Article Per Year (5 Year)
p-Index From 2020 - 2025
2.258
P-Index
This Author published in this journals
All Journal Jurnal AGROTEKNOLOGI Jurnal Bahan Alam Terbarukan Jurnal Teknologi Konversi Sinergi Seminar Nasional Teknik Kimia Kejuangan Jurnal Pengabdian Masyarakat Teknik Journal of Applied Sciences and Advanced Technology Journal Of Chemical Process Engineering
Tri Yuni Hendrawati
Teknik Kimia Fakultas Teknik Universitas Muhammadiyah Jakarta
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology

Published : 20 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 20 Documents
Search

 1   2 
PEMILIHAN PRIORITAS LOKASI INDUSTRI SUSU STERILISASI DI JAWA TENGAH DENGAN METODE ANALYTICAL HIERARKHI PROCESS (AHP) Hendrawati, Tri Yuni; Utomo, Suratmin
Jurnal Teknologi Vol 7, No 2 (2015): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Sterilisasi susu adalah proses pengawetan susu yang dilakukan dengan cara memanaskan susu sampai mencapai suhu diatas titik didih, sehingga bakteri maupun kuman dan sporanya mati. Cara sterilisasi susu memerlukan peralatan khusus dan perlu didesign untuk skala kecil menengah sehingga dapat diterapkan di kelompok peternak, KUD Susu di daerah penghasil terutama pada penelitian di daerah  Jawa Tengah. Tujuan penelitian ini adalah memilih prioritas lokasi industri susu sterilisasi di Jawa Tengah dengan metode Analytical Hierarkhi Process (AHP). Tahapan pengumpulan data/survey dalam penelitian ini meliputi pengumpulan data baik yang bersifat kualitatif maupun kuantitatif terhadap aspek-aspek yang berhubungan dengan pemilihan prioritas lokasi industri susu sterilisasi di Jawa Tengah. Pengumpulan data yang akan dilakukan dalam survey ini meliputi data sekunder (instansional) dan  primer (wawancara dan kuesioner, data  publikasi dan rujukan). Dalam menentukan daerah mana yang akan dijadikan lokasi pembangunan pabrik susu sterilisasi untuk provinsi Jawa Tengah ditentukan menggunakan software AHP dengan mempertimbangkan kriteria utama ketersediaan bahan baku, ketersediaan lahan, utilitas dan kelembagaan. Sedangkan kriteria pendukung meliputi pemasaran, populasi pabrik susu yang ada, bencana alam dan cuaca. Hasil analisis AHP menunjukkan bahwa Dari hasil pemilihan prioritas lokasi Kabupaten Semarang merupakan tempat prioritas pembangunan pengolahan susu sterilisasi dengan bobot 0,440  diikuti dengan Kabupaten Wonosobo dengan bobot 0,319  dan Kabupaten Boyolali dengan bobot 0,241.
PEMILIHAN PRIORITAS BAHAN BAKU BIOAVTUR DI INDONESIA DENGAN METODE ANALYTICAL HIERARKHI PROCESS (AHP) Siswahyu, Agung; Hendrawati, Tri Yuni
Jurnal Teknologi Vol 6, No 2 (2014): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Bioavtur  merupakan  bahan  bakar  alternative  untuk  pesawat  terbang  bermesin  turbin.  Penggunaan bioavtur bertujuan untuk mengurangi emisi gas buang dari mesin pesawat terbang. IATA sejak tahun 2005 sudah memiliki strategi untuk mengurangi emisi gas buang. Salah satu program yang dilakukan adalah dengan menggunakan bioavtur  sebagai bahan bakar. Indonesia sebagai anggota IATA juga memiliki kewajiban untuk melakukan hal tersebut. Oleh karena itu pemenuhan kebutuhan bioavtur di Indonesia sebagai bahan bakar pesawat memiliki peran penting dan stratergis.  Bioavtur dihasilkan olehserangkaian proses konversi biomassa  berupa serat, gula, tepung dan minyak nabati.  Proses konversi bahan tersebut  bisa  melalui  proses  transesterifikasi,  perlakuan  panas  (pyrolisis  dan  hydrothermal), perlakuan hidrolisis oleh enzim, fermentasi, dan fischertrops.  Indonesia  memiliki potensi bahan baku yang melimpah, produksi minyak kelapa sawit Indonesia tahun 2014 mencapai 29,41 juta ton, minyak kelapa 3,38 juta ton dan 4.6 Ton minyak inti sawit ditahun 2014.  Tujuan penelitian ini adalah memilih prioritas bahan baku bioavtur dengan metode Analytical Hierarkhi Process (AHP). Hasil analisis AHP menunjukkan  bahwa  minyak  sawit  adalah  bahan  baku  yang  paling  potensial  dengan  bobot  0,361, kemudian  urutan  kedua  adalah  biomassa bobot  nilai  0,327  sedangkan  minyak intisawit  dan kelapa berbobot  0,156.  Berdasarkan  analisis  AHP  maka  pemanfaatan  bahan  baku  terbarukan  (renewable resourcess) berbasis minyak nabati seperti minyak kelapa sawit untuk produksi bioavtur menjadi salah satu solusi yang potensial.
PENGARUH KONSENTRASI KOH PADA EKSTRAKSI RUMPUT LAUT (Eucheuma cottonii) DALAM PEMBUATAN KARAGENAN Is Tunggal, Wulan Wibisono; Hendrawati, Tri Yuni
Konversi Vol 4, No 1 (2015)
Publisher : Konversi

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Eucheuma cottonii merupakan rumput laut yang banyak tumbuh di sepanjang pesisir pantai Indonesia. Untuk meningkatkan kualitas dan nilai tambah Eucheuma cottonii, maka dibuat menjadi karagenan. Tujuan penelitian ini adalah mempelajari pengaruh konsentrasi KOH terhadap mutu karagenan yang dihasilkan. Karagenan diperoleh dari ekstraksi rumput laut (Eucheuma cottoni) dengan cara membersihkan Eucheuma cottoni kering kemudian direndam menggunakan air selama 30 menit dan dipotong-potong menjadi 2-4 cm selanjutnya diekstraksi dengan larutan KOH konsentrasi 0,1N 0,3N 0,5N 0,7N dan 0,9N. Eucheuma cottonii dicuci dengan air dan dikeringkan hingga menghasilkan berat konstan dan digiling hingga menghasilkan tepung karagenan. Tepung karagenan yang dihasilkan di uji kadar air, kadar abu, kekuatan gel dan viskositasnya. Hasil yang diperoleh pada uji tepung karagenan menunjukan adanya peningkatan kekuatan gel karagenan dan tertinggi diperoleh pada penambahan konsentrasi KOH 0,9 N, yaitu sebesar 215,82 gram/cm2. Rendemen tepung karagenan mengalami kenaikan dengan meningkatnya konsentrasi KOH dan tertinggi sebesar 14,05%. Untuk viskositas karagenan dengan penambahan konsentrasi KOH didapatkan viskositas karagenan semakin menurun dan viskositas karagenan tertinggi didapat  pada konsentrasi KOH 0,1 N yaitu sebesar 275,3 MPaProses terbaik pembuatan karagenan dari Euchema cottonii yaitu waktu ekstraksi KOH 60 menit, konsentrasi KOH 0,9 N, menghasilkan randemen 28,80%, kekuatan gel 215,82 gram/cm2, kadar air 8,42%, kadar abu 37,2%, viskositas 183,3 MPa..Kata Kunci: Eucheuma cottonii, Ekstraksi, gel, viskositas, Karagenan.
AN ANALYSIS OF METAL SURFACE IMMERSED IN BASED LUBRICANT FROM MINERAL OIL CONTAINING VEGETABLE OIL WITH RICE BRAN OIL BASED BIO-INHIBITOR Nugrahani, Ratri Ariatmi; Hendrawati, Tri Yuni; Susanty, Susanty
Jurnal Bahan Alam Terbarukan Vol 7, No 2 (2018): December 2018 [Nationally Accredited]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v7i2.11623

Abstract

The need for environmentally friendly chemical products in daily needs encourages the production of its. The green-chemistry concept is using the process and produces chemical products that are ecofriendly. Including ecofriendly chemical products are base oil and additives for lubricants, grease, and fuels. The production is expected to reduce the consumption of mineral and synthetic base oils, so it will be biodegradable and renewable. This study compares the results of analysis of metallic surfaces immersed in the mixture of mineral and vegetable base oil, with the addition of rice bran oil bioadditive, ie epoxidized methyl ester (EME) and hydroxyl alkylbenzene sulphonic acid ester (HASE). The research method consists of preparing HASE; analyzing the effect of HASE and EME bioadditives addition on the mixture of base oil to the changing of metallic weight immersed in the mixture; determining the inhibition efficiency of the EME and HSAE additions; analyzing the metal surface using SEM-EDX (Scanning Electron Microscope) / (Energy Dispersive X-ray Spectrometry) to find images of microstructure and chemical compounds contained in specimens, and testing the metal difractogram immersed in base oil mixtures with bioadditive using XRD (X-Ray Diffraction). SEM test results of carbon steel immersed in a mixture of base oil and bioadditives show corrosion in which the metal surface color immersed in EME bioadditive mixtures is brighter. EDX spectra of metal sample surfaces immersed in a mixture of base oil, EME and HASE contain carbon (C) and iron (Fe). The carbon content in carbon steel samples immersed in the mixtures and HASE is higher. XRD test results show Fe2O3 phases in carbon steel samples immersed in the HASE bioadditive mixture are higher than in EME. While Fe3O4 phases in carbon steel samples immersed in the EME bioadditive mixture are higher than Fe2O3 phases in samples immersed in HASE bioadditive mixture.
AN ANALYSIS OF METAL SURFACE IMMERSED IN BASED LUBRICANT FROM MINERAL OIL CONTAINING VEGETABLE OIL WITH RICE BRAN OIL BASED BIO-INHIBITOR Nugrahani, Ratri Ariatmi; Hendrawati, Tri Yuni; Susanty, Susanty
Jurnal Bahan Alam Terbarukan Vol 7, No 2 (2018): December 2018 [Nationally Accredited]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v7i2.11623

Abstract

The need for environmentally friendly chemical products in daily needs encourages the production of its. The green-chemistry concept is using the process and produces chemical products that are ecofriendly. Including ecofriendly chemical products are base oil and additives for lubricants, grease, and fuels. The production is expected to reduce the consumption of mineral and synthetic base oils, so it will be biodegradable and renewable. This study compares the results of analysis of metallic surfaces immersed in the mixture of mineral and vegetable base oil, with the addition of rice bran oil bioadditive, ie epoxidized methyl ester (EME) and hydroxyl alkylbenzene sulphonic acid ester (HASE). The research method consists of preparing HASE; analyzing the effect of HASE and EME bioadditives addition on the mixture of base oil to the changing of metallic weight immersed in the mixture; determining the inhibition efficiency of the EME and HSAE additions; analyzing the metal surface using SEM-EDX (Scanning Electron Microscope) / (Energy Dispersive X-ray Spectrometry) to find images of microstructure and chemical compounds contained in specimens, and testing the metal difractogram immersed in base oil mixtures with bioadditive using XRD (X-Ray Diffraction). SEM test results of carbon steel immersed in a mixture of base oil and bioadditives show corrosion in which the metal surface color immersed in EME bioadditive mixtures is brighter. EDX spectra of metal sample surfaces immersed in a mixture of base oil, EME and HASE contain carbon (C) and iron (Fe). The carbon content in carbon steel samples immersed in the mixtures and HASE is higher. XRD test results show Fe2O3 phases in carbon steel samples immersed in the HASE bioadditive mixture are higher than in EME. While Fe3O4 phases in carbon steel samples immersed in the EME bioadditive mixture are higher than Fe2O3 phases in samples immersed in HASE bioadditive mixture.
Quality Improvement and Market Diversification of Honey Bee and Herbal Based Products in Herbal Propolis Mouthwash Hendrawati, Tri Yuni; Nugrahani, Ratri Ariatmi; Hasyim, Ummul Habibah; Puteri, Renty Anugerah Mahaji; Permatasari, Tria Astika Endah; Darto, Darto; Andriansyah, Miftah; Wusono, Ciska Nabilla; Hidayat, Sri
Journal of Applied Sciences and Advanced Technology Vol 6, No 2 (2023): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.6.2.43-48

Abstract

In the 2023 Kedaireka matching fund grant activity with the title pimproving the quality and market diversification of honey bee and herbal based products Scheme Downstreaming innovation from research results for commercialization purposes, innovation has been carried out in the production of herbal propolis mouthwash. In the herbal propolis mouthwash innovation, a formula was combined on the function of propolis and the results of betel leaf extraction for a non-alcoholic mouthwash formula. The prototype of this mouthwash has received a distribution permit from BPOM NA with number NA 18231400102 using the Prolizama brand. This activity is a collaboration between Universitas Muhammadiyah Jakarta and partner CV Madu Apiari Mutiara in Depok, West Java, Indonesia. In this activity, the activities carried out include making prototypes, testing, packaging design, processing BPOM NA distribution permit certification, limited scale production, optimizing online marketing via the website and making a business plan for the UMJ and CV Madu Apiari Mutiara agreement, Madu Apiari Mutiara. Innovation Herbal propolis mouthwash with natural composition, high antioxidant and anti-inflammatory in combination with propolis and betel herbs. In achieving a price competitive product, it is hoped that it will be a substitute for propolis mouthwash imported from Japan without expensive herbs. This formula is being patented. The production of herbal propolis mouthwash is expected to increase partner income. In the implementation of independent learning, the MKBM independent campus is the fulfillment of IKU 2, Students Gain Experience Outside Campus, IKU 3, namely Lecturers Doing Activities Outside Campus and IKU 5, Lecturers' Work Results are Used by the Community. The Depok City Regional Government and the community will have superior products, herbal jelly candy and herbal propolis mouthwash that are healthy and halal. A significant impact for UMJ is an increase in the entrepreneurial atmosphere for lecturers and students.
Manufacture of Biodegradable Plastics from Cassava Starch (Manihot Escullenta) with Variable Glycerol Plasticizers and Chitosan Reinforcement Zihan, Nurul; Nugrahani, Ratri Ariatmi; Hendrawati, Tri Yuni
Journal of Applied Sciences and Advanced Technology Vol 7, No 1 (2024): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.7.1.1-6

Abstract

Biodegradable plastic is an alternative environmentally friendly packaging material because it is made from renewable materials and is scientifically easily degraded by microorganisms and by weather. Renewable material that is abundant in Indonesia is cassava which has high potential as a raw material for making biodegradable plastics. Purpose This study was conducted to determine the process of making biodegradable plastic from cassava starch, knowing the effect of adding glycerol and chitosan to the mechanical properties of biodegradable plastics, and know the characteristics of biodegradable plastics from the best conditions. The process of making biodegradable plastic from cassava starch begins with mixing cassava starch with water and processing until starch dough is formed. Next, glycerol is added to the starch dough and mixed until homogeneous. The final stage is chitosan added to the mixture and stirred until well mixed. The mixture is then heated and molded according to the desired shape. Biodegradable plastics produced from a mixture of cassava starch, glycerol, and chitosan have good mechanical properties and can decompose naturally in the environment for the study variables with concentrations of glycerol 2%,4%,6%,8%,10% and chitosan 1%,3%,5%,7%,9% in a mixture of 100 ml. Mechanical tests such as tensile strength, percent elongation and biodegradation of biodegradable plastics are carried out on product characteristics. The result of this study was to obtain the highest tensile strength in sample 1 of 3.41 Mpa and had an elongation of 68%. While the highest elongation in sample 3 was 130% and tensile strength was 0.26 MPa. The highest biodegradation result in sample 1 was 31.70% and the lowest in sample 5 was 6.55%.
Optimization of the Ultrasonic Extraction Process of Kasumba Turate (Carthamus tinctorius Linn) Using the Response Surface Metodology (RSM) Technique Zulfikar, Zulfikar; Hendrawati, Tri Yuni; Redjeki, Athiek Sri
Journal of Applied Sciences and Advanced Technology Vol. 6 No. 3 (2024): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.6.3.91-98

Abstract

Kasumba turate (Carthamus tinctorius Linn) or safflower is a traditional medicine used by South Sulawesians. Polyphenol compounds and antioxidant activity are active components of kasumbu turate. This component can be obtained through extraction. The goal of this study was to find the best conditions for extracting kasumba turate with high total phenol levels and strong antioxidant activity, as well as encapsulating the resulting extract. The ultrasonic assisted extraction (UAE) method was used to extract Kasumba turate with methanol, and the Responses surface Methodology method was used to optimize the extraction. Behnken Box Variations in composition solutions of 50, 60, 70, 80, and 90%, as well as time variations of 20, 30, 40, 50, and 60 minutes. A solvent ratio of was used for sample extraction 1: 1 using Methanol solvent and water, determined which is the best result of this variable, and continued by analyzing is a test analysis with Spectrophotometry, DPPH, and the best results of the variable are analyzed using Spectofotometry to see the content of flavonoid compounds in Kasumba Turate Flowers.      
Performance of Beeswax and Ricebran-Wax Coating on Weight Loss of Local Indonesian Fruits: Kirana Banana, Gedong Mango, and Pontianak Orange Nugrahani, Ratri Ariatmi; Hendrawati, Tri Yuni; Hasyim, Ummul Habibah; Hakim, Rusnia Junita
Journal of Applied Sciences and Advanced Technology Vol 7, No 1 (2024): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.7.1.7-14

Abstract

Bananas, mangoes, and oranges are fruit commodities that are quite potent and have a promising export market share. The shelf life of the fruit is not long and causes physical-chemical damage to the fruit, one way that can be done in post-harvest handling of the fruit is by using the wax method. This study used types of wax, namely beeswax and rice bran wax. The purpose of this study was to determine the effect of beeswax coating on fruit weight loss, to determine the effect of rice bran wax concentration on the characteristics of rice bran wax coating and fruit weight loss, determine the effect of storage time of bananas, mangoes, and oranges on fruit weight loss. The independent variables in this study included rice bran wax concentration (6;9;12;15;18)% and fruit storage time of 3 weeks, while the dependent variables in this study included pH, density (gr/ml), viscosity (seconds), mango fruit weight loss ( %). The procedures in this study include the manufacture of beeswax coating, and rice bran coating, analysis of characteristics of beeswax coating and rice bran wax coating, and analysis of weight loss of bananas, mangoes and oranges after coating. The results of the analysis of the characteristics of rice bran wax coating (pH, density, viscosity) on the concentration of rice bran wax (6; 9; 12; 15; 18)% showed that the pH showed a downward trend with a pH value of 9.33; 9.22; 9.21; 9.18 and 8.95, the density showed a tendency to increase with a density value of 1.018; 1.021; 1.022; 1.023; and 1.026 gr/ml, the viscosity showed a tendency to increase with a value of 8.85; 8.2; 8.3; 8.43; 8.56 seconds. Characteristics of Beeswax Coating 12% resulted in a pH of 9.19, a density of 1.019 g/mL, and a viscosity of 8.3 seconds. The smallest weight loss of mangoes and oranges for 3 weeks was fruit coated with 12% beeswax coating, and the smallest weight loss for bananas for 3 weeks was fruit coated with 12% rice bran wax coating.
Development of Educational Tourism Model Based on Local Competency at Sangkhom Islam Wittaya School Thailand Gustia, Helfi; Haryanto, Lorenta In; Darto, Darto; Hendrawati, Tri Yuni; Mahendra, Okta; Lemsoh, Jarunee
Journal of Applied Sciences and Advanced Technology Vol 7, No 1 (2024): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.7.1.15-24

Abstract

Sangkhom Islam Wittaya School is a privately owned Islamic school that provides standardized subjects and is overseen by the Songkhla Provincial Private Education Office. Despite being situated in a region renowned for its tourism potential, its allure remains untapped. This activity aimed to address the challenges partners overcome by developing educational approaches incorporating tourism principles. The activity commenced with a survey in 2023 and proceeded with coaching sessions from January to March 2024. The partners comprised six Sangkhom Islam Wittaya School administrators and numerous Primary and Junior High School students. This community service program employed a qualitative method integrating descriptive and explanatory approaches. Primary data collection involved conducting interviews, making observations, and organizing focus group discussions (FGDs). On the other hand, secondary data was obtained from reports, books, and other published materials. The observed tourist attractions encompassed floating markets, culinary establishments, souvenir stores, Buddhist temples and statues, hilltop museums, wayside businesses, and other similar attractions, all meticulously documented as recommended places to visit. The guided visit was divided into two days based on distance analysis. The authors suggested some places on the trip around. On the first day, students can visit Hat Yai Municipal Park, Khlong Hae Floating Market, and Kim Yong Market. On the second day, students explore Samila Beach, Songkhla Old Town, and the Folklore Museum. The findings of the partner satisfaction survey indicated that the partners expressed delight with the program implementation.
Co-Authors Agdila, Alivia Fernanda Agung Siswahyu Alvika Meta Sari Anggaraini, Nisrina Harum Anwar Ilmar Ramadhan Athiek Sri Redjeki Azmairit Aziz Azmi, Wan Hamzah Budiyanto Budiyanto Cakrawala, Orion Nawandie Cardosh, Syafira R Darto Darto Darto, D Efrizon Umar Erna Astuti Firmansyah Firmansyah Hakim, Rusnia Junita Hardiman, Bayu Haryanto, Lorenta In Helfi Gustia Hidayat, Sri hidayat, untung Ika Kurniaty, Ika Ismiyati, Ismiyati kadarisman, muhammad Kushendarsyah Saptaji Lemsoh, Jarunee Miftah Andriansyah, Miftah Mursandi, Hamza Nurul Hidayati Fithriyah OKTA MAHENDRA, OKTA Rahardja, Istianto Budhi Ramadhani, Annisyah Ratri Ariatmi Nugrahani Renty Anugerah Mahaji Puteri Safira, Ajeng Listiani Sari, Fatma Semendo, Rifqi Putra Setiawan, Hanif Rama Yuda Suffah, Nurullia Sulis Yulianto Suratmin Utomo Susanty Susanty, Susanty Tria Astika Endah Permatasari Ummul Habibah Hasyim Wulan Wibisono Is Tunggal, Wulan Wibisono Wusono, Ciska Nabila wusono, ciska nabilah Wusono, Ciska Nabilla Yusril, Ariadi Yustinah Yustinah Zihan, Nurul Zulfikar Zulfikar