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Journal articles on the topic 'Rbbr'

Author: Grafiati
Published: 4 June 2021
Last updated: 17 June 2025

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1

Mikšanová, Markéta, Jiří Hudeček, Jan Páca, and Marie Stiborová. "To the Mechanism of Horseradish Peroxidase-Mediated Degradation of a Recalcitrant Dye Remazol Brilliant Blue R." Collection of Czechoslovak Chemical Communications 66, no. 4 (2001): 663–75. http://dx.doi.org/10.1135/cccc20010663.

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Thein vitroenzymatic metabolism of a recalcitrant dye Remazol Brilliant Blue R (RBBR) was investigated using horseradish peroxidase (HRP). At optimum pH (4.5), the apparent Michaelis constant (KM) value for the oxidation of RBBR catalyzed by HRP is 14.8 μmol l-1. HRP-mediated conversion of RBBR proceedsviaa conventional peroxidase reaction, by a sequential one-electron oxidation of two molecules of RBBR by the peroxidase Compounds I and II. The oxidation is inhibited by radical trapping agents (nicotinamide adenine dinucleotide reduced (NADH), ascorbate, glutathione). This confirms that the peroxidase-mediated oxidation of RBBR proceedsviaradical mechanism. Gel permeation profile of the RBBR oxidation products shows that the pattern of molecular weight distribution was shifted to the higher molecular weight region indicating formation of RBBR oligomers. In addition to HRP, the RBBR dye is also oxidized by another peroxidase, the mammalian lactoperoxidase.
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2

Sing, Ngieng Ngui, Ahmad Husaini, Azham Zulkharnain, and Hairul Azman Roslan. "Decolourisation Capabilities of Ligninolytic Enzymes Produced byMarasmius cladophyllusUMAS MS8 on Remazol Brilliant Blue R and Other Azo Dyes." BioMed Research International 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/1325754.

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Marasmius cladophylluswas examined for its ability to degradatively decolourise the recalcitrant dye Remazol Brilliant Blue R (RBBR) and screened for the production of ligninolytic enzymes using specific substrates. Monitoring dye decolourisation by the decrease in absorbance ratio ofA592/A500shows that the decolourisation of RBBR dye was associated with the dye degradation.Marasmius cladophyllusproduces laccase and lignin peroxidase in glucose minimal liquid medium containing RBBR. Both enzyme activities were increased, with laccase activity recorded 70 times higher reaching up to 390 U L−1on day 12. Further in vitro RBBR dye decolourisation using the culture medium shows that laccase activity was correlated with the dye decolourisation. Fresh RBBR dye continuously supplemented into the decolourised culture medium was further decolourised much faster in the subsequent round of the RBBR dye decolourisation. In vitro dye decolourisation using the crude laccase not only decolourised 76% of RBBR dye in just 19 hours but also decolourised 54% of Orange G and 33% of Congo red at the same period of time without the use of any exogenous mediator. This rapid dye decolourisation ability of the enzymes produced byM. cladophyllusthus suggested its possible application in the bioremediation of dye containing wastewater.
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3

Garkushin, I. K., E. I. Frolov, and V. I. Syrova. "System RbF–RbBr–Rb2SO4." Russian Journal of Inorganic Chemistry 63, no. 5 (2018): 670–74. http://dx.doi.org/10.1134/s0036023618050182.

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4

Cederberg, James. "Hyperfine spectrum of RbBr." Journal of Molecular Spectroscopy 299 (May 2014): 22–24. http://dx.doi.org/10.1016/j.jms.2014.03.007.

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5

Siswanti, Siswanti, Afifah Hasna Oktafiana, and Yobellya Putri. "Adsorpsi Zat Warna Remazol Brilliant Blue R Pada Limbah Industri Batik Menggunakan Adsorben dari Mahkota Buah Nanas." Eksergi 21, no. 1 (2023): 9. http://dx.doi.org/10.31315/e.v21i1.10669.

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Industri batik banyak yang menggunakan zat warna reaktif Remazol Brilliant Blue R (RBBR) pada proses pewarnaan. RBBR merupakan zat warna yang memberikan warna cerah namun sulit terdegradasi dan bersifat karsinogenik. Proses pewarnaan ini menghasilkan limbah cair yang berbahaya sehingga perlu dilakukan pengolahan. Adsorpsi menggunakan karbon aktif sebagai adsorben menjadi salah satu cara untuk menurunkan konsentrasi RBBR dalam limbah cair industri batik. Dalam penelitian ini adsorben yang digunakan berasal dari mahkota buah nanas, dengan pertimbangan kandungan selulosanya tinggi serta mahkota buah nanas masih jarang dimanfaatkan dan hanya menjadi sumber limbah di lingkungan. Variabel dalam penelitian ini adalah massa adsorben 1, 2, 3, 4, dan 5 gram serta waktu kontak proses adsorpsi 10, 20, 30, hingga 110 menit. Penelitian dimulai dari pembuatan adsorben mahkota buah nanas, penentuan panjang gelombang maksimum, pembuatan kurva standar, serta pengukuran kadar RBBR sebelum dan setelah adsorpsi dengan menggunakan spektrofotometer UV-Vis. Adsorben mahkota buah nanas berukuran -80 + 100 mesh, dengan kadar air 13,33 ± 0,0245%, luas permukaan 297,9 m2/g, volume pori 29,91 cm3/g dan berdiameter pori 2079,47 Å. Dengan penggunaan adsorben 4 gram dan waktu kontak 100 menit, menghasilkan kemampuan adsorpsi maksimum 74,55% dengan kadar RBBR akhir pada limbah 47,0209 ppm.
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6

Correia, Marcos José, José Antônio de Sousa Pereira Junior, Jefferson Cunha dos Santos, and Maria Auxiliadora de Queiroz Cavalcanti. "Use of remazol blue dyed avicel for the determination of cellulolytic activity in basidiomycetes." Revista de Microbiologia 29, no. 4 (1998): 286–88. http://dx.doi.org/10.1590/s0001-37141998000400010.

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A modified method for direct determination of cellulolytic activity using Avicel colored with Remazol Brilliant Blue R (RBBR) in Agar test tubes is discussed. Refinements were introduced in a simple method for quantitation of cellulase activity, based on the release of dye from Avicel-RBBR medium by the enzymatic hydrolysis. Modifications in Avicel-dye preparation were enhanced and a spectrophotometer for direct OD measurement in agar test tubes used. The use of a spectrophotometer improved the precision of the collected data, since absorbance measurements could be done at the maximum wavelenght for RBBR (595 nm).
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7

Arslantaş, Ceren, Islem M'barek, Mohammed Saleh, et al. "Basic Red 18 and Remazol Brilliant Blue R biosorption using Russula brevipes, Agaricus augustus, Fomes fomentarius." Water Practice and Technology 17, no. 3 (2022): 749–62. http://dx.doi.org/10.2166/wpt.2022.008.

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Abstract In this study, the adsorption abilities of Russula brevipes (RB), Agaricus augustus (AA), and Fomes fomentarius (FF) were evaluated in Basic Red 18 (BR18) and Remazol Brilliant Blue R (RBBR) biosorption from textile effluent. The adsorbents were characterized via Scanning Electron Microscopy (SEM), Energy Dispersive Spectrometer (SEM-EDS), and Fourier transform infrared spectroscopy (FT/IR). Fomes fomentarius presented a low sorption capacity contrary to the two other fungi (RB and AA). RB and AA were selected as potential adsorbents for BR18 and RBBR, respectively. The maximum BR18 removal efficiencies for 10, 25, and 50 mg/L were obtained after 60 min to be 90, 88, and 86%, respectively. The RBBR adsorption efficiencies were 96.4, 96, and 90% for dye concentrations of 10, 25, and 50 mg/L. The adsorption of BR18 onto the RB biomass followed the Freundlich isotherm, while Langmuir is the best isotherm for RBBR sorption's elucidation onto AA fungus biomass. The removal of BR18 by BR biomass was found to follow the pseudo-second order. In contrast, the adsorption of RBBR onto the AA biomass followed Lagergren's pseudo-first order. For both adsorbents, the adsorption was exothermic, feasible, and spontaneous in nature. Finally, the dyes' biosorption process was perfectly achieved onto fungi biomass via physisorption.
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8

Shuib, Fatin Nur Sufinas, Ahmad Husaini, Azham Zulkharnain, Hairul Azman Roslan, and Tay Meng Guan. "Optimization of Physiochemical Parameters during Bioremediation of Synthetic Dye byMarasmius cladophyllusUMAS MS8 Using Statistical Approach." Scientific World Journal 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/8296239.

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In many industrial areas such as in food, pharmaceutical, cosmetic, printing, and textile, the use of synthetic dyes has been integral with products such as azo dye, anthrax, and dyestuffs. As such, these industries produce a lot of waste by-products that could contaminate the environment. Bioremediation, therefore, has become an important emerging technology due to its cost-sustainable, effective, natural approach to cleaning up contaminated groundwater and soil via the use of microorganisms. The use of microorganisms in bioremediation requires the optimisation of parameters used in cultivating the organism. Thus the aim of the work was to assess the degradation of Remazol Brilliant Blue R (RBBR) dye on soil using Plackett-Burman design by the basidiomycete,M. cladophyllusUMAS MS8. Biodegradation analyses were carried out on a soil spiked with RBBR and supplemented with rice husk as the fungus growth enhancer. A two-level Plackett-Burman design was used to screen the medium components for the effects on the decolourization of RBBR. For the analysis, eleven variables were selected and from these four parameters, dye concentration, yeast extract concentration, inoculum size, and incubation time, were found to be most effective to degrade RBBR with up to 91% RBBR removal in soil after 15 days.
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9

AKANYETİ, İme, and Jamilu ABDULLAHİ. "Competitive Adsorption of Anionic Dyes from Aqueous Single and Binary Solutions with CoAl Layered Double Hydroxide." International Journal of Environment and Geoinformatics 10, no. 3 (2023): 65–76. http://dx.doi.org/10.30897/ijegeo.1167267.

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Layered double hydroxides (LDH) have previously been extensively studied as high capacity adsorbents for the removal of dyes from water. However, a comprehensive understanding of why one dye is adsorbed more than another still remains unknown. In addition, a very little is known about how adsorption mechanisms scale when more than one dye is present in the solution. The adsorption capacity of cobalt-aluminum (CoAl) LDH was investigated for methyl orange (MO), remazol brilliant blue (RBBR) and allura red (AR), at different dye concentrations. The maximum mass of dye adsorbed was obtained for MO (2.267 mmol/g), followed by RBBR (0.258 mmol/g) and AR (0.195 mmol/g). X-Ray Diffraction and Fourier transform infrared analysis results demonstrated that surface adsorption and electrostatic interactions contributed to the adsorption while intercalation did not. In a binary solution of MO and RBBR, the highest mass of MO adsorbed was reduced to 1.521 mmol/g while the maximum RBBR mass adsorbed increased to 0.268 mmol/g. CoAl LDH had a preferential adsorption for RBBR within concentrations up to 0.026 mmol/L while MO was preferred at higher concentrations. Overall, the findings suggest that the adsorption capacity of an LDH is highly dependent on the number, characteristics and the equilibrium concentrations of dyes present in a solution.
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10

Idris, Mohd Nazri, Zainal Arifin Ahmad, and Mohd Azmier Ahmad. "Characterization of Potential Used Rubber Seed Coat Waste for the Removal of Remazol Brilliant Blue R Reactive Dye." Advanced Materials Research 620 (December 2012): 224–29. http://dx.doi.org/10.4028/www.scientific.net/amr.620.224.

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In the present work, activated carbon was prepared from rubber seed coat by physicochemical activation for the removal of Remazol Brilliant Blue R (RBBR) dye from aqueous solution. The effects of dye initial concentration, contact time, solution temperature and pH on RBBR adsorption onto rubber seed coat based activated carbon (RSCAC) were investigated. The adsorption uptake was found to increase with increase in initial dye concentration and contact time. Change in temperature and pH also played an important role to RBBR adsorption capability. Study showed that rubber seed coat is suitable to be used as activated carbon precursor.
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11

da Silva, Michelle Reis, Lívian Ribeiro Vasconcelos de Sá, Carlos Russo, Elita Scio, and Viridiana Santana Ferreira-Leitão. "The Use of HRP in Decolorization of Reactive Dyes and Toxicological Evaluation of Their Products." Enzyme Research 2010 (January 20, 2010): 1–7. http://dx.doi.org/10.4061/2010/703824.

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This work studied the potential use of horseradish peroxidase (HRP) in the decolorization of the following textile dyes: Drimarene Blue X-3LR (DMBLR), Drimarene Blue X-BLN (DMBBLN), Drimarene Rubinol X-3LR (DMR), and Drimarene Blue CL-R (RBBR). Dyes were individually tested in the reaction media containing 120 mg⋅L-1, considering the following parameters: temperature (20–45°C), H2O2 concentration (0–4.44 mmol⋅L-1), and reaction time (5 minutes, 1 and 24 h). The following conditions: 35°C, 0.55 mmol⋅L-1, and 1h, provided the best set of results of color removal for DMBLR (99%), DMBBLN (77%), DMR (94%), and RBBR (97%). It should be mentioned that only 5 minutes of reaction was enough to obtain 96% of decolorization for DMBLR and RBBR. After the decolorization reactions of DMBLR, DMR, and RBBR, it was possible to observe the reduction of Artemia salina mortality and the no significant increase in toxicity for the products generated from DMBBLN.
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12

Aksu, Onder, Nuran Cikcikoglu Yildirim, Durali Danabas, and Numan Yildirim. "Biochemical impacts of the textile dyes Remazol Brillant Blue R and Congo Red on the crayfish Astacus leptodactylus (Decapoda, Astacidae)." Crustaceana 90, no. 13 (2017): 1563–74. http://dx.doi.org/10.1163/15685403-00003738.

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In this study, we determined the effects of the textile dyes Remazol Brillant Blue R (RBBR) and Congo Red (CR) on the enzymatic activities of Glutathione S-Transferase (GST), cytochrome P450 (CYP1A1) and Lactate dehydrogenase (LDH), in hepatopancreas of Astacus leptodactylus. The crayfishes were exposed to 0.5, 1.0, and 2.0 mg/l of RBBR or CR, for 24 and 48 h. The recorded GST activity clearly increased after 24 or 48 h exposure to CR, compared to a control group (), but the changes of GST activity depending on time and dose were not statistically significant in the RRBR group (). The activity of CYP1A1 generally decreased, but LDH activity increased in the groups exposed to different doses of CR and RBBR, when compared to their control groups. Detoxification enzymes (as GST, and CYP1A1) and metabolic enzymes (as LDH) can be proven to make useful markers for further evaluating the physiological effects of CR and RBBR on crayfish.
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13

Ahmad, Mohd Azhar, Safarudin Gazali Herawan, and Ahmad Anas Yusof. "Equilibrium, Kinetics, and Thermodynamics of Remazol Brilliant Blue R Dye Adsorption onto Activated Carbon Prepared from Pinang Frond." ISRN Mechanical Engineering 2014 (March 23, 2014): 1–7. http://dx.doi.org/10.1155/2014/184265.

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The adsorption of remazol brilliant blue R (RBBR) dye on pinang frond based activated carbon (PF-AC) was investigated in a batch process. The effects of initial dye concentration, contact time, solution temperature, and solution pH were evaluated. The adsorption equilibrium and kinetic were found to follow Freundlich isotherm models and pseudo-second-order kinetic model, respectively. The mechanism of the adsorption process was found from the intraparticle diffusion model. Result from adsorption thermodynamic show that interaction for RBBR dye was found to be feasible, nonspontaneous, and endothermic. The results indicated that the PF-AC is very effective for the RBBR adsorption from aqueous solution.
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14

Jambak, Arya Neta Adinda, Nurlaila Harahap, and Kusmilawaty Kusmilawaty. "Analisis Pengukuran Kinerja Keuangan Bank Umum Syariah di Indonesia Menggunakan Metode Risk Based Bank Rating (RBBR) Dan Shariah Conformity And Profitability (SCNP)." Jurnal Manajemen Akuntansi (JUMSI) 4, no. 3 (2024): 791–801. http://dx.doi.org/10.36987/jumsi.v4i3.4283.

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The study aims to find out the level of performance of sharia general Banks in Indonesia by using the risk based rating bank (RBRR) and shariah conexplaining and profitability (SCNP) period 2018-2020. He said the rupiah was expected to strengthen to rp9,100 per dollar in the Jakarta interbank spot market on Tuesday. The technique used for this research is overwhelmingly sampling by using descriptive quantitative methods. The study described the performance of the sharia general bank by two methods of risk-based rating bank (RBBR) as a result of the four aspects of the risk profile, good corporate governance, integrity integrity, and capital. The second method is the shariah contact and profitability (SCNP), viewed by the sharia-based variables with islamic income ratio, islamic income ratio, and profit sharing share as well as return on assets (roa), return on equity (roe), and net profit margin ratio. Research indicates that using risk-based rating bank (RBBR), the sharia general bank is in "sound" or "good" condition. Analysis by the shariah confound and profitability (SCNP), suggests that sharia general Banks are located in the third quadrant of ulq (upper left quadrant), LRQ (lower right quadrant), and LLQ (Lower Left Quadrant).
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15

Ubaidillah. "Financial Performance Measurement Analysis of Shariah Commercial Banks in Indonesia Using Risk Based Bank Rating (RBBR) and Shariah Conformity and Profitability (SCNP) Methods." Wealth: Journal of Islamic Banking and Finance 1, no. 1 (2022): 51–70. http://dx.doi.org/10.24090/wealth.v1i1.7003.

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This research aims to determine the level of performance of Islamic Commercial Banks in Indonesia using the Risk Based Bank Rating (RBRR) and Shariahh Conformity and Profitability (SCnP) for the 2017-2019 period. The object of this research is a BUMN Shariah Commercial Bank. The technique used for this research is purposive sampling using descriptive quantitative method. This study describes the performance of Islamic Commercial Banks through two methods, namely the Risk-Based Bank Rating (RBBR) method which is seen from 4 aspects, namely Risk Profile, Good Corporate Governance, Earnings, and Capital. The second method is Shariahh Conformity and Profitability (SCnP) which is seen from the Shariahh Conformity variable with indicators of Islamic Investment Ratio, Islamic Income Ratio, and Profit-Sharing Ratio and Profitability variable with indicators of Return on Assets (ROA), Return on Equity (ROE), and Net Profit Margin Ratio. The results showed that dwith the Risk-Based Bank Rating (RBBR) method, Islamic Commercial Banks are in a “Healthy” or “Good” condition. While the analysis using the Shariahh Conformity and Profitability (SCnP) method, shows that Islamic Commercial Banks are spread in three quadrants, namely URQ, LRQ, and ULQ.
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Pramana, Agita Putra, and Irni Yunita. "PENGARUH RASIO-RASIO RISK-BASED BANK RATING (RBBR) TERHADAP PERINGKAT OBLIGASI." Jurnal Manajemen Indonesia 15, no. 1 (2017): 65. http://dx.doi.org/10.25124/jmi.v15i1.394.

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Peringkat obligasi merupakan salah satu indikator ketepatan waktu pembayaran pokok dan bunga utang obligasi. Selain itu, peringkat obligasi mencerminkan skala risiko dari semua obligasi yang diperdagangkan. Dengan demikian semakin tinggi peringkat obligasi, semakin menunjukkan bahwa obligasi tersebut terhindar dari risiko default. Namun hingga saat ini tidak ada keterangan yang jelas bagaimana lembaga pemeringkat memperingkatkan obligasi. Sebagai investor perlu mengetahui faktor – faktor apa saja yang mempengaruhi peringkat obligasi, sehingga investor tahu pasti keadaan perusahaan sebelum memutuskan melakukan investasi.
 Risk-based bank rating (RBBR) menggantikan analisis CAMEL dalam menilai kesehatan perbankan. Sedangkan telah diketahui bahwa analisis CAMEL tidak hanya dapat digunakan untuk menilai kesehatan bank namun dapat juga digunakan sebagai indikator dalam menyusun peringkat dan memprediksi kebangkrutan bank. Demikian pula dengan RBBR, cakupan penilaian yang digunakan RBBR meliputi faktor Profil Risiko (risk profile), Good Corporate Governance (GCG), Rentabilitas (earnings), dan Permodalan (capital). Jika dihubungkan dengan peringkat obligasi, RBBR memiliki kesamaan dalam pengukuran kinerja perusahaan melalui rasio-rasio keuangan yang digunakan.
 Penelitian ini bertujuan untuk menguji apakah terdapat pengaruh rasio-rasio yang digunakan pada RBBR terhadap peringkat obligasi. Rasio yang menjadi variabel dari penelitian ini adalah NPL, LDR, BOPO, ROA, NIM, dan CAR. Serta melibatkan delapan bank yang terdafar di Bursa Efek Indonesia untuk dijadikan sampel dalam penelitian berdasarkan purposive sampling. Metode analisis data yang digunakan adalah regresi data panel selama periode tahun 2009-2013.
 Hasil dari penelitian menunjukkan bahwa terdapat pengaruh rasio-rasio RBBR secara simultan terhadap peringkat obligasi dan hanya rasio NPL yang berpengaruh secara parsial terhadap peringkat obligasi sedangkan rasio LDR, BOPO, ROA, NIM, dan CAR tidak berpengaruh secara parsial terhadap peringkat obligasi. Pada rasio-rasio yang digunakan dalam penelitian menunjukkan bahwa rasio tersebut dapat menjelaskan peringkat obligasi sebesar 95,57%. sedangkan sisanya 4,43% dijelaskan oleh rasio lain di luar penelitian.
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17

Inayah, Eka Putri, Moh Wahib, and Ira Eka Pratiwi. "ANALISIS TINGKAT KESEHATAN BANK PAPUA MENGGUNAKAN METODE RBBR (RISK BASED BANK RATING) PERIODE TAHUN 2011-2018." EL MUDHORIB : Jurnal Kajian Ekonomi dan Perbankan Syariah 1, no. 1 (2021): 24–45. http://dx.doi.org/10.53491/elmudhorib.v1i1.87.

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Penelitian ini bertujuan untuk menganalisis tingkat kesehatan Bank Papua periode tahun 2011-2018 menggunakan metode RBBR (Risk Based Bank Rating). Dalam penelitian ini dilakukan penilaian terhadap tiga faktor RBBR, yaitu faktor Risk Profile melalui rasio NPL dan LDR, faktor rentabilitas melalui rasio ROA dan NIM dan faktor permodalan melalui rasio CAR. Jenis penelitian ini adalah deskriptif dengan pendekatan kuantitatif. Rumusan masalah ada dua, yaitu, pertama mengenai analisis tingkat kesehatan Bank Papua menggunakan metode RBBR (Risk Based Bank Rating) dan yang kedua menyangkut performa Bank papua dilihat dari indikator NPL, LDR, ROA, NIM dan CAR.
 Hasil penelitian ini menunjukkan berdasarkan analisis tingkat kesehatan Bank Papua menggunakan metode Risk Based Bank Rating (RBBR) melalui rasio NPL, LDR, ROA, NIM dan CAR maka kondisi tingkat kesehatan Bank Papua yaitu dapat dikategorikan berada pada predikat Sehat. Namun demikian, perkembangan nilai-nilai rasio pada Bank Papua periode 2011-2018 setiap tahunnya bergerak secara fluktuatif yang berarti perkembangannya naik turun dan pada tahun-tahun tertentu bisa mencapai angka yang kurang baik atau melebihi batas minimum nilai dari masing-masing rasio. Lalu kemudian berdasarkan indikator NPL, LDR, ROA, NIM dan CAR performa Bank Papua dikategorikan baik. Kesimpulan dari hasil penelitian ini berdasarkan analisis tingkat kesehatan Bank Papua menggunakan metode Risk Based Bank Rating (RBBR) melalui rasio NPL, LDR, ROA, NIM dan CAR maka kondisi tingkat kesehatan Bank Papua yaitu dapat dikategorikan berada pada predikat Sehat. Kemudian berdasarkan indikator NPL, LDR, ROA, NIM dan CAR maka dapat disimpulkan bahwa performa Bank Papua dikategorikan baik.
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18

Laksmi, Fina Amreta, Eva Agustriana, Isa Nuryana, et al. "Removal of Textile Dye, RBBR, via Decolorization by Trametes hirsuta AA-017." Biosaintifika: Journal of Biology & Biology Education 13, no. 3 (2021): 319–27. http://dx.doi.org/10.15294/biosaintifika.v13i3.31632.

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The use of synthetic dyes has an impact on the possibility of disposing such dyes into the environment. Fungal decolorization is one promising approach due to its capability to degrade dyes, thus, exploring fungi that can be applied in dye decolorization is essential. We investigated our potential strain of Trametes hirsuta to decolorize Remazol brilliant blue R (RBBR). The enzyme activity of laccase in various conditions was observed using Syringaldazine as a substrate, while fungal immobilization was conducted using calcium alginate as a solid support. The results indicated that CuSO4 was the best inducer for the decolorization process. The fungus was able to perform 79.5% of RBBR decolorization for 48 hours in the presence of CuSO4. Laccase was the prominent detected ligninolytic enzyme when decolorization was performed. The immobilized cells were able to decolorize 85% RBBR under 0.8 mM CuSO4 andused for 3 cycles of decolorization. This study reveals the potential of fungal usage in the form of the immobilized and free cell to overcome the persistence of dye pollutants problem, as it is considered an effective, economic and eco-friendly approach for RBBR dye decolorization. These strategies can be suggested to encourage ecologically sustainable development for bioremediation.
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19

Dhokane, Juilee P., Sunita H. Patil, Sucheta N. Patil, and Niranjan P. Patil. "Fungal laccase mediated Remazol Brilliant Blue R (RBBR) dye decolorization and degradation." Research Journal of Biotechnology 20, no. 1 (2024): 36–44. https://doi.org/10.25303/201rjbt036044.

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The use of dyes is inevitable in various industries, but sustainable decolorization poses significant challenges that exhibit the need for microbial mediation. The present study investigated the potential of C. unicolor laccase for degrading Remazol Brilliant Blue R (RBBR) dye. The laccase treatment resulted in 91.8% decolorization of 100 ppm and 34.8% decolorization of 600 ppm RBBR after 12 hours. Optimization through one-variable-at-a-time (OVAT) analysis revealed optimal conditions: 20 U/ml laccase concentration, pH 5 and a 10-hour treatment time. To examine the interactive effects of temperature and dye concentration on degradation, response surface methodology (RSM) with central composite design (CCD) was applied. The predicted maximum decolorization of 80% at 275 ppm RBBR concentration and 40°C closely aligned with the experimental result of 85%. UV-vis spectroscopy showed a reduction in absorbance at 591 nm, while LC-MS identified degradation products including hydroxyphenyl-containing compounds (m/z 216 and m/z 222) and sulfanilic acid derivatives. The current study contributes to the advancement of efficient, sustainable strategies for RBBR dye bioremediation that might address critical environmental concerns related to dye pollution and will further enhance the development of bioremediation technologies for industrial applications.
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20

Glazunova, Olga A., Konstantin V. Moiseenko, and Tatyana V. Fedorova. "Xenobiotic Removal by Trametes hirsuta LE-BIN 072 Activated Carbon-Based Mycelial Pellets: Remazol Brilliant Blue R Case Study." Water 16, no. 1 (2023): 133. http://dx.doi.org/10.3390/w16010133.

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As a toxic xenobiotic compound, the anthraquinone dye Remazol Brilliant Blue R (RBBR) poses a serious threat to aquatic ecosystems. In the present study, the ability of Trametes hirsuta to remove RBBR from the medium was investigated, and the role of adsorption by fungal mycelium and biodegradation by fungal enzymes was evaluated. It was shown that the whole fungal culture was able to remove up to 97% of the dye within the first four hours of incubation. Based on enzymatic activities in the culture broth, laccases were proposed to be the main enzymes contributing to RBBR degradation, and RT-qPCR measurements demonstrated an increase in transcription for the two laccase genes—lacA and lacB. Composite mycelial pellets of T. hirsuta with improved adsorption ability were prepared by adding activated carbon to the growth medium, and the induction of laccase activity by carbon was shown. For composite pellets, the RBBR decolorization degree was about 1.9 times higher at 1 h of incubation compared to carbon-free pellets. Hence, it was shown that using fungal mycelium pellets containing activated carbon can be an effective and economical method of dye removal.
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Xu, Huan, Guilhem Boeuf, Zixian Jia, et al. "Solvent-Free Synthesized Monolithic Ultraporous Aluminas for Highly Efficient Removal of Remazol Brilliant Blue R: Equilibrium, Kinetic, and Thermodynamic Studies." Materials 14, no. 11 (2021): 3054. http://dx.doi.org/10.3390/ma14113054.

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In this study, ultraporous aluminas (UPA) were synthesized as new effective adsorbents for Remazol Brilliant Blue R (RBBR) removal from aqueous solutions. The UPA monoliths were grown via facile oxidation process, followed by isochronous annealing treatment in air at different temperatures, through which γ, θ, and α phase polycrystalline fibrous grains of UPA can be accordingly obtained. The experimental factors that affect the material adsorption performances including initial pH, contact time, and temperature were comprehensively studied by batch experiments. The RBBR adsorption isotherms of UPA(γ) and UPA(θ) powders were found almost identical, while UPA(α) powders showed low effectiveness. To obtain the desirable mechanical stability of the UPA monolith with considerable RBBR adsorption capacity, UPA(θ) powders were further studied. The UPA(θ) powders exhibited maximum RBBR adsorption at pH 2 due to the positively charged surface under acidic conditions. Compared with the Lagergren pseudo-first-order model, the pseudo-second-order model was found to explain the adsorption kinetics better. Despite the film diffusion dominating the adsorption process, the contributions of the intraparticle diffusion and chemical reactions were also found significant. The adsorption equilibrium data at different temperatures were fitted by the Langmuir, Freundlich, Temkin, and Dubinin–Radushkevich (D–R) isotherm models. The Langmuir model was found the most effective in the description of equilibrium data, and the maximum RBBR adsorption capacity retained by UPA(θ) powders was 122.55 mg·g−1 at 295 K. Thermodynamic parameters (ΔG0, ΔH0, and ΔS0) indicated the adsorption process was spontaneous and exothermic in nature.
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Idris, Mohd Nazri, Zainal Arifin Ahmad, Zakaria Mohd Amin, and Mohd Azmier Ahmad. "Optimization Process for Producing Mesopores Activated Carbon Based on Hevea Brasiliensis Seed Coat Using Response Surface Methodology." Advanced Materials Research 364 (October 2011): 382–87. http://dx.doi.org/10.4028/www.scientific.net/amr.364.382.

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The conditions for the preparation of rubber (hevea brasiliensis) seed coat based activated carbon (RSCAC) treated with NaOH were optimized through response surface methodology (RSM). The effects of three preparation variables: the activation temperature, activation time and NaOH impregnation ratio (IR) on Remazol Brilliant Blue R (RBBR) removal from aqueous solutions and RSCAC yield were investigated. Based on the RSM, two quadratic models were respectively developed to correlate the preparation variables to the RBBR percentage removal and carbon yield. The significant factors on each experimental design response were identified from the analysis of variance (ANOVA). The optimum conditions for RSCAC preparation were obtained by using activation temperature of 700 °C, activation time of 1.0 h and IR of 1.0, which resulted in 70.82% of RBBR removal and 24.93% of RSCAC yield.
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Gong, Weiping, Yue Wu, Tengfei Chen, Shuo Feng, Marcelle Gaune-Escard, and Zhanpeng Jin. "Thermodynamic investigation of the RbBr– system." Calphad 34, no. 2 (2010): 176–79. http://dx.doi.org/10.1016/j.calphad.2010.02.002.

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Chan, Chien-Lu. "Compressibility of RbBr at elevated pressures." Journal of Solid State Chemistry 94, no. 1 (1991): 72–78. http://dx.doi.org/10.1016/0022-4596(91)90222-4.

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Heneral, A. A., and S. V. Avtaeva. "Emission characteristics of Xe–RbBr plasma." Journal of Physics D: Applied Physics 50, no. 49 (2017): 495202. http://dx.doi.org/10.1088/1361-6463/aa93bb.

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Qin, Peng, Yuetong Wu, Bilal Adil, et al. "Optimization of Laccase from Ganoderma lucidum Decolorizing Remazol Brilliant Blue R and Glac1 as Main Laccase-Contributing Gene." Molecules 24, no. 21 (2019): 3914. http://dx.doi.org/10.3390/molecules24213914.

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Many dyes and pigments are used in textile and printing industries, and their wastewater has been classed as a top source of pollution. Biodegradation of dyes by fungal laccase has great potential. In this work, the influence of reaction time, pH, temperature, dye concentration, metal ions, and mediators on laccase-catalyzed Remazol Brilliant Blue R dye (RBBR) decolorization were investigated in vitro using crude laccase from the white-rot fungus Ganoderma lucidum. The optimal decolorization percentage (50.3%) was achieved at 35 °C, pH 4.0, and 200 ppm RBBR in 30 min. The mediator effects from syringaldehyde, 1-hydroxybenzotriazole, and vanillin were compared, and 0.1 mM vanillin was found to obviously increase the decolorization percentage of RBBR to 98.7%. Laccase-mediated decolorization percentages significantly increased in the presence of 5 mM Na+ and Cu2+, and decolorization percentages reached 62.4% and 62.2%, respectively. Real-time fluorescence-quantitative PCR (RT-PCR) and protein mass spectrometry results showed that among the 15 laccase isoenzyme genes, Glac1 was the main laccase-contributing gene, contributing the most to the laccase enzyme activity and decolorization process. These results also indicate that under optimal conditions, G. lucidum laccases, especially Glac1, have a strong potential to remove RBBR from reactive dye effluent.
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Gita, Maria Pricilia, Ratna Stia Dewi, and Ajeng Arum Sari. "OPTIMASI WAKTU INKUBASI DAN pH Ganoderma sp. DARI KEBUN RAYA BATURRADEN UNTUK DEKOLORISASI RBBR." BioEksakta : Jurnal Ilmiah Biologi Unsoed 2, no. 1 (2020): 131. http://dx.doi.org/10.20884/1.bioe.2020.2.1.1771.

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Jamur pelapuk putih diketahui memiliki kemampuan untuk mendekolorisasi pewarna, salah satunya jamur Ganoderma sp. dari Kebun Raya Baturraden. Jamur tersebut mampu mendekolorisasi Remazol Brillliant Blue R (RBBR) yang bersifat toksik, mutagenik, karsinogenik, dan stabil terhadap perlakuan fisika maupun kimia, Proses dekolorisasi dapat dipengaruhi oleh faktor lingkungan seperti waktu inkubasi dan pH. Setiap jamur pelapuk putih memiliki waktu inkubasi dan pH optimum yang berbeda dalam mendekolorisasi pewarna. Penelitian ini bertujuan untuk mengetahui kemampuan isolat Ganoderma sp. dari Kebun Raya Baturraden dengan waktu inkubasi dan pH berbeda dalam mendekolorisasi pewarna RBBR, serta mengetahui variasi waktu inkubasi dan pH yang menunjukkan hasil terbaik.
 Penelitian ini menggunakan metode eksperimental dengan Rancangan Acak Lengkap (RAL) dengan Perlakuan variasi pada penelitian ini terdiri dari waktu inkubasi yaitu 24, 48, 72, 96, dan 120 jam, serta pH 3, 4, 5, 6, dan 7. Analisis data menggunakan metode Analysis of Variance (ANOVA) dan dilanjutkan dengan uji Beda Nyata Jujur (BNJ).
 Hasil penelitian menunjukkan bahwa Ganoderma sp. dari Kebun Raya Baturraden mampu mendekolorisasi RBBR pada waktu inkubasi dan pH berbeda dengan persentase dekolorisasi 4,10% - 83,04%. Persentase dekolorisasi tertinggi ditunjukkan pada waktu inkubasi 96 jam dan pH 6, yaitu 83,04%. Hal tersebut membuktikan bahwa Ganoderma sp. dari Kebun Raya Baturraden memiliki waktu inkubasi optimum 96 jam, serta pH optimum 6 untuk mendekolorisasi RBBR.
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Saputra, Ozi Adi, Alifia Harista Rachma, and Desi Suci Handayani. "Adsorption of Remazol Brilliant Blue R Using Amino-Functionalized Organosilane in Aqueous Solution." Indonesian Journal of Chemistry 17, no. 3 (2017): 343. http://dx.doi.org/10.22146/ijc.25097.

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Synthesis of amino functionalized organosilane (AFOS) via UV-irradiation method has been conducted. In this research, the precursors for synthesizing AFOS are 3-glycydiloxypropyl trimethoxysilane (GPTMS) and ethylene diamine. Synthesis of amino functionalized organosilane was performed for 16 h monitored by Infra-red spectroscopy technique. The morphological structure of AFOS was observed by scanning electron microscopy. The adsorption process was conducted in the batch method using Remazol Brilliant Blue R (RBBR) as anionic dye model. In this study, the pH, contact time and dyes concentration were varied to determine the optimum pH, kinetic and isotherm adsorption. Based on the calculation, the kinetic rate of the RBBR adsorbed onto AFOS was determined by k2 (pseudo second-order). Moreover, the isotherm study showed that the Langmuir model fitted for the adsorption of RBBR onto AFOS with Qm by 21.3 mg g-1.
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Harly, Aulia Yunicha, Lizabeth Sari Dewi, Hasan Basri, and Ratih Rosita. "Penilaian Tingkat Kesehatan Bank DKI Mengunakan Risk Based Bank Rating Ratio." J-MAS (Jurnal Manajemen dan Sains) 6, no. 2 (2021): 523. http://dx.doi.org/10.33087/jmas.v6i2.319.

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As one of the intermediation institutions and also a source of regional income, regional development banks (BPD) are currently faced with increasingly fierce competition. This study is titled assessment of the health level of bank DKI using RBBR ratio (Risk Based Bank Ratting) with the main focus in this study is to know and analyze the health level of regional development banks by using rbbr ratio as an assessment tool. The research method used is quantitative analysis that uses secondary data sourced from the bank's annual report in the period 2016 to 2020. The results of the study showed that the health level of DKI bank based on the overall RBBR Ratio showed good health performance in this study period. In 2016 the health assessment was good, in 2017 in 2018 in 2019 and in 2020.
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Oktaviani, Maulida, Nissa Nurfajrin Solihat, Yusup Amin, and Dede Heri Yuli Yanto. "Produksi Enzim Ligninolitik dan Dekolorisasi Pewarna Sintetis Oleh Isolat Baru Jamur Tropis Cymatoderma dendriticum WM01." Al-Kauniyah: Jurnal Biologi 14, no. 2 (2021): 282–93. http://dx.doi.org/10.15408/kauniyah.v14i2.17184.

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AbstrakPenggunaan pewarna sintetik pada berbagai industri telah menimbulkan pencemaran lingkungan. Jamur pelapuk putih (JPP) yang umumnya menghasilkan enzim ligninolitik dipercaya mampu mendegradasi senyawaan ini. Penelitian bertujuan untuk mengetahui kemampuan isolat baru JPP Cymatoderma dendriticum WM01 dalam memproduksi enzim ligninolitik dan mendekolorisasi pewarna sintetik. Skrining aktivitas enzim diukur berdasarkan pertumbuhan jamur pada media agar alkali-lignin, sedangkan aktivitas dekolorisasi diukur berdasarkan kemampuan jamur mendokolorisasi pewarna Remazol Brilliant Blue R (RBBR) pada medium agar. Kemampuan dekolorisasi dan aktivitas enzimatik jamur terhadap tiga jenis pewarna menggunakan media Dzapek-Dox cair yang masing-masing mengandung pewarna RBBR, Acid Blue 129 (AB129), dan Reactive Black 5 (RB5). Hasil penelitian menunjukkan pembentukan zona merah kecokelatan pada media alkali-lignin akibat adanya aktivitas degradasi lignin oleh jamur, sedangkan pemudaran warna pada media agar-RBBR menunjukkan kemampuan dekolorisasi jamur terhadap pewarna sistetis. C. dendriticum WM01 mendekolorisasi pewarna RBBR, AB129, dan RB5 dengan efisiensi masing-masing sebesar 22,6%, 81,9%, dan 12,1%. Selama proses dekolorisasi hanya enzim mangan peroksidase (0,3 U/L) yang dihasilkan oleh C. dendriticum WM01. Menariknya, penambahan ekstrak daun jati (50 mg/20 mL) mampu meningkatkan aktivitas enzim mangan peroksidase hingga 37,6 U/L dan lakase hingga 208,1 U/L. Penelitian ini menunjukkan bahwa isolat C. dendriticum WM01 berpotensi untuk digunakan pada dekolorisasi air limbah pewarna tekstil.Abstract The use of synthetic dyes in various industries caused environmental pollution. White-rot fungi, which generally produce ligninolytic enzymes, are believed to be able to degrade these recalcitrant compounds. This study aims to investigate the ability of the new isolate white-rot fungus Cymatoderma dendriticum WM01 to decolorize synthetic dyes. Screening of ligninolytic activity was based on fungal growth on alkali-lignin agar media, while decolorization activity was observed by the fungal ability to decolorize Remazol Brilliant Blue R (RBBR) dye in agar medium. The strain was tested to decolorize RBBR, Acid Blue 129 (AB129), and Reactive Black 5 (RB5) dyes in Dzapek-Dox broth media. The results showed the formation of a red-brownish area on alkali-lignin agar media, indicated degradation of lignin by strain WM01. The strain was able to decolorize RBBR, AB129, and RB5 dyes with efficiency of 22.6%, 81.9%, and 12.1%, respectively. During decolorization, only manganese peroxidase (0.3 U/L) was detected in culture medium. Interestingly, the addition of teak leaf extract (50 mg/20 mL) increased the activity of manganese peroxidase to 37.6 U/L and laccase to 208.1 U/L. This study suggests that C. dendriticum WM01 has the potential to be used in decolorization of textile dye wastewater.
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Danica Vahista Bernie and Azib. "Pengaruh Kinerja Keuangan Perbankan dengan Metode Rbbr (Risk-Based Bank Rating) terhadap Nilai Perusahaan." Bandung Conference Series: Business and Management 4, no. 1 (2024): 624–32. http://dx.doi.org/10.29313/bcsbm.v4i1.11545.

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Abstract. Banks are one that plays an important role in the economic progress of a country in the global system. Banks are used by almost all industries related to financial business, banks act as financial intermediaries between parties who have excess funds (surplus units) and those who have insufficient funds (deficit units). This research aims to find out how much influence financial performance using the RBBR method has on the value of banking companies in case studies of the largest domestic banks in 2022 in Indonesia. The method used in this research is associative research with a quantitative approach. The sample in this research was obtained using a purposive sampling method. The population data in this research was 8 companies and 8 companies were obtained as research samples. Based on the results of data analysis, it can be concluded that financial performance variables didn’t have an effect on company value, while the RBBR method has a positive effect on company value. The results of the model suitability test show that the company performance variables and the RBBR method significantly have a positive and significant effect on company value.
 Abstrak. Bank merupakan salah satu yang memainkan peranan penting untuk kemajuan ekonomi suatu negeri dalam sistem global. Bank digunakan oleh hampir semua industry yang berkaitan dengan bisnis keuangan, bank bertindak sebagai perantara keuangan (financial intermediary) antara pihak yang memiliki kelebihan dana (surplus unit) dengan yang memiliki kekurangan dana (deficit unit). Penelitian ini bertujuan untuk mengetahui seberapa pengaruh kinerja keuangan dengan metode RBBR terhadap nilai perusahaan perbankan studi kasus bank domestik terbesar tahun 2022 di Indonesia. Metode yang digunakan dalam penelitian ini yaitu peneitian asosiatif dengan pendekatan kuantitatif. Sample dalam penlitian ini diperoleh dengan metode purposive sampling. Data populasi dalam penlitian ini sebanyak 8 perusahaan dan diperoleh sebanyak 8 perusahaan sebagai sample penelitian. Berdasarkan hasil analisis data dapat disimpulkan bahwa variabel kinerja keuangan tidak berpengaruh terhadap nilai perusahaan, sedangkan metode RBBR berpengaruh positif terhadap nilai perusahaan. Hasil uji kesesuaian model menunjukkan bahwa secara signifikan variabel kinerja perusahaan dan metode RBBR berpengaruh positif dan signifikan terhadap nilai perusahaan.
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Silva, Liliane Andrade Sande da, Juliana Mota de Oliveira, Elizabeth Amélia Alves Duarte, Norma Suely Evangelista Barreto, and Márcia Luciana Cazetta. "Descoloração do corante Azul Brilhante de Remazol R por leveduras isoladas de moluscos do Rio Subaé, no estado da Bahia, Brasil." Engenharia Sanitaria e Ambiental 22, no. 6 (2017): 1065–74. http://dx.doi.org/10.1590/s1413-41522017157568.

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RESUMO Os objetivos deste trabalho foram estudar o potencial de descoloração do corante Azul Brilhante de Remazol R (RBBR) por cinco isolados de leveduras identificados como OJU2, SJL6, SF5, SJ10 e SJU5, otimizar as condições de crescimento das leveduras e verificar a toxicidade do produto obtido após a descoloração. Para isso, foram realizados ensaios em batelada variando os seguintes parâmetros: pH (2 a 8), concentração de glicose (0 a 3%), concentração do corante (25 a 100 ppm) e temperatura (20 a 40ºC). As leveduras mostraram capacidade de descolorir o RBBR com eficiência entre 80 e 93%, depois de 24 horas. A melhor condição para descoloração do RBBR ocorreu em pH ácido, 2% de glicose, 25 ppm do corante e 25ºC. Com os ensaios com Artemia salina, foi observado diminuição da toxicidade após tratamento com os isolados SJ10 e SJU5, depois de 120 horas de incubação.
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Moreira Neto, Sérgio Luiz, Dácio Roberto Matheus, and Kátia Maria Gomes Machado. "Influence of pH on the growth, laccase activity and RBBR decolorization by tropical basidiomycetes." Brazilian Archives of Biology and Technology 52, no. 5 (2009): 1075–82. http://dx.doi.org/10.1590/s1516-89132009000500003.

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The basidiomycete fungi Lentinus crinitus and Psilocybe castanella are being evaluated in a bioremediation process of soils contaminated with organochlorine industrial residues in the Baixada Santista, São Paulo. The aim of the present study was to determine the influence of pH on the fungal growth, in vitro decolorization of anthraquinonic dye Remazol Brilliant Blue R (RBBR) and laccase activity. The pH of the culture medium influenced the growth of L. crinitus and P. castanella, which presented less growth at pH 5.9 and pH 2.7, respectively. The fungi were able to modify the pH of the culture medium, adjusting it to the optimum pH for growth which was close to 4.5. Decolorization of the RBBR was maximal at a pH of 2.5 to 3.5. Higher laccase activity was observed at pH 3.5 and pH 4.5 for L. crinitus and P. castanella, respectively. pH was found to be an important parameter for both the growth of these fungi and the enzymatic system involved in RBBR decolorization.
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34

Abdul Aziz, Azia Wahida, Khairul Anuar Mat Amin, and Mohd Hasmizam Razali. "Manganese Substituted Iron Titanate Particles with Enhancement Adsorption Capacity for Removal of Remazol Brilliant Blue R Dye." Solid State Phenomena 273 (April 2018): 154–58. http://dx.doi.org/10.4028/www.scientific.net/ssp.273.154.

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Manganese substituted iron titanate was successfully synthesized and characterized by x-ray diffraction and Fourier transformed infra-red to investigate the composition and to identify the chemical compound of this unique architecture. The materials were tested for adsorption of remazol brilliant blue R (RBBR) aqueous solution. The adsorptions were investigated at different pH which are pH 3, 4, dye concentration and manganese substituted iron titanate dosage. It was found that synthesized manganese substituted iron titanate particles can adsorbed 99% of 100 ppm RBBR dye at pH 2.
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35

Suručić, Ljiljana, Deana Andrić, Ivana Jevtić, Milan Momčilović, Relja Suručić, and Jelena Penjišević. "Unmodified Hemp Biowaste as a Sustainable Biosorbent for Congo Red and Remazol Brilliant Blue R." Coatings 15, no. 5 (2025): 519. https://doi.org/10.3390/coatings15050519.

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Industrial hemp (Cannabis sativa L.) was investigated as a sustainable biosorbent for removing Congo Red (CR) and Remazol Brilliant Blue R (RBBR) from wastewater. The unmodified hemp biosorbent exhibited moderate but practically relevant sorption capacities (4.47 mg/g for CR; 2.44 mg/g for RBBR), outperforming several agricultural waste materials. Kinetic studies revealed rapid uptake, with CR following pseudo-first-order kinetics (t1/2 < 15 min) and RBBR fitting the Elovich model, indicating heterogeneous surface interactions. Equilibrium data showed CR adsorption was best described by the Temkin isotherm (R2 = 0.983), while RBBR followed the Langmuir model (R2 = 0.998), reflecting their distinct binding mechanisms. Thermodynamic analysis confirmed spontaneous (ΔG° < 0), exothermic (ΔH° ≈ −2 kJ/mol), and entropy-driven processes for both dyes. Molecular docking elucidated the structural basis for performance differences: CR’s stronger binding (−7.5 kcal/mol) involved weak noncovalent interaction arising from partial overlap between the π-electron cloud of an aromatic ring and σ-bonds C-C or C-H (π-σ stacking) and hydrogen bonds with cellulose, whereas RBBR’s weaker affinity (−5.4 kcal/mol) relied on weak intermolecular interaction between a hydrogen atom (from a C-H bond) and the π-electron system of an aromatic ring (C-H∙∙∙π interactions). This work establishes industrial hemp as an eco-friendly alternative for dye removal, combining renewable sourcing with multi-mechanism adsorption capabilities suitable for small-scale water treatment applications.
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Lohmeier, F. J., R. Francini, and U. M. Grassano. "Two-photon excitations ofAg−centers in RbBr." Physical Review B 38, no. 2 (1988): 1468–72. http://dx.doi.org/10.1103/physrevb.38.1468.

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37

Sathaiah, G., and Lalitha Sirdeshmukh. "Dielectric properties of RbCl-RbBr mixed crystals." Pramana 29, no. 3 (1987): 303–12. http://dx.doi.org/10.1007/bf02845737.

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38

Гаркушин, И. К., Е. И. Фролов та В. И. Сырова. "СИСТЕМА RBF-RBBR-RB2SO4, "Журнал неорганической химии"". Журнал неорганической химии, № 5 (2018): 640–44. http://dx.doi.org/10.7868/s0044457x18050173.

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39

Maes, F., P. Matthys, F. Callens, P. Moens, and E. Boesman. "EPR of S2-in RbCl and RbBr." Journal of Physics: Condensed Matter 4, no. 1 (1992): 249–56. http://dx.doi.org/10.1088/0953-8984/4/1/035.

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40

Rao, R. V. Gopala, and Ratna Das. "Structure factor computation of RbCl and RbBr." Physica Status Solidi (a) 110, no. 2 (1988): 347–57. http://dx.doi.org/10.1002/pssa.2211100205.

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Rodriguez, Julie P. G., David E. Williams, Isadora D. Sabater, et al. "The marine-derived fungus Tinctoporellus sp. CBMAI 1061 degrades the dye Remazol Brilliant Blue R producing anthraquinones and unique tremulane sesquiterpenes." RSC Advances 5, no. 81 (2015): 66360–66. http://dx.doi.org/10.1039/c5ra13580j.

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42

Hayumurti, Ardiani, and R. Gunawan Setianegara. "ANALISIS PENILAIAN TINGKAT KESEHATAN BANK DENGAN METODE RISK BASED BANK RATING PADA PT BANK DANAMON INDONESIA, Tbk PERIODE 2014-2017." KEUNIS 7, no. 2 (2019): 30. http://dx.doi.org/10.32497/keunis.v7i2.1583.

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<em>This research is conducted to identify the bank health rating of PT Bank Danamon Indonesia, Tbk one private bank in Indonesia in the period of 2014-2017 using the Risk Based Bank Rating (RBBR) method whether the bank is classified into one of the 5 categories: very healthy, healthy, healthy enough, not healthy enough, and unhealthy. Risk Based Bank Rating (RBBR) method is used to assess the health rating of bank based on 3 factors, i.e. Risk Profile, Earning, and Capital. This assessment with RBBR Method is done based on SEOJK Number14/SEOJK.03/2017 about the health assessment of conventional banks. The result of this research shows that: first, based on the credit risk aspect, the credit risk is low to moderate. Second, based on the liquidity risk aspect, the liquidity risk is healthy enough. Third, based on the remunerativeness seen by ROA and NIM ratio, the profitability is very adequate. Fourth, based on capital seen by KPMM or CAR ratio, the capital is very adequate</em>
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Indra, Gunawan, Deswita, Yulizar Yoki, and Puspa Melati Kandhi. "Removal of Remazol Brilliant Blue R (RBBR) by Absorbsion on Zeolit Cuo Catalyst." INTERNATIONAL JOURNAL OF MULTIDISCIPLINARY RESEARCH AND ANALYSIS 05, no. 07 (2022): 1730–36. https://doi.org/10.5281/zenodo.6844105.

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The pollution caused by dyestuffs has been a serious environmental problem for years. Within the overall category of dyestuffs, Remazol Brilliant Blue R (RBBR) is an anthraquinone dye used in textile industries. This paper concerns the study of the different experimental parameters which affect the decolorization efficiency of the RBBR mixture. Thermal degradation is done by carried out with 4 mL of 10 ppm RBBR solution into the reaction flask. Added a number of H2O2 and CuO zeolite catalyst. The reactor was heated in oil bath glycerin and stirred for 90 minutes. The optimum catalyst weight was obtained at 100 mg, which was able to decrease the reaction time 50 minutes compared to the reaction without catalyst. The percentage of dye removal on this catalyst loading was 96.26%. The micro pores of CuO zeolite is about 20 nm, which shows formation of nanoCuO particles in zeolite structure. This structural feature may be important since it increases the total surface area. The diffusion into such pores can explain the absorption capacity.
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Sari, Yetri Martika. "ANALISIS TINGKAT KESEHATAN BANK UMUM SYARIAH SEBELUM DAN SESUDAH TERDAFTAR DI BEI." I-Finance: a Research Journal on Islamic Finance 5, no. 1 (2019): 70–84. http://dx.doi.org/10.19109/ifinace.v5i1.3717.

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This study aims to assess the soundness of sharia commercial banks before and after being registere don the Indonesian stock exchange using the Risk-Based Bank Rating (RBBR) method which is stipulated in the OJK regulation No.8/POJK.03/2014 concerning the assessment of the soundness level of sharia commercial banks and sharia businessunits. The object of this research are sharia commercial banks registered on the Indonesian stock exchange (IDX). The sampling technique in this study used purposive sampling with the criteria of sharia commercial banks which was conducting an initial public offering in 2018. Two samples were obtained for this research, namely BRIS and BTPNS. The analytical techniques in this study were descriptive quantitative using four RBBR factors namely risk profile (NPF and FDR), GCG, profitability (NOM and ROA), andcapital (CAR). The resultsofthis study on the soundness of the bank before and after being listed on the IDX did not indicate a difference in the health rating of the banks both BRIS and BTPNS. the results of a comparison of the performance of BRIS and BTPNS seen from the four RBBR factors showed tha tBTPNS's performance was better than BRIS's performance.
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45

Hii, Hee Tian. "Adsorption Isotherm And Kinetic Models For Removal Of Methyl Orange And Remazol Brilliant Blue R By Coconut Shell Activated Carbon." Tropical Aquatic and Soil Pollution 1, no. 1 (2021): 1–10. http://dx.doi.org/10.53623/tasp.v1i1.4.

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Adsorption technology is one of the efficient and facile method used for wastewater treatment. In this research, coconut shell, an agricultural solid waste was converted into activated carbon via furnace induced and zinc chloride chemical activation techniques. The activated carbon was prepared at activation temperature of 600°C. Anionic dyes, Methyl Orange (MO) and Remazol Brilliant Blue R (RBBR) have been selected due to their harmful effect to the environmental and human. Various effect of parameter such as initial dye concentration, initial pH, adsorbent dosage and agitation speed in batch system were investigated to obtain the optimum condition for both dye adsorption on activated carbon. The optimum dye removal efficiency was around 99% when 5g/L of activated carbon was used. Pseudo-second-order model was the best fitted model with highest correlation compared to other kinetic models. The adsorption behaviour of MO was perfectly presented by the Freundlich model while RBBR was well described by Langmuir model. The maximum adsorption capacity for MO was 59.17mg/g and RBBR was 35.09mg/g. Fourier-transform infrared spectroscopy (FTIR) was utilised to analyse the chemical characteristics of activated carbon before and after adsorption.
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46

Afiya, Hamisu, Erkurt Emrah Ahmet, and M. Manjur Shah. "Enzymatic Decolorization of Remazol Brilliant Blue Royal (RB 19) textile dye by White Rot Fungi." Journal of Applied and Advanced Research 4, no. 1 (2019): 11. http://dx.doi.org/10.21839/jaar.2019.v4i1.260.

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Synthetic dyes are widely used by different industries with over 7 ×105 metric tons produce globally each year. Dyes pose adverse effects including chemical oxygen demand, visual pollution, cytotoxicity, genotoxicity, mutagenicity and carcinogenicity on various types of living organisms. The versatile white rot fungi (basidiomycetes fungi) have developed specialized ligninolytic enzymes for reductive cleavage of dyes and xenobiotics. The present study optimized the decolorization of Remazol brilliant blue royal (RBBR) dye by enzymatic extracts of Coriolus versicolor and Pleurotusostreatus. Experiments were carried out by varying one parameter i.e. pH (2.5-6.5), temperature (30oC-60oC), enzyme activity (3.3U-20U), dye concentration (10mg/L-125mg/L) and time (0-480mins), while others constant to study its effects on decolorization of RBBR. From the results obtained, the optimum conditions for decolorization of RBBR by extracts of C. versicolor and P. ostreatus were pH 4.0, temperature of 300C, enzyme activity 20U, dye concentrations of 100mg/L and 50mg/L for C. versicolor and P. ostreatus respectively at the end of 480 minutes. At the optimized conditions, decolorizations for C. versicolor and P. ostreatus were 80.42% and 70.42% respectively. Highest laccase activity (19.50U) was recorded in C. versicolor compare to P. ostreatus (1.41U).
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47

Elsa, Elsa. "ANALISIS RASIO KEUANGAN METODE RBBR DALAM MENGUKUR TINGKAT KESEHATAN BANK PADA BANK UMUM SYARIAH (BUS) PERIODE 2013-2020." JAAKFE UNTAN (Jurnal Audit dan Akuntansi Fakultas Ekonomi Universitas Tanjungpura) 12, no. 3 (2023): 250. http://dx.doi.org/10.26418/jaakfe.v12i3.69370.

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This research has a purpose that is: 1. To analyze tha bank’s health level with the financial ratio of the Risk Based Bank Rating (RBBR) method at the BUS period 2013-2020, 2. To determine the difference in the bank’s health level with the financial ratio of Risk Based Bank Rating (RBBR) method at the BUS period 2013-2020. This research uses comparative analysis methods. The classic assumptions used in this research are the normality tes, homogeneous test, while the difference test used the kruskal wallis test. The result of the analysis with the RBBR method indicate that BUS from 2013-2020 has a condition of the bank’s health level in a composite rating of 3 with a value of 64% which means healthy enough, while based on the calculation of different test, seven banks that are used as samples in this study there is a difference from the ratio of NPF, ROA,BOPO and CAR because they have a significant difference of < 0,05 while for the FDR ratio there is no difference from the seven banks because the significant value is > 0,05.
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48

Nobre, Francisco, Jairo Trindade, Marcus do Nascimento, et al. "Photocatalytic Properties of PbMoO4 Nanocrystals against Cationic and Anionic Dyes in Several Experimental Conditions." Colorants 2, no. 1 (2023): 111–34. http://dx.doi.org/10.3390/colorants2010008.

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This paper reports easy and fast synthesis of PbMoO4 nanocrystals by microwave-assisted hydrothermal (MH) method at different synthesis times (1, 10, 30 and 60 min) at 100 °C. X-ray diffraction, Rietveld refinement and Raman spectroscopy confirm all characteristics of diffraction peaks and active vibrational modes of the pure scheelite structure (tetragonal, I41/a) for all synthesized PbMoO4 nanocrystals. The optical bandgap calculated directly from the samples is close to 3.5 eV. The images collected by scanning electron microscopy show particles with mean length from 159.90(8) nm to 303.02(3) nm with greater exposure of planes (111), (100), (011) and (110). The photocatalytic activity of PbMoO4 nanocrystals against RhB and RBBR dyes resulted in successful degradation in short time intervals using ultraviolet light, where the best performance was achieved for the PbMoO4-10 sample, which was 29.2 and 51.8 times more effective than photolysis. The contribution of oxidant species was monitored by radical scavengers, which confirms that holes (h+) are the main oxidative species in photodegradation of RhB and RBBR dyes, while reuse of the catalyst against RhB and RBBR dyes confirms high stability of the catalyst, although recycled four times.
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49

Wulandari, Rika, Jumina, and Dwi Siswanta. "Adsorption of Remazol Brilliant Blue R (RBBR) by C-4-Ethoxy-3-Methoxyphenylcalix[4]Resorcinarene Triphenylphosphonium Chloride." Advanced Materials Research 1101 (April 2015): 290–93. http://dx.doi.org/10.4028/www.scientific.net/amr.1101.290.

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The adsorption of Remazol by CEMPCRP was studied as a function of pH, contact time and concentration. All experiments were carried out using the batch method. The initial and final RBBR concentration were determinated using UV-Vis spectrometer at λ = 592.3 nm. The result showed that the optimum condition of RBBR adsorption were at pH 10, contact time 360 min, and concentration of 300 mg/L. This adsorption followed the Lagergren (first pseudo order) and Langmuir isotherm adsorption model. The adsorption capacity was obtained 6.51 x 10-5 mol/L and the mechanism is a chemisorption (ΔG = 28.92 kJ/mol) that occurs in the monolayer.
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50

Lai, Hong Jian. "Adsorption of Remazol Brilliant Violet 5R (RBV-5R) and Remazol Brilliant Blue R (RBBR) from Aqueous Solution by Using Agriculture Waste." Tropical Aquatic and Soil Pollution 1, no. 1 (2021): 11–23. http://dx.doi.org/10.53623/tasp.v1i1.10.

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The ability of agricultural waste materials to remove synthetic dyes such as Remazol Brilliant Violet 5R (RBV-5R) and Remazol Brilliant Blue R (RBBR) from aqueous solutions was investigated. Dyes are a major source of water contamination that not only cause significant damage to water bodies but also have a negative effect on human health due to their high toxicity and carcinogenic nature. Agricultural wastes are renewable adsorbents because they are readily available and inexpensive, and they can also be used instead of conventional activated carbon. As a result, the removal of RBV-5R and RBBR from dye solutions by adsorption onto treated adsorbent was investigated in this review. The two best adsorbents out of ten were selected via a screening process with RBBR as the test dye. The key adsorbents in this analysis were coconut shells and mango seeds, which had the highest removal rate as compared to others. The experiment was continued with the chosen adsorbent to see how different initial dye concentrations, adsorbent dosage, contact time, pH, and particle size affected dye adsorption. The results show that different parameters have different effects on the removal rate and adsorption potential of the adsorbent. The adsorption of dye from aqueous solution onto adsorbent was investigated using Fourier transform infrared spectroscopy (FTIR) to investigate the functional groups of the adsorbent before and after the adsorption operation, and it was discovered that the functional group affected the effectiveness or removal rate as well as the adsorption capability of adsorbents. According to the findings, 5 gram mango seeds can extract 85.54 percent of RBV-5R with adsorption power of 1.26 mg/g. For 21 hours, coconut shells removed 74.39 percent of RBBR with an adsorption capacity of 8.01 mg/g. The findings indicated that these agricultural wastes could be useful as an alternative adsorbent for removing dye from aqueous solutions.
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