Showing 101 - 110 results of 110 for search '"bleach"', query time: 0.04s Refine Results
  1. 101

    Extraction of Cellulosic Compound from Jackfruit Peel Waste and Characterization of PVA Cellulose Composite as Biodegradable Film by Aquib Rahman, Shah Md Ashiquzzaman Nipu, Md Shamsul Alam, S. Sharar Alam, Md. Tanvir Ahmed, Anika Afroz Shantona, Mahjabin Moon

    Published 2024-01-01
    “…This study aims to extract cellulose from jackfruit (Artocarpus heterophyllus) peel by combining bleaching and alkaline treatment (17.5% w/v NaOH) and utilizes the extracted cellulosic compounds to produce a practical biodegradable film. …”
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  2. 102

    FT-IR Analysis of Beta vulgaris Peels and Pomace Dye Extracts and Surface Analysis of Optimally Dyed-Mordanted Cellulosic Fabrics by Vincent Rotich, Phanice Wangila, Jackson Cherutoi

    Published 2022-01-01
    “…The spectral analysis of bleached and optimally dyed (nonmordanted and mordanted) fabrics revealed varied peaks indicating different functional groups suggesting the presence of cellulose and the binding of mordants with chromophores in the dye extract which yield different shades. …”
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  3. 103

    Changes in the Flavor of Cold-Pressed Tiger Nut Oil (<i>Cyperus esculentus</i> L.) During Refining Processes and Evaluation of Its Thermal Properties by Yue Zhao, Yang Sun, Heyi Sun, Tianying Sun, Jian Ren, Chunli Song

    Published 2025-01-01
    “…Three different refining processes were evaluated: citric acid-assisted hydration degumming, alkali deacidification and bleaching. In the present study, the neutralization refining resulted in 11.67% losses. …”
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  4. 104
  5. 105

    Ponderações sobre o branqueamento em processos de restauração de papel: um panorama químico e teórico do procedimento by Luiza Batista Amaral, Camilla Henriques Maia de Camargos

    Published 2025-01-01
    “…A partir de tal levantamento crítico-metodológico, que contempla inclusive uma introdução aos fenômenos químicos fundamentais à ação do branqueamento sobre cromóforos-chave presentes na celulose amarelecida, faz-se uma exposição criteriosa dos prós e contras das operações em questão, cotejando o debate da teoria da restauração com a discussão feita por Irene Brückler e Ute Henniges em seu artigo sistemático Thoughts on bleaching guidelines. A proposta é contribuir para o debate acerca do branqueamento, também em língua portuguesa, munindo os conservadores-restauradores de informações sobre os principais critérios a serem considerados e os diversos métodos para a realização segura e racional do procedimento. …”
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  6. 106

    Impact of the unconventional extraction on antioxidants and antimicrobial characteristics of hibiscus and olive leaves extracts by Abdel-Aziz R.E. El-Hadary, Ayat M.A. Abulmakarm, A.M. Sulieman, Gehan A. El-Shorbagy, Alaa S. Mohamed

    Published 2025-01-01
    “…HPLC assay, scavenging radical activity by DPPH˙ (IC50), inhibition lipid peroxidation by both β-Carotene/Linoleic Acid Bleaching (βCB) and Thiobarbituric Acid Reactive Substances (TBARs) assays, antibacterial and antifungal activities measured for different concentrations of ethanolic extracts by conventional extraction (CE) and difference in pressure extraction (DPE) methods, and the results shown a considerable in mean difference (P < 0.05) between the mean values of all extracts of same raw material and also extraction methods, a positive effect for the extracts by DPE method. …”
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  7. 107

    Development of Sustainable Bioplastic Composite Films from Cocoa Pod Husk Waste Cellulose and Kappa-Carrageenan by Esa Ghanim Fadhallah, Ahmad Sapta Zuidar, Sri Hidayati, Haidawati Haidawati, Amarilia Harsanti Dameswary, Aisyah Tri Ramadhani

    Published 2024-12-01
    “…The cellulose was isolated through a delignification and bleaching process, while the bioplastics were prepared by varying the ratios of cellulose and kappa-carrageenan in six different formulations. …”
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  8. 108

    Phytochemical Profile and Antioxidant Activity of Nigella sativa L Growing in Morocco by Salima Tiji, Ouijdane Benayad, Mohamed Berrabah, Ibrahim El Mounsi, Mostafa Mimouni

    Published 2021-01-01
    “…Then, antioxidant activity was examined by β-carotene bleaching and DPPH radical scavenger tests. Results and Conclusion. …”
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  9. 109

    Evaluation of in-office tooth whitening treatment with violet LED: protocol for a randomised controlled clinical trial by Lara Jansiski Motta, Anna Carolina Ratto Tempestini Horliana, Sandra Kalil Bussadori, Maria Fernanda Setúbal Destro Rodrigues, Ana Eliza Castanho Garrini dos Santos, Marcelo Mendes Pinto, Dácio Antonio Pantano Junior, Aldo Brugnera Jr, Fátima Antonia Aparecida Zanin

    Published 2018-09-01
    “…Introduction In-office tooth whitening treatment using violet light emited diode (LED) (405 nm) is a novel bleaching method that causes less sensitivity while offering the same effectiveness as the gold standard (35% hydrogen peroxide, H2O2). …”
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  10. 110

    Isolation and characterization of CNC from waste maize cob available in Bangladesh as a potential candidate for the fabrication of multifunctional bio-nanocomposites: A new approac... by Shamim Dewan, Md. Mahmudur Rahman, Md. Ismail Hossain, Bijoy Chandra Ghos, M Mohinur Rahman Rabby, Md. Abdul Gafur, Md. Al-Amin, Md. Ashraful Alam

    Published 2025-01-01
    “…In this study a series of chemical treatment i.e. scouring (5% soap solution), alkali treatment (16% NaOH solution), bleaching (2% NaClO2 and 2% Na2S2O5 solution at pH = 4.0), acid hydrolysis (60% H2SO4) was conducted to isolate CNC from the waste maize cob. …”
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