spasmolytic activity of juices obtained from four different black currant cultivars – Triton, Tenah, Ben Sarek, and Ometa, grown over a 4-year long period on the territory of Serbia. METHODS: The qualitative and quantitative determination of black currants juices flavonols was performed using the HPLC. The antioxidative activity was carried out in DPPH and β-carotene systems. The study examined the impact of the main black currants flavonols and black currants juices on the spontaneous, KCl, and acetylcholine-induced ileum smooth muscle contractions. RESULTS: The dominant flavonol in juices of the four different black currant cultivars was myricetin, with its highest content obtained from the 2015 Triton juice (820.1±34.7 μg g–1). Quercetin was the second in abundance and the lowest yields were observed in kaempferol. CONCLUSION: The investigated black currant cultivars were proven to be good sources of flavonols and potential antioxidants with the significant spasmolytic activity that could be successfully used in treating gastrointestinal disorders.

scholarly journals Determination of Chlorophyll and Carotenoids Present in the Seeds of the Plant Family Apiaceae and the Impact on Seed Quality

2018 ◽  
Vol 66 (4) ◽  
pp. 859-869 ◽  
Author(s):  
Marie Grulichová ◽  
Peter Mendel ◽  
Václav Trojan ◽  
Tomáš Vyhnánek
Keyword(s):  
Seed Quality ◽  
Seedling Emergence ◽  
Quality Parameters ◽  
Standard Laboratory ◽  
Plant Family ◽  
Pigment Contents ◽  
The Individual ◽  
The Impact ◽  
Β Carotene

In this study, we assessed the content of chlorophyllaandb, β-carotene and lutein in seeds of carrot, celery, dill, parsley and parsnip commercial varieties by spectrophotometric method. It was determined that the content of chlorophyllawas higher than chlorophyllband both differed significantly between plant species and varieties. The highest amounts of chlorophylla, chlorophyllb, β-carotene and lutein were detected in parsley “Olomoucka dlouha”. The lowest amounts of chlorophylla, chlorophyllb, β-carotene and no lutein were detected in celery “Nuget”, however, very low amount of lutein was detected in the parsley cultivars “Atika” and “Orbis”. The content of β-carotene was higher than that of lutein in most varieties. The individual pigment contents were compared to seed quality parameters such as standard laboratory germination and seedling emergence. Negative correlation between energy of germination and pigments and positive correlation between seedling emergence and pigments in the parsnip and parsley varieties was observed. Determination the content of pigments and correlations observed the possibility to use spectrophotometry to evaluate the pigments present in the seeds as an indicator of seed quality.

scholarly journals Addressing the Challenge of Guiding Our Students on how to Deal with Fake News

10.28945/4341 ◽  
2019 ◽  
Keyword(s):  
Communication Theory ◽  
Influential Factors ◽  
Future Research ◽  
Fake News ◽  
Methodology Development ◽  
Qualitative And Quantitative ◽  
Gender Culture ◽  
The Face ◽  
The Impact

Aim/Purpose: In the face of the onslaught of fake news, we aim to address the challenge of how we, as academics, can guide our students to be able to critically assess and evaluate information. Background Fake news has assumed alarming proportions and is a challenge to academia, organizations, causes and governments. How can our students be prepared to deal with this challenge? Methodology: Development of guidelines based on a literature review of multiple literatures. Contribution A set of guidelines is presented, which can be used by academics and students in their determination of which is valid and truthful information and which is fake. Findings: A set of guidelines in which the core aspects of information and fake news communication as discussed. They are: fake news; social media; and the receiver’s motivation; expectations; attitudes, biases, predispositions and brand loyalty; media engagement; and reference groups. Recommendations for Practitioners: The guidelines will help students deal with the phenomenon of fake news. Recommendations for Researchers: This research shows how communication theory can be used to address fake news. It also demonstrates a multi-disciplinary approach. Impact on Society: Greater caution and discernment regarding information will be instilled into the minds of our students as future leaders of our economies and society. Future Research: Qualitative and quantitative expansion and testing of the validity of the find-ings; further testing of the impact of age, gender, culture and discipline studied on the influential factors proposed.

MODELING THE IMPACT OF NATURAL AND SECURITY HAZARDS IN AN LNG PROCESSING FACILITITY

2015 ◽  
Vol 75 (6) ◽  
Author(s):  
Ali Al-shanini ◽  
Arshad Ahmad ◽  
Faisal Khan ◽  
Mimi Hassim ◽  
Ali Al-shatri
Keyword(s):  
Chemical Process ◽  
Accident Prevention ◽  
Process Industries ◽  
Fault Trees ◽  
Qualitative And Quantitative ◽  
The Impact ◽  
Liquefaction Plant ◽  
Failure Probabilities

Development of accident models based on cause and effect relationships facilitates the formulation of accident prevention and mitigation plans in the Chemical Process Industries (CPIs). In this paper, failures of accident prevention barriers triggered by man-made and natural hazards are causally modeled using Fault Trees (FTs) models. Additionally, updated technique of FTs basic and top events failure probabilities was applied using Hierarchy Bayesian Approach (HBA) based on basic events precursor data. This updated methodology overcomes the uncertainty limitation in the determination of FTs reliability data, as well as converge them into their accurate values. Moreover, it provides valuable information supporting risk based decision. The methodology was applied to LNG pipeline and liquefaction plant Dispersion Prevention Barrier (DPB). The result shows the capability of the methodology to model natural and security hazards (NE&ISHs) in both qualitative and quantitative manners, as well as, to update FT events failure probabilities through the use of the precursor data to the HBA. Outcomes demonstrate that the average posterior failure probability of DPB of that particular case study increased from 0.0613 to 0.204232 which represents a 3.33 times increment compared with the prior. 

Vitamin A Value of Plant Food Provitamin A - Evaluated by the Stable Isotope Technologies

2014 ◽  
Vol 84 (Supplement 1) ◽  
pp. 25-29 ◽  
Author(s):  
Guangwen Tang
Keyword(s):  
Stable Isotope ◽  
Vitamin A ◽  
Provitamin A ◽  
Animal Origin ◽  
Plant Food ◽  
Plant Foods ◽  
A Value ◽  
Provitamin A Carotenoids ◽  
Β Carotene

Humans need vitamin A and obtain essential vitamin A by conversion of plant foods rich in provitamin A and/or absorption of preformed vitamin A from foods of animal origin. The determination of the vitamin A value of plant foods rich in provitamin A is important but has challenges. The aim of this paper is to review the progress over last 80 years following the discovery on the conversion of β-carotene to vitamin A and the various techniques including stable isotope technologies that have been developed to determine vitamin A values of plant provitamin A (mainly β-carotene). These include applications from using radioactive β-carotene and vitamin A, depletion-repletion with vitamin A and β-carotene, and measuring postprandial chylomicron fractions after feeding a β-carotene rich diet, to using stable isotopes as tracers to follow the absorption and conversion of plant food provitamin A carotenoids (mainly β-carotene) in humans. These approaches have greatly promoted our understanding of the absorption and conversion of β-carotene to vitamin A. Stable isotope labeled plant foods are useful for determining the overall bioavailability of provitamin A carotenoids from specific foods. Locally obtained plant foods can provide vitamin A and prevent deficiency of vitamin A, a remaining worldwide concern.

Comparison of standardised lymphoscintigraphic function test and high resolution sonography of the lymphoedema of legs

Phlebologie ◽  
2008 ◽  
Vol 37 (05) ◽  
pp. 247-252 ◽  
Author(s):  
V. S. Brauer ◽  
W. J. Brauer
Keyword(s):  
Lower Leg ◽  
Clinical Findings ◽  
Lower Limbs ◽  
Fatty Tissue ◽  
Qualitative And Quantitative ◽  
Function Test ◽  
Unreliable Method ◽  
Negative Conclusion ◽  
Fine Disperse

SummaryPurpose: Comparison of qualitative and quantitative sonography with the lymphoscintigraphic function test and clinical findings in legs. Patients, methods: In 33 patients a lymphoscintigraphic function test of legs combined with measurement of lymph node uptake was performed and subsequently compared with sonography. Sonographic criteria were: Thickness of cutis, thickness of subcutanean fatty tissue and presence of liquid structures or fine disperse tissue structure of lower limbs, foots and toes. Results: In 51 legs uptake values lie in the pathologic area, in four legs in the grey area and in ten legs in the normal area. The cutis thickness in the lower leg shows no significant correlation with the uptake. The determination of the thickness of the subcutanean fatty tissue of the lower leg and of the cutis thickness of the feet turned out to be an unreliable method. In 47% of the medial lower legs and in 57% of the lateral lower legs with clinical lymphoedema sonography is falsely negative. Conclusion: Early lymphoedema is only detectable with the lymphoscintigraphic function test. In the case of clinical lymphoedema clinical examination is more reliable than sonography.

Assessment of sensitivity of the efficiency of regional tax spending towards investment attractiveness of the types of economic activity carried out by the residents of advanced development territory

2020 ◽  
pp. 98-110
Author(s):  
Evgeniya Mikhailovna Popova ◽  
Guzel Mukhtarovna Guseinova ◽  
Sergei Borisovich Milov
Keyword(s):  
Economic Activity ◽  
Socioeconomic Development ◽  
Federal District ◽  
Tax Incentives ◽  
Capital Investments ◽  
The Subject ◽  
Investment Process ◽  
The Impact ◽  
Advanced Development

The deficit of subnational budgets and deceleration capital investments in multiple Russian regions increase the relevance of research aimed at improvement of tax incentivizing practice of the regional investment process. The studies focused on determination of the impact of socioeconomic and institutional factors upon the efficiency of investment tax expenses obtained wide circulation within the foreign scientific literature. The subject of this article is the assessment of sensitivity of the efficiency of regional tax expanses towards investment attractiveness of the types of economic activity carried out by the residents of territories of advanced socioeconomic development, created in the subjects of Far Easter Federal District. The scientific novelty and practical values of this research consists in substantiation of the reasonableness of assessment of investment attractiveness of the types of economic activity that are stimulated by tax incentives. Methodology for assessing investment attractiveness is proposed and tested. The conclusion is made that in case of low investment attractiveness of the type of economic activity, which was planned to support by tax incentives, it is required to conduct and additional analysis to avoid unjustified tax expanses.

Method development for the determination of textural properties of sugar beet roots

2019 ◽  
pp. 392-400 ◽  
Author(s):  
Gunnar Kleuker ◽  
Christa M. Hoffmann
Keyword(s):  
Sugar Beet ◽  
Compression Test ◽  
Storage Period ◽  
Textural Properties ◽  
Small Sample ◽  
Root Tip ◽  
Flexural Test ◽  
Sample Distribution ◽  
The Impact

The harvest of sugar beet leads to root tip breakage and surface damage through mechanical impacts, which increase storage losses. For the determination of textural properties of sugar beet roots with a texture analyzer a reliable method description is missing. This study aimed to evaluate the impact of washing, soil tare, storage period from washing until measurement, sample distribution and number of roots on puncture and compression measurements. For this purpose, in 2017 comprehensive tests were conducted with sugar beet roots grown in a greenhouse. In a second step these tests were carried out with different Beta varieties from a field trial, and in addition, a flexural test was included. Results show that the storage period after washing and the sample distribution had an influence on the puncture and compression strength. It is suggested to wash the roots by hand before the measurement and to determine the strength no later than 48 h after washing. For reliable and comparable results a radial distribution of measurement points around the widest circumference of the root is recommended for the puncture test. The sample position of the compression test had an influence on the compressive strength and therefore, needs to be clearly defined. For the puncture and the compression test it was possible to achieve stable results with a small sample size, but with increasing heterogeneity of the plant stand a higher number of roots is required. The flexural test showed a high variability and is, therefore, not recommended for the analysis of sugar beet textural properties.

HBOT Application at Cases of Gingival Inflammation

2019 ◽  
Author(s):  
Ilma Robo
Keyword(s):  
Root Resorption ◽  
Periodontal Diseases ◽  
Therapeutic Effects ◽  
Clinical Effects ◽  
Gingival Inflammation ◽  
Beneficial Effects ◽  
New Therapeutic Approaches ◽  
Short Period ◽  
Mechanical Therapy ◽  
The Impact

The treatment of periodontal diseases, mainly of their origin, with the most common clinical manifestation in form of gingival inflammation, is manifold and powerful, including: mechanical therapy, antibiotic, antiseptic and various approaches to treatment, which are recommended to be used within a short period of time. New therapeutic approaches have been proven as alternative treatment to conventional therapy, or in combination with conventional therapies, to reduce the number of periodontopathic pathogens in gingival sulcus. HBOT has a detrimental effect on periodontal microorganisms, as well as beneficial effects on the healing of periodontal tissue, increasing oxygen pressure in gingival pockets. Our study is aimed at reviewing the current published literature on hyperbaric oxygen therapy and focuses on role of HBOT as a therapeutic measure for the individual with periodontal disease in general and for the impact on the recovery of gingival inflammation. HBOT and periodontal treatment together, reduce up to 99% of the gram-negative anaerobic load of subgingival flora. HBOT, significantly reduces subgingival anaerobic flora. Clinical effects in 2-year follow-up of treated patients are sensitive. Reduction of gingival hemorrhage indexes, depth of peritoneum, plaque index, occurs in cases of combination of HBOT and detraction. Reduced load persists up to 2 months after therapy. The significant increase in connective tissue removal starts at the end of 2nd week, to achieve the maximum in week 3-6 of application. HBOT used for re-implantation, stimulates the healing of periodontal membrane, pulp, prevents root resorption, healing of periodontal lining tissues. HBOT, significantly reduces the hemorrhage index with 1.2 value difference, 0.7mm probe depth, reduces gingival fluid by 2. HGH exposure is increased by gingival blood flow, with a difference of 2 in measured value. The therapeutic effects of HBOT in the value of the evaluation index can be saved up to 1-year post treatment.

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