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All Journal Biopropal Industri Mimbar Agribisnis: Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis Jurnal Bioteknologi & Biosains Indonesia (JBBI) Indonesian of Health Information Management Journal (INOHIM) Jurnal Material dan Energi Indonesia Bulletin of Chemical Reaction Engineering & Catalysis Journal of Innovation in Teaching and Instructional Media Iftitiah: Jurnal Ilmiah Pendidikan Islam Anak Usia Dini
Yati Maryati
Research Center for Chemistry
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Energy Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Neuroscience Nursing Other

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SEPARATION OF FERMENTED INULIN FIBER BY Lactobacillus acidophillus USING Aspergillus clavatus-CBS5 THROUGH MICROFILTRATION MEMBRANE - (PEMISAHAN SERAT INULIN TERFERMENTASI OLEH L. acidophillus MENGGUNAKAN A.. clavatus-CBS5 MELALUI MIKROFILTRASI MEMBRAN) Aspiyanto, Aspiyanto; Susilowati, Agustine; Maryati, Yati; Melanie, Hakiki
Biopropal Industri Vol 8, No 2 (2017)
Publisher : Balai Riset dan Standardisasi Industri Pontianak

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (153.759 KB)

Abstract

The condition of Stirred Filtration Cell (SFC) was used as reference to a large-scale process conditions (modules) on the separation offermented inulin fibers by Lactobacillus acidophillus. Inulin hydrolyzate as biomass was produced  from inulinase hydrolysis stage by inulinase enzyme from Aspergillus clavatus-CBS5. Separation of inulinfiber aims to obtain inulin fiber through a microfiltration (MF) membrane 0.45 μm at room temperature, 400 rpm stirrer cycle and 40 psia for 0, 30, 60, 90 and 120 min. The results showed that best separation time was 120 minutes based on optimal CBC (cholesterol binding capacity) which fermented inulin fiber concentrate was produced with a total sugar concentration of 105.21 mg/mL, total solids 2.11%, total fiber 23.36%, total acid 6.66% (dry weight), 4.05 mg of dissolved protein/mL and CBC 13.781 mg/g. MF membrane increased the CBC by 23.4% compared to no separation process.Keywords: cholesterol binding capacity, inulin fiber, microfiltration membrane, permeate, retentateABSTRAKKondisi Sel Filtrasi Berpengaduk (SFB) digunakan sebagai acuan menuju kondisi proses skala besar (modul) terhadap pemisahan serat inulin terfermentasi oleh Lactobacillus acidophillus. Hidrolisat inulin yang digunakan sebagai biomassa dihasilkan dari tahapan hidrolisa inulin oleh enzim inulinase dari kapang Aspergillus clavatus-CBS5. Pemisahan serat inulin bertujuan untuk mendapatkan serat inulin melalui membran mikrofiltrasi (MF) 0,45 µm pada temperatur ruang, kecepatan putaran pengaduk 400 rpm dan tekanan 40 psia selama 0, 30, 60, 90 dan 120 menit. Hasil penelitian menunjukkan bahwa waktu pemisahan yang lama dapat menahan dan meningkatkan padatan total, serat total, asam total, protein terlarut dan kemampuan pengikat kolesterol (KPK) tetapi menurunkan gula total dalam retentat. Membran mikrofiltrasi melewatkan dan menurunkan gula total, protein terlarut dan KPK tetapi meningkatkan padatan total, serat total, asam total dalam permeat. Berdasarkan KPK optimal, waktu pemisahan terbaik dicapai setelah 120 menit. Pada kondisi ini dihasilkan konsentrat serat inulin terfermentasi dengan konsentrasi gula total 105,21 mg/mL, padatan total 2,11%, serat total 23,36%, asam total 6,66% (berat kering), protein terlarut 4,05 mg/mL dan KPK 13,781 mg/g. Membran MF mampu meningkatkan KPK 23,4% dibandingkan tanpa  menggunakan proses pemisahan.Kata kunci:          kemampuan pengikat kolesterol, membran mikrofiltrasi, permeat, retentat, serat inulin
PENGARUH WAKTU FERMENTASI TERHADAP AKTIVITAS ANTIOKSIDAN DAN KADAR BETASIANIN MINUMAN FUNGSIONAL DARI BUAH NAGA (Hylocereus polyrhizus) DAN UMBI BIT (Beta vulgaris) Maryati, Yati; Susilowati, Agustine; Artanti, Nina; Lotulung, Puspa Dewi Narij; Aspiyanto, Aspiyanto
Jurnal Bioteknologi & Biosains Indonesia (JBBI) Vol. 7 No. 1 (2020): June 2020
Publisher : Balai Bioteknologi, Badan Pengkajian dan Penerapan Teknologi (BPPT)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (716.82 KB) | DOI: 10.29122/jbbi.v7i1.3732

Abstract

Effect of Fermentation on Antioxidant Activities and Betacyanin Content of Functional Beverages from Dragon Fruit and BeetrootKombucha is a traditional beverage prepared by fermenting polyphenol-rich tea using a consortium of bacteria and yeast (SCOBY). Dragon fruit and beetroot contain a significantly high amount of polyphenols and betacyanin as antioxidants which are beneficial in reducing the risk of cardiovascular disease, cancer, and the body's natural degeneration related to the early-aging process. This study aims to determine changes in antioxidant activity and levels of betacyanin from fermented dragon fruit and beetroot as functional drinks during different fermentation times. The results showed that there was a correlation between fermentation time and antioxidant activity in its ability to counteract free radicals, ferric reducing antioxidant power (FRAP), and the levels of betacyanin produced. Longer fermentation time caused an increase in free radical inhibition and reduction of iron ions but reduced the levels of betacyanin. The optimum value of free radical inhibitory activity (DPPH) was obtained in the 12-day fermented dragon fruit drink with an inhibitory value of 80.76%, ability to reduce iron ions by 197.94 µg ascorbic acid mL-1, and betacyanin level of 0.055 mg L-1Keywords: antioxidants, dragon fruit, betacyanin, beetroot, functional beverages ABSTRAKKombucha merupakan minuman tradisional hasil olahan fermentasi teh yang kaya polifenol dengan konsorsium bakteri dan yeast (SCOBY). Buah naga dan umbi bit memiliki polifenol dan senyawa betasianin yang cukup tinggi sebagai antioksidan yang bermanfaat dalam menurunkan risiko penyakit kardiovaskular, penyakit kanker dan degenerasi alami tubuh terkait proses penuaan dini. Penelitian ini bertujuan untuk mengetahui perubahan aktivitas antioksidan dan kadar betasianin dari fermentasi buah naga maupun umbi bit sebagai minuman fungsional selama waktu fermentasi yang berbeda. Hasil penelitian menunjukkan bahwa adanya korelasi antara waktu fermentasi terhadap aktivitas antioksidan dalam kemampuannya menangkal radikal bebas, kemampuan mereduksi ion besi (FRAP), dan kadar betasianin yang dihasilkan. Semakin lama waktu fermentasi menyebabkan peningkatan penghambatan radikal bebas dan reduksi ion besi, namun menurunkan kadar betasianin. Nilai aktivitas penghambatan radikal bebas (DPPH) optimum diperoleh dari minuman fermentasi buah naga selama waktu fermentasi 12 hari dengan nilai penghambatan sebesar 80,76%, kemampuannya dalam mereduksi ion besi sebesar 197,94 µg asam askorbat mL–1, dan kadar betasianin sebesar 0,055 mg L–1
ANALISIS STRUKTUR KRISTAL DAN SIFAT MAGNETIK BAHAN Eu_(2-x) Ce_x CuO_(4+α-δ) (ECCO) PADA KONSTENRASI x = 0,20 – 0,25 EFFENDI, RAHMA SUNDAYA; MARYATI, YATI; WIDYASWARI, UTAMI; SARAGI, TOGAR; R, RISDIANA
Jurnal Material dan Energi Indonesia Vol 14, No 1 (2024)
Publisher : Fakultas Matematika dan Ilmu Pengetahuan Alam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24198/jme.v14i1.49294

Abstract

Eu2-xCexCuO4 (ECCO) adalah salah satu bahan superkonduktor tipe doping elektron yang berbasis cuprates. Bahan ECCO menarik untuk diteliti dan dipelajari karena Eu sebagai bahan utama yang membentuk bahan ECCO tidak memiliki momen magnetik dalam keadaan dasar sehingga memudahkan dalam mempelajari sifat magnetik secara keseluruhan pada bahan superkonduktor ECCO. Tujuan dari penelitian ini adalah mempelajari struktur dan sifat magnetik bahan ECCO dengan konsentrasi Ce (x) = 0,20; 0,21; 0,22; 0,23; 0,24 dan 0,25. Seluruh bahan ECCO dikarakterisasi dengan menggunakan X-Ray Diffraction (XRD) untuk mengetahui struktur kristal serta parameter kisi dan dikarakterisasi dengan menggunakan Superconducting Quantum Interference Device (SQUID) untuk mengetahui sifat magnetik bahan. Hasil karakterisasi XRD menunjukkan bahwa fase kristal telah sesuai dengan fase superkonduktor doping elektron dimana struktur yang terbentuk berbentuk T’ yang ditandai dengan munculnya puncak khas pada dhkl (013) dan (110). Untuk hasil SQUID teramati sifat paramagnetik pada bahan ECCO dengan Ce (x) = 0,20 – 0,25 pada rentang nilai reduksi oksigen tertentu. Hasil data dan analisis lebih lanjut akan dibahas secara detail.
Implementasi Supervisi Pendidikan dalam Meningkatkan Proses Pembelajaran Maryati, Yati
Journal of Innovation in Teaching and Instructional Media Vol 2 No 3 (2022): Journal of Innovation in Teaching and Instructional Media
Publisher : Yayasan Sembilan Pemuda Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52690/jitim.v2i3.305

Abstract

This study aims to describe the supervision activities carried out by the head of MTs Negeri 1 Prabumulih in improving the learning process carried out by teachers. In general, this study reveals that 1) The focus of supervision activities includes teacher administration and learning process activities; 2) Supervision activities are very helpful for teachers in solving educational problems faced by teachers during learning; 3) With supervision, teachers become more motivated to try to increase knowledge to become professional teachers in carrying out learning; 4) Obstacles faced by school principals in supervision are the number of activities, limited operational funds, and the COVID-19 pandemic which limits activities so that supervision which should be carried out twice becomes once a year.
Catalytic Performance of Cu-Ni supported on Rice Husk Ash-derived SiO2 for the Hydrogenation of Ethylene Carbonate to Ethylene Glycol Maharani, Najiah Sephia; Rahmawati, Novia Dwi; Aziz, Isalmi; Maryati, Yati; Agustian, Egi; Widjaya, Robert Ronal; Yati, Indri; Prasetyo, Joni; Rinaldi, Nino; Dwiatmoko, Adid Adep
Bulletin of Chemical Reaction Engineering & Catalysis 2025: BCREC Volume 20 Issue 1 Year 2025 (April 2025)
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20336

Abstract

Ethylene glycol, a crucial compound extensively utilized in solvents, coolants, antifreeze, polyester fiber production, and as a natural gas-drying agent, can be synthesized via the hydrogenation of ethylene carbonate. In this study, the synthesis, characterization, and catalytic performance of Cu-Ni/SiO2 catalysts for this reaction, utilizing silica (SiO2) derived from rice husk ash, were investigated. Silica was impregnated with copper (Cu) and nickel (Ni) by varying the weight ratio (Cu:Ni = 10, 7:3, 3:7, 10) to prepare bimetallic catalysts. X-ray Diffraction (XRD) analysis confirmed the presence of both Cu and Ni phases in all the catalysts. The 3Cu7Ni/SiO2 catalyst displayed the lowest reduction temperature and the largest surface area (257.97 m²/g). The 7Cu3Ni/SiO2 catalyst exhibited the highest acidity (1.91 mmol/g) and superior metal dispersion, as confirmed by the Field Emission Scanning Electron Microscopy - Energy Dispersive X-Ray (FE-SEM-EDX) analysis. Catalytic activity was evaluated in a batch reactor under 40 bar H2 pressure at 150 °C for 3 h with a catalyst-to-ethylene carbonate ratio of 5:1. Among the catalysts examined, the 7Cu-3Ni/SiO2 composition demonstrated the highest catalytic performance, achieving 15.14% conversion of ethylene carbonate and 80.51% selectivity towards ethylene glycol. Copyright © 2025 by Authors, Published by BCREC Publishing Group. This is an open access article under the CC BY-SA License (https://creativecommons.org/licenses/by-sa/4.0).
PERAN PEREMPUAN DALAM RUMAH TANGGA PEMBUDIDAYA IKAN AIR TAWAR DI KELURAHAN SUMBERSARI KOTA METRO Mutolib, Abdul; Nisa, Indah Khoirun; Fajar, Surya; Maryati, Yati
Mimbar Agribisnis : Jurnal Pemikiran Masyarakat Ilmiah Berwawasan Agribisnis Vol 9, No 2 (2023): Juli 2023
Publisher : Universitas Galuh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25157/ma.v9i2.9993

Abstract

The purpose of this study was to identify the role of women in freshwater fish farming households. The research was carried out in Sumbersari Village, Metro Selatan District with consideration as a center for freshwater fisheries in Metro City in November-December 2020. Respondents to the study consisted of 20 freshwater fish farming households which were selected using the simple random sampling method. Data were analyzed using qualitative methods and Harvard methods to see the role of women in gender activity profiles (reproductive, productive and social division of labor), access to resources and benefits and control over resources and benefits based on gender. The role of women in aquatic fish farming households is dominated by reproductive activities (domestik work). Activities whose division of labor is dominated by men include: 1) Productive division of labor, 2) Social division of labor, 3) Access to resources, and 4) Control over resources. Equality in the division of labor based on gender has occurred in access to benefits and control over benefits activities. In general, the division of labor in the air-tawae fish farming household is not equal between men and women. Women dominate in the division of labor in the domestik sector and men dominate in the productive, social, and access to family resources sectors.
The influence of Educational Game Media on Kinesthetic Learning Styles in Early Childhood AlAyyubi, IbnuImam; Masfuroh, AiSri; Maryati, Yati; Nurhikmah, Nurhikmah; Rahmawati, Siti
Iftitiah: Jurnal Ilmiah Pendidikan Islam Anak Usia Dini Vol. 3 No. 2 (2025): IFTITIAH: Jurnal Ilmiah Pendidikan Islam Anak Usia Dini
Publisher : Prodi PIAUD IAI Pangeran Dharma Kusuma Indramayu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55656/ijpiaud.v3i2.344

Abstract

This study aims to examine the impact of the use of educational game media on kinesthetic learning styles in early childhood. The study uses a quantitative research method with an explanatory research approach. The research was conducted at RA Al-Jazila with a population of 99 students and a sample size of 20 from class B4. The sampling technique used was probability sampling with simple random sampling, while the instruments used were questionnaires and tests. The data analysis requirement tests included normality testing using the Kolmogorov-Smirnov test and linearity testing, with hypotheses tested using correlation and regression analysis assisted by SPSS version 26. This study concludes that Educational Game Media has a significant effect on Kinesthetic Learning Styles in Early Childhood. Therefore, the use of educational game media is highly recommended in early childhood education, especially to support kinesthetic learning styles. This study also provides recommendations for teachers, educational institutions, and future researchers to develop innovations in the use of educational game-based learning media. Future researchers could explore more specific types of educational games or integrate digital technologies to improve learning effectiveness.
Akurasi Kode Diagnosis Birth Asphyxia dan Neonatal Jaundice sesuai ICD-10 di RS X Tasikmalaya Tahun 2022 Sukawan, Ari; Lestari, Dinda Dwi; Haruna, Agustina; Rosyadi S, Muhammad Erwin; Maryati, Yati
Indonesian of Health Information Management Journal (INOHIM) Vol 12, No 1 (2024): INOHIM
Publisher : Lembaga Penerbitan Universitas Esa Unggul

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47007/inohim.v12i01.502

Abstract

AbstractThe analysis of the accuracy of diagnostic codes in medical records is crucial. If the codes generated are inaccurate, it can lead to a decline in the quality of patient care in hospitals, as well as compromise data, report information, and payment costs for patient services. The Apgar score is a reliable method for detecting asphyxia. Jaundice is a clinical condition that often affects children, characterized by yellow discoloration of the skin and eyes. This study aims to determine the accuracy of Birth Asphyxia and Neonatal Jaundice diagnostic codes according to ICD-10. This research is a descriptive quantitative study with a sample size of 212 medical records, using a simple random sampling technique. The results show that 9% of Birth Asphyxia diagnostic codes are accurate, while 91% are inaccurate. For Neonatal Jaundice, 42% of the diagnostic codes are accurate, and 58% are inaccurate. The inaccuracies are due to errors in the three-character code, the non-specificity of the fourth character, and the absence of codes in medical records, influenced by coder factors. Overall, the accuracy of diagnostic codes is higher in the inaccurate category.Keywords: code accuracy, diagnostic code, medical record Abstrak Analisis akurasi kode diagnosis dalam rekam medis sangat penting dilakukan. Jika kode yang dihasilkan tidak akurat, dapat mengakibatkan penurunan mutu perawatan pasien di rumah sakit serta mengkompromikan data, informasi laporan, dan biaya pembayaran untuk pelayanan pasien. Penggunaan skor Apgar merupakan metode yang dapat diandalkan untuk mendeteksi asphyxia. Jaundice adalah kondisi klinis yang sering menyerang anak-anak, ditandai dengan perubahan warna kulit dan mata menjadi kuning. Penelitian ini bertujuan untuk mengetahui akurasi kode diagnosis Birth Asphyxia dan Neonatal Jaundice sesuai dengan ICD-10. Penelitian ini bersifat deskriptif kuantitatif dengan jumlah sampel sebanyak 212 rekam medis, menggunakan teknik simple random sampling. Hasil penelitian menunjukkan bahwa 9% kode diagnosis Birth Asphyxia akurat, sementara 91% tidak akurat. Untuk kode diagnosis Neonatal Jaundice, 42% akurat dan 58% tidak akurat. Ketidakakuratan ini disebabkan oleh kesalahan dalam kode tiga karakter, ketidaktepatan karakter ke-4, dan tidak ada kode pada rekam medis, serta dipengaruhi oleh faktor coder. Secara keseluruhan, akurasi kode diagnosis masih lebih besar pada kategori yang tidak akurat.Kata Kunci: akurasi kode, kode diagnosis, rekam medis
Co-Authors Abdul Mutolib Agustine Susilowati Aspiyanto Aspiyanto Dwiatmoko, Adid Adep EFFENDI, RAHMA SUNDAYA Egi Agustian Fajar, Surya Hakiki Melanie Haruna, Agustina Ibnu Imam Al Ayyubi Isalmi Aziz Joni Prasetyo, Joni Lestari, Dinda Dwi Lotulung, Puspa Dewi Narij Maharani, Najiah Sephia Masfuroh, AiSri Nina Artanti Nino Rinaldi Nisa, Indah Khoirun Novia Dwi Rahmawati Nurhikmah Nurhikmah R, RISDIANA Rosyadi S, Muhammad Erwin Siti Rahmawati Sukawan, Ari Togar Saragi, Togar Widjaya, Robert Ronal WIDYASWARI, UTAMI yati, indri