Journal articles: 'Activity and content'

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Bal, Celal. "Antioxidant Activity and Element Content of Suillus collinitus." Turkish Journal of Agriculture - Food Science and Technology 9, no. 2 (February 23, 2021): 352–55. http://dx.doi.org/10.24925/turjaf.v9i2.352-355.4001.

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Mushrooms used as food have medicinal importance due to their antioxidant compounds. In this context, it is very important to determine the biological potential of fungi and to reveal these medicinal properties. In this study, it was aimed to determine the element contents, total antioxidant status, total oxidant status, oxidative stress index of Suillus collinitus (Fr.) Kuntze mushroom. In this context, the mushroom samples were extracted with ethanol in the Soxhlet extractor. Element contents were determined using atomic absorption spectrometry. Total antioxidant (TAS) and total oxidant (TOS) levels and oxidative stress index (OSI) were determined using Rel Assay commercial kits. As a result of the study, it was determined that the TAS value of S. collinitus was 2.467 ± 0.145 mmol/L, TOS value was 17.845 ± 0.273 µmol/L and OSI value was 0.677 ± 0.030. In addition, the Fe content (350.72 ± 10.23), Cu content (68.11 ± 2.51), Pb content (11.58 ± 2.43), Zn content (10.46 ± 1.28) and Ni content (1.47 ± 0.21 mg.kg-1) of S. collinitus measured. As a result, S. collinitus mushroom is thought to be a natural source of antioxidants. It has also been observed that the element contents are at normal levels.

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Jadko, S. I. "Histone deacetylase activity and reactive oxygen species content." Ukrainian Biochemical Journal 87, no. 3 (June 27, 2015): 57–62. http://dx.doi.org/10.15407/ubj87.03.057.

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Drain, Chris. "Cognition, activity, and content." Epistemology & Philosophy of Science 55, no. 3 (2018): 106–21. http://dx.doi.org/10.5840/eps201855352.

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Nora, Adri, Anjas Wilapangga, and Titta Novianti. "Antioxidant Activity, Antibacterial Activity, Water Content, and Ash Content In Baduy Honey." Bioscience 2, no. 2 (October 30, 2018): 38. http://dx.doi.org/10.24036/0201822101249-0-00.

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Lachman, J., M. Šulc, J. Sus, and O. Pavlíková. "Polyphenol content and antiradical activity in different apple varieties." Horticultural Science 33, No. 3 (November 23, 2011): 95–102. http://dx.doi.org/10.17221/3745-hortsci.

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Polyphenols are important antioxidant constituents of apples and they contribute positively to human health because they possess an antiradical activity. Fifteen apple varieties were analysed for their total polyphenol content (TP) by two methods – by Folin-Ciocalteau reagent (FC) and by EBC method with carboxylmethylcellulose/sodium ethylendiamintetraacetate (CMC/EDTA) and their antiradical activity (ARA) by DPPH method using stable free radical 1,1-diphenyl-2-picrylhydrazyl (DPPH·). TP and ARA were determined in freshly expressed apple juice and apples and obtained results were statistically evaluated. The differences between varieties were significant. The correlation between TP content determined by FC method determining all free aromatic hydroxyls and EBC method determining mainly ortho-aromatic hydroxyls was found with r = 0.73. The highest differences among analysed varieties were found for ARA values in both, juice and apples and for TP content determined by FC in apples. High polyphenol content was found in Jonagold, Jonalord, Melodie and Melrose varieties both, in apples and juices; on the contrary low TP contents were estimated in Gloster and Rosana varieties. The highest ARA levels were found inRajka,Bohemia andMelrose varieties, compared to low ARA levels found in apple fruits of &Scaron;ampion and Topaz varieties.  

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Bakaev, Shodijon, Shukhrat Ramazonov, Jakhongir Batirov, Nigora Ibatova, and Sherali Avezov. "Content of Innovation and Innovative Activity of the Teacher." International Journal of Psychosocial Rehabilitation 24, Special Issue 1 (February 28, 2020): 585–90. http://dx.doi.org/10.37200/ijpr/v24sp1/pr201195.

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Bilge Ertekin, Filiz, Korkmaz Nazli, Budak Nilgun H, Seydim Atif C, and Seydim Zeynep B Guzel. "Antioxidant activity and phenolic acid content of selected vegetable broths." Czech Journal of Food Sciences 35, No. 6 (December 20, 2017): 469–75. http://dx.doi.org/10.17221/458/2016-cjfs.

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The antioxidant activity and content of phenolic substances in vegetable broths were determined. Green beans, beetroots, courgettes, onions, parsley, carrots, cabbages, celery, broccoli, spinach, cauliflowers, and tomatoes were subjected to boiling. Fresh vegetables and vegetable broths were analysed for ascorbic acid content, total phenolic content, ORAC and TEAC values. Phenolic acids were quantified using HPLC. The ascorbic acid content of vegetables ranged from 5–109 mg/100 ml, while no ascorbic acids could be detected in vegetable broths. Total phenolic content was between 17–1729 mg GAE/l for all samples. ORAC and TEAC values of vegetable broths were between 0–3 µmol TE/ml and 0–2 µmol TE/ml, respectively. Gallic, chlorogenic, caffeic, p-coumaric, and ferulic acid were detected in both fresh vegetables and vegetable broths. The highest phenolic acid content was observed in water in which beetroots were boiled. It was found that the vegetable broths of beetroots, celery stalks, cabbages, parsley and broccoli harboured remarkable antioxidant activity.

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Voronov, A. F. "The Content of Economic Activity." Herald of Civil Procedure 7, no. 6 (2017): 13–33. http://dx.doi.org/10.24031/2226-0781-2017-7-6-13-33.

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Klenova, Milena A. "Protest Activity and its Psychological Content in the Context of Young People’s Socio-Political Activity." Izvestiya of Saratov University. New Series. Series: Educational Acmeology. Developmental Psychology 8, no. 4 (2019): 362–67. http://dx.doi.org/10.18500/2304-9790-2019-8-4-362-367.

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MacKay, Kelly, Danielle Barbe, Christine M. Van Winkle, and Elizabeth Halpenny. "Social media activity in a festival context: temporal and content analysis." International Journal of Contemporary Hospitality Management 29, no. 2 (February 13, 2017): 669–89. http://dx.doi.org/10.1108/ijchm-10-2015-0618.

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Purpose This study explores the multi-phasic experience of festivals to understand the nature, purpose and degree of social media (SM) use before, during and after festival occurrence and how this may inform better engagement of attendees. Design/methodology/approach A census of tweets and posts from four festivals’ Twitter handles and Facebook accounts were coded and analyzed across three time points: one week prior, during and one week after the festival. They were coded on nature (e.g. conversational, promotional, informational), purpose (e.g. information-seeking, friendship/relationship) and presence of links, photos, etc. Tests for platform influences on usage were conducted. Findings In total, 1,169 tweets and 483 posts were captured. Two-thirds of SM activity occurred during the festivals, one-third pre-festival and minimal activity post festival. Temporal analyses found that while the purpose and nature of the message content varied across festival time points, this was often dependent on SM platform. Research limitations/implications Festivals are not taking advantage of the multi-phase experience model and the utility of SM to maintain contact and encourage visitors to continue processing their experience after the festival. This lost opportunity has implications for re-patronizing behaviour and sponsor relationships. Originality value Leung et al. (2013a) call for sector specific research to elucidate SM use in tourism. Festivals provide a unique environment of co-created experience. Findings suggest differential usage of SM across festival time frames and platforms that can be used to guide festival organizations’ SM communication to better engage its patrons.

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Syrchin, S. O., О. M. Yurieva, L. T. Nakonechna, F. V. Muchnyk, and I. M. Kurchenko. "Total Phenolic and Flavonoid Content, Antioxidant Activity of Talaromyces funiculosus Strains." Mikrobiolohichnyi Zhurnal 82, no. 5 (October 17, 2020): 48–57. http://dx.doi.org/10.15407/microbiolj82.05.048.

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Microscopic fungi synthesize a wide range of phenolic compounds that play an important role in cell wall formation, as well as perform signaling and protective functions. One of the important functions of phenolic compounds, primarily polyphenols, is antioxidant activity. The most active polyphenols are flavonoids, their synthesis in microscopic fungi has not been studied enough. The aim of the study was to determine the total phenols and flavonoids content and antioxidant activity of Talaromyces funiculosus strains isolated from different econiches. Methods. 20 strains of the microscopic fungus T. funiculosus – 10 endophytes and 10 saprotrophs were used in the experiments. Cultivation of filamentous fungi was performed under submerged conditions with shaking at 210–230 rpm in Erlenmeyer flasks containing 200 ml of Czapek liquid medium at a temperature 26±2°C for 6 days. The biomass of the strains was filtered, dried at 70°C and extracted with 95% methanol (1:50 w/v). The total phenols content was determined using Folin-Ciocalteu reagent by the method of Arora, Chandra (2010) with some modifications and expressed as mg of gallic acid equivalents (GAE) per g of dry weight mycelium. Flavonoids in each extract were determined spectrophotometrically with AlCl3 and expressed as mg of quercetin equivalents (QE) per g of dry weight mycelium. Antioxidant activity of methanolic extracts was measured as radical scavenging activity by the percentage inhibition of the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical. Results. The total phenolic content of methanolic extracts of T. funiculosus strains ranged from 0.12±0.007 to 1.97±0.150 mg GAE/g. The highest level of phenolic compounds was found for saprotroph UCM F-16790 (1.97±0.150) and endophyte UCM F-16795 (1.71±0.137 mg GAE/g). The flavonoid content in methanolic extracts of the studied strains varied in the range of 0.02±0.001–0.39±0.041 mg QE/g. All studied strains of T. funiculosus showed antioxidant activity against DPPH radical, which was 12.19±2.34–60.37±7.24% inhibition. Statistical analysis revealed a strong positive correlation between the total phenols and flavonoids content (Pearson’s correlation coefficient r=0.92); between antioxidant activity, phenols (r=0.82) and flavonoids (r=0.81) content in methanol extracts of T. funiculosus strains. The total content of phenols and flavonoids and antioxidant activity did not depend on the trophic group of the studied strains. The moderate correlation between flavonoids content and antioxidant activity of methanolic extracts of endophytic T. funiculosus strains (r=0.46) may be related to their ability to synthesize a wider range of polyphenolic compounds with antioxidant activity. Conclusions. The studied T. funiculosus strains have the ability to synthesize phenolic compounds and flavonoids in different concentrations. Correlation analysis revealed strong correlations between total phenolic and flavonoid contents and antioxidant activity. The reason for phenomenon of moderate correlation (r=0.46) between flavonoid content and antioxidant activity in endophytic strains may be the synthesis of other compounds by individual strains. The determination of individual components synthesized by the most active strains is of scientific interest for further study. T. funiculosus UСM F-16795 and UСM F-16790 strains had a quite high level of phenols and flavonoids. Obtained data may be promising for the search for phenolic compounds with antioxidant properties to increase plant resistance to negative impacts of environmental stress factors.

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Fernández-León, M. A., M. Lozano, D. González, M. C. Ayuso, and M. F. Fernández-León. "Bioactive compounds content and total antioxidant activity of two savoy cabbages." Czech Journal of Food Sciences 32, No. 6 (November 27, 2014): 549–54. http://dx.doi.org/10.17221/76/2014-cjfs.

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The bioactive compounds, as well as the in vitro antioxidant activity of two Savoy cabbage cultivars, Dama and Leticia, grown in west of Spain under similar conditions were identified, quantified and compared. We found that cv. Dama presented in general betters results when compared with cv. Leticia. Cv. Dama presented higher concentrations of chlorophyll a (2.26 mg/100 g fresh weight), total phenolic content (102.71 mg of chlorogenic acid equivalent/100 g fresh weight) and total intact glucosinolates (195.22 µmol of sinigrin equivalent/100 g fresh weight). Thus, cv. Dama exhibited higher values of in vitro antioxidant activity.  

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Kolodziej, Barbara, Sugier Danuta, and Luchowska Katarzyna. "Changes of antioxidant activity and active compounds content in selected teas." Foods and Raw Materials 8, no. 1 (February 26, 2020): 91–97. http://dx.doi.org/10.21603/2308-4057-2020-1-91-97.

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Our study tested 45 tea infusions classified into five groups (white, green, red, black, and other teas) for the content of total polyphenols and flavonoids, as well as antioxidant properties, by the FRAP and DPPH methods. We examined these parameters after prolongation of the brewing time from 10 to 30 min and overnight storage. The results showed that the capacity of the teas to bind free radicals was differentiated and the amount of anti-oxidant compounds depended on their nature. In terms of antioxidant activity and total polyphenol content, the tested tea types were ranked in the following order: white > green > black > red > other teas (yerba mate > rooibos). Our experiment demonstrated a positive correlation between the polyphenol content and antioxidant activity of the analyzed teas. Also, the DPPH antiradical efficiency was comparable to their ability to reduce ferric ions. The extended brewing time had a significant effect on the antioxidant activity of the infusions and the polyphenolic compounds analyzed therein. In contrast, storage of the infusions for 24 h at room temperature changed their antioxidant activity and affected the total polyphenol content.

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14

Radojčić Redovniković, I., K. Delonga, S. Mazor, V. Dragović-Uzelac, M. Carić, and J. Vorkapić-Furač. "Polyphenolic content and composition and antioxidative activity of different cocoa liquors." Czech Journal of Food Sciences 27, No. 5 (October 28, 2009): 330–37. http://dx.doi.org/10.17221/119/2008-cjfs.

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Cocoa liquor used in the confectionery industry comes from a wide range of geographical areas and may have different chemical compositions, sensory properties, and nutritional values. We found it interesting to study the polyphenolic content and composition of cocoa liquors for their potential use in industrial production. Six defatted samples originating from different countries were extracted with aqueous methanol (70%, v/v), and the polyphenolic profiles were determined using RP-HPLC method. According to our results, all samples of cocoa liquors have similar polyphenolic profiles, however, quantitatively varied. In the samples, about 13 compounds were identified by comparison of their retention times and UV spectra, and the quantified peaks were (+)-catechin, (–)-epicatechin, (–)-gallocatechin, (–)-epigallocatechin, caffeic acid derivative, caffeine, and theobromine. Also, several peaks were identified as oligomeric procyanidins. The free-radical scavenging activity was determined by the DPPH• (1,1'-dipheny-2-picrylhydrazyl) and Oxygen Radical Antioxidant Capacity (ORAC) assays. The order of antioxidant activity of the cocoa liquors studied was the same with both methods (Madagascar > Mexico > Ecuador > Venezuela > Sao Tome > Ghana samples). In addition, correlation between the antioxidant capacity and polyphenolic content was also determined, a high correlation coefficient having been obtained by both methods (R2<Isup> = 0.9868 for DPPH, and 0.9375 for ORAC).

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Pirnay, F., M. Bodeux, J. Crielaard, and P. Franchimont. "Bone Mineral Content and Physical Activity." International Journal of Sports Medicine 08, no. 05 (October 1987): 331–35. http://dx.doi.org/10.1055/s-2008-1025679.

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16

Xiang, Tao, and Shaogang Gong. "Activity based surveillance video content modelling." Pattern Recognition 41, no. 7 (July 2008): 2309–26. http://dx.doi.org/10.1016/j.patcog.2007.11.024.

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17

Afraimovich, E. L., E. I. Astafyeva, and I. V. Zhivetiev. "Solar activity and global electron content." Doklady Earth Sciences 409, no. 2 (July 2006): 921–24. http://dx.doi.org/10.1134/s1028334x06060195.

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Lucia, Gharwalová, Hutár Daniel, Masák Jan, and Kolouchová Irena. "Antioxidant activity and phenolic content of organic and conventional vine cane extracts." Czech Journal of Food Sciences 36, No. 4 (September 3, 2018): 289–95. http://dx.doi.org/10.17221/19/2018-cjfs.

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Phenolic antioxidants, such as resveratrol and polydatin, occur in grapevine as secondary metabolites responsible for the plants protection against biotic and abiotic stress. The antioxidant profile and content depends on agro-climatic conditions, which may act as stress factors. In order to determine the significance of the use of spraying pesticides on the antioxidant content in pruned canes, we examined samples of white and blue Vitis vinifera varieties from conventional and organic vineyards. Phenols from these samples were extracted by 40% ethanol. HPLC was used to determine differences in the stilbenoid composition and the DPPH assay was used to compare the antioxidant activities. While the farming approach did not alter the total polyphenolic content and antioxidant activity of the samples, the resveratrol content was higher in samples from conventional vineyards. These results could be significant for further reusing of winery waste.

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Balík, J., M. Kyseláková, N. Vrchotová, J. Tříska, M. Kumšta, J. Veverka, P. Híc, J. Totušek, and D. Lefnerová. "Relations between polyphenols content and antioxidant activity in vine grapes and leaves." Czech Journal of Food Sciences 26, Special Issue (February 10, 2009): S25—S32. http://dx.doi.org/10.17221/246/2008-cjfs.

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The occurrence and content of some polyphenols and the antioxidant activity of compounds present in grape berries, stems and leaves of Vitis vinifera L. were evaluated. Three white and three blue varieties of grapevine were investigated. The contents were determined of trans-resveratrol, trans-piceid, caftaric acid, tryptophan, catechin, epicatechin, total polyphenols, and flavanols, both in healthy material and in the samples of the plant material infested with microorganisms (Botryotinia fuckeliana Whetzel anamorph Botrytis cinerea Pers.; Uncinula necator (Schw.) Burr; Plasmopara viticola (Berk. & M.A. Curtis) Berl & De Toni). The antioxidant activity of the extracts obtained was determined by different methods: FRAP (Ferric Reducing Antioxidant Power), DPPH (2,2-diphenyl-1-picrylhydrazyl radical) and TAC-PCL (Total Antioxidant Capacity of Photochemiluminescence). The content of trans-resveratrol varied between 0.3–2.3 mg/kg and 0.7–12.1 mg/kg in non-infested and infested grape berries, respectively. The content of trans-piceid between 0.6–2.9 mg/kg and 1.5–6.3 mg/kg in non-infested and infested grape berries, respectively. The content of trans-resveratrol varied between 2.5–10.3 mg/kg and 3.7–20.9 mg/kg in healthy and in infected leaves, respectively. The content trans-piceid varied between 11.3–58.4 mg/kg and 18.5–60.9 mg/kg in the healthy and in the infected leaves, respectively. The highest content of trans-resveratrol was found in stems (16.3–276.3 mg/kg). In young lateral shoots, the highest levels of trans-piceid (12.6–99.7 mg/kg) and caftaric acid (474–2257 mg/kg) were determined. The infested grape berries showed a higher antioxidant activity, which was most closely correlated with the content of total polyphenols (correlation coefficient = 0.8336–0.9952).

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Muslimin,, Lukman, Isna Hasyim, Nurul Fatimah Yu, Fhahri Mubarak, and Risfah Yulianty. "Nutrient Content, Mineral Content and Antioxidant Activity of Muntingia calabura Linn." Pakistan Journal of Nutrition 18, no. 8 (July 15, 2019): 726–32. http://dx.doi.org/10.3923/pjn.2019.726.732.

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Šimon, T. "Aliphatic compounds, organic C and N and microbial biomass and its activity in long-term field experiment." Plant, Soil and Environment 51, No. 6 (November 19, 2011): 276–82. http://dx.doi.org/10.17221/3586-pse.

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The content of aliphatic compounds, hydrophobicity index, organic C and N content and the microbial biomass and respiration activity were analysed in soil samples originating from different plots of a long-term field experiment (variants: nil, NPK – mineral fertilization: 64.6–100 kg/ha/year, FYM – farmyard manure and FYM + NPK) from three blocks (III, IV and B) with different crop rotation. Samples were taken from 0–200 mm layer in 2002 and 2003 (spring and autumn). The plots without any fertilization had the significantly lowest aliphatic compound content compared to variants fertilized by FYM or FYM + NPK in all the evaluated blocks in both years. The variants fertilized only by mineral NPK without any organic fertilization had the slightly increased aliphatic compound content but they did not exceed significantly the control variants in most cases. The aliphatic compound contents correlated significantly with the organic C contents in 2002 and 2003, as well. The values of the hydrophobicity index showed a similar trend like the data mentioned above. Organic manure increased the soil organic nitrogen content, similarly to the carbon content. In variants fertilized by FYM and FYM + NPK the higher microbial biomass content was found comparing to unfertilized variants. Correlations between aliphatic compound content and biomass differed in spring (2002: r = 0.065, 2003: r = 0.068) and autumn (2002: r = 0.407, 2003: r = 0.529). Organically fertilized variants had increased basal respiration, in autumn 2002 the basal respiration was higher in variants fertilized by mineral NPK, too. The highest specific respiration was recorded in the unfertilised plot in block B (autumn 2002 and 2003), where low microbial biomass exhibited high activity. Increased specific respiration was found also in plots fertilized by FYM and FYM + NPK (block III and IV, autumn samplings). Positive significant correlations between microbial biomass content and basal respiration were found in 2002 (spring: r = 0.716) and 2003 (spring: r = 0.765, autumn: r = 0.671).

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Козаченко, Ганна Володимирівна, and Анжеліка Сергіївна Арзуманян. "Entrepreneurship and business activity: content of categories." Journal of Zhytomyr State Technological University. Series: Economics, Management and Administration, no. 2(88) (August 8, 2019): 28–35. http://dx.doi.org/10.26642/jen-2019-2(88)-28-35.

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Cardinal, Bradley J. "Advertising Content in Physical Activity Print Materials." American Journal of Health Promotion 16, no. 5 (May 2002): 255–58. http://dx.doi.org/10.4278/0890-1171-16.5.255.

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24

Roundtree, Aimee Kendall. "Social Health Content and Activity on Facebook." Journal of Technical Writing and Communication 47, no. 3 (April 13, 2016): 300–329. http://dx.doi.org/10.1177/0047281616641925.

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El-Naggar, A., J. G. Batsakis, M. A. Luna, H. Goepfert, and M. E. Tortoledo. "DNA content and proliferative activity of myoepitheliomas." Journal of Laryngology & Otology 103, no. 12 (December 1989): 1192–97. http://dx.doi.org/10.1017/s0022215100111326.

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AbstractThis report adds 16 myoepitheliomas of salivary glands to the 47 already recorded in the literature. It includes, for the first time, a flow cytometric analysis of their ploidy (DNA content) and proliferative capacity (S-phase fraction). Thirteen myoepitheliomas were diploid; three were aneuploid in their DNA content. A high proliferative capacity was always associated with an abnormal DNA content. Only one diploid myoepithelioma had a high S-phase fraction. Both flow-cytometric parameters are good predictors of an aggressive biological behaviour. Recurrences, however, were all the outcome of incomplete primary removal of the myoepitheliomas. Four of the twelve (33 per cent) diploid myoepitheliomas recurred and one, with high S-phase fraction, led to the death of the patient. Two of the three (67 per cent) aneuploid myoepitheliomas recurred. Extensive loco-regional invasion by one killed the patient. The other has clinical evidence of distant metastasis.

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Upadhyay, Rohit, Sneha Sehwag, and Satyendra P. Singh. "Antioxidant Activity and Polyphenol Content ofBrassica oleraceaVarieties." International Journal of Vegetable Science 22, no. 4 (November 13, 2015): 353–63. http://dx.doi.org/10.1080/19315260.2015.1048403.

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Monfared, K. Ebrahimi, Z. Rafiee, and S. M. Jafari. "Phenolic Content and Antioxidant Activity ofFalcaria vulgarisExtracts." Analytical Chemistry Letters 2, no. 3 (January 2012): 159–70. http://dx.doi.org/10.1080/22297928.2000.10648264.

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Gennadiy N. Sadicov, Petro G. Kyrienko, and Sergii O. Lobov. "Сomprehensive content of safety of vital activity." Environmental safety and natural resources 35, no. 3 (September 17, 2020): 22–29. http://dx.doi.org/10.32347/2411-4049.2020.3.22-29.

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The discipline “Safety of vital activity” emergence as a mandatory subject in schools and universities is related to increased amount and the “quality” of risks generated by scientific and technological progress and appearance of environmental changes within the modern society the technosphere. The safety of vital activity initial foundations is initiated in the family and are subsequently formed and developed in the preschool institution. From the socialization perspective of the individual, the school years are classified as primary school age, adolescence, youth, that characterize socially constructed age periods. This indicates the necessity of creative approaches with including the training programs for safety of vital activity basics. In many cases the training programs and manuals on safety of vital activity programs contains a list of emergencies and the rules of conduct within the occurrence of it, in the absence of the causal analysis, of the medium and long-term consequences of their impact, which is the fundamental in understanding of the essence, predicting and preventing such situations. An alternative to resolving such contradictions can be the introduction of “Ecology” and “Valeology” as mandatory subjects, which appeared concurrently with the “Safety of vital activity”, and then disappeared from many educational programs. This range of educational programs represents the organic unity and internalinter connection and focusing increasingly on solving practical problems with concrete results in ensuring the safety of society. The Valeology is the branch of modern preventive medicine aimed to promoting healthy lifestyles. The achievement of Valeology is the separation between health and illness of an intermediate, “third state”, when a person is not sick yet, but is no longer healthy. The above characteristics of Ecology and Valeology, which makes visible the organic unity and internal relationship with the “Safety of vital activity”. The full pedagogical content of safety and life, and activities in modern conditions of societies existence can be considered as a single set.

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BOSNIUK, Valerii, Iryna OSTOPOLETS, Nataliia SVITLYCHNA, Oksana MIROSHNICHENKO, Tetiana TSIPAN, and Serhii KUBITSKYI. "Social Content of Psychological Specialists’ Professional Activity." Postmodern Openings 12, no. 1 (March 19, 2021): 01–20. http://dx.doi.org/10.18662/po/12.1/242.

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The study defines two main research areas of ideas about a rescuer psychologist. The first area is devoted to the issue of creating social representations about the specialist psychologist and his/her relations with representatives of other professional groups. The other area is represented by works focused on the direct analysis of the profession of psychologist, specific peculiarities of professional activity and personal characteristics of the psychologist. It is indicated that the study of the representations about rescuer psychologist’ involves collective consciousness, and the main direction that allows to solve the reconstruction problem of idea about a rescuer psychologist in the system of categories and conceptual coordinates is psychosemantics. For this purpose, the method of associative experiment defines the basic constructs used by the population to evaluate the representation about a psychologist. The obtained words associations were used to develop a method of semantic scaling of the concept "Psychologist". The research has constructed the semantic profiles of perception of a civilian psychologist and a rescuer psychologist, their most pronounced characteristics were defined. With the help of multidimensional scaling the place of rescuer psychologist in psychosemantic space of psychologists of different kinds of activity was determined. Thus, the rescuer psychologist has the closest professional similarity with a military psychologist and forensic psychologist. According to the respondents' opinion, he/she (a rescuer psychologist) mainly provides psychological correction and rehabilitation, he/she has to work in uncomfortable and dangerous conditions, and also to deal with both individual and group psychological problems.

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Kotková, B., J. Balík, J. Černý, M. Kulhánek, and M. Bazalová. "Crop influence on mobile sulphur content and arylsulphatase activity in the plant rhizosphere." Plant, Soil and Environment 54, No. 3 (March 19, 2008): 100–107. http://dx.doi.org/10.17221/2776-pse.

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The changes of mobile sulphur (S) contents were investigated in the plant rhizosphere using precise model experiments with rhizoboxes. The tested plants were winter wheat (Triticum aestivum L.), winter rape (Brassica napus L.) and white lupine (Lupinus albus L.). In this experiment, a Cambisol from a precise field experiment treated with sewage sludge or manure was used. Total extractable S concentration and mineral S (S-SO2-4) concentration in the water extract were higher in the plant rhizosphere (< 6 mm from the root) compared to the so-called bulk soil (> 6 mm). The contents of total extractable S0 decreased in order: lupine (5–35 mg/kg) > rape (4–18 mg/kg) > wheat (1.5–3 mg/kg). The same order was observed for mineral S- SO2-4where the contents in soil extracts were 1–10 mg/kg, 2–7 mg/kg, and 0.5–3 mg/kg, respectively. The highest total extractable S and mineral S (S- SO2-4) contents were found in the treatments fertilized with organic fertilizers. In the case of rape and wheat the arylsulphatase (ARS) activity was higher in the rhizosphere compared to the bulk soil; the opposite was recorded for lupine. It was acknowledged that the ARS activity was higher in the treatments fertilized with organic fertilizers (manure or sewage sludge) with all three tested plants. The highest determined ARS activity was found after wheat cultivation, the lowest after the lupine cultivation. The organic sulphur content followed an opposite tendency (lupine > rape > wheat).

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Arfaoui, Leila. "Total polyphenol content and radical scavenging activity of functional yogurt enriched with dates." Czech Journal of Food Sciences 38, No. 5 (October 30, 2020): 287–92. http://dx.doi.org/10.17221/28/2020-cjfs.

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Both yogurt and dates are functional foods known for their valuable nutrients and health benefits. Therefore, this study was conducted to produce two types of date-enriched yogurts (20% wt/wt) to enhance their nutritive value and health benefits. While yogurt A was made with dates blended with milk, yogurt B was produced using small pieces of dates that were added to milk before fermentation. Both date-enriched yogurts were assessed for their physicochemical composition, total polyphenol content (TPC) and radical scavenging activity (RSA). The results showed that the addition of dates significantly enhanced carbohydrate, mineral and total solids contents of yogurts A and B (P < 0.05). Furthermore, dates significantly enhanced the TPC (34 and 37 mg GAE 100 g–1 for yogurt A and B, respectively) and the RSA (51% for yogurt A versus 57% for yogurt B) of date-enriched yogurts especially when dates were added as small pieces. During cold storage, both TPC and RSA decreased in all yogurt samples; however, they were maintained higher in date-enriched yogurts.

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Mahboubi, Mohaddese, Atefeh Mahboubi, and Nastaran Kazempour. "The antimicrobial activity of Prunella vulgaris extracts." Herba Polonica 61, no. 1 (March 1, 2015): 31–38. http://dx.doi.org/10.1515/hepo-2015-0008.

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Summary Prunella vulgaris ( Labiatae family) or self-heal is traditionally used for different ailments such as eye pain and inflammation, headache, dizziness, sore throat and wound healing. Total phenolic and total flavonoid contents of extracts (methanol, ethanol and aqueous) were determined by a spectrophotometer. The antimicrobial activity was evaluated by micro broth dilution assay. The total phenolic content of P. vulgaris extracts were higher in aqueous extract (156.5 mg GAC/g) followed by ethanol extract and methanol extract. The TFC content of P. vulgaris methanol extract (82.8 mg QE/g) was higher than ethanol extract (22.7 mg QE/g) and aqueous extract (16.2 mg QE/g). The antimicrobial activity of methanol or ethanol extracts was higher than aqueous extract from P. vulgaris. The sensitivity of microorganisms to different extracts is related to type of pathogens. There is no positive relation between total phenolic content and its antimicrobial activity. Prunella vulgaris ethanolic extract as a source of phenolic and flavonoid contents can be used as an antimicrobial agent.

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Iwata, Mayu, Hiroki Miyamoto, Takahiro Hara, Daijiro Komaki, Kentaro Shimatani, Tomohiro Mashita, Kiyoshi Kiyokawa, et al. "A content search system considering the activity and context of a mobile user." Personal and Ubiquitous Computing 17, no. 5 (June 13, 2012): 1035–50. http://dx.doi.org/10.1007/s00779-012-0550-1.

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Arzimatova, Inoyatkhan. "INNOVATIVE ACTIVITY OF PEDAGOGY." CURRENT RESEARCH JOURNAL OF PEDAGOGICS 02, no. 06 (June 30, 2021): 122–26. http://dx.doi.org/10.37547/pedagogics-crjp-02-06-23.

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It is known that pedagogical technology in the learning process is a thematic, sequential, integrated pedagogical process, a goal-oriented, well-designed and guaranteed pedagogical process based on the needs and technical capabilities of young people. Collaborative activity for the realization of the pedagogical goal and the achievement of a guaranteed result depends on the set goal, the chosen content, method, form, means, technology. In this article, the innovative activity of the educator is scientifically researched.

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Brindzová, L., M. Čertík, P. Rapta, M. Zalibera, A. Mikulajová, and M. Takácsová. "Antioxidant activity, β-glucan and lipid contents of oat varieties." Czech Journal of Food Sciences 26, No. 3 (June 11, 2008): 163–73. http://dx.doi.org/10.17221/2564-cjfs.

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The antioxidant activity, total phenolic and β-glucans contents, and the fatty acid profile of total lipids in covered (black and yellow) and naked oats were studied. Oats with black hulls showed a significantly higher antioxidant activity in 2,2’-azino-di-[3-ethylbenzthiazoline sulphonate] (ABTS) and 2,2-diphenyl-1-picrylhydrazyl (DPPH) based tests in comparison to the grains with yellow hulls and those of the naked varieties. Radical scavenging activity of oats determined by electron paramagnetic resonance (EPR)/spin-trapping test did not depend on the colour of the grain hulls, but the naked grains showed a lower ability in scavenging reactive radicals. A positive correlation between the content of β-glucans in covered oat grains and the amount of reactive radicals scavenged was observed. Total phenolic content in the black oats was significantly higher than in the yellow and naked oat varieties. However, no significant differences in the fatty acid profile between the naked and covered oats were found, and the common fatty acids being linoleic, oleic, and palmitic acids.

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Šulc, M., J. Lachman, A. Hejtmánková, and M. Orsák. "Relationship between antiradical activity, polyphenolic antioxidants and free trans-resveratrol in grapes (Vitis vinifera L.)." Horticultural Science 32, No. 4 (November 23, 2011): 154–62. http://dx.doi.org/10.17221/3782-hortsci.

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Contents of polyphenolic antioxidants as total polyphenols (TP), free trans-resveratrol (R) and their antiradical activity (ARA) in grape skins and seeds of grape varieties and TP in grape musts originating from 5 wine-growing Czech areas from the harvest 2003 were determined. TP content was determined spectrophotometrically with phenol Folin-Ciocalteau’s reagent, R content by HPLC method, and ARA employing the 1,1-diphenyl-2-picrylhydrazyl stable free radical (DPPH·). Obtained results were evaluated statistically by Statistica programme. TP did not show any statistically significant differences between the analysed varieties (p < 0.05) in grape seeds and skins, but regarding wine-growing regions a significant difference in TP (p < 0.10) in grape skins was found. ARA (p < 0.05) was not significant either for grape seeds or for grape skins in relation to wine-growing regions and varieties. The highest TP contents were found in grape seeds (536.6 mg/g DM), whereas R contents were higher in the skins (av. 1.67 μg/kg DM). Blue grape varieties showed a higher TP content in grape skins and also in must as compared with white grape varieties. The assessment of ARA of extracts of model constituents of grapes tannin (T) and gallic acid (GA) revealed their higher antiradical activity in comparison with ascorbic acid (AA).

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Silva, K. "Investigation of Nutrient Content, Phytochemical Content, Antioxidant Activity and Antibacterial Activity of Inedible Portion of Pomegranate (Punica granatum L.)." European Journal of Medicinal Plants 4, no. 5 (January 10, 2014): 610–22. http://dx.doi.org/10.9734/ejmp/2014/7561.

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Resende, M., L. Paulo, P. Antunes, and C. Miguel-Pintado. "High total phenol content, antioxidant activity and mineral content in ‘Sweetheart’ cherry peel." Acta Horticulturae, no. 1161 (May 2017): 673–76. http://dx.doi.org/10.17660/actahortic.2017.1161.107.

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Mitrevska, Katerina, Spyros Grigorakis, Sofia Loupassaki, and Antony C. Calokerinos. "Antioxidant Activity and Polyphenolic Content of North Macedonian Wines." Applied Sciences 10, no. 6 (March 16, 2020): 2010. http://dx.doi.org/10.3390/app10062010.

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The purpose of this study was to evaluate comparatively the polyphenolic content and the antioxidant activity of selected regional red and white wine varieties, produced in the Republic of North Macedonia. The polyphenolic content was evaluated by measuring the total polyphenol, total flavonoid, total tannin and total anthocyanin contents and the antioxidant activity by applying the DPPH (2,2-diphenyl-1-picrylhydrazyl), FRAP (ferric-reducing antioxidant power) and CUPRAC (cupric ion-reducing antioxidant capacity) assays. Statistical analysis of the results showed that all white wines examined (Smederevka, Temjanika and Zhilavka) belong to the same group, two red wines (Vranec and Kratoshija) belong to another group while the Stanushina red variety shows distinct differences from the other red wines examined.

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Totušek, J., J. Tříska, D. Lefnerová, J. Strohalm, N. Vrchotová, O. Zendulka, J. Průchová, J. Chaloupková, P. Novotná, and M. Houška. " Contents of sulforaphane and total isothiocyanates, antimutagenic activity, and inhibition of clastogenicity in pulp." Czech Journal of Food Sciences 29, No. 5 (October 7, 2011): 548–56. http://dx.doi.org/10.17221/394/2010-cjfs.

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The consumption of Cruciferous vegetables is important for the prevention of cancerous diseases, particularly colorectal cancer. The effects of technological treatments (freezing, pasteurisation, high-pressure treatment) on the content of isothiocyanates, considered to be the active substance, were observed in single-species vegetable juices prepared from cruciferous vegetables (broccoli, cauliflower, Brussels sprouts, white and red cabbage). The contents of sulforaphane and total isothiocyanates were studied relative to the temperature, action period, and time delay after juice pressing. Sulforaphane and total isothiocyanates were determined by HPLC. Sulforaphane content in various parts of fresh broccoli was also assessed. Antimutagenic activity of the juices (frozen, pasteurised, and high-pressure treated) was evaluated using the Ames test and the following mutagens:  AFTB1 (aflatoxin B1), IQ (2-amino-3-methyl-3H-imidazo-[4,5-f]quinoline), and MNU (2-nitroso-2-methylurea). Clastogenicity inhibition of the mutagens, in response to broccoli juice, as well as of pure sulforaphane, was observed using an in vivo experiment (the micronucleus test). It was shown that in terms of sulforaphane content, it is best to let broccoli juice stand for 60 min after pressing and pH adjustment. Sulforaphane content does not change under heating to 60°C. Its content decreases considerably (compared to fresh juice) with heating to higher temperatures than 60°C. High-pressure treatment preserves mutagenic inhibition to the same degree as juices freezing.

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Capouchová, Ivana, Barbora Burešová, Luboš Paznocht, Marie Eliášová, Kateřina Pazderů, Petr Konvalina, Matěj Satranský, and Václav Dvořáček. "Antioxidant activity and content of selected antioxidant compounds in grain of different oat cultivars." Plant, Soil and Environment 66, No. 7 (July 21, 2020): 327–33. http://dx.doi.org/10.17221/212/2020-pse.

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The total antioxidant activity (TAA), total contents of polyphenols (TPC), phenolic acids (TPA) and tocols (TTC) were determined in the grain of 5 oat cultivars of Czech origin grown under organic and conventional cropping systems in two-year experiments (2018 and 2019). The TPC ranged from 772.9 mg/kg DM (dry matter) (hulled oat cv. Seldon) to 890.6 mg/kg (naked oat cv. Patrik); the TPA from 261.6 mg/kg (cv. Seldon) to 479.0 mg/kg (cv. Patrik); the TTC from 110.9 mg/kg (hulled oat cv. Korok) to 126.5 mg/kg (cv. Seldon). The TAA ranged from 427.1 mg/kg (cv. Korok) to 474.9 mg/kg (cv. Seldon). Besides the effect of the cultivar, the TAA and antioxidant contents were significantly affected also by year (weather conditions); higher values were observed in the drier and warmer the year 2019. The effect of the cropping system was statistically insignificant.

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Hamouz, K., J. Lachman, K. Pazderů, J. Tomášek, K. Hejtmánková, and V. Pivec. "Differences in anthocyanin content and antioxidant activity of potato tubers with different flesh colour." Plant, Soil and Environment 57, No. 10 (October 12, 2011): 478–85. http://dx.doi.org/10.17221/265/2011-pse.

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The aim of this study was to determine that the total anthocyanin content (TAC) and antioxidant activity (AOA) in potato flesh with different colours grown in the Czech Republic. Four yellow- or white-, six purple- and four red-fleshed varieties were grown in 2009 at two different sites (Valečov – highland, seed potato area at 460 m a.s.l., Přerov nad Labem – lowland, new potatoes area at 178 m a.s.l.) in precise field trials. For purple- and red-fleshed varieties, average TAC values ranged from 61.5 to 573.5 cyanidin mg/kg of FM and significant effect of the variety of the TAC was found. High content reached the Violette and Vitelotte varieties with dark purple flesh, and the lowest content the Blue Congo variety with light purple marbled flesh. Significantly higher TAC was found in a lowland area Přerov nad Labem, which is probably related to drought stress. The lowest AOA was achieved by a group of varieties with yellow or white flesh – averaging 82.8 mg ascorbic acid equivalent/kg FM, in a group of red-fleshed varieties it was higher 4.34 times and in a group of purple-fleshed varieties even 5.03 times higher. Also between purple-and red-fleshed varieties significant differences in AOA were found, both high and low values of AOA showed the same varieties as in the case of the TAC. Among experimental sites higher AOA was also demonstrated at Přerov nad Labem. Correlation analysis showed a strong correlation between AOA and TAC (r = 0.8099).

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Policegoudra, RS, S. Saikia, J. Das, P. Chattopadhyay, L. Singh, and V. Veer. "Phenolic content, antioxidant activity, antibacterial activity and phytochemical composition of Garcinia lancifolia." Indian Journal of Pharmaceutical Sciences 74, no. 3 (2012): 268. http://dx.doi.org/10.4103/0250-474x.106075.

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Abzalov, R. A., R. R. Nigmatullina, and I. G. Khuramshin. "Acetylcholine content and tissue cholinesterase activity in rats with different motor activity." Bulletin of Experimental Biology and Medicine 124, no. 6 (December 1997): 1177–79. http://dx.doi.org/10.1007/bf02445112.

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Šarić, G., K. Marković, D. Vukičević, E. Lež, M. Hruškar, and N. Vahčić. "Changes of antioxidant activity in honey after heat treatment." Czech Journal of Food Sciences 31, No. 6 (November 18, 2013): 601–6. http://dx.doi.org/10.17221/509/2012-cjfs.

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We determined how the antioxidant activity and total phenolic content of honey changed after being subjected to a high temperature. Antioxidant activity was determined using two methods – FRAP (ferric reducing antioxidant power) and DPPH (1,1-diphenyl-2-picrylhydrazyl) assays. Total phenolic content was determined by modified Folin-Ciocalteu method. The research was conducted on 31 samples of acacia honey and 8 samples of chestnut honey. All measurements were done at two temperatures – at 23°C (room temperature) and after 5 min of heating at 95°C. The obtained results show uneven changes of antioxidant activity and total phenolic content among individual samples, i.e. in some samples antioxidant activity decreased after heating, while in others it increased. The same applies to the total phenolic content. Statistical analysis of the results (t-test) showed no statistically significant differences between the results measured at two different temperatures (P > 0.05) in all three methods used, and in both types of honey. The only statistically significant difference (P < 0.05) was observed when using DPPH method in acacia honey.

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Vizzotto, Marcia, Luis Cisneros-Zevallos, David H. Byrne, David W. Ramming, and W. R. Okie. "Large Variation Found in the Phytochemical and Antioxidant Activity of Peach and Plum Germplasm." Journal of the American Society for Horticultural Science 132, no. 3 (May 2007): 334–40. http://dx.doi.org/10.21273/jashs.132.3.334.

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Nineteen peach [Prunus persica (L.) Batsch] genotypes and 45 plum (Prunus salicina Erhr. and hybrids) genotypes with different flesh and skin color were analyzed for their antioxidant content and activity. Anthocyanin content, phenolic content, and antioxidant activity were higher in red-flesh than in light-colored flesh peaches. Carotenoid content was higher in yellow-flesh peaches than in light-colored ones. Red-flesh plums generally had higher anthocyanin and phenolic contents than the other plums but not necessarily greater antioxidant capacity. The total phenolic content had the most consistent and highest correlation with antioxidant activity, indicating that it is more important in determining the antioxidant activity of peaches and plums than are the anthocyanin or carotenoid contents. In general, the wide range of phytochemical content and antioxidant activity found indicates that the genetic variability present can be used to develop cultivars with enhanced health benefits.

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Osman Adam, Osman Adam, Ragaa Satti Mohmmed Abadi, and Saad Mohamed Hussein Ayoub. "Antioxidant activity, Total Phenolic and Flavonoid Contents and Cytotoxic activity of Euphorbia aegyptiaca." Journal of Drug Delivery and Therapeutics 10, no. 2 (March 15, 2020): 37–41. http://dx.doi.org/10.22270/jddt.v10i2.3911.

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Euphorbia aegyptiaca is a herbaceous plant traditionally used in Sudan for treatment of various diseases, and the study of this plant is still limited. The aim of the present study was to screen the phytochemicals and to assess the Antioxidant activity, total phenolic, flavonoid contents and cytotoxic activity of Euphorbia aegyptiaca. The plant material was extracted successively by Soxhlet apparatus using n-hexane, chloroform and methanol. The chemical constituents of the extracts were carried out using the standard procedures. The Folin- Ciocalteu and Aluminium chloride method was employed to calculate the total phenolic and flavonoid content, respectively. The antioxidant activity, was assessed by measuring the scavenging activity of the DPPH (2.2Di (4-tert-octylphenyl)-1-picryl-hydrazyl) and Propyl Gallate as standard antioxidants. While cytotoxic activities were screened using brine shrimp. Phytochemical screening studies revealed that flavonoids, tannins, coumarins, saponins, sterols, terpenes, anthraquinones and alkaloids were the main phytochemicals present in extracts of E. aegyptiaca. The methanol extract showed the highest level of total phenolic contents (173.49±2.427 mg GAE/g) and flavonoid content (239.53±7.90 mg QE/g), and the highest antioxidant activity 89% with least (IC50 0.0449µg/ml), and the no toxicity against brine shrimp (LD50 3423.156). Furthermore, no toxicity in all extracts was observed. The present study is the first evaluation regarding the characterization of E. aegyptiaca and its safety, and the results demonstrate its antioxidant potential and suggest its safe therapeutic use. The results suggest that methanol extract is a rich source of phytochemicals and exhibits highest amount of and total phenolic, flavonoid content and significant antioxidant activity and it has no cytotoxic activity. E. aegyptiaca plant can be regarded as a promising Source of naturally occurring potential antioxidants. Keywords: Euphorbia aegyptiaca, Sudan, Antioxidant, Total phenolic, total flavonoid, Cytotoxicity.

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Su, Wei, Peiyuan Li, Lini Huo, Caiying Wu, Nana Guo, and Liangquan Liu. "Phenolic content and antioxidant activity of Phymatopteris hastata." Journal of the Serbian Chemical Society 76, no. 11 (2011): 1485–96. http://dx.doi.org/10.2298/jsc101111130s.

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Various solvent extracts of Phymatopteris hastata, a traditional Chinese medicinal material, were screened for their antioxidant activities. Four systems of in vitro testing were employed to investigate the antiradical and antioxidant effect, i.e., the 2,2-diphenyl-1-picryhydrazyl (DPPH) and 2,2'-azino-bis-(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS) systems, the hydroxyl radical scavenging assay and the reducing power. In addition, butylated hydroxytoluene (BHT), a widely used synthetic antioxidant, was also studied for comparison. The results revealed that the ethyl acetate extract exhibited outstanding antioxidant activities, which was close or even superior to BHT. Furthermore, the total phenolic (TP) and total flavonoid (TF) contents of different extracts were measured, expressed as gallic acid and rutin equivalent, respectively. The antioxidant activities and the TP/TF content of different extracts followed the same order: ethyl acetate extract > butyl alcohol extract > petroleum ether extract, showing a good correlation between the antioxidant activities and the TP/TF content. The results showed that these extracts, especially the ethyl acetate extract, were rich in phenolics and flavonoids and could be considered as natural antioxidants.

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Nardini, Mirella, and Maria Stella Foddai. "Phenolics Profile and Antioxidant Activity of Special Beers." Molecules 25, no. 11 (May 26, 2020): 2466. http://dx.doi.org/10.3390/molecules25112466.

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The antioxidant activity and polyphenols content of beer associated with its low alcohol content are relevant factors for an evaluation of the nutritional quality of beer. To investigate the effect of adding foods on the nutritional quality of beer, seven special beers that were commercially available and produced adding natural foods (walnut, chestnut, cocoa, honey, green tea, coffee, and licorice) during the fermentation process were analyzed for their polyphenols and flavonoids contents, phenolics profile, and antioxidant activity. The results obtained showed that most of the special beers under study possessed antioxidant activity, as well as total polyphenols and flavonoids contents notably higher as compared with the five conventional beers analyzed. The highest polyphenols and flavonoids contents were exhibited in cocoa, walnut, chestnut, and licorice beers, followed by coffee, honey, and green tea beers. Antioxidant activity decreased in the order walnut, cocoa, chestnut, licorice, coffee, honey, and green tea. Most special beers were enriched in catechin, epicatechin, rutin, myricetin, quercetin, and resveratrol. The content of phenolic acids, especially ferulic, p-coumaric, syringic, and sinapic acids was generally higher in special beers as compared with conventional beers. Our findings showed that the addition of natural foods during the fermentation process remarkably increased antioxidant activity of beer and qualitatively and quantitatively improved its phenolics profile.

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Zhang, Zhenchao, Chunqing Sun, Yuemei Yao, Zhongliang Mao, Guosheng Sun, and Zhongliang Dai. "Red anthocyanins contents and the relationships with phenylalanine ammonia lyase (PAL) activity, soluble sugar and chlorophyll contents in carmine radish (Raphanus sativus L.)." Horticultural Science 46, No. 1 (March 29, 2019): 17–25. http://dx.doi.org/10.17221/202/2017-hortsci.

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Red anthocyanins from Carmine radish is rich both in root flesh and peel and it is relatively simple and efficient to extract these compounds. The accumulation, distribution and content of anthocyanins in root are related to phenylalanine ammonia lyase (PAL) activity, soluble sugar and chlorophyll contents. The results showed that anthocyanins were synthesized at the first day of seed germination and were most abundant in the top of hypocotyls. The content of anthocyanins was higher in the root peel than in flesh and root apex, and in aboveground parts compared with underground sections. The anthocyanins contents in cotyledon grown under light and dark and hypocotyls grown in the dark increased initially and then reduced, and in roots grown under light was higher than in those grown in the dark. Chlorophyll content in leaves fluctuated but increased overall, whereas it was almost unchanged in the petioles. The correlations between anthocyanins content and PAL activity, soluble sugar and chlorophyll contents in different treatments showed positive by Day 4 then negative. These results are helpful to understand the mechanism of anthocyanins biosynthesis in carmine radish.

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Journal articles on the topic 'Activity and content'

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