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All Journal BIOTROPIA - The Southeast Asian Journal of Tropical Biology World Chemical Engineering Journal JURNAL INTEGRASI PROSES Teknika: Jurnal Sains dan Teknologi Jurnal Kimia Terapan Indonesia Prosiding Konferensi Nasional PKM-CSR
Yeyen Maryani
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Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Materials Science & Nanotechnology Nursing Public Health Social Sciences Veterinary Other

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PEMBUATAN LEM LATEKS DARI LIMBAH STYROFOAM YANG DIGUNAKAN UNTUK KEMASAN MAKANAN Yeyen Maryani; Nufus Kanani; Rusdi Rusdi
Jurnal Teknika Vol 14, No 2 (2018): Edisi November 2018
Publisher : Faculty of Engineering, Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/tjst.v14i2.5873

Abstract

THE PHYSICOCHEMICAL PROPERTIES OF SEVERAL INDONESIAN RICE VARIETIES Susiyanti Susiyanti; Rusmana Rusmana; Yeyen Maryani; Sjaifuddin Sjaifuddin; Nanang Krisdianto; Mohamad Ana Syabana
BIOTROPIA - The Southeast Asian Journal of Tropical Biology Vol. 27 No. 1 (2020)
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11598/btb.2020.27.1.1030

Abstract

Rice has different varieties, with each variety possessing diverse physical and chemical characteristics. The objective of this study was to analyze the physicochemical properties of several Indonesian local rice varieties. The experiment was conducted from March to April 2017 at the Agriculture Applied Technology Laboratory of Agriculture Faculty, Universitas Sultan Ageng Tirtayasa and at the Laboratory of Food Analysis Services in the Food and Technology Department of IPB University. Nine local rice varieties from several areas in Indonesia were used as samples, namely; Jalahawara, Ciherang, Pandan Wangi, Rojolele, Sokan, Bendang Pulau, Batang Piaman, Cisantana, and Sidrap. Their physicochemical characteristics were analyzed based on some criteria such as: physical quality (weight, length, width, form, and percentage of chalkiness), and chemical content, water content, ash content, fat content, protein content, carbohydrate content, crude fiber content, starch, amylose, and amylopectin content. Data obtained were analyzed by one-way ANOVA using a Randomized Block Design. Jalahawara has the highest percentage of chalkiness.  Based on the ratio of length and width, Sidrap and Ciherang were categorized as medium type and the others were oval/round. The heaviest and lightest based on  the 1000-grain weight of rice were Ciherang and Bendang Pulau, respectively. The water content was about 2-4% for all samples. The highest and lowest amount of ash and fat content were found in Sidrap and Sokan, respectively.  The highest and lowest amount of protein content were found in Batang Piaman and Sokan, respectively. The highest and lowest  starch content were observed in Pandan Wangi and Ciherang. The content of amylose and amylopectin were highest in Batang Piaman. The rice samples were categorized into two groups of low and medium levels of amylose. The low level of amylose were observed in Cisantana, Ciherang, Pandan Wangi and Sidrap, and the medium level of amylose were observed in Jalahawara, Sokan, Bendang Pulau, Batang Piaman, and Rojolele.
Degradation of Oil Palm Empty Fruit Bunch (OPEFB) in Super-Critical Organic Solvents Affecting the Chemicals Distribution of Bio-Oil Rakhman Sarwono; Saepulloh Saepulloh; Brayen Brayen; Andreas Andreas; Yeyen Maryani
Jurnal Kimia Terapan Indonesia Vol 19, No 2 (2017)
Publisher : Research Center for Chemistry - LIPI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (83.956 KB) | DOI: 10.14203/jkti.v19i2.357

Abstract

Hydrothermal liquefaction (HTL) of oil palm empty fruit bunch (OPEFB) in different organic solvents (methanol, ethanol, acetone, toluene and hexane) to produce bio-oil were comparatively investigated. Experiments were carried out in an autoclave at different temperature of 300, 350 and 400 oC with a fixed solid/liquid ratio of 4 gram in 50 mL solvent, without catalysts and reaction time of 5 hours. The liquid products were analyzed using GCMS to determine the chemical composition. Result showed that the chemical compositions were greatly affected by the solvent types. Each solvent has a major component in bio-oil products. The major compounds resulted from methanol and ethanol solvent were ketones/others. The major compounds resulted from toluene and hexane solvents were organic acid, which favoured high temperature. Meanwhile, esters and organic acid were the major products from acetone solvents. Temperature operation resulted more variations in the chemical composition and the percentages of the bio-oil.
PENGELOLAAN SAMPAH RUMAH TANGGA DAN STOP BABS DI DESA WILAYAH KABUPATEN LEBAK BANTEN Rusmana Rusmana; Yeyen Maryani; M. Iman Santoso
Prosiding Konferensi Nasional Pengabdian Kepada Masyarakat dan Corporate Social Responsibility (PKM-CSR) Vol 4 (2021): Peran Perguruan Tinggi dan Dunia Usaha dalam Mewujudkan Pemulihan dan Resiliensi Masya
Publisher : Asosiasi Sinergi Pengabdi dan Pemberdaya Indonesia (ASPPI)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (188.853 KB) | DOI: 10.37695/pkmcsr.v4i0.1415

Abstract

Knowledge and skills in managing household waste and understanding the importance of stopping defecation must be mastered by the community, therefore improving skills to manage waste can be utilized and benefited as well as environmental hygiene and health through improving public health at large. The implementation method is carried out by workshops and conveying ideas through outreach activities and demonstrations to the community with household waste management using the concept of Sort-Collect-Benefit-Profit to reduce the volume of household waste and benefit the community, as well as triggering strategies which are a way to reduce household waste. volume of household waste and benefit the community, as well as triggering strategies which are ways to change individual hygiene and sanitation or community behavior on their own awareness by touching the feelings, mindset, behavior, and habits of individuals or communities, namely by providing health education to the community. This community service activity was carried out at the Bumi Katineung Rangkasbitung Hotel on September 3, 2021 with 30 participants involved in this activity consisting of representatives from 28 sub-districts in Lebak Regency, Banten Province. The achievement targets in this activity are increasing the ability of residents to manage household waste, the use of household waste for media, the importance of managing a waste bank, and the habit of stopping plant defecation. The results of this activity show that community members are very enthusiastic and have the potential to use household waste to make compost or recycle waste, and understand the importance of stopping defecation, simply. The follow-up of this activity is the formation of waste bank managers in various regions/villages and continuous counseling on the habit of stopping defecation by providing/constructing public or family latrines.
REVIU ARTIKEL: POTENSI TALAS BENENG (Xantoshoma Undipes K. Koch) SEBAGAI BAHAN PEMBUATAN BERAS ANALOG UNTUK DIVERSIFIKASI PANGAN DI INDONESIA Ati Sulastri; Yeyen Maryani; Sri Agustina
JURNAL INTEGRASI PROSES Vol 12, No 2 (2023)
Publisher : JURNAL INTEGRASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36055/jip.v12i2.22216

Abstract

Talas Beneng merupakan produk pangan lokal dari daerah Banten yang memiliki potensi besar dalam melaksanakan diversifikasi pangan, khususnya sebagai sumber bahan baku pembuatan pangan substitusi beras yaitu beras analog. Komposisi dan kandungan gizi yang cukup baik dari talas beneng merupakan faktor penting dalam pemanfaatannya untuk dapat digunakan sebagai pangan alternatif pengganti beras/nasi. Pada reviu ini dipaparkan mengenai sifat dan karakteristik tanaman talas beneng, beserta komposisi senyawa yang terkandung di dalamnya.
Temperature Effect on Corrosion Rate of Metal AA 5052 Using D-Galactose Inhibitors In Sulfuric Acid Media With Electrochemical Method I Gusti Ayu Arwati; Fikri Syahbana; Wiwit S.; Yeyen Maryani
World Chemical Engineering Journal VOLUME 6 NO. 2 DECEMBER 2022
Publisher : Chemical Engineering Department, University of Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.48181/wcej.v6i2.17079

Abstract

Aluminum Alloy 5052 (AA 5052) is a metal that can be used as a biopolar plate in proton exchange membrane fuel cell (PEMFC), because it has the advantages of being resistant to corrosion, high conductivity, easy shape and light weight. PEMFC produces electrical energy and the rest of the process in the form of hot water and steam. In a bipolar plate PEMFC environment corrosion can easily occur due to an acidic environment and high operating temperature around 40°C-80°C. For this reason, a treatment is needed to strengthen the corrosion-resistant properties of AA 5052. The coating of the material can be done using the technique of electrophoretic deposition (EPD) using green inhibitor to reduce the corrosion rate. The electrochemical method was carried out to see how much influence temperature had on the corrosion rate of AA 5052. In this study, d-galactose green inhibitor with a concentration of 0.5 g, EPD time of 20 minutes was used, in a PEMFC environmental simulation in 0.5 M H2SO4 sulfuric acid medium, with test temperatures of 25°C (room temperature), 40°C, 60°C, and 80°C. From the results of the analysis using the electrochemical method, there was an effect of temperature on the corrosion rate of AA 5052 without an inhibitor layer of 0.3610 mmpy at room temperature and increased at 80°C 3.9527 mmpy. While AA 5052 which was coated with a d-galactose inhibitor, had a corrosion rate of 0.1678 mmpy at room temperature and continued to increase at a temperature of 80°C 3.7745 mmpy. Inhibitor efficiency was 53.51% at room temperature and decreased with increasing temperature to 4.5% at 80°C.
Corrosion Analysis on AMS 4050 Aluminum Metal in an Extreme Acid Rain Environment by Weight Loss Method I Gusti Ayu Arwati; Sagir Alva; Arif Fadilah; Yeyen Maryani
World Chemical Engineering Journal VOLUME 5 NO. 2 DECEMBER 2021
Publisher : Chemical Engineering Department, University of Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.48181/wcej.v5i2.12613

Abstract

AMS 4050 aluminum metal which is a type of aluminum, with no Zn content, that composed of 5.7 - 6.7%Cu 2 - 2.6%, Mg 1.9 - 2.6%, Zr 0.15%, Si 0.15% and Mn 0.1% others 0.15% each. The advantage of aluminum is that it weighs only 2.7 gr / cm3, corrosion resistant, good electrical and heat transmitter, easy to fabricate or forge. This AMS 4050 material is widely used in the expansion industry to be used as an aircraft frame. MS 4050 aluminum is more resistant to cracking than other types of aluminum, however cracks can still occur due to corrosion due to acid rain. The test method used to calculate the corrosion rate is the weight loss method. The corrosion rate test results obtained with mean values for immersion of 1, 2, 3, and 4 weeks were 0.03, respectively; 0.07; 0.1 and 0.12 mg / cm2 h. EDX test results showed that the aluminum content in AMS 4050 metal decreased by 18.18%.
Co-Authors Andreas Andreas Arif Fadilah Ati Sulastri Brayen Brayen Fikri Syahbana I Gusti Ayu Arwati M. Iman Santoso Mohamad Ana Syabana Nanang Krisdianto Nufus Kanani Rakhman Sarwono Rusdi Rusdi Rusmana Rusmana Saepulloh Saepulloh Sagir Alva Sjaifuddin Sjaifuddin Sri Agustina Susiyanti Susiyanti Wiwit S.