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Tri Yuni Hendrawati
Universitas Muhammadiyah Jakarta
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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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.
Peningkatan Rendemen Nata de Pina dengan Perlakuan Konsentrasi Starter dan Asam Asetat dari Kulit Nanas Varietas Tangkit Yusril, Ariadi; Hendrawati, Tri Yuni; Nugrahani, Ratri Ariatmi
JURNAL AGROTEKNOLOGI Vol 17 No 01 (2023)
Publisher : Faculty of Agricultural Technology, University of Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/j-agt.v17i01.39099

Abstract

Pineapple plantation area in Tangkit Baru Village of Jambi Province is 1,200 ha with 10,101 tons/year of production and the pineapple peel waste is estimated at 2,727 tons/year. That pineapple peel can be used as a medium for nata de pina production. The study was to obtain the optimum natural starter and yield of nata de pina from pineapple peel of Tangkit variety. Completely randomized design (CRD) study of various carbon source (2, 2.5, 3, 3.5, 4%) and nitrogen source (0.5, 1, 1.5, 2, 2.5%) with treatment variation of starter concentration (5; 10; 15; 20; 25%), and varous acetic acid (0, 0,75%). This study produced five types of ready-to-use natural starters namely starter de tangkit 1, 2, 3, 4, and 5. The population of bacteria for starter de tangkit 1–5 around 7.0×106 until 1.6×108 CFU/mL and reference starter (Hanum merk) of 7.6×107 CFU/mL. The starter de tangkit 1 was chosen because it produces the optimum yield value and could be used in coconut media. At a starter concentration of 10%, the treatment with 0.75% acetic acid, 2.50% sugar, and 0.5% sprout extract produced the highest yield of 57.52%, while without acetic acid only 19.36% (the highest yield was only 30,76%). Linear equation to optimum produce of nata de pina yield: Y = 55.4148–1.24 X1+0.6392 X2 (Y yield, X1 sugar, X2 sprout extract). The variation of 25% starter concentration showed an increase in yield value to 66%. Data analysis using two-way ANOVA showed carbon and nitrogen sources did not have a significant effect on nata de pina yield. The moisture content, fiber, and organoleptic were not significantly different from reference nata de coco (SNI 01-4317-1996), but not in the color. Nata de pina had brown color because made from the extracts pineapple peel of the Tangkit variety. Keywords: acetic acid, nata de pina, pineapple peel, starter de tangkit
Pengabdian Masyarakat Pelatihan Pembuatan Produk Minuman Sehat dan Masker Aloe vera di Komunitas Pengajian Nusa loka Serpong Kota Tangerang Selatan Hendrawati, Tri Yuni; Gustia, Helfi; Nugrahani, Ratri ariatmi; Hasyim, Ummul Habibah; Ismiyati, Ismiyati; kadarisman, muhammad; hidayat, untung; wusono, ciska nabilah; Agdila, Alivia Fernanda
Jurnal Pengabdian Masyarakat Teknik Vol 5, No 2 (2023): Jurnal Pengabdian Masyarakat Teknik (JPMT)
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jpmt.5.2.65-70

Abstract

Permasalahan dari gaya hidup masyarakat saat ini yang lebih senang dengan minuman instan dan kosmetik yang bukan dari bahan alam mendorong untuk dapat menyebarkan pengetahuan dan mengadakan pelatihan untuk pembuatan produk minuman sehat dan masker Aloe vera di kompleks Nusa loka Serpong Kota Tangerang Selatan bagi paguyuban ibu-ibu Nusaloka. Kegiatan ini meliputi pelatihan selama satu hari dan persiapannya. Dalam pelaksanaan dilakukan pretest dan post test terhadap pemahaman materi. Kegiatan ini melibatkan dosen anggota dan mahasiswa dalam rangka pelaksanaan Mereka Belajar Kampus Merdeka (MKBKM). Kegiatan ini dilakukan sebagai upaya meningkatkan pemahaman serta keterampilan peserta dengan harapan dapat mengandalkan kemampuan serta keterampilannya sendiri. Diharapkan dari peserta termotivasi untuk memanfaatkan waktu luang dalam memenuhi kebutuhan dan penghasilan tambahan. Kegiatan pengabdian ini merupakan hilirisasi kegiatan penelitian Aloe vera yaitu pembuatan minuman sehat dan masker alami Aloe vera. Kesimpulan dari kegiatan pengabdian masyarakat berjalan dengan baik dan pada masukan peserta diinginkan pelatihan selanjutnya yaitu tentang gizi dan produk kosmetik halal, Pembuatan pupuk organik dan Pelatihan Hidroponik
Implementasi Pemberdayaan Masyarakat Desa dalam Program MBKM sebagai Hilirisasi Riset Unggulan Perguruan Tinggi Sari, Fatma; Kurniaty, Ika; Gustia, Helfi; Hendrawati, Tri Yuni; Anggaraini, Nisrina Harum; Cakrawala, Orion Nawandie
Jurnal Pengabdian Masyarakat Teknik Vol 5, No 1 (2022): Jurnal Pengabdian Masyarakat Teknik (JPMT)
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jpmt.5.1.22-26

Abstract

Program pengabdian kepada masyarakat dikembangkan pada program penelitian Kebijakan Merdeka Belajar Kampus Merdeka digagas untuk pemberdayaan masyarakat melibatkan masyarakat.  Desa Pantai Harapan Jaya Muara GembongBekasi membudidayakan rumput laut sebagai mata pencaharian.Rumput laut yang dibudidayakan termasuk kelas alga merah jenis Gracilaria sp. Gracilaria sp mempunyai kandungan agarosa dan agaropektin cukup baik, yang dapat menghasilkan agar-agar dengan kekuatan gel kuat dan kokoh. Tujuan hilirasasi hasil riset untuk pemberdayaan masyarakat dengan meningkatkan produk utama desa yaitu runput laut, meningkatkan produksi air bersih dengan adanya instalasi air bersih dan strategi pemasaran produk olahan rumput laut selain itu pemberdayaan hidroponik sebagai produk tambahan masyarakat desa. Metode pelaksanaan pelatihan dan pendampingan hal teknis, manajemen dan pemasaran. Luaran kegiatan yang dicapai yaitu produk olahan rumput laut, hasil hidroponik, dan juga pemberian alat instalasi air. Produk- produk tersebut kemudian di pasarkan melalui e commerce dan WEB agar tercipta kemandirian dan juga meningkatkan pendapatan masyarakat desa Pantai Harapan Jaya Muara Gembong
Pengabdian kepada Masyarakat Peningkatan Pendapatan Usaha Mikro UMKM PT. Herbor Cipta Nusantara Melalui Penerapan Teknologi Produksi Bersih Eco Enzim Dari Limbah Kulit Buah Hendrawati, Tri Yuni; Gustia, Helfi; Darto, D; Wusono, Ciska Nabila; Hardiman, Bayu; Ramadhani, Annisyah
Jurnal Pengabdian Masyarakat Teknik Vol 6, No 1 (2023): Jurnal Pengabdian Masyrakat Teknik (JPMT)
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jpmt.6.1.15-21

Abstract

Urgensi dari kegiatan ini adalah menyelesaikan masalah di PT. Herbor Cipta Nusantara (Mitra) terkait dengan adanya limbah kulit buah hasil produksi irisan buah kering yang selama ini dibuang dengan kapasitas pembuangan limbah kulit 5 - 20 kg per hari. Kerjasama dengan mitra sudah dilakukan sejak tahun 2021 pada kegiatan kerja praktek mahasiswa dan sudah ada MOU antara UMJ dan mitra. Hasil penelitian pengabdi diimplementasikan pada pendampingan produksi Eco Enzim pada mitra.  sebagai kegiatan pengabdian masyarakat pada skema hibah Pemberdayaan Berbasis Masyarakat (PBM) khususnya Pemberdayaan Kemitraan Masyarakat (PKM). Metode yang digunakan dalam solusi adalah pendampingan produksi dan pemasaran sehingga target kenaikan pendapatan 10% dapat tercapai. Tujuan dari kegiatan ini adalah (1). Menyelesaikan permasalahan mitra pada aspek produksi dan manajemen dengan penerapan teknologi produksi bersih eco enzim dari limbah kulit buah yang selama ini dibuang sehingga menaikkan pendapatan mitra 10 %, (2). Pendampingan pemasaran on line dan off line dengan optimalisasi website yang sudah ada, (3) Implementasi MBKM dan pemenuhan IKU, kegiatan melibatkan 3 mahasiswa. Pada kegiatan ini memberikan peningkatan pemberdayaan mitra berupa peningkatan pendapatan dengan produksi eco enzim dari limbah kulit buah target sebanyak 10 % (Rp.33.000.000/tahun) dari total pendapatan (Rp.330.000.000,-/tahun).
Investigation of Thermal Conductivity and Dynamics Viscosity of Green Nanofluids (ZrO2-SiO2) Ramadhan, Anwar Ilmar; Saptaji, Kushendarsyah; Hendrawati, Tri Yuni; Sari, Alvika Meta; Umar, Efrizon; Aziz, Azmairit; Semendo, Rifqi Putra; Setiawan, Hanif Rama Yuda; Firmansyah, Firmansyah
Jurnal Teknologi Vol 16, No 2 (2024): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.16.2.301-312

Abstract

In recent years, research has been directed towards improving the thermophysical properties of single-component nanofluids. Therefore, hybrid or composite nanofluids are developed to improve heat transfer performance. The thermophysical properties of ZrO2-SiO2 nanoparticles suspended in a mixture of water (W) and ethylene glycol (EG) with vol 60:40 or Green Nanofluids for various volume concentrations were investigated. Experiments were performed for volume concentrations of 0.1, 0.2, and 0.3% of green nanofluids at 50, 60, 70, and 80°C. Measurements of thermal conductivity and dynamic viscosity are performed at temperatures ranging from 50-80°C. The highest thermal conductivity of the green nanofluids is obtained at a concentration of 0.3%, and the maximum increase is up to 37.5% higher than the base fluid (EG/W). Meanwhile, evidence from the dynamic viscosity of green nanofluids is affected by concentration and temperature. Furthermore, the green nanofluids behave as a Newtonian fluid in a volume concentration of 0.1-0.3%. In conclusion, the combination of increased thermal conductivity and dynamic viscosity at a concentration of 0.3% has optimal conditions, which has more advantages for heat transfer than at other concentrations.
Pengaruh Massa Bioadsorben dari Klobot Jagung Terhadap Penurunan Kandungan Asam Lemak Bebas (FFA), Nilai Peroksida (PV) dan Tingkat Warna Dalam Minyak Sawit Mentah (CPO) Yustinah, Yustinah; Susanty, Susanty; Hendrawati, Tri Yuni; Fithriyah, Nurul Hidayati; Cardosh, Syafira R
Prosiding Seminar Nasional Teknik Kimia "Kejuangan" 2023: PROSIDING SNTKK 2023
Publisher : Seminar Nasional Teknik Kimia "Kejuangan"

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

Abstract

Indonesia as an agricultural country, produces many agricultural products. In addition to agricultural products, agricultural waste is also generated throughout the year. This agricultural waste is still underutilized. One of the efforts to utilize agricultural waste is to process agricultural waste into bioadsorbent. This study aims to study the effect of the mass of bioadsorbent from agricultural waste, namely corn husks on reducing levels of free fatty acids (FFA), peroxide value (PV) and color in crude palm oil (CPO). Clean corn husks are then mashed, after which it is reacted with NaOH to remove the lignin content and neutralized with HCl, so that a bioadsorbent is obtained. Crude palm oil is heated to 80 oC, then mixed with 2 to 10 grams of bioadsorbent according to the variables used. The mixture was stirred at 500 rpm for one hour, and the temperature was maintained at 80 oC. After the adsorption process is complete, the mixture is filtered using a vacuum pump and the filtrate is taken. The filtrate obtained was analyzed for free fatty acid content, peroxide value and color. The research resulted in the more mass of bioadsorbent used, the greater the decrease in free fatty acid levels, peroxide value and color. Using 10 g of bioadsorbent can reduce FFA levels by 41.29%, reduce PV values by 54.96% and reduce color absorbance by 29.06%.
Experimental investigation on stability and thermal conductivity of SiO2 nanoparticles as green nanofluids for application thermal system Ramadhan, Anwar Ilmar; Umar, Efrizon; Hendrawati, Tri Yuni; Sari, Alvika Meta; Rahardja, Istianto Budhi; Aziz, Azmairit; Firmansyah, Firmansyah; Yulianto, Sulis; Azmi, Wan Hamzah
SINERGI Vol 28, No 3 (2024)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/sinergi.2024.3.018

Abstract

In the last few years, much research has focused on the stability and improvement of the thermo-physical properties of single-component nanofluids. Some studies have not made many improvements to the stability and thermophysical properties of various types of green nanofluids from several variations of nanoparticles. Green nanofluids must be developed to improve heat transfer performance from their stability and thermal conductivity factors. Stability and thermal conductivity of Nano-silicate suspended in a base mixture of water /ethylene glycol with the ratio of 60:40, different volume concentrations were investigated. The experiments carried out were the stability of the green nanofluids investigated for volume concentrations of 0.1~0.3% and temperature conditions from 30 to 70°C for thermal conductivity measurement using TEMPOS Thermal Properties Analyzer. The experimental results showed that the stability analysis of the green nanofluids prepared by the UV-Vis method was stable up to 30 days after preparation with a sonication time of 1 hour with a ratio of 70-80%. The evaluation of the zeta potential for green nanofluids obtained a value of 33.57 mV with a moderate stability classification. The highest thermal conductivity for the green nanofluids was obtained at 0.3%, and the maximum increase was 17% higher than that of the base liquid (W/EG). Green nanofluids with a concentration of 0.1% gave the lowest effective thermal conductivity of 1.09 time at 70°C.
The Effects of Adding CaCOᴣ and Glycerol as Filler in The Synthesis of Bioplastic Made from Corn Starch Safira, Ajeng Listiani; Suffah, Nurullia; Hendrawati, Tri Yuni; Astuti, Erna
Journal of Chemical Process Engineering Vol. 9 No. 1 (2024): Journal of Chemical Process Engineering
Publisher : Fakultas Teknologi Industri - Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33096/jcpe.v9i1.97

Abstract

Plastic is one of the items widely used by the world's population, including in industry. Apart from being cheaper, plastic also has the advantage of being waterproof and having good strength to withstand the load carried. However, plastic has weaknesses in the decomposition process and can cause environmental pollution. Corn has a high percentage of starch content and is easy to cultivate in Indonesia, so corn has the potential to become one of the raw materials used in making bioplastics to reduce the plastic waste produced. This research aims to determine the effect of adding CaCOᴣ and glycerol fillers in synthesizing bioplastics from corn starch. The method applied in this research is pouring the solution. Based on research, the reaction to make bioplastic from corn starch with CaCO3 filler and glycerol is an esterification reaction. The higher the CaCO₃ content in bioplastics, the smaller the percent elongation value produced, the tensile strength properties will decrease, and this will result in the %w loss value decreasing. The low tensile strength is due to the presence of empty holes in the bioplastic product. Meanwhile, more glycerol will cause an increase in the percent elongation value, a decrease in tensile strength, and easy degradation. The bioplastic that has specification close to SNI standards was obtained using 5 ml of glycerol and 2 grams of CaCO₃ for 100 g of corn starch.
The effects of aloe vera gel addition on the effectiveness of sunscreen lotion Tri Yuni Hendrawati; Hana Ambarwati; Ratri Ariatmi Nugrahani; Susanty; Ummul Habibah Hasyim
Jurnal Rekayasa Proses Vol 14 No 1 (2020): Volume 14, Number 1, 2020
Publisher : Jurnal Rekayasa Proses

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.45247

Abstract

especially in cosmetics. The aloe plant that is cultivated in Indonesia to supply this industry is Aloe chinensis Baker. This research is to determine the effects of Aloe vera gel extract on the effectiveness of sunscreen lotion. The steps taken included Aloe vera gel extraction, flavonoid absorption test, sun protection factor (SPF) value measurement, pH test, viscosity test, homogeneity test, and organoleptic evaluation. The extract was added to the base sunscreen formulation at five different concentrations. UV-Vis spectrophotometry at 290 – 320 nm was performed on the preparations to determine their SPF values. The highest SPF value of 10.21 was found in the preparation containing 20% Aloe vera gel extract. This value falls within the national industrial standard for sunscreen SPF value range of 2 – 60. The research showed that a higher concentration of Aloe vera gel extract increased the pH, with the most elevated pH at 7.0 for the preparation containing 20% Aloe gel vera extract. This value also falls within the national pH standard for sunscreen of 4.5 – 8.0. The higher concentration of Aloe vera gel extract also increased the dispersive amount of the sunscreen preparation, with the highest value of 5 cm resulting from 20% Aloe vera gel extract addition. This research showed that the increased addition of Aloe vera gel extract resulted in higher SPF value.
Co-Authors Ade Nurul Hidayat Agdila, Alivia Fernanda Agung Siswahyu Agung Siswahyu Agus Priyanto Aini, Latifah Nur Alvika Meta Sari Andriyani Andriyani Anggaraini, Nisrina Harum Anwar Ilmar Ramadhan Arinda, Yosi Duwita Arthur Setyawan Fajar Athiek Sri Redjeki Ayu Candraningsih Azmairit Aziz Azmi, Wan Hamzah Azqia, Khalisya Nasywa Budiyanto Budiyanto Cakrawala, Orion Nawandie Cardosh, Syafira R Darto Darto Darto Darto, D Dedek Rahayu Deri Iryawan Desy Hijriyah Dimas Adhitya Rahman Dimas Yoga Pradipta Pratama Efrizon Umar Efrizon Umar Elvia Desiana Erdawati Erdawati Erdawati Erdawati Ericha Indriani Marjuki Erna Astuti Ery Diniardi Fachry Abda El Rahman Faisal Ismail Febri Yani Fiqih Azis Pangestu Firgi Adha Listanto Firmansyah Firmansyah Firmansyah Firmansyah Furqon Cipta Ismaya Furqon Cipta Ismaya Hakim, Rusnia Junita Hamza Mursandi Hana Ambarwati Hana Ambarwati Hardiman, Bayu Haryanto, Lorenta In Helfi Gustia Heri Setiono Heryanti Heryanti Hidayat, Sri hidayat, untung Ika Kurniaty, Ika Ilham Kurniawan Indra Budi Susetyo Ismiyati Ismiyati Ismiyati Ismiyati Ismiyati Ismiyati Ismiyati, Ismiyati Istianto Budhi Rahardja kadarisman, muhammad Kiki Rizky Ananda Kushendarsyah Saptaji Lemsoh, Jarunee Lusida, Nurmalia Miftah Andriansyah, Miftah Muh. Kadarisman Muhammad Kosasih Muhammad Reza Huseini Mutiara Salsabila Ninin Asminah Noni Noni Nurul Hidayati Fithriyah OKTA MAHENDRA, OKTA Oktariawan, Reddy Rahardja, Istianto Budhi Rahmawati Suryani Ramadhani, Annisyah Ratri Ariatmi Nugrahani Ratri Ariatmi Nugrahani Raynaldi Syarief Armanzah Renty Anugerah Mahaji Puteri Ribath Faruqi Rizalman Mamat Rohmat Mufti Ali Rosmi, Fitria Rusnia Junita Hakim Rusnia Junita Hakim Safira, Ajeng Listiani Sari, Fatma Semendo, Rifqi Putra Setiawan, Hanif Rama Yuda Shela Niken Wijayanti Siska Ayu Anggraini Suffah, Nurullia Sulis Yulianto Suratmin Utomo Suratmin Utomo Suratmin Utomo Susanty Susanty Susanty Susanty Susanty, Susanty Syamsudin AB Tria Astika Endah Permatasari Ummul Habibah Hasyim Ummul Habibah Hasyim Viki Febrianoca Wan Hamzah Azmi Wenny Diah Rusanti Wenny Diah Rusanti Wenny Diah Rusanti Wiwik Handayani Wiwik Handayani Wulan Wibisono Is Tunggal Wulan Wibisono Is Tunggal, Wulan Wibisono Wusono, Ciska Nabila wusono, ciska nabilah Wusono, Ciska Nabilla Yukarie Ayu Wulandari Yully Mulyani Yusril, Ariadi Yustinah Yustinah Zidni, Irfan Azka Zihan, Nurul