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Yustinah Yustinah
Teknik Kimia Fakultas Teknik Univesitas Muhammadiyah Jakarta
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PEMANFAATAN ARANG AKTIF KULIT KACANG TANAH SEBAGAI ADSORBEN LOGAM KROMIUM III & VI DALAM AIR LIMBAH TEKSTIL Haryanto, Muhammad Zinedine; Yustinah, Yustinah
Prosiding Semnastek PROSIDING SEMNASTEK 2024
Publisher : Universitas Muhammadiyah Jakarta

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

Abstract

Umumnya, industri tekstil menghasilkan air limbah yang sangat berwarna dikarenakan mengggunakan berbagai warna tekstil. Oleh karena itu,perlunya pengolahan  air limbah tekstil ini sebelum dibuang ke lingkungan. Penelitian ini bertujuan untuk mengetahui penurunan kadar logam kromium 3 dan 6 pada air limbah industri tekstil dengan cara adsoprsi menggunakan arang kulit kacang tanah yang diaktivasi dengan aktivator HCl, H2SO4, dan HNO3 dengan waktu kontak 0, 1, 15, 30, 46, 60 menit. Proses awal penelitian yaitu  dengan mengoven kulit kacang tanah dengan suhu 102oC selama 2 jam, kemudian kulit kacang di perarang dengan suhu 450oC selama 90 menit lalu didinginkan. Kulit kangan tanah diaktivasi menggunakan HCl 4N; H2SO4 4N; HNO3 4N. Kemudian dilakukan uji karakteristik arang aktif kulit kacang tanah untuk menentukan dengan activator HCl 4N; H2SO4 4N; HNO3 4N sebesar kadar air (3,37%; 3,71%; 3,92%), kadar abu (2,47%; 2,88%; 3,21%), dan daya jerap terhadap iodine (327 mg/g; 292 mg/g; 214 mg/g). Selanjutnya arang aktif kulit kacang tanah digunakan sebagai biosorben dikontakkan dengan limbah cair industri dengan waktu kontak 0, 1, 15, 30, 45, 60 menit. Setelah itu campuran disaring dan hasil filtrat dianalisa dengan menggunakan Inductive Couple Plasma (ICP). Hasil penilitian menunjukkan bahwa biosorbent dari arang aktif kulit kacang tanah yang teraktivasi dengan HCl 4N, H2SO4 4N, HNO3 4N dengan lama waktu kontak 60 menit mampu menurunkan kadar logam krom III masing masing sebesar: 93,4%; 82,6%; 88,5% sedangkan untuk kadar logam krom VI masing masing sebesar: 76,1%; 78,1%; 64,9%. Hasil terbaik diperoleh dengan activator HCl 4N dengan lama waktu kontak 60 menit.Kata kunci: Efektivitas, Kulit Kacang Tanah, Limbah Industri Tekstil, Krom.
PELATIHAN PENGAJAR DAN PENGEMBANGAN PSIKOMOTORIK ANAK-ANAK MIGRAN DI SB AT-TANZIL HICOM KUALA LUMPUR MALAYSIA Nurhayati, Nurhayati; Astono, Ari Dwi; Yustinah, Yustinah; Syarif, Tiara Almas
Jurnal Abdimas Bina Bangsa Vol. 5 No. 2 (2024): Jurnal Abdimas Bina Bangsa
Publisher : LPPM Universitas Bina Bangsa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46306/jabb.v5i2.1276

Abstract

The continuity of the Cooperative business will not escape the problems that can be experienced in the future. If the Cooperative's problems are not immediately anticipated and resolved properly, it will be fatal to its sustainability. Therefore, strategic management and operational strategies in cooperative activities are very important to pay attention to. The purpose of the Community Service (PKM) activities at the Banyumanik Banyumanik Dairy Cooperative business in Semarang City is to provide strategic management assistance and operational strategies. This PKM uses the Participatory Action Research (PAR) method through strategic management and operations strategy assistance activities. The evaluation results of this PKM obtained the conclusion that knowledge of strategic management and operations strategy increased 80%, the ability of strategic management and operations strategy increased 75%, the ability to develop strategic management and operations strategy increased 84%, the skills to achieve competitive advantage through strategic management and operations strategy increased 90%, and the skills to develop and implement strategic management and operations strategy increased 90%.
Extraction Of Pipper Betle L. And Formulation Of Herbal Propolis Mouthwash Wusono, Ciska Nabila; Hendrawati, Tri Yuni; Nugrahani, Ratri Ariatmi; Yustinah, Yustinah
Journal of Applied Sciences and Advanced Technology Vol. 7 No. 3 (2025): 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.7.3.83-90

Abstract

Betel leaf (Pipper Betle L.) is a climbing plant that has many benefits. Betel leaves have long been used for fever therapy, cough, stomach cramps, anti-allergic, wound healing, antimicrobial, and antiproliferative. Extraction of betel leaves with green solvent requires optimization of the extraction time and percentage of betel leaves with water. Betel and propolis extracts need to be formulated to become an herbal propolis mouthwash. The purpose of this research (1). Getting the best time and percentage of betel leaves in the extraction into betel extract formulated to make herbal propolis mouthwash. (2). Getting the best formula for variations in the percentage of propolis in herbal propolis mouthwash, (3). Conduct a selectivity test to obtain the results of mouthwash as an antibiotic. Based on the results of this research with a comparison of the heating time of betel leaf extraction. Betel leaf extraction was carried out by the infusion method, and the extract was distilled with variations in the percentage of betel leaves of 2.5%, 5%, 7.5%, 10%, 12.5% , and 50% compared with water. The best heating time results for the best betel leaf extraction, based on the yield of betel leaf extraction and pH were 60 minutes. For the optimum betel leaf extraction results at a betel leaf concentration of 50%. Getting a yield value of 40% and pH 4.55 at an extraction time of 60 minutes. The research is still ongoing by conducting a test of the inhibition of Staphylococcus Aureus bacteria in herbal propolis mouthwash with variations in the percentage of propolis of 0%, 2.5%, and 5%.In the blank without the addition of propolis it does not inhibit bacteria Staphylococcus Aureus, the addition of 2.5% and 5% propolis to the herbal propolis mouthwash formula has been proven to inhibit bacteria Staphylococcus Aureus.
The Creative Economy-Based Advertising Language Yustinah, Yustinah; Jumai, Jumai
Eduvest - Journal of Universal Studies Vol. 5 No. 2 (2025): Eduvest - Journal of Universal Studies
Publisher : Green Publisher Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59188/eduvest.v5i2.44705

Abstract

This research took the theme of Creative Economy-based Advertisement Language of Economy Faculty at Universitas Muhammadiyah Semarang. This research analyzed the implementation of creative economy-based advertisement language. The research subjects were 165 students at the Economy Faculty of Universitas Muhammadiyah Semarang. Of all students, 91 students were from the undergraduate management program, 55 students from the undergraduate accounting program, 12 students from the non-regular management program, and 12 students from the non-regular accounting program. This descriptive research took the data by filling the instrument via Google form. The results showed the planning aspect with 52.47%, the implementation aspect with 53.6%, evaluation aspect with 53.3%. The results found the creative economy-based advertisement language at the faculty reached a percentage of 53.9%. The result indicated the balance between planning, implementing, and evaluating. The results were useful for the students in their complementary courses and learn autonomously.
The Literacy and Technological Digitalization Improvement Of Z-Generation yustinah, Yustinah; Setiawan, Anjar
Enrichment: Journal of Multidisciplinary Research and Development Vol. 2 No. 9 (2024): Enrichment: Journal of Multidisciplinary Research and Development
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/enrichment.v2i9.228

Abstract

The literacy and technology digitalization improvement for Z-generation is carried out as a realization of digital development in all sectors, including higher education. The improvement of literacy and the digitalization of technology for Z-generation were examined through stages that include (1) introduction; (2) objectives; (3) implementation; (4) steps; (5) materials; (6) references; and (7) assessment and final evaluation. The research subjects consisted of 465 students currently taking the Indonesian Language course, with details as follows: 45 Public Health A students; 46 Public Health B students; 42 Public Health C students; 34 Public Health D students; 42 D3 Nursing students; 86 Nutrition A students; 86 Nutrition B students; and 84 Medical students. Research method—data collection using Google Forms. The results of this study indicate that the improvement of literacy and technology digitalization is balanced between planning at 61.23%, implementation at 52.81%, and evaluation at 54.2%. This shows a balance between the improvement of literacy and the technology digitalization of Z-generation. Balance occurs between knowledge and skills and between theory and practice in the enhancement of literacy and the digitalization of Z-generation technology.
Implementation Of Religious Justice In Marketing The Products Of Central Java's Muhammadiyah Business Charities Juma'i, Juma'i; Yustinah, Yustinah
Return : Study of Management, Economic and Bussines Vol. 3 No. 8 (2024): Return : Study of Management, Economic And Bussines
Publisher : PT. Publikasiku Academic Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57096/return.v3i8.259

Abstract

The implementation of religious justice in Muhammadiyah Charity (AUM) can be seen from the perspective of its muamalah. Muhammadiyah Charity (AUM) provides benefits not only from which company is an Indonesian citizen and is Muslim or not. In Managerial, it is very open to be able to join both as an employee and as a control holder of the management of the Muhammadiyah Business Charity. The type of research used is field research, The subject in this study is Muhammadiyah charity (AUM) Central Java, The type of data needed in this study consists of primary data and secondary data, data collection methods with Interview or Interview Method, observation and documentation, Data analysis used is non-statistical analysis but with descriptive analysis. The implementation of religious justice in the marketing of Muhammadiyah charity products goes hand in hand with the vision and mission of an independent organization and moves in amar makruf nahi munkar. good management and management of the organization and employee performance based on the One and Only God and justice for all Indonesian people. The marketing of Muhammadiyah Charity products with religious justice can be seen from the way employees and partners are recruited, all are very open and can take part, not necessarily from within a certain company or organization. Equality and equality as part of religious justice can be based on the philosophy of ta'awun.
Increasing Student Literacy Abilities Supporting The Internship Program At The Faculty Of Economics, Muhammadiyah University, Semarang Yustinah, Yustinah; Sulthan, Faqih
Journal of Social Research Vol. 3 No. 6 (2024): Journal of Social Research
Publisher : International Journal Labs

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55324/josr.v3i6.2089

Abstract

This research improved the students' literacy skills based on management and accounting in supporting the internship program at the economic faculty of Universitas Muhammadiyah Semarang. The researchers improved literacy skills by preparing, promoting, and evaluating the treatment. The content of management and accountancy covered the managerial system, such as (1) planning, (2) implementing, (3) evaluating, and (4) empowering, starting from the plan, control, evaluation, and decision-making. The subjects consisted of the fifth semesters of the management study program and accountancy study program who joined the Indonesian language course. This descriptive statistic research collected the data from Google Forms. The results showed that planning obtained a percentage of 59.9%, implementation with 57.25%, and evaluation with 62.3%. The results indicated the students’ literacy skills needed improvements.
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"

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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%.
Nickel-Lanthanum Impregnated into Natural Zeolite as a Catalyst for Biofuel Production from Sunflower Oil via Hydrocracking Process Santiko, Erik Budi; Fauziah, Sarah; Priyanto, Sugeng; Yustinah, Yustinah; Marlinda, Lenny; Sudibyo, Sudibyo; Aziz, Abdul; Oktiarmi, Peri; Yati, Indri; Al Muttaqii, Muhammad
Bulletin of Chemical Reaction Engineering & Catalysis 2025: Just Accepted Manuscript and Article In Press 2025
Publisher : Masyarakat Katalis Indonesia - Indonesian Catalyst Society (MKICS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.9767/bcrec.20503

Abstract

The increasing demand for crude oil or fossil fuel as a raw material for oil fuel has been steadily rising over time in line with the development that is taking place in Indonesia. However, biofuels are potential vegetable fuels that can be developed as alternative energy because they are renewable and can be renewed to overcome the energy crisis in the future. For this purpose, a double metal catalyst (impregnated with nickel and lanthanum), is used to make biofuels from sunflower seed oil. The effect of metal ratio on the yield of biofuel products is the concern in this study. The temperature of hydrocracking process was 250-330 ℃ with ratio of metal 5% and 10% (metal ratio 1:1 and 1:2). X-ray diffraction (XRD) shows that natural zeolite has a clinoptilolite phase, X-Ray Fluorescence (XRF) shows that acid and base activation increases the Si/Al ratio from 4.5 to 5, Scanning Electron Microscope – Energy Dispersive X-Ray (SEM-EDX) shows images of natural zeolite surfaces in the form of aggregate pieces, and Brunauer Emmett Teller (BET) shows that acid and base activation increases SBET from 29.96 to 49.73 m2/g and forms a hierarchical natural zeolite. The impregnation of Ni-La/Zeolite catalyst has been successfully carried out using the incipient wetness impregnation method and the best catalyst results were obtained, namely Ni-La/Zeolite 10% (1:2) with a surface area of 15.33 m2/gram. The addition of Nickel and Lanthanum metals caused a decrease in the surface area and average pore diameter of the zeolite. The lowest surface area and average pore diameter were found in the variation of the Ni-La/Zeolite 10% (1:2) catalyst, namely 15.33 m2/gram and 13.99 nm. The highest hydrocarbon yield was found in the hydrocracking process with the Ni-La/Zeolite 10% (1:1) catalyst with gasoline, kerosene and gasoil fractions of 0.91; 0.39 and 8.32 (%wt), respectively. The hydrocarbon compound composition of the catalyst includes n-paraffin 4.43%, isoparaffin 0.21%, cycloparaffin 2.99% and olefin 2.71%.
Co-Authors Abdul Aziz Al Muttaqii, Muhammad Aliyah Aliyah Arifka, Angelia Ainun Athiek Sri Redjeki Bambang Hartono Cardosh, Syafira R Cheppy Asnadi Fatma Sari Fauziah, Sarah Fitri Nuryani Frima Viantini Frima Viantini, Frima Gitya Putri Novitasari Hartini Hartini Haryanto, Muhammad Zinedine Helfi Gustia Heri Hermansyah Heri Setiono Hudzaifah Hudzaifah Ismiyati Ismiyati Ismiyati Ismiyati Juma'i, Juma'i Jumai, Jumai Lenny Marlinda Luqman Buchori Maya Aprilia Misri Gozan Moh Djaeni Nabilah, Rifa Nurhayati Nurhayati Nurul Hidayati Fithriyah Peri Oktiarmi Prasasty Putri Solekhah R. R. Aisha Nastiti Rahayu R.R. Aisha Nastiti Rahayu Ratri Ariatmi Nugrahani Rizki Herawati Rosdiana Rosdiana Sampor Ali Santiko, Erik Budi Sarah Fauziah Sri Noviyanti Sudibyo Sudibyo Sugeng Priyanto, Sugeng Sugeng Santoso Sulthan, Faqih Suratmin Utomo Susanty Susanty, Susanty Syabilla Rachmadina Cardosh Syafira R. Cardosh Syamsudin AB Syamsudin AB Syamsudin Abdullah Syarif, Tiara Almas Tri Yuni Hendrawati Ukhtun Ba’diyah Ummul Habibah Hasyim Wahid Arinanto Nugroho Wike Maylani Wike Maylani Wulandari, Qodriani Apri Wusono, Ciska Nabila yati, indri Zuliani Zuliani