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All Journal Jurnal Ilmu Pertanian Indonesia VALENSI agriTECH KOVALEN: Jurnal Riset Kimia Science and Technology Indonesia Indonesian Journal of Chemistry Jurnal Perikanan Universitas Gadjah Mada Indonesian Journal of Applied Research (IJAR) Jurnal Pijar MIPA Makara Journal of Science Journal of Pharmaceutical and Sciences. Halal Studies and Society
Noviyan Darmawan
Department Of Chemistry, Bogor Agricultural University, Jl. Agatis, Kampus IPB Darmaga, Bogor 16680
Religion Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Economics, Econometrics & Finance Environmental Science Immunology & microbiology Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences

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Amino Acids Isolation from α-keratin of Javanese Goat (Capra hircus) Hair and Garut Sheep (Ovis aries) Hair Waste Using Acid Hydrolysis Method as BCAA Supplement Firdaus, Dzikri Anfasa; Andrianto, Dimas; Darmawan, Noviyan
Jurnal Kimia Valensi Jurnal Kimia VALENSI, Volume 10, No. 1, May 2024
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v10i1.38146

Abstract

Javanese goat and Garut sheep hair contain α-keratin, a protein that can be broken by hydrolysis to produce simpler amino acids. Feather waste generates millions of tons of α-keratin biomass originating from animal slaughterhouses, thereby raising health concerns. The utilization of acid hydrolysis is considered to be more cost-effective compared to enzymatic hydrolysis, and it provides a broader range of amino acid cleavage sites compared to enzymes, which exhibit specific cleavage. This study aimed to isolate amino acids from Javanese goat and Garut sheep hair through acid hydrolysis. The methods included hair sample preparation, acid hydrolysis used 6 M HCL at 110°C, reflux isolation, amino acid separation based on isoelectric pH 4.9 –5.4, functional groups analysis using FTIR, and analysis of amino acid content by HPLC methods. The results showed that the yield produced after isolation on Javanese goat hair samples was 0.92% and Garut sheep hair 0.32%, respectively. The FTIR spectrum showed amino acid functional groups in both samples, including carboxyl (COOH), amine (C-N primer), (C-S disulfide), and amide I (-CONH2). Successful breakdown of α-keratin proteins into simpler amino acids was achieved for Javanese goat and Garut sheep hair. Amino acid analysis of Javanese goat hair isolates revealed the presence of aspartic acid, threonine, serine, glutamate, proline, glycine, alanine, valine, methionine, isoleucine, leucine, tyrosine, phenylalanine, histidine, lysine, and arginine amino acids, respectively. The highest content was isoleucine at 0.60% w/w. In conclusion, the isolated amino acids from Javanese goat hair can be used as a halal supplement that serves as nutrition in the body.
Synthesis of Green Diesel from Palm Oil Using Nickel-based Catalyst: A Review Aziz, Isalmi; Sugita, Purwantiningsih; Darmawan, Noviyan; Dwiatmoko, Adid Adep
Jurnal Kimia Valensi Jurnal Kimia VALENSI Volume 9, No. 1, May 2023
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v9i1.26488

Abstract

Petroleum is the primary energy that is generally used throughout the world. Its non-renewable nature and exhaust gas emissions that can damage the environment are a concern for developing environmentally friendly renewable energy. Green diesel is an alternative energy to replace diesel fuel (diesel) from petroleum which has the potential to be developed. The raw material in palm oil has great potential for development due to its relatively high production. Green diesel synthesis can be carried out using the catalytic deoxygenation method. The type of raw material, catalyst, and process conditions influences this method. The catalyst is the most influential factor in catalytic deoxygenation. Transition metal catalysts like nickel are inexpensive and have good catalytic activity like precious metals. Catalytic activity can be increased by modifying the catalyst components and optimizing the process. Modification of the catalyst can increase the surface area, Lewis and Bronsted sites, and crystal size so that the resulting green diesel can be maximized, such as Ni-Co, Ni-Zn, and Ni-Mo bimetallic catalysts.
Application of PAN/α-Fe2O3-Bentonite as A Photocatalytic Membrane for The Photodegradation of Methylene Blue Sitompul, Dina Wardani; Kemala, Tetty; Darmawan, Noviyan
Jurnal Kimia Valensi Jurnal Kimia VALENSI Volume 9, No. 1, May 2023
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v9i1.28635

Abstract

The intricate molecular structure of the dyes in wastewater makes it difficult to biodegrade, which could harm the environment. Currently, semiconductor-based photocatalytic methods are being developed to remove dyes from water. In this study, the α-Fe2O3-bentonite photocatalyst was synthesized by mechanical milling and immobilized in polyacrylonitrile (PAN) membrane by phase inversion. Analysis of the composition and surface morphology of the synthesized samples was carried out by FTIR, XRD, and EDX. The performance of the photocatalytic membrane was studied by investigating the removal of methylene blue (MB). Photocatalytic membrane with 2% α-Fe2O3-bentonite had the best performance in removing MB (10 ppm) that reached 99.84% at pH 11.5 with an irradiation time of 300 minutes under direct sunlight. The reuse cycle of the photocatalytic membrane was also carried out and the results showed that there is no significant change in the photodegradation efficiency after 3 cycles. Photocatalyst immobilization on PAN membranes is proven to overcome the post-recovery problem of photocatalysts and making easier to reuse. The photocatalyst membrane synthesized in this study can be used as an alternative for removing dyes from water.
Fluorine Substitution in Diamine Covalent Organic Frameworks: Computational Analysis of CO2/N2 Adsorption and Permeability Darmawan, Noviyan; Apriliyanto, Yusuf Bramastya; Jati, Andreas Ary Chrisna; Kusumawardani, Cahyorini
Science and Technology Indonesia Vol. 10 No. 1 (2025): January
Publisher : Research Center of Inorganic Materials and Coordination Complexes, FMIPA Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/sti.2025.10.1.18-26

Abstract

In this study, we investigated the effect of fluorine substitution on a previously reported diamine based covalent organic framework (COF), designated as IPB-2H. A new fluorinated analogue namely IPB-2F2 was modeled and its adsorption and permeability characteristics for CO2/N2 gas mixtures were evaluated through computational analysis. Ab initio structural optimization results showed that the reduced pore size of IPB-2F2 compared to IPB-2H was attributed to the larger atomic size and higher electronegativity of fluorine compared to hydrogen atom. Molecular dynamics (MD) simulations demonstrated that IPB-2F2 exhibited lower permeation rates for CO2 and N2 than its non fluorinated counterpart; indicating that fluorine atoms effectively reduced gas permeation. Adsorption isotherms revealed enhanced adsorption capacities for IPB-2F2, with increased CO2 affinity resulting from strong van der Waals interactions. Selectivity analyses showed that IPB-2F2 preferentially absorbed CO2 over N2, with selectivity values consistently greater than 1. The enhanced gas uptake capacity and hydrophobicity of IPB-2F2 highlighted its potential for industrial applications as a post-combustion CO2 capture material.
Porcine, bovine, and mixed gelatin identification using SPME-GC-MS and chemometrics Darmawan, Noviyan; Sari , Intan Dias; Rudhatin, Fayca; Pranata, Agy Wirabudi; Supratikno; Yuliana, Nancy Dewi
Halal Studies and Society Vol. 1 No. 3 (2024): September 2024
Publisher : IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/hass.1.3.15-19

Abstract

Gelatin is a versatile raw material extensively used in the food, cosmetics, and pharmaceutical industries. It is produced globally by partially hydrolyzing collagen derived from pigs and cows, leading to religious and ethical concerns among various communities. Therefore, this study aimed to explore alternative methods to distinguish porcine, bovine, and mixed gelatin by analyzing the unique profiles of their total volatile compounds. The volatilomics method integrated solid-phase microextraction gas chromatography-mass spectrometry (SPME-GC-MS) with chemometrics. The results showed that principal component analysis (PCA) of the volatile compounds from gelatin powder had clear classification among porcine, bovine, and mixed gelatin, suggesting the discrimination ability of the method. Furthermore, partial least squares discriminant analysis (PLS-DA) identified distinct marker compounds that significantly contributed to the classification of each gelatin type. The marker compounds for porcine gelatin included 2-decen-1-ol, 2-dodecenal, cyclohexane 1-butenylidene, decane 3,6-dimethyl, cyclohexanone 2-propyl, borinic acid, 3-tetradecyn-1-ol, 2-tridecene, 5,5-dimethyl-1,3-dioxan-2-one, and 2-n-butyl furan. For bovine gelatin, the marker compounds were 2-heptanone 3-methyl, nonane 5-butyl, tridecane 6-methyl, 1-hexacosanol, nonane 3-methyl-5-propyl, undecane 3-methyl, octane 4-methyl, 2,4-undecadienol, and 1-hexadecanol 2-methyl.
Challenges and opportunities for workforce skills in halal agri-food sector to meet global market demands through Halalink application Indriani, Mutiara Rachmina; Arrahman, Naufal; Dini, Vianda Mayeri; Rahmawati, Yuli; Darmawan, Noviyan
Halal Studies and Society Vol. 2 No. 1 (2025): January 2025
Publisher : IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/hass.2.1.11-13

Abstract

Indonesia is the largest Muslim-majority country in the world and holds significant potential in halal food farming sector. The growing global demand for halal products offers vast opportunities to expand agricultural exports and meet the needs of both domestic and international markets. However, challenges such as a lack of skilled human resources, limited awareness of halal certification processes, and technological barriers, particularly among micro, small, and medium enterprises (MSMEs), hinder the industry growth. Therefore, this study aimed to develop "Halalink," an innovative mobile application designed to address challenges by promoting halal education, collaboration, and compliance with standards. Halalink has three features including (i) Halalearns, with educational content about halal standards, (ii) Halalabs for collaboration among stakeholders, and (iii) Halalassists, which offers continuous guidance to ensure compliance with halal regulations. In conclusion, Halalink is a sustainable solution to enhance public awareness, simplify halal certification process, as well as build a competitive and ethical halal agri-food sector in Indonesia.
Rice strategy: Improving sustainable halal agri-food system through green marketing and shifting consumer behavior with a quintuple helix approach Dwiyani, Dewa Ayu Made Safira; Sanneh, Kally; Murheza, Kevin; Khairani, Najwa Azka; Lubis, Rifaldy Setiawan; Darmawan, Noviyan
Halal Studies and Society Vol. 2 No. 1 (2025): January 2025
Publisher : IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/hass.2.1.8-10

Abstract

This study aimed to examine the role of RICE strategy (Reinforcement, Influence, Collaboration, and Evolution) in enhancing the sustainability of halal agri-food systems through green marketing and shifting consumer behavior. The significance of halal certification and the growing demand for sustainable food products was examined in the context of Indonesia predominantly Muslim population. The methodology combined a literature review and case study analysis to explore the contributions of various stakeholders including government, academia, industry, civil society, and the environment toward improving halal food production systems. Technological integration, including blockchain, IoT, Lean Knowledge Management (LKM), and digital technologies, were examined as methods for optimizing halal food supply chains and ensuring sustainability. The results showed that key challenges in implementing green marketing, include supply chain inefficiencies, lack of infrastructure, and limited adoption of eco-friendly technologies by MSMEs. In conclusion, this study emphasized the importance of a collaborative approach to overcome obstacles and enhance the global competitiveness of Indonesia halal food industry, while also promoting environmental responsibility and consumer awareness.
Volatile Markers of Chicken, Beef, and Pork Satay for Species Authentication Indrasti, Dias; Mukhlisin, Muhammad Faqih; Darmawan, Noviyan; Yuliana, Nancy Dewi
Indonesian Journal of Applied Research (IJAR) Vol. 6 No. 1 (2025): Indonesian Journal of Applied Research (IJAR)
Publisher : Universitas Djuanda

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30997/ijar.v6i1.601

Abstract

Satay is a popular dish in Indonesia. It is made from several pieces of meat skewered with bamboo sticks and then grilled over an open flame. Each type of satay meat has a distinct aroma due to its unique volatile component content. Volatilomics is a method that can be utilized to ensure the authenticity of meat products through the detection, characterization, and quantification of all easily vaporizing metabolites in a biological system. No research in Indonesia has previously applied volatilomics to differentiate meat species in satay. This study aimed to identify the volatile compound components in chicken, beef, pork, and mixed pork-containing satay, as well as determined the biomarker compounds for each type of satay meat by volatilomics approach. The volatile components in satay were extracted using the solid-phase microextraction (SPME) and analysed by gas chromatography-mass spectrometry (GC-MS). The data were processed using multivariate data analysis. Each type of satay meat exhibited good separation with the multivariate model. Beef and chicken satay were distinctly separated, whereas samples of pork and mixed pork-containing satay were positioned closely together. The hexadecanal, nonanoic acid, and ethylbenzene showed the strongest correlation in beef satay, whereas in chicken satay, the indicative compounds were benzaldehyde; 2,3,5-trimethyl-6-ethylpyrazine; and 2-nonenal, (E)-. The marker compounds for pork and mixed pork-containing satay were heptanal; 2-methylthiophene; and cyclooctene. The analysis using SPME-GC-MS successfully separated volatile compounds among the satay meats and determined the compounds contributing most strongly to the separation.
Comparing Three Methods for Producing Carbon Dots from Mangosteen Peel Sugiarti, Sri; Safitri, Idayu; Darmawan, Noviyan
Jurnal Pijar Mipa Vol. 19 No. 2 (2024): March 2024
Publisher : Department of Mathematics and Science Education, Faculty of Teacher Training and Education, University of Mataram. Jurnal Pijar MIPA colaborates with Perkumpulan Pendidik IPA Indonesia Wilayah Nusa Tenggara Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jpm.v19i2.4986

Abstract

Carbon dots are fluorescent nanoparticles that are around 10 nm in size. Carbon dots can be formed via pyrolysis, hydrothermal, and solvothermal procedures from raw materials such as mangosteen peels. Because it contains cyanidin and xanthone, which improve the intensity of carbon dot fluorescence, mangosteen peel waste can be utilized to make carbon dots. The presence of a urea passivation agent is expected to boost carbon dot luminescence intensity. The study aimed to develop carbon dots from mangosteen peel using three different methods: pyrolysis, hydrothermal, and solvothermal, and to assess their ability to produce luminous hues. Carbon dot yield was 21% by the solvothermal method, 5% by the hydrothermal method, and 2% by pyrolysis. All three methods produced blue carbon dot luminescence. The solvothermal method, hydrothermal procedure, and pyrolysis had the highest luminescence intensity. Adding urea as a passivation agent increased the luminescence of carbon dots. The solvothermal approach produced the highest carbon dot production and fluorescence intensity. The hydrothermal and solvothermal carbon dots made emissions at wavelengths of 413 nm and 454 nm, respectively, both corresponding to blue luminescence.
Formulasi hand cream antibakteri berbasis kitosan dan ekstrak daun putri malu (Mimosa pudica L.) Fendy, Fendy; Suryawan, Chinesia Prastialin; Fadila, Rina Fitriana; M.Saad, Nabilatul Rafi’ah; Mubayyinah, Hamidatul; Darmawan, Noviyan
Journal of Pharmaceutical and Sciences JPS Volume 8 Nomor 1 (2025)
Publisher : Fakultas Farmasi Universitas Tjut Nyak Dhien

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36490/journal-jps.com.v8i1.576

Abstract

CoronaVirus Disease 2019 is a respiratory disease caused by Severe Acute Respiratory Syndrome CoronaVirus 2 (SARS-CoV-2) which is transmitted through the air and droplets of fluid. One of the health protocols recommended by the World Health Organization (WHO) is washing hands. Hand-washing activities have limitations because not all places provide them, so the alternative that has been circulating in the community is hand sanitiser. However, the alcohol content and synthetic antibacterials cause dry and irritated skin. The purpose of this study was to create an antibacterial hand cream from putri malu leaf as a utilization of wild plants. Putri malu leaf extract and chitosan were made in the form of nanoparticles, and then an evaluation of the physical characteristics of the hand cream preparation was carried out in the form of pH, organoleptic, homogeneity, and stability observed for 14 days. The antibacterial activity of putri malu leaf extract and hand cream was tested against S. aureus and E. coli. The particle size obtained was 1529.5 ± 42.5 nm. The results of the physical characteristics obtained were pH 6.15; dark orange, odourless, stable at room temperature, and high homogeneity. Antibacterial testing of putri malu leaf extract against S. aureus produced an inhibition zone of 10.27 mm at a concentration of 25% and antibacterial hand cream produced inhibition zones of 23.18 mm and 12.22 mm with an extract concentration of 10% so both are classified as strong antibacterials that are effective against S. aureus and E. coli bacteria.
Co-Authors Ali, Mohamad Makrus Ani Suryani Suryani Arrahman, Naufal Bella Fitri Rahmantika Cahyorini Kusumawardani Cece Sumantri Dedri Syafei Dedy Duryadi Solihin Dias Indrasti DIMAS ANDRIANTO Dini, Vianda Mayeri Dwiatmoko, Adid Adep Dwiyani, Dewa Ayu Made Safira Fadila, Rina Fitriana Faradisa Anindita Fendy, Fendy Firdaus, Dzikri Anfasa Gina, Safira Ida Ayu Putu Sri Widnyani Indriani, Mutiara Rachmina Irma Herawati Suparto Isalmi Aziz Jati, Andreas Ary Chrisna Khairani, Najwa Azka Lilis Sulistiawaty Lubis, Rifaldy Setiawan M.Saad, Nabilatul Rafi’ah Mala Nurilmala Mas’ud, Zainal Alim Mohammad Khotib Mubayyinah, Hamidatul Muh Tazri Nasirullah Muhammad Faqih Mukhlisin Mukhlisin, Muhammad Faqih Murheza, Kevin Nancy Dewi Yuliana Pranata, Agy Wirabudi Purwantiningsih Sugita Rahmagiarti, Cintera Rudhatin, Fayca Safitri, Idayu Sanneh, Kally Sari , Intan Dias Sitompul, Dina Wardani Sri Sugiarti Supratikno Suryawan, Chinesia Prastialin TATI NURHAYATI Tetty Kemala Tun Tedja Irawadi Ummah, Isna Mustafiatul Yuli Rahmawati Yuni Cahya Endrawati Yusuf Bramastya Apriliyanto Zainal Alim Mas'ud