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Ismayati M, Fatah NAN, Ernawati EE, Juliandri, Kusumaningrum WB, Lubis MAR, Fatriasari W, Solihat NN, Sari FP, Halim A, Cholilie IA, Tobimatsu Y. Antioxidant and UV-blocking activity of PVA/tannin-based bioplastics in food packaging application. Int J Biol Macromol 2024; 257:128332. [PMID: 38043664 DOI: 10.1016/j.ijbiomac.2023.128332] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 09/29/2023] [Accepted: 11/17/2023] [Indexed: 12/05/2023]
Abstract
In this study, bioplastics with antioxidant and UV protection properties based on tannin and PVA were created for packaging uses. Using a hot water extraction method at various extraction temperatures (60-100 °C), tannins were removed from the bark of Acacia mangium. Tannins with the best antioxidant activity were extracted at 80 °C. In order to create bioplastic formulations (PVA/Tannins), the extract is then employed. The non-heating bioplastic method's preparation (M3) stage produced the highest levels of antioxidant activity. Therefore, subsequent tests were conducted using the non-heating method (M3). On the opacity, UV protective activity, antioxidant capacity, mechanical strength, thermal stability, and water vapor permeability of the resultant bioplastics, the impact of tannin concentration (0.1-0.5 g) was examined. The findings of the experiments demonstrate that PVA/Tannin bioplastics are less transparent than pure PVA. The PVA/tannin bioplastics that are formed, on the whole, show strong antioxidant and UV protection action. Comparing PVA/Tannin bioplastics to pure PVA also revealed a small improvement in thermal stability and tensile strength. In PVA bioplastics with resistant tannins, moisture content was marginally greater even at low tannin concentrations (0.1 g). Based on the findings, bioplastics made from PVA and the tannin A. mangium have the potential to be used to create packaging that is UV and active antioxidant resistant. It can be applied as the second (inner) layer of the primary packaging to protect food freshness and nutrition due to their antioxidant activity.
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Affiliation(s)
- Maya Ismayati
- Research Center for Biomass and Bioproducts, Research Organization for Life Sciences and Environment, National Research and Innovation Agency (BRIN), Jl. Raya Bogor KM 46, Cibinong Bogor, Jawa Barat 16911, Indonesia.
| | - Netha Amelia Nur Fatah
- Physical Chemistry Laboratory, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang, Indonesia
| | - Engela Evy Ernawati
- Physical Chemistry Laboratory, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang, Indonesia
| | - Juliandri
- Physical Chemistry Laboratory, Department of Chemistry, Faculty of Mathematics and Natural Sciences, Universitas Padjadjaran, Jl. Raya Bandung-Sumedang, Indonesia
| | - Wida Banar Kusumaningrum
- Research Center for Biomass and Bioproducts, Research Organization for Life Sciences and Environment, National Research and Innovation Agency (BRIN), Jl. Raya Bogor KM 46, Cibinong Bogor, Jawa Barat 16911, Indonesia
| | - Muhammad Adly R Lubis
- Research Center for Biomass and Bioproducts, Research Organization for Life Sciences and Environment, National Research and Innovation Agency (BRIN), Jl. Raya Bogor KM 46, Cibinong Bogor, Jawa Barat 16911, Indonesia
| | - Widya Fatriasari
- Research Center for Biomass and Bioproducts, Research Organization for Life Sciences and Environment, National Research and Innovation Agency (BRIN), Jl. Raya Bogor KM 46, Cibinong Bogor, Jawa Barat 16911, Indonesia
| | - Nissa Nurfajrin Solihat
- Research Center for Biomass and Bioproducts, Research Organization for Life Sciences and Environment, National Research and Innovation Agency (BRIN), Jl. Raya Bogor KM 46, Cibinong Bogor, Jawa Barat 16911, Indonesia
| | - Fahriya Puspita Sari
- Research Center for Biomass and Bioproducts, Research Organization for Life Sciences and Environment, National Research and Innovation Agency (BRIN), Jl. Raya Bogor KM 46, Cibinong Bogor, Jawa Barat 16911, Indonesia
| | - Abdul Halim
- Department of Chemical Engineering, Universitas Internasional Semen Indonesia, Gresik 61122, Indonesia
| | - Irvan Adhin Cholilie
- Department of Agro-Industrial Technology, Universitas Internasional Semen Indonesia, Gresik 61122, Indonesia
| | - Yuki Tobimatsu
- Research Institute for Sustainable Humanosphere, Kyoto University, Uji, Kyoto 611-0011, Japan
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Dewi KR, Ismayati M, Solihat NN, Yuliana ND, Kusnandar F, Riantana H, Heryani H, Halim A, Acter T, Uddin N, Kim S. Advances and key considerations of liquid chromatography–mass spectrometry for porcine authentication in halal analysis. J Anal Sci Technol 2023. [DOI: 10.1186/s40543-023-00376-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023] Open
Abstract
AbstractThe halal food industries are rapidly expanding to fulfill global halal demands. Non-halal substances such as porcine proteins are often added intentionally or unintentionally to products. The development of highly selective and sensitive analytical tools is necessary, and liquid chromatography–mass spectrometry is a powerful tool that can cope with the challenge. The LC–MS method has great potential for halal authentication, because it has high sensitivity and low detection limit and detects several species markers and different tissue origins at once within one species. This article provides an understanding of recent advances in the application of LC–MS for the improvement of porcine authentication. Sample preparation, marker selection, separation and mass spectrometry conditions, quantitative assessment, and data processing for protein identification were all covered in detail to choose the most suitable method for the analytical needs.
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Alam R, Mahmood RA, Islam S, Ardiati FC, Solihat NN, Alam MB, Lee SH, Yanto DHY, Kim S. Understanding the biodegradation pathways of azo dyes by immobilized white-rot fungus, Trametes hirsuta D7, using UPLC-PDA-FTICR MS supported by in silico simulations and toxicity assessment. Chemosphere 2023; 313:137505. [PMID: 36509189 DOI: 10.1016/j.chemosphere.2022.137505] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 10/13/2022] [Accepted: 12/06/2022] [Indexed: 06/17/2023]
Abstract
No biodegradation methods are absolute in the treatment of all textile dyes, which leads to structure-dependent degradation. In this study, biodegradation of three azo dyes, reactive black 5 (RB5), acid blue 113 (AB113), and acid orange 7 (AO7), was investigated using an immobilized fungus, Trametes hirsuta D7. The degraded metabolites were identified using UPLC-PDA-FTICR MS and the biodegradation pathway followed was proposed. RB5 (92%) and AB113 (97%) were effectively degraded, whereas only 30% of AO7 was degraded. Molecular docking simulations were performed to determine the reason behind the poor degradation of AO7. Weak binding affinity, deficiency in H-bonding interactions, and the absence of interactions between the azo (-NN-) group and active residues of the model laccase enzyme were responsible for the low degradation efficiency of AO7. Furthermore, cytotoxicity and genotoxicity assays confirmed that the fungus-treated dye produced non-toxic metabolites. The observations of this study will be useful for understanding and further improving enzymatic dye biodegradation.
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Affiliation(s)
- Rafiqul Alam
- Department of Chemistry, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Raisul Awal Mahmood
- Department of Chemistry, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Syful Islam
- Department of Chemistry, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Fenny Clara Ardiati
- Research Center for Applied Microbiology, National Research and Innovation Agency (BRIN), Bogor, 16911, Indonesia
| | - Nissa Nurfajrin Solihat
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency (BRIN), Bogor, 16911, Indonesia
| | - Md Badrul Alam
- Department of Food Science and Biotechnology, Graduate School, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Sang Han Lee
- Department of Food Science and Biotechnology, Graduate School, Kyungpook National University, Daegu, 41566, Republic of Korea
| | - Dede Heri Yuli Yanto
- Research Center for Applied Microbiology, National Research and Innovation Agency (BRIN), Bogor, 16911, Indonesia; Research Collaboration Center for Marine Biomaterials, Jatinangor, 45360, Indonesia.
| | - Sunghwan Kim
- Department of Chemistry, Kyungpook National University, Daegu, 41566, Republic of Korea; Mass Spectrometry Converging Research Center and Green-Nano Materials Research Center, Daegu, 41566, Republic of Korea.
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Yanto DHY, Anita SH, Solihat NN. Enzymatic degradation and metabolic pathway of acid blue 129 dye by crude laccase from newly isolated Trametes hirsuta EDN 082. BIOCATAL BIOTRANSFOR 2022. [DOI: 10.1080/10242422.2022.2138360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Dede Heri Yuli Yanto
- Research Center for Applied Microbiology, National Research and Innovation Agency (BRIN), Bogor, Indonesia
- Research Collaboration Center for Marine Biomaterials, Jatinangor, Indonesia
| | - Sita Heris Anita
- Research Center for Applied Microbiology, National Research and Innovation Agency (BRIN), Bogor, Indonesia
| | - Nissa Nurfajrin Solihat
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency (BRIN), Bogor, Indonesia
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Solihat NN, Son S, Williams EK, Ricker MC, Plante AF, Kim S. Assessment of artificial neural network to identify compositional differences in ultrahigh-resolution mass spectra acquired from coal mine affected soils. Talanta 2022; 248:123623. [PMID: 35660996 DOI: 10.1016/j.talanta.2022.123623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/24/2022] [Accepted: 05/26/2022] [Indexed: 11/26/2022]
Abstract
This study assessed the applicability of artificial neural networks (ANNs) as a tool to identify compounds contributing to compositional differences in coal-contaminated soils. An artificial neural network model was constructed from laser desorption ionization ultrahigh-resolution mass spectra obtained from coal contaminated soils. A good correlation (R2 = 1.00 for model and R2 = 0.99 for test) was observed between the measured and predicted values, thus validating the constructed model. To identify chemicals contributing to the coal contents of the soils, the weight values of the constructed model were evaluated. Condensed hydrocarbon and low oxygen containing compounds were found to have larger weight values and hence they were the main contributors to the coal contents of soils. In contrast, compounds identified as lignin did not contribute to the coal contents of soils. These findings were consistent with the conventional knowledge on coal and results from the conventional partial least square method. Therefore, we concluded that the weight interpretation following ANN analysis presented herein can be used to identify compounds that contribute to the compositional differences of natural organic matter (NOM) samples.
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Affiliation(s)
- Nissa Nurfajrin Solihat
- Research Center for Biomaterials, National Research and Innovation Agency (BRIN), Cibinong, 16911, Indonesia
| | - Seungwoo Son
- Department of Chemistry, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea
| | | | | | | | - Sunghwan Kim
- Department of Chemistry, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu, 41566, Republic of Korea; Mass Spectrometry Convergence Research Center and Green-Nano Materials Research Center, Daegu, 41566, Republic of Korea.
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Solihat NN, Santoso EB, Karimah A, Madyaratri EW, Sari FP, Falah F, Iswanto AH, Ismayati M, Lubis MAR, Fatriasari W, Antov P, Savov V, Gajtanska M, Syafii W. Physical and Chemical Properties of Acacia mangium Lignin Isolated from Pulp Mill Byproduct for Potential Application in Wood Composites. Polymers (Basel) 2022; 14:491. [PMID: 35160483 PMCID: PMC8840075 DOI: 10.3390/polym14030491] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Revised: 01/22/2022] [Accepted: 01/24/2022] [Indexed: 02/06/2023] Open
Abstract
The efficient isolation process and understanding of lignin properties are essential to determine key features and insights for more effective lignin valorization as a renewable feedstock for the production of bio-based chemicals including wood adhesives. This study successfully used dilute acid precipitation to recover lignin from black liquor (BL) through a single-step and ethanol-fractionated-step, with a lignin recovery of ~35% and ~16%, respectively. The physical characteristics of lignin, i.e., its morphological structure, were evaluated by scanning electron microscopy (SEM). The chemical properties of the isolated lignin were characterized using comprehensive analytical techniques such as chemical composition, solubility test, morphological structure, Fourier-transform infrared spectroscopy (FTIR), 1H and 13C Nuclear Magnetic Resonance (NMR), elucidation structure by pyrolysis-gas chromatography-mass spectroscopy (Py-GCMS), and gel permeation chromatography (GPC). The fingerprint analysis by FTIR detected the unique peaks corresponding to lignin, such as C=C and C-O in aromatic rings, but no significant differences in the fingerprint result between both lignin. The 1H and 13C NMR showed unique signals related to functional groups in lignin molecules such as methoxy, aromatic protons, aldehyde, and carboxylic acid. The lower insoluble acid content of lignin derived from fractionated-step (69.94%) than single-step (77.45%) correlated to lignin yield, total phenolic content, solubility, thermal stability, and molecular distribution. It contradicted the syringyl/guaiacyl (S/G) units' ratio where ethanol fractionation slightly increased syringyl unit content, increasing the S/G ratio. Hence, the fractionation step affected more rupture and pores on the lignin morphological surface than the ethanol-fractionated step. The interrelationships between these chemical and physicochemical as well as different isolation methods were investigated. The results obtained could enhance the wider industrial application of lignin in manufacturing wood-based composites with improved properties and lower environmental impact.
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Affiliation(s)
- Nissa Nurfajrin Solihat
- Research Center for Biomaterials, Research and Innovation Agency (BRIN), Jl. Raya Bogor KM 46, Cibinong 16911, Indonesia; (A.K.); (F.P.S.); (F.F.); (M.I.); (M.A.R.L.)
| | - Eko Budi Santoso
- Department of Forest Products, Faculty of Forestry and Environment, IPB University, Bogor 16680, Indonesia; (E.B.S.); (E.W.M.); (W.S.)
| | - Azizatul Karimah
- Research Center for Biomaterials, Research and Innovation Agency (BRIN), Jl. Raya Bogor KM 46, Cibinong 16911, Indonesia; (A.K.); (F.P.S.); (F.F.); (M.I.); (M.A.R.L.)
- Department of Forest Products, Faculty of Forestry and Environment, IPB University, Bogor 16680, Indonesia; (E.B.S.); (E.W.M.); (W.S.)
| | - Elvara Windra Madyaratri
- Department of Forest Products, Faculty of Forestry and Environment, IPB University, Bogor 16680, Indonesia; (E.B.S.); (E.W.M.); (W.S.)
| | - Fahriya Puspita Sari
- Research Center for Biomaterials, Research and Innovation Agency (BRIN), Jl. Raya Bogor KM 46, Cibinong 16911, Indonesia; (A.K.); (F.P.S.); (F.F.); (M.I.); (M.A.R.L.)
| | - Faizatul Falah
- Research Center for Biomaterials, Research and Innovation Agency (BRIN), Jl. Raya Bogor KM 46, Cibinong 16911, Indonesia; (A.K.); (F.P.S.); (F.F.); (M.I.); (M.A.R.L.)
| | - Apri Heri Iswanto
- Department of Forest Product, Faculty of Forestry, Universitas Sumatera Utara, Medan 20155, Indonesia;
- JATI-Sumatran Forestry Analysis Study Center, Jl. Tridharma Ujung No. 1, Kampus USU, Medan 20155, Indonesia
| | - Maya Ismayati
- Research Center for Biomaterials, Research and Innovation Agency (BRIN), Jl. Raya Bogor KM 46, Cibinong 16911, Indonesia; (A.K.); (F.P.S.); (F.F.); (M.I.); (M.A.R.L.)
| | - Muhammad Adly Rahandi Lubis
- Research Center for Biomaterials, Research and Innovation Agency (BRIN), Jl. Raya Bogor KM 46, Cibinong 16911, Indonesia; (A.K.); (F.P.S.); (F.F.); (M.I.); (M.A.R.L.)
| | - Widya Fatriasari
- Research Center for Biomaterials, Research and Innovation Agency (BRIN), Jl. Raya Bogor KM 46, Cibinong 16911, Indonesia; (A.K.); (F.P.S.); (F.F.); (M.I.); (M.A.R.L.)
| | - Petar Antov
- Faculty of Forest Industry, University of Forestry, 1797 Sofia, Bulgaria; (P.A.); (V.S.)
| | - Viktor Savov
- Faculty of Forest Industry, University of Forestry, 1797 Sofia, Bulgaria; (P.A.); (V.S.)
| | - Milada Gajtanska
- Faculty of Wood Sciences and Technology, Technical University in Zvolen, 96001 Zvolen, Slovakia
| | - Wasrin Syafii
- Department of Forest Products, Faculty of Forestry and Environment, IPB University, Bogor 16680, Indonesia; (E.B.S.); (E.W.M.); (W.S.)
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Alam R, Ardiati FC, Solihat NN, Alam MB, Lee SH, Yanto DHY, Watanabe T, Kim S. Biodegradation and metabolic pathway of anthraquinone dyes by Trametes hirsuta D7 immobilized in light expanded clay aggregate and cytotoxicity assessment. J Hazard Mater 2021; 405:124176. [PMID: 33131941 DOI: 10.1016/j.jhazmat.2020.124176] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2020] [Revised: 09/14/2020] [Accepted: 10/01/2020] [Indexed: 06/11/2023]
Abstract
Biodegradation and metabolic pathways of three anthraquinone dyes, Reactive Blue 4 (RB4), Remazol Brilliant Blue - R (RBBR), and Acid Blue 129 (AB129) by Trametes hirsuta D7 fungus immobilized in light expanded clay aggregate (LECA) were investigated. Morphological characteristics observed with scanning electron microscope (SEM) showed successful immobilization of the fungus in LECA. Based on UV absorbance measurement, immobilized T. hirsuta D7 effectively degraded 90%, 95%, and 96% of RB4, RBBR and AB129, respectively. Metabolites were identified with high-resolution mass spectrometry (HRMS) and degradation pathway of the dyes by T. hirsuta D7 was proposed. Toxicity assay on human dermal fibroblast (HDF) showed that anthraquinone dyes exhibits significant toxicity of 35%, 40%, and 34% reduction of cell viability by RB4, RBBR, and AB129, respectively. Fungal treatment resulted in an abatement of the toxicity and cell viability was increased up to 94%. The data clearly showed the effectiveness of immobilized T. hirsuta D7 in LECA on detoxification of anthraquinone dyes. This study provides potential and fundamental understanding of wastewater treatment using the newly isolated fungus T. hirsuta D7.
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Affiliation(s)
- Rafiqul Alam
- Department of Chemistry, Kyungpook National University, 41566, Republic of Korea
| | - Fenny Clara Ardiati
- Research Center for Biomaterials, Indonesian Institute of Sciences (LIPI), Cibinong 16911, Republic of Indonesia
| | - Nissa Nurfajrin Solihat
- Research Center for Biomaterials, Indonesian Institute of Sciences (LIPI), Cibinong 16911, Republic of Indonesia
| | - Md Badrul Alam
- Department of Food Science and Biotechnology, Graduate School, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Sang Han Lee
- Department of Food Science and Biotechnology, Graduate School, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Dede Heri Yuli Yanto
- Research Center for Biomaterials, Indonesian Institute of Sciences (LIPI), Cibinong 16911, Republic of Indonesia.
| | - Takashi Watanabe
- Research Institute for Sustainable Humanosphere, Kyoto University, Kyoto 611-0011, Japan
| | - Sunghwan Kim
- Department of Chemistry, Kyungpook National University, 41566, Republic of Korea; Mass Spectrometry Converging Research Center and Green-Nano Materials Research Center, Daegu 41566, Republic of Korea.
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Cho E, Solihat NN, Kim YH, Kim S. Comprehensive Lists of Internal Calibrants for Ultrahigh-Resolution Mass Spectrometry Analysis of Crude Oil and Natural Organic Matter and Their Preparation Recipes. J Am Soc Mass Spectrom 2021; 32:590-596. [PMID: 33426888 DOI: 10.1021/jasms.0c00456] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
In this work, comprehensive lists of internal calibrants for accurate mass determination of molecules in crude oils, natural organic matter, and soil as well as their preparation recipes are presented. The lists include various sets of chemicals for positive- and negative-ion mode electrospray ionization, atmospheric pressure chemical ionization, atmospheric pressure photoionization, and laser desorption ionization. The chemicals were chosen based on their solvent compatibility, ionization efficiency, and accessibility. The sample preparation process was optimized for each ionization method and type of sample. The lists include detailed information on preparation solvent, concentrations, and mixing ratios of sample and calibrants. Internal calibration using the information in the lists results in successful calibration, and all the data presented in this study show root-mean-square errors between the theoretical and obtained m/z numbers of less than 0.4 ppm. The information presented in this study provides an important guideline for researchers working on complex mixtures with ultrahigh-resolution mass spectrometry.
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Affiliation(s)
- Eunji Cho
- Mass Spectrometry Based Convergence Research Institute, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea
| | - Nissa Nurfajrin Solihat
- Research Center for Biomaterials, Indonesian Institute of Sciences (LIPI), Cibinong 16911, Indonesia
| | - Young Hwan Kim
- Center for Research Equipment, Korea Basic Science Institute, 162 Yeongudanji-ro, Ochang-eup, Cheongju-si, Chungcheongbuk-do 28119, Republic of Korea
- Graduate School of Analytical Science and Technology, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea
| | - Sunghwan Kim
- Mass Spectrometry Based Convergence Research Institute, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea
- Department of Chemistry, Kyungpook National University, 80 Daehak-ro, Buk-gu, Daegu 41566, Republic of Korea
- Green-Nano Materials Research Center, Daegu 41566, Republic of Korea
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Acter T, Solihat NN, Kim S, Uddin N, Mustafa AI, Shamsuddin SM, Kim S. Application of silver-assisted laser desorption ionization ultrahigh-resolution mass spectrometry for the speciation of sulfur compounds. Anal Bioanal Chem 2019; 412:243-255. [DOI: 10.1007/s00216-019-02272-5] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2019] [Revised: 10/31/2019] [Accepted: 11/08/2019] [Indexed: 01/06/2023]
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Solihat NN, Yustiawati, Kim S, Kim S. Elucidating molecular level impact of peat fire on soil organic matter by laser desorption ionization Fourier transform ion cyclotron resonance mass spectrometry. Anal Bioanal Chem 2019; 411:7303-7313. [DOI: 10.1007/s00216-019-02108-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 08/13/2019] [Accepted: 08/29/2019] [Indexed: 01/31/2023]
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Ahmed A, Islam S, Solihat NN, Acter T, Kim S. Systematic Investigation into the Differences in the (+) APPI Efficiencies of Positional (Ortho, Meta, and Para) Isomers. B KOREAN CHEM SOC 2019. [DOI: 10.1002/bkcs.11869] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Arif Ahmed
- Department of ChemistryKyungpook National University Daegu 41566 Republic of Korea
| | - Syful Islam
- Department of ChemistryKyungpook National University Daegu 41566 Republic of Korea
| | - Nissa Nurfajrin Solihat
- Department of ChemistryKyungpook National University Daegu 41566 Republic of Korea
- Research Center for BiomaterialsIndonesian Institute of Sciences (LIPI) Cibinong 16911 Indonesia
| | - Thamina Acter
- Department of Mathematical and Physical SciencesEast West University Dhaka 1212 Bangladesh
| | - Sunghwan Kim
- Department of ChemistryKyungpook National University Daegu 41566 Republic of Korea
- Green‐Nano Materials Research Center Daegu 41566 Republic of Korea
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Solihat NN, Acter T, Kim D, Plante AF, Kim S. Analyzing Solid-Phase Natural Organic Matter Using Laser Desorption Ionization Ultrahigh Resolution Mass Spectrometry. Anal Chem 2018; 91:951-957. [DOI: 10.1021/acs.analchem.8b04032] [Citation(s) in RCA: 30] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Nissa Nurfajrin Solihat
- Department of Chemistry, Kyungpook National University, Daegu 41566, Republic of Korea
- Research Center for Biomaterials, Indonesian Institute of Sciences (LIPI), Cibinong 16911, Indonesia
| | - Thamina Acter
- Department of Chemistry, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Donghwi Kim
- Department of Chemistry, Kyungpook National University, Daegu 41566, Republic of Korea
| | - Alain F. Plante
- University of Pennsylvania, 240 South 33rd Street, Philadelphia, Pennsylvania 19104, United States
| | - Sunghwan Kim
- Department of Chemistry, Kyungpook National University, Daegu 41566, Republic of Korea
- Green-Nano Materials Research Center, Daegu 41566, Republic of Korea
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