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PENURUNAN KADAR LIGNIN PADA SERAT PURUN TIKUS (Eloacharis dulcis) SEBAGAI SERAT ALAM MENGGUNAKAN LARUTAN ASAM SULFAT DAN SODA KAUSTIK
Jurnal Inovasi Teknik Kimia
Vol 10
, No 2
(2025)
Serat alam adalah material yang layak untuk digunakan sebagai pengganti serat sintetis, karena keterbaruan dan ketersedian bahan yang melimpah. Purun tikus mengandung lebih dari 30% selulosa sehingga berpotensi untuk digunakan sebagai sumber selulosa dalam berbagai aplikasi. Untuk memperoleh serat berkualitas, serat kasar yang mengandung banyak getah (gum) harus dibersihkan menggunakan larutan seperti NaOH dan H2SO4. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan larutan Asam Sulf...
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PEMBUATAN DAN KARAKTERISASI MEMBRAN ANORGANIK MIKROFILTRASI BERBAHAN BAKU AMPO
Jurnal Inovasi Teknik Kimia
Vol 10
, No 2
(2025)
Teknologi membran merupakan metode dalam proses pemisahan yang penting dalam industri. Membran anorganik lebih unggul dibanding dengan membran organik. Ampo adalah sejenis tanah liat yang bisa dipakai sebagai bahan baku karena memiliki unsur Si dan Al untuk pembuatan membran anorganik mikrofiltrasi. Tujuan penelitian ini adalah untuk mengetahui karakteristik membran dan pengaruh aditif serta suhu sintering terhadap karakteristik membran. Metode yang digunakan adalah metode sintering, dengan vari...
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PENGARUH KONSENTRASI PELARUT HCl PADA PROSES EKSTRAKSI PEKTIN DARI KULIT NANAS (Anas comosus L.Merr) MENGGUNAKAN MICROWAVE
Jurnal Inovasi Teknik Kimia
Vol 10
, No 2
(2025)
Nanas merupakan salah satu komoditas perkebunan yang mempunyai peranan penting bagi perekonomian nasional. Produksi nanas pada tahun 2024 di Kalimantan Timur mencapai 24.931 ton/tahun. Proses produksi nanas menghasilkan limbah berupa kulit nanas, yang salah satunya mengandung senyawa pektin yang dapat diambil menggunakan metode ekstraksi. Dalam industri pangan, pektin berperan sebagai bahan pokok pembuatan jeli, selai dan selai jeruk (marmalade). Pada industri farmasi, pektin digunakan sebagai a...
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Manfaat Corporate Social Responsibility Pada Perusahaan dan Masyarakat
Jurnal Ekonomi Bisnis dan Kewirausahaan
Vol 14
, No 1
(2025)
This study aims to examine the impact of Corporate Social Responsibility (CSR) based on social entrepreneurship on both companies and communities, with a focus on community empowerment and social well-being improvement. Using a qualitative approach with a literature review method, this research analyzes various literatures related to CSR, social entrepreneurship, and its impact on local economic empowerment. The results indicate that CSR based on social entrepreneurship provides long-term benefi...
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Qualitative Analysis of Physics Learning Problems in High School Based on Students' Intrinsic and Extrinsic Factors
Radiasi: Jurnal Berkala Pendidikan Fisika
Vol 18
, No 1
(2025)
This study aims to analyze the problems in Physics learning at SMAN 1 Punggur. This study is a qualitative research with a grounded theory design focusing on intrinsic and extrinsic factors that influence student understanding. The informants of the study were students and physics teachers at SMAN 1 Punggur. Intrinsic factors include motivation and interest in learning, students' initial abilities, conceptual difficulties, students' practical skills, understanding of abstract concepts, problem-s...
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Analisa Pengaruh Variasi Bevel Dan Penggunaan Backing Ceramic Terhadap Kekuatan dan Defect Material Baja Grade A Pengelasan Shield Metal Arc Welding (SMAW)
Jurnal Universal Technic (UNITECH)
Vol 4
, No 1
(2025)
Grade A steel plates are commonly used in marine and offshore structures due to their high corrosion resistance. This study investigates the effect of bevel angle variations (30°, 40°, and 50°) and the use of ceramic backing on the mechanical properties and welding defects of Grade A steel using the Shielded Metal Arc Welding (SMAW) method. Welding was conducted with four-pass multipass welding. An experimental approach was employed, including macro visual inspection, dye penetrant, tensile, and...
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UTILIZATION OF LIQUID ORGANIC FERTILIZER TO BREAK SEED DORMANCY AND GROWTH OF SUGAR APPLE (Annona squamosa L.) SAPLINGS
Bioma : Jurnal Ilmiah Biologi
Vol 14
, No 1
(2025)
Generative propagation of sugar apple has obstacles caused by the hard seed coat that inhibits the imbibition process and the seeds become dormant. Liquid organic fertilizer (LOF) can be used as a solution to break seed dormancy and the growth of sugar apple (Annona squamosa L.) seedlings. This study is conducted to determine the right concentration and soaking time of LOF, as well as to determine the effect of the interaction between concentration and soaking time of LOF for breaking seed dorma...
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ANALYSIS OF LEARNING PREFERENCES AND STYLES OF STUDENTS IN AGRIBUSINESS PLANT EDUCATION
Bioma : Jurnal Ilmiah Biologi
Vol 14
, No 1
(2025)
Agribusiness vocational education has a strategic role in preparing skilled workers who are able to compete in the world of work. This study aims to analyze the preferences and learning styles of students in the Food Crops and Horticulture Agribusiness program at SMK Negeri 1 Bawen. The research method used is quantitative descriptive with data collection through questionnaires and interviews. The main focus of this study includes preferences for learning methods, learning methods, enthusiasm le...
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Prokes rematri Web-based App: Development, Testing and Construct Validation of Content to Control Undernutrition at Female Teenager as Early Prevent Stunting in Life Cycle
Advance Sustainable Science, Engineering and Technology (ASSET)
Vol 7
, No 2
(2025)
Several measurements of female teenager undernutrition risk factors have been carried out, but the data are limited and not collected well. Technology approach needed to solve at this problem. This research was conducted to develop Prokes rematri web-based app and analysis CFA and EFA as construct validity. The variables and items as content of beta version were obtained from literature reviews and in-depth interviews who stake holder stunting program as subjects. In this study we limit the scie...
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ISOLATION OF AnsB GENE FRAGMENT ENCODING L-ASPARAGINASE 2 ENZYME FROM Serratia plymuthica UBCF_13 AND IT’S IN-SILICO DOMAIN CHARACTERISTIC
Ananda, Abi Awfa Rahman
; Nursyafi, Fauzan Syarif
; Aliya, Lisana Shidiqqin
; Hasibuan, Imron Martua
; Alioes, Yustini
; Endrinaldi , Endrinaldi
; Adrial, Adrial
; Elmatris , Elmatris
; Jamsari, Jamsari
; Lily Syukriani
Bioma : Jurnal Ilmiah Biologi
Vol 14
, No 1
(2025)
Acute lymphoblastic leukemia(ALL) is one of the cancer diseases often occurs in children and causes high mortality in children. One of the chemotherapy treatment suggested is using L-Asparaginase 2. However due to its difficult production process making this approach expensive for the public. Therefore production technology of this enzyme is crucial enabling cheaper for ALL treatment. This study aimed to isolate the AnsB gene sequence from Serratia plymuthica UBCF_13 and perform its further in-...
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