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All Journal Jurnal Rekayasa Proses International Journal of Renewable Energy Development Jurnal Kompetensi Teknik Jurnal Bahan Alam Terbarukan Rekayasa: Jurnal Penerapan Teknologi dan Pembelajaran Konversi Jurnal Rekayasa Bahan Alam dan Energi Berkelanjutan Jurnal Rekayasa Proses RANDANG TANA - Jurnal Pengabdian Masyarakat Kumawula: Jurnal Pengabdian Kepada Masyarakat Jurnal Ilmiah Cendekia Eksakta Jurnal Inovasi Teknik Kimia Jurnal Pengabdian Masyarakat: Darma Bakti Teuku Umar ASEAN Journal of Chemical Engineering Jurnal Pengabdian kepada Masyarakat Nusantara ABDIMASY: Jurnal Pengabdian dan Pemberdayaan Masyarakat PENGABDI: Jurnal Hasil Pengabdian Masyarakat REACTOR : Journal of Research On Chemistry And Engineering Journal of Industrial Community Empowerment Jurnal Teknik Kimia dan Lingkungan Sainteknol : Jurnal Sains dan Teknologi
Bayu Triwibowo
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Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Social Sciences Other

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Optimization of Anthocyanin Extraction from Cockspur Coral (Erythrina Crista-Galli L.) Petals with Microwave-Assisted Extraction (MAE) using Response Surface Methodology Astrilia Damayanti; Bayu Triwibowo; Megawati Megawati; Miftahuddin Azhari; Sandra Anggita Fadriana
ASEAN Journal of Chemical Engineering Vol 21, No 2 (2021)
Publisher : Department of Chemical Engineering, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ajche.63393

Abstract

Cockspur coral (Erythrina crista-galli L) petals are flowers that contain anthocyanins and active compounds of flavonoids and tannins. This study aims to determine the optimum conditions for the anthocyanin extraction process of cockspur coral petals using Microwave-Assisted Extraction (MAE), analyzed through the Response Surface Method (RSM). This process uses ethanol-hydrochloric acid solvents and a Box-Behnken experimental design involving three factors, namely the solvent ratios (w/v) (1:5, 1:15, and 1:25), microwave powers (300, 450, and 600 watts), and extraction times (3, 9, and 15 minutes). As a result, the second-order polynomial model was enhanced and sufficient to explain the variation of the data that denoted the significant correlation with the independent variables and the response. Derringer's desired function methodology was used for optimizing studies and generated ideal conditions for each or combined an independent variable.  The optimum anthocyanin extract of 5.82 mg/L was obtained at a power condition of 325,5 Watts, an extraction time of 3.05 minutes, and a solvent ratio of 20.5. Meanwhile, the operating conditions at a power of 310.8 Watts, a time of 14.94 minutes, and a solvent ratio of 24.96 resulted in the optimum color intensity (IC) of 1040.26. In the meantime, the optimum antioxidant activity was obtained at a power of 585.97 Watts, a time of 4.93 minutes, and a solvent ratio of 5.43 with IC50 of 0.115.
Pelatihan Pemanfaatan Ekstrak dari Limbah Eceng Gondok pada Pembuatan Hand Sanitizer sebagai Antiseptik Alami Haniif Prasetiawan; Bayu Triwibowo; Maharani Kusumaningrum; Zuhriyan Ash Siddieqy Bahlawa; Dewi Selvia Fardhyanti; Dewi Artanti Putri
Randang Tana - Jurnal Pengabdian Masyarakat Vol 5 No 3 (2022): Randang Tana - Jurnal Pengabdian Masyarakat
Publisher : Unika Santu Paulus Ruteng

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36928/jrt.v5i3.1289

Abstract

This article aims to describe the use of water hyacinth leaves as an ingredient for making hand sanitizers or natural antiseptic gels. Water hyacinth leaves will not cause microbial resistance due to the complexity of water hyacinth leaves containing flavonoids (luteolin, apigenin, tricin, chrysoeriol, kaempferol, azaeleatin, gossypetin, and orientin) and tannins contained in water hyacinth leaves are proven to be effective as antibacterial and antimicrobial agents. Based on this potential, water hyacinth leaves are very likely to be used as a natural antiseptic. The hand sanitizer produced in this activity has gone through a preference test on the community by looking at the preferences for color, thickness, moist impression, aroma (fragrance), and packaging. The teenager community in the RW 027, Batursari, Mranggen District, Demak Regency. With this activity, the teenager community can gain knowledge about the use of water hyacinth leaf extract as a natural hand sanitizer that is environmentally friendly and can make hand sanitizer products independently. Thus, the application of making water hyacinth leaf extract hand sanitizer can be applied in the area.
Pengaruh Variasi Kondisi Operasi pada Kolom Distilasi Ekstraktif terhadap Sifat Fisis Pelarut Hidrokarbon Terdearomatisasi Haniif Prasetiawan; Wara Dyah Pita Rengga; Dewi Selvia Fardhyanti; Bayu Triwibowo; Achmad Chafidz
REACTOR: Journal of Research on Chemistry and Engineering Vol 3, No 2 (2022): Published in December 2022
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/reactor.v3i2.60

Abstract

Solvent is one of the important components in chemical processes. The type of solvent that is often used in the paint and coating industry is a hydrocarbon-based solvent which consists of a diverse complex mixture of liquids and contains aliphatic, alicyclic and aromatic (C5-C8) elements. Aromatic hydrocarbons are environmental pollutants that are known to be toxic, carcinogenic and mutagenic, so a hydrocarbon-based solvent with an aromatic content of less than 1% is needed. An appropriate separation method for separating aromatic and nonaromatic components having close boiling points is extractive distillation with a sulfolane entrainer. In this study, a distillation system with a sulfolane entrainer was run using the process simulation software Aspen Plus with the aim of understanding the effect of the amount of sulfolane, feed stage and number of stages on the physical properties of hydrocarbon-based solvents. This simulation is focused on the variation of the ratio of sulfolane: crude feed (7:1, 7.5:1, 8:1, 8.5:1), the variation of the feed stage (10th stage to the 35th stage) and the variation of the number of stages (70, 75, 80). It was found that the number of stages did not affect the density and flash point of the solvent. An increase of number of stage will decrease the solvent flash point and density. Significant decreament also can be found when the sulfolane to crude feed ratio is increased. However, the physical properties of the current dearomatized solvent is close to the properties of commercial product namely SBP 65/70 from one of oil and gas companies.
Gerakan Pencegahan Stunting Melalui Pemberdayaan Masyarakat Dengan Mengadakan Sosialisasi Dan Edukasi Trianita Satyawati Nabilah; Gicha Maria Rahayu; Fauzan Amrulloh; Bayu Triwibowo
Jurnal Pengabdian kepada Masyarakat Nusantara Vol. 3 No. 2.1 Desember (2022): SPECIAL ISSUE
Publisher : Cv. Utility Project Solution

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (593.361 KB)

Abstract

Dampak stunting sangat buruk untuk masa depan anak, karena beresiko menurunkan kemampuan intelektual (IQ), terhambatnya kemampuan motorik, produktivitas, dan peningkatan risiko penyakit degeneratif di masa depan. pada 2021 berdasarkan data aplikasi elektronik-Pencatatan dan Pelaporan Gizi Berbasis masyarakat (e-PPGBM) angka stunting di Kabupaten Magelang mencapai 14,76 %. Persebaran angka stunting di Indonesia cukup merata di Indonesia, salah satunya di Desa Sawangargo, Kabupaten Magelang. Berdasarkan data posyandu, terdapat 148 anak mulai dari bayi hingga umur 5 tahun dan terdapat 23 anak di Desa Sawangargo yang terindikasi stunting. Terkait permasalahan tersebut, penulis berniat untuk memberikan informasi dan edukasi mengenai pencegahan stunting. Terdapat 4 tahap yaitu, pengukuran dan pendataan untuk mengetahui anak terindikasi stunting, sosialisasi tentang stunting dan perilaku hidup sehat, edukasi mencuci tangan dan kebersihan kuku, dan dilanjutkan dengan pembagian PMT ( Pemberian Makanan Tambahan ) kepada anak yang terindikasi stunting. Terkait PMT terdapat 2 macam yaitu PMT penyuluhan dan PMT pemulihan, keduanya memiliki tujuan yang sama yaitu untuk memenuhi kebutuhan zat gizi yang dibutuhkan oleh balita. Dengan adanya progam tersebut penulis berharap, permasalahan stunting di Indonesia dapat berkurang.
Review Pemanfaatan Design Expert untuk Optimasi Komposisi Campuran Minyak Nabati sebagai Bahan Baku Sintesis Biodiesel Reshita Amalia Ramadhani; Dody Herdian Saputra Riyadi; Bayu Triwibowo; Ratna Dewi Kusumaningtyas
Jurnal Teknik Kimia dan Lingkungan Vol. 1 No. 1 (2017): October 2017
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (768.923 KB) | DOI: 10.33795/jtkl.v1i1.5

Abstract

Mixing different types of vegetable oils for synthesis of biodiesel is one of the efforts for renewable alternative energy. Mixed oil of vegetable oils more potential because it is not difficult to finding raw materials and not useful yet. Vegetable oils mixture as raw materials used include: Jatropha curcas oil, nyamplung oil and waste cooking oil. The mixed and optimized compositions use the simplex lattice design method with a total mixture. The data to be obtained is the influence data of each mixed oil to decrease of FFA during esterification reaction. Simplex lattice design method is one of the methods available in the software Design Expert 10.0. The designs used to optimize the formula on different amounts of different material compositions. The biodiesel synthesis is run based on the experimental design produced by the Expert Design 10.0 program. The use of lattice simplex method design: determination formula, optimizing formulation variable and total number of runs, keeping total concentration constant. ANOVA (Analysis of variance) to determine the significance of response analysis among variables and can know the suggested model. Desirability is a method that shows the program's ability to meet the criteria specified in the final product. The desired value that is critical to the desired product improvement program is so perfect.
Sintesis Nanoenkapsulasi Ekstrak Kulit Durian dengan Metode Spray Drying dan Aplikasinya sebagai Biopestisida: Review Nina Hartini; Syarifatur Richana; Bayu Triwibowo; Nur Qudus; Ratna Dewi Kusumaningtyas
Jurnal Teknik Kimia dan Lingkungan Vol. 2 No. 2 (2018): October 2018
Publisher : Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (397.298 KB) | DOI: 10.33795/jtkl.v2i2.61

Abstract

Indonesia sebagai negara agraris, sebagian penduduk Indonesia bermata pencaharian di bidang pertanian. Pada umumnya, masyarakat menggunakan pestisida untuk membasmi hama. Karena tingginya penggunaan pestisida maka WHO (2016) menyatakan kasus keracunan pestisida mencapai 193.000 jiwa selama tahun 2012. Untuk mengatasi permasalahan tersebut, biopestisida menjadi bahan alternatif pengganti pestisida karena lebih aman dan ramah lingkungan. Salah satu bahan alam yang berpotensi sebagai biopestisida adalah kulit durian. Rata- rata produksi durian setiap tahunnya 780.032,8 ton/tahun. Limbah kulit durian memiliki berat 60-75% dengan kandungan senyawa metabolit sekunder relatif tinggi belum termanfaatkan secara maksimal. Senyawa tersebut dimanfaatkan sebagai antioksidan dan antimikroba dalam proses pembasmi hama. Biopestisida yang dikembangkan dengan metode sokletasi menghasilkan ekstrak berbentuk cair. Namun, hasil tersebut kurang efektif dan mudah teroksidasi sehingga menurunkan keefektifitasan kadar bahan aktif. Mengatasi masalah tersebut maka perlu dikembangkan inovasi dengan proses enkapsulasi. Artikel ini me-review pengembangan metode enkapsulasi. Metode yang dapat digunakan untuk enkapsulasi biopestisida yaitu ekstrusi, spray chilling dan spray drying. Metode spray drying lebih berpotensi mengenkapsulasi biopestisida dari kulit durian karena memiliki efisiensi enkapsulan lebih tinggi dan hampir mendekati 100%. Distribusi ukuran partikel yang dihasilkan tergolong nanoenkapsulan. Indonesia as an agrarian country, most of Indonesia's people work in agriculture. In general, people use pesticides to eradicate pests. Due to the high use of pesticides, WHO (2016) stated the case of pesticide poisoning reach 193,000 in 2012. To solve the problem, Biopesticide as an alternative of synthetic pesticides because it’s more safe and environmentally friendly. One of the natural ingredients that potentially as biopesticide is durian peel. The average durian production per year is 780,032.8 tons/year. Durian peels waste weighs 60-75% with a relatively high contains of secondary metabolite not yet fully utilized. It’s used as antioxidants and antimicrobials in pesticides. Biopesticide is developed by socletation method. However, the results are less effective because it’s easily oxidized, so reduce the flavonoid efectiveness. To solve this problem, to be developed innovation with encapsulation process. This article reviews the development of encapsulation methods. Methods that can be used for biopesticide encapsulation are extrusion, spray chilling and spray drying. Spray drying method is more likely to encapsulate biopesticides because it has higher encapsulation efficiency and is close to 100%. The resulting particle size distribution is classified as nanocapsul.
Optimization of The Aqueous Enzymatic Extraction (AEE) of Rice Bran Oil With Cellulase Using Response Surface Methodology Astrilia Damayanti; Bayu Triwibowo; Megawati Megawati; Ahmed Tessario Ekanuramanta; Harianingsih Harianingsih; Kevin Thomas; Nurul Huda; Nuryoto Nuryoto
Jurnal Bahan Alam Terbarukan Vol 12, No 1 (2023): June 2023 [Nationally Accredited - Sinta 2]
Publisher : Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/jbat.v12i1.42137

Abstract

Rice Bran Oil (RBO) is an oil extracted from rice bran with unsaturated fat content according to World Health Organization (WHO) standards. The enzymatic extraction process of rice bran for oil extraction using cellulase enzymes is considered effective because it is capable of producing oil. Parameters of temperature and incubation time have an influence on the yield of oil produced. So that research is needed regarding the optimum conditions of the enzymatic extraction process including temperature and incubation time on the yield and levels of FFA RBO.Software Design Expert was used in this study to optimize RBO extraction with cellulase using the Response Surface Methodology (RSM) method in the Central Composite Design (CCD) factorial experimental design. The selected independent variables consisted of incubation temperatures, namely 35, 50, and 65 0C and incubation time for 2, 3, and 4 hours. The results show that the RBO yield is 1.7% and the minimum target for FFA levels is 8.4% at a temperature of 51.5 0C with an incubation time of 4 hours. Processing data with Design expert software produces an analysis of ANOVA experimental data. Incubation time has a significant level (p0.05) on RBO yield and incubation temperature has a significant level (p0.05) on RBO FFA.
Implementasi Digital Marketing dalam Meningkatkan Strategi Pemasaran Produk UMKM di Kelurahan Mangunharjo Kota Semarang Zuhriyan Ash Shiddieqy Bahlawan; Megawati Megawati; Bayu Triwibowo; Haniif Prasetiawan; Dwi Prasojo; Fauzan Amrullah; Dyta Silvia Mayasari
Journal of Industrial Community Empowerment Vol 2, No 2 (2023): Published in October 2023
Publisher : Politeknik ATI Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52759/jice.v2i2.210

Abstract

Micro, Small and Medium Enterprises (MSMEs) in Indonesia are the largest business units that support the country's economy. In Mangunharjo District, Tugu District, Semarang City, there are several groups of MSMEs which are mainly engaged in the food processing industry. However, MSME owners face various challenges, such as a lack of marketing methods. As a result, many MSMEs only produce food products when there is an order and rely on consignment at the nearest shop for a limited period of time. This problem requires a solution that can overcome the concerns of MSME owners, one of which is by changing marketing methods. Currently, MSMEs in the regions only rely on traditional marketing methods. By holding training activities for the public about the benefits of digital marketing, it is hoped that MSME owners can change their perspective and adopt more modern marketing methods. Through evaluations carried out after training, the MSME group has started to utilize digital platforms to market their products. The results show that MSMEs are starting to get used to digital marketing to increase sales value.
EFFECT OF PH AND ADSORBENT DOSES ON MN (II) METAL ADSORPTION IN THE KALIGARANG RIVER SEMARANG CITY USING SYNTHETIC COCONUT SHELL POWDERED ACTIVATED CARBON (PAC) Pradnya, Irene Nindita; Triwibowo, Bayu; Wulansarie, Ria; Hanifah, Ririn; Prakasita, Iffat Ganjar Fadhila
CENDEKIA EKSAKTA Vol. 8 No. 1 (2023)
Publisher : Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/ce.v8i1.7578

Abstract

Kaligarang River is the largest river in the Semarang, which looks clear but actually containing Mn metal above the permitted threshold. Excessive presence of Mn metal can cause problems for human being, which can agglomerate inside the brain, liver, and kidneys.Moreover, it can lead to Parkinson's syndrome and damaging the central nervous system. The river water sample testing conducted at Tirta Moedal PDAM, Semarang; contaminated with heavy metal Mn of 1.075 mg/L. Based on Government Regulation No. 82 of 2001, the maximum allowable concentration of Mn in water is 0.1 mg/L. Adsorption with activated carbon is an effective and efficient method in processing Mn metal pollution. Activated carbon formed as powderis from coconut shell synthetic, with trademark Haycarb particle size of 500 microns. The adsorption process was carried out with a contact time of 90 minutes with a stirring speed of 210 rpm. The pH variables were pH 3, 7, and 12 and the adsorbent dose was 1, 5, 10 and 15 g /L. The adsorption results showed that the optimum conditions of the adsorption process occurred at pH 3 with an adsorbent dose of 15 g / L with percent absorption of manganese metal (Mn) of 87.18%.
Diversifikasi Olahan Susu Sapi Segar Menjadi Produk Kefir untuk Minuman Probiotik dan Masker Wajah di Kelurahan Plalangan Gunungpati Semarang Prasetiawan, Haniif; Triwibowo, Bayu; Kusumaningtyas, Ratna Dewi; Bahlawan, Zuhriyan Ash Shiddieqy; Widyastuti, Catur Rini
Jurnal Pengabdian Masyarakat: Darma Bakti Teuku Umar Vol 4, No 2 (2022): Juli-Desember
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/baktiku.v4i2.5691

Abstract

Plalangan Village is one of the villages that produce fresh cow's milk in the administrative area of Gunungpati District, Semarang City, Central Java Province. The average daily activity of residents of Terwidi Village RT02 RW04, Plalangan Village, Gunungpati District, Semarang City in particular is raising cattle. The number of cattle breeders is 40 people who are members of the Ngudi Rahayu Terwidi Dairy Cattle Group (KTSP). The current number of cows is 75 heads, much lower than 5 years ago. The decline in the number of cows is due to the fact that they think that a dairy business that only relies on dairy products does not provide a steady income. Even though there is a lot of potential that can be developed from the dairy cattle business, including the diversification of dairy products. Kefir is a heterofermentative fermented product that has a taste, color and texture that resembles yogurt and has a distinctive aroma like tape. Kefir products circulating in the community today are not only consumed as probiotic drinks but can also be used as cosmetic products, such as masks. The main program will be carried out by the Community Service (PKM) team by empowering dairy cattle businesses through diversification of fresh cow's milk products to become high-value products, namely kefir which can be used as probiotic drinks and face masks.
Co-Authors A Halim Abdul Halim Abdul Halim Achmad Chafidz Ahmed Tessario Ekanuramanta Aldiansar , Divifan Armyko Alfiansyah Aji Pratama Amin Retnoningsih Amrullah, Fauzan Anggun Septiamurti Annie Mufyda Rahmatika, Annie Mufyda Asnafi, Agus Astrilia Damayanti Bahlawan, Zuhriyan Ash Shiddieqy Cahyani, Novia Noor Catur Rini Widyastuti, Catur Rini Chafidz, Achmad Dewi Artanti Putri Dewi Selvia Fardhyanti Dhoni Hartanto Dody Herdian Saputra Riyadi Dody Herdian Saputra Riyadi Dwi Prasojo Dyta Silvia Mayasari Fauzan Amrullah Fauzan Amrulloh Fauziah, Whilda Fidyawati, F Gicha Maria Rahayu Hadiyanti, Luthfia Nur Haniif Prasetiawan Harianingsih, Harianingsih Heni Pujiastuti Hidayah, Uswatun Nur Kevin Thomas Kusuma, Andre Dianata Hogi Laraswati, Vivi Anggraeni Loveyanto, Rendy Okta Maharani Kusumaningrum Maksiola, Masni Mayasari, Dyta Silvia Megawati Megawati - Megawati Megawati Megawati Megawati Megawati Megawati Megawati Megawati Mezaki, Naufal Mudrik Miftahuddin Azhari Muhammad Fikri Al Ghifari Mutaqin, Afrizal Mai Ngabiyanto - Nina Hartini Nina Hartini Nur Qudus Nurazizah, Nilasari Nurul Huda Nuryoto Nuryoto Paramita, Oktavianti Pradana, Daffa Zamiira Pradnya, Irene Nindita Prakasita, Iffat Ganjar Fadhila Prasojo, Dwi Prayoga, Ade Bintang Prima Astuti Handayani Puspita, Dessy Ratna Putri, Dwiana Asmara Putri, Raden Rara Dewi Artanti Radenrara Dewi Artanti Putri, Radenrara Dewi Artanti Rahardjo, Teguh Hardi Ratna Dewi Kusumaningtyas Reshita Amalia Ramadhani Reshita Amalia Ramadhani Ria Wulansarie, Ria Rizki, Angela Dita Salwa, Dian Fatimatus Sandra Anggita Fadriana Sa’adah, Nur Sinta Andriyani Solichin Solichin Syarifatur Richana Syarifatur Richana Syifa Karimah Trianita Satyawati Nabilah Wara Dyah Pita Rengga Zefanya Pradiza Zuhriyan Ash Siddieqy Bahlawa