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Szmechtyk T, Małecka M. Phytochemicals from Bark Extracts and Their Applicability in the Synthesis of Thermosetting Polymers: An Overview. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2123. [PMID: 38730929 PMCID: PMC11084627 DOI: 10.3390/ma17092123] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2024] [Revised: 04/09/2024] [Accepted: 04/19/2024] [Indexed: 05/13/2024]
Abstract
This review focuses on recent research on the phytochemicals found in bark from different trees and their potential to be used as substrates for the synthesis of thermosetting resins. Recent studies about the influence of each bark harvesting step on the extracted phytochemicals, from debarking to extraction, are investigated. A comparison of bark extracts in terms of the correlation between extraction conditions and efficiency (based on the total phenolic content (TPC) and extraction yield) is presented for six groups of trees (Norway spruce, pine species, other conifers, oak species, other deciduous trees of the north temperate zone, tropical and subtropical trees) and evaluated. The evaluation revealed that there is an interesting relationship between the extraction time and the type of solvent for some types of tree bark. It was found that a relatively short extraction time and a solvent temperature close to the boiling point are favourable. The latest research on the application of bark extracts in different types of thermosetting resins is described. This review discusses the attractiveness of bark extracts in terms of functional groups and the possibilities arising from extractable phytochemicals. In addition, different approaches (selective versus holistic) and methods of application are presented and compared.
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Affiliation(s)
- Tomasz Szmechtyk
- Department of Physical Chemistry, Faculty of Chemistry, University of Łódź, Pomorska 163/165, 90-236 Łódź, Poland;
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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] [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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Mangal M, H S, Bose S, Banerjee T. Innovations in applications and prospects of non-isocyanate polyurethane bioplastics. Biopolymers 2023; 114:e23568. [PMID: 37846654 DOI: 10.1002/bip.23568] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 09/22/2023] [Accepted: 09/28/2023] [Indexed: 10/18/2023]
Abstract
Currently, conventional plastics are necessary for a variety of aspects of modern daily life, including applications in the fields of healthcare, technology, and construction. However, they could also contain potentially hazardous compounds like isocyanates, whose degradation has a negative impact on both the environment and human health. Therefore, researchers are exploring alternatives to plastic which is sustainable and environmentally friendly without compromising its mechanical and physical features. This review study highlights the production of highly eco-friendly bioplastic as an efficient alternative to non-biodegradable conventional plastic. Bioplastics are produced from various renewable biomass sources such as plant debris, fatty acids, and oils. Poly-addition of di-isocyanates and polyols is a technique employed over decades to produce polyurethanes (PUs) bioplastics from renewable biomass feedstock. The toxicity of isocyanates is a major concern with the above-mentioned approach. Novel green synthetic approaches for polyurethanes without using isocyanates have been attracting greater interest in recent years to overcome the toxicity of isocyanate-containing raw materials. The polyaddition of cyclic carbonates (CCs) and polyfunctional amines appears to be the most promising method to obtain non-isocyanate polyurethanes (NIPUs). This method results in the creation of polymeric materials with distinctive and adaptable features with the elimination of harmful compounds. Consequently, non-isocyanate polyurethanes represent a new class of green polymeric materials. In this review study, we have discussed the possibility of creating novel NIPUs from renewable feedstocks in the context of the growing demand for efficient and ecologically friendly plastic products.
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Affiliation(s)
- Mangal Mangal
- Department of Chemical Engineering, Indian Institute of Technology, Guwahati, Assam, India
| | - Supriya H
- Department of Materials Engineering, Indian Institute of Science, Bengaluru, India
| | - Suryasarathi Bose
- Department of Materials Engineering, Indian Institute of Science, Bengaluru, India
| | - Tamal Banerjee
- Department of Chemical Engineering, Indian Institute of Technology, Guwahati, Assam, India
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Iswanto AH, Lubis MAR, Sutiawan J, Al-Edrus SSO, Lee SH, Antov P, Kristak L, Reh R, Mardawati E, Santoso A, Kusumah SS. Latest Advancements in the Development of High-Performance Lignin- and Tannin-Based Non-Isocyanate Polyurethane Adhesive for Wood Composites. Polymers (Basel) 2023; 15:3864. [PMID: 37835913 PMCID: PMC10575091 DOI: 10.3390/polym15193864] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 09/11/2023] [Accepted: 09/18/2023] [Indexed: 10/15/2023] Open
Abstract
The depletion of natural resources and increasing environmental apprehension regarding the reduction of harmful isocyanates employed in manufacturing polyurethanes (PUs) have generated significant attention from both industrial and academic sectors. This attention is focused on advancing bio-based non-isocyanate polyurethane (NIPU) resins as viable and sustainable substitutes, possessing satisfactory properties. This review presents a comprehensive analysis of the progress made in developing bio-based NIPU polymers for wood adhesive applications. The main aim of this paper is to conduct a comprehensive analysis of the latest advancements in the production of high-performance bio-based NIPU resins derived from lignin and tannin for wood composites. A comprehensive evaluation was conducted on scholarly publications retrieved from the Scopus database, encompassing the period from January 2010 to April 2023. In NIPU adhesive manufacturing, the exploration of substitute materials for isocyanates is imperative, due to their inherent toxicity, high cost, and limited availability. The process of demethylation and carbonation of lignin and tannin has the potential to produce polyphenolic compounds that possess hydroxyl and carbonyl functional groups. Bio-based NIPUs can be synthesized through the reaction involving diamine molecules. Previous studies have provided evidence indicating that NIPUs derived from lignin and tannin exhibit enhanced mechanical properties, decreased curing temperatures and shortened pressing durations, and are devoid of isocyanates. The characterization of NIPU adhesives based on lignin and tannin was conducted using various analytical techniques, including Fourier-transform infrared spectroscopy (FTIR), thermogravimetric analysis (TGA), matrix-assisted laser desorption/ionization with time-of-flight (MALDI-TOF) mass spectrometry, and gel permeation chromatography (GPC). The adhesive performance of tannin-based NIPU resins was shown to be superior to that of lignin-based NIPUs. This paper elucidates the potential of lignin and tannin as alternate sources for polyols in the manufacturing of NIPUs, specifically for their application as wood adhesives.
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Affiliation(s)
- Apri Heri Iswanto
- Department of Forest Product, Faculty of Forestry, Universitas Sumatera Utara, Medan 20155, Indonesia;
| | - Muhammad Adly Rahandi Lubis
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Cibinong 16911, Indonesia; (M.A.R.L.); (A.S.); (S.S.K.)
- Research Collaboration Center for Biomass and Biorefinery between BRIN and Universitas Padjadjaran, National Research and Innovation Agency, Bandung 40600, Indonesia;
| | - Jajang Sutiawan
- Department of Forest Product, Faculty of Forestry, Universitas Sumatera Utara, Medan 20155, Indonesia;
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Cibinong 16911, Indonesia; (M.A.R.L.); (A.S.); (S.S.K.)
| | | | - Seng Hua Lee
- Department of Wood Industry, Faculty of Applied Sciences, Universiti Teknologi MARA (UiTM), Kampus Jengka, Pahang 26400, Malaysia;
| | - Petar Antov
- Faculty of Forest Industry, University of Forestry, 1797 Sofia, Bulgaria;
| | - Lubos Kristak
- Faculty of Wood Sciences and Technology, Technical University in Zvolen, 96001 Zvolen, Slovakia; (L.K.); (R.R.)
| | - Roman Reh
- Faculty of Wood Sciences and Technology, Technical University in Zvolen, 96001 Zvolen, Slovakia; (L.K.); (R.R.)
| | - Efri Mardawati
- Research Collaboration Center for Biomass and Biorefinery between BRIN and Universitas Padjadjaran, National Research and Innovation Agency, Bandung 40600, Indonesia;
- Department of Agro-Industrial Technology, Universitas Padjadjaran, Jatinangor 40600, Indonesia
| | - Adi Santoso
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Cibinong 16911, Indonesia; (M.A.R.L.); (A.S.); (S.S.K.)
| | - Sukma Surya Kusumah
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Cibinong 16911, Indonesia; (M.A.R.L.); (A.S.); (S.S.K.)
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Raditya VYA, Lubis MAR, Sari RK, Antov P, Lee SH, Kristak L, Mardawati E, Iswanto AH. Properties of Ramie ( Boehmeria nivea (L.) Gaudich) Fibers Impregnated with Non-Isocyanate Polyurethane Resins Derived from Lignin. MATERIALS (BASEL, SWITZERLAND) 2023; 16:5704. [PMID: 37629995 PMCID: PMC10456696 DOI: 10.3390/ma16165704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/22/2023] [Revised: 08/08/2023] [Accepted: 08/17/2023] [Indexed: 08/27/2023]
Abstract
The textile industries need an alternative to cotton since its supply is unable to keep up with the growing global demand. The ramie (Boehmeria nivea (L.) Gaudich) fiber has a lot of potential as a renewable raw material but has low fire-resistance, which should be improved. In this work, the objectives were to investigate the characteristics of lignin derived from black liquor of kraft pulping, as well as the properties of the developed lignin-based non-isocyanate-polyurethane (L-NIPU), and to analyze ramie fiber before and after impregnation with L-NIPU. Two different formulations of L-NIPU were impregnated into ramie fiber for 30, 60, and 90 min at 25 × 2 °C under 50 kPa. The calculation of the Weight Percent Gain (WPG), Fourier Transform Infrared Spectrometer (FTIR), Rotational Rheometer, Dynamic Mechanical Analyzer (DMA), Pyrolysis Gas Chromatography Mass Spectrometer (Py-GCMS), Universal Testing Machine (UTM), and hydrolysis test were used to evaluate the properties of ramie fibers. The result showed that ramie fiber impregnated with L-NIPU produced higher mechanical property values and WPG than non-impregnated ramie fiber. There is a tendency that the longer impregnation time results in better WPG values, FTIR intensity of the urethane group, thermomechanical properties, crystallinity, and mechanical properties of ramie fiber. However, the use of DMC and HMT cannot replace the role of isocyanates in the synthesis of L-NIPU because it produces lower heat resistance than ramie impregnated using pMDI. Based on the results obtained, the impregnation of ramie fiber with L-NIPU represents a promising approach to increase its wider industrial application as a functional material.
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Affiliation(s)
- Vincentius Yolanda Angger Raditya
- Department of Forest Products, Faculty of Forestry and Environment, IPB University, Bogor 16680, Indonesia;
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Jakarta Pusat 16911, Indonesia
| | - Muhammad Adly Rahandi Lubis
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Jakarta Pusat 16911, Indonesia
- Research Collaboration Center for Biomass and Biorefinery between BRIN and Universitas Padjadjaran, Bandung 45363, Indonesia;
| | - Rita Kartika Sari
- Department of Forest Products, Faculty of Forestry and Environment, IPB University, Bogor 16680, Indonesia;
| | - Petar Antov
- Faculty of Forest Industry, University of Forestry, 1797 Sofia, Bulgaria;
| | - Seng Hua Lee
- Department of Wood Industry, Faculty of Applied Sciences, The MARA Technological University, Shah Alam 40450, Malaysia;
| | - Lubos Kristak
- Faculty of Wood Sciences and Technology, Technical University in Zvolen, 96001 Zvolen, Slovakia;
| | - Efri Mardawati
- Research Collaboration Center for Biomass and Biorefinery between BRIN and Universitas Padjadjaran, Bandung 45363, Indonesia;
- Department of Agro-Industrial Technology, Universitas Padjadjaran, Bandung 45363, Indonesia
| | - Apri Heri Iswanto
- Department of Forest Products Technology, Faculty of Forestry, Universitas Sumatera Utara, Kwala Bekala Campus, Medan 20355, Indonesia;
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Anggini AW, Lubis MAR, Sari RK, Papadopoulos AN, Antov P, Iswanto AH, Lee SH, Mardawati E, Kristak L, Juliana I. Cohesion and Adhesion Performance of Tannin-Glyoxal Adhesives at Different Formulations and Hardener Types for Bonding Particleboard Made of Areca ( Areca catechu) Leaf Sheath. Polymers (Basel) 2023; 15:3425. [PMID: 37631482 PMCID: PMC10458934 DOI: 10.3390/polym15163425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2023] [Revised: 08/08/2023] [Accepted: 08/10/2023] [Indexed: 08/27/2023] Open
Abstract
The use of alternative raw materials, such as agricultural biomass and by-products, in particleboard (PB) production is a viable approach to address the growing global demand for sustainable wood-based materials. The purpose of this study was to investigate the effect of the type of hardener and tannin-glyoxal (TG) adhesive formulation on the cohesion and adhesion performance of TG adhesives for areca-based PB. Two types of hardeners were used, NH4Cl and NaOH, and three adhesive formulations with tannin:glyoxal ratios (i.e., F1 (1:2), F2 (1:1), and F3 (2:1)) were applied to improve the cohesion performance and adhesion for areca-based TG adhesive for PB. The basic, chemical, and mechanical properties of the TG adhesive were investigated using a Fourier transform infrared spectrometer, rotational rheometer, dynamic mechanical analyzer (DMA), and X-ray diffractometer. The results show that a high glyoxal percentage increases the percentage of crystallinity in the adhesive. This shows that the increase in glyoxal is able to form better polymer bonds. DMA analysis shows that the adhesive is elastic and the use of NH4Cl hardener has better mechanical properties in thermodynamic changes than the adhesive using NaOH hardener. Finally, the adhesion performance of the TG adhesives on various types of hardeners and adhesive formulations was evaluated on areca-based PB panels. Regardless of the type of hardener, the TG adhesive made with F1 had better cohesion and adhesion properties compared to F2 and F3. Combining F1 with NH4Cl produced areca-based PB panels with better physical and mechanical qualities than the adhesive formulations F2 and F3, and complied with Type 8 particleboard according to SNI 03-2105-2006 standard.
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Affiliation(s)
- Awanda Wira Anggini
- Department of Forest Products, Faculty of Forestry and Environment, IPB University, Bogor 16680, Indonesia;
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Cibinong 16911, Indonesia
| | - Muhammad Adly Rahandi Lubis
- Research Center for Biomass and Bioproducts, National Research and Innovation Agency, Cibinong 16911, Indonesia
- Research Collaboration Center for Biomass and Biorefinery, BRIN and Universitas Padjadjaran, Jatinangor 45363, Indonesia;
| | - Rita Kartika Sari
- Department of Forest Products, Faculty of Forestry and Environment, IPB University, Bogor 16680, Indonesia;
| | - Antonios N. Papadopoulos
- Laboratory of Wood Chemistry and Technology, Department of Forestry and Natural Environment, International Hellenic University, GR-661 00 Drama, Greece;
| | - Petar Antov
- Faculty of Forest Industry, University of Forestry, 1797 Sofia, Bulgaria;
| | - Apri Heri Iswanto
- Department of Forest Products Technology, Faculty of Forestry, Universitas Sumatera Utara, Kwala Bekala Campus, Medan 20355, Indonesia;
| | - Seng Hua Lee
- Department of Wood Industry, Faculty of Applied Sciences, Universiti Teknologi MARA Pahang Branch Jengka Campus, Bandar Tun Razak 40450, Malaysia;
| | - Efri Mardawati
- Research Collaboration Center for Biomass and Biorefinery, BRIN and Universitas Padjadjaran, Jatinangor 45363, Indonesia;
- Department of Agro-Industrial Technology, Universitas Padjadjaran, Jatinangor 45363, Indonesia
| | - Lubos Kristak
- Faculty of Wood Sciences and Technology, Technical University in Zvolen, 96001 Zvolen, Slovakia;
| | - Ika Juliana
- PT. Greenie Alam Indonesia, Serpong, South Tangerang 15310, Indonesia;
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Wulandari AP, Awis VPD, Budiono R, Kusmoro J, Hidayat SS, Masruchin N, Lubis MAR, Fatriasari W, Rachmawati U. Tensile Strength Improvements of Ramie Fiber Threads through Combination of Citric Acid and Sodium Hypophosphite Cross-Linking. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4758. [PMID: 37445071 DOI: 10.3390/ma16134758] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 06/22/2023] [Accepted: 06/26/2023] [Indexed: 07/15/2023]
Abstract
Ramie (Boehmeria nivea) is believed to be one of the strongest natural fibers, but it still remains behind synthetic materials in terms of tensile strength. In this study, ramie materials were prepared to evaluate the modification crosslinking effect of natural fiber. The aim is to optimize various concentrations of citric acid (CA) crosslinking by adding Sodium hypophosphite (NaPO2H2), which is activated at different temperatures, to obtain the highest tensile mechanical strength. This crosslinking effect has been confirmed by FTIR to show the esterification process in the molecular structure of cellulose. The changes in the character of the fiber surface were analyzed by SEM. The tensile strength increased from 62.33 MPa for 0% CA to 124-172.86 MPa for decorticated fiber with a CA concentration of 0.75-1.875% (w/w). A significant increase in tensile strength was observed more than 19 times when CA/SHP 1% was treated at an activation temperature of 110 °C with a superior tensile strength of 1290.63. The fiber crosslinked with CA/SHP should be recommended for application of Natural Fiber Reinforced Polymer Composite (NFRPC), which has the potential to use in functional textile and industrial sector automotive or construction.
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Affiliation(s)
- Asri Peni Wulandari
- Department of Biology, Faculty of Mathematics and Natural Science, Universitas Padjadjaran, Sumedang 45363, Indonesia
- Center for Study of Bioprospection of Natural Fiber and Bioresources, Faculty of Mathematics and Natural Science, Universitas Padjadjaran, Bandung 40132, Indonesia
| | - Vira Putri Dinda Awis
- Department of Biology, Faculty of Mathematics and Natural Science, Universitas Padjadjaran, Sumedang 45363, Indonesia
| | - Ruly Budiono
- Department of Biology, Faculty of Mathematics and Natural Science, Universitas Padjadjaran, Sumedang 45363, Indonesia
- Center for Study of Bioprospection of Natural Fiber and Bioresources, Faculty of Mathematics and Natural Science, Universitas Padjadjaran, Bandung 40132, Indonesia
| | - Joko Kusmoro
- Department of Biology, Faculty of Mathematics and Natural Science, Universitas Padjadjaran, Sumedang 45363, Indonesia
- Center for Study of Bioprospection of Natural Fiber and Bioresources, Faculty of Mathematics and Natural Science, Universitas Padjadjaran, Bandung 40132, Indonesia
| | - Sidiq Syamsul Hidayat
- Program for Study of Telecommunications Engineering, Electrical Engineering Major, Faculty of Engineering, Politeknik Negeri Semarang, Semarang 50275, Indonesia
| | - Nanang Masruchin
- Research Center for Biomass and Bioproduct, National Research and Innovation Agency, Bogor 16911, Indonesia
| | | | - Widya Fatriasari
- Research Center for Biomass and Bioproduct, National Research and Innovation Agency, Bogor 16911, Indonesia
| | - Ulyaa Rachmawati
- Department of Biology, Faculty of Mathematics and Natural Science, Universitas Padjadjaran, Sumedang 45363, Indonesia
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