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All Journal Rekayasa Mesin Agrokreatif Jurnal Ilmiah Pengabdian kepada Masyarakat AGRITEPA: Jurnal Ilmu dan Teknologi Pertanian Jurnal IPTEK Jurnal Rekayasa Bahan Alam dan Energi Berkelanjutan Journal of Research and Technology SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan IJEMS (Indonesian Journal of Environmental Management and Sustainability) Chemistry Indonesian Journal of Chemical Research ASEAN Journal of Community Engagement G-Tech : Jurnal Teknologi Terapan Abdimasku : Jurnal Pengabdian Masyarakat Nusantara Science and Technology Proceedings Community Empowerment Envirous AJARCDE (Asian Journal of Applied Research for Community Development and Empowerment) Jurnal Pengbdian Teknik Mesin Madani: Jurnal Pengabdian Masyarakat dan Kewirausahaan JURNAL REKAYASA KIMIA & LINGKUNGAN
Pujiastuti, Caecilia
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REMOVAL IMPURITIS GARAM DENGAN METODE PERTUKARAN ION SECARA BATCH Pujiastuti, Caecilia; Yustina Ngatila
Journal of Research and Technology Vol. 5 No. 1 (2019): JRT Volume 5 No 1 Jun 2019
Publisher : 2477 - 6165

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Abstract

Salt is one of the consumer and industrial consumption products that has the maincontent of sodium chloride (NaCl). The present quality of the salt product currentlycontains about 90-93% sodium chloride, and the other is known as an impurities ofcalcium (Ca), magnesium (Mg), potassium (K) and sulfate (SO4) ions. The presence ofthese impurities will decrease the quality of the salt product, so a method is needed todecrease the content of impurities in the salt product. One of the methods that can beused to reduce the levels of impurities such as Ca, Mg, K, and sulfate (SO4) ions in saltsolution is ion exchange method. In this study we studied the effect of cation resinamount (50-150) grams per liter of salt solution and anion solution (150 grams) andcontact time (5-25) minutes on removal of Ca, Mg, K and SO4 ions. The study wasconducted in a stirred tank with a fixed rotation speed of 200 rpm, and the initial qualityof the salt solution contained Ca ions: 0.07%, Mg: 0.09%, K: 0.04% and SO4: 0.4%.Based on the result of the research, the removal of Ca ion: 93.6%, Mg: 78.93%, K:25.00% dan SO4: 85.47 % at condition of cation resin amount: 150 gram/liter andcontact time 25 minutes.
Study of Making Potassium Posphate from Seaweed Industrial Wastewater Pujiastuti, Caecilia; Sumada, Ketut; Ngatilah, Yustina; Widya P, Vika; Arief S, Purwanto
Nusantara Science and Technology Proceedings 1st International Conference Eco-Innovation in Science, Engineering, and Technology
Publisher : Future Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/nstp.2020.0526

Abstract

Seaweed industrial wastewater which contains 17.9% potassium can be used as a raw material for making multi-nutrient fertilizers. 1 liter of wastewater is reacted with 1 N phosphoric acid with a certain volume (15, 20, 25, 30, 35 ml) and 30 ml of aluminum sulfate (17,18,19,20,21%) stirred at a speed of 35 rpm for 25 minutes. The precipitate formed is dried. The results showed that the greater the volume of acid and the concentration of aluminum sulfate added with fertilizer obtained and the K, P, and S ion content was getting smaller. Fertilizer produced with the highest content of K ions (9.3%), P ions (9.7%), and S (9.295%) was obtained in the addition of 17% Aluminum Sulfate coagulant and 15 ml volume of H3PO4 (1N), and fertilizers produced weighing 4.0128 grams.
Karakteristik Densitas Dan Indeks Bias Minyak Atsiri Daun Jambu Kristal (Psidium Guajava) Menggunakan Metode Microwave Hydrodistillation Dengan Variabel Daya Dan Rasio Bahan : Pelarut Erliyanti, Nove Kartika; Priyanto, Anugerah Dany; Pujiastuti, Caecilia
Jurnal Rekayasa Mesin Vol 11, No 2 (2020)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2020.011.02.11

Abstract

Crystal seedless guava is a new horticultural commodity that is cultivated in Indonesia and has many benefits. Crystal seedless guava has the potential of essential oil to be extracted from the leaves. Extraction using the microwave hydrodistillation method is an alternative to improve the efficiency and effectiveness of the essential oil extraction process. The purpose of this study was to determine the effect of microwave power and the feed to solvent ratio toward the characteristics of density and refractive index of essential oil from crystal seedless guava leaves. The reduced size crystal seedless guava leaves were extracted by microwave using aquadest as solvents with the feed to leaves. The ratio of feed to solvents used in this study was 1:4, 1:5, 1:6, and 1:7 (weight/volume or w/v). The second variables were performed using various microwave powers of 300, 450, and 600 Watts. The extraction conditions were carried out at ± 100 oC at one atmospheric pressure for three hours. The results showed that microwave powers and material to solvent ratios had significantly effect toward the density of essential oil from crystal seedless guava leaves. However, the variables had no significant difference in the value of the refractive index. The higher number of microwave powers and the solvent to feed ratios had a higher number of density. The highest density and refractive indexes were 0.948 grams/ml and 1,49862, respectively. The best extraction condition to extract the essential oil from crystal seedless guava leaves using microwave hydrodistillation was performed by microwave power of 600 Watt with 1:7 (w:v) as leaves to solvent ratio.
Ceramic Industry Wastewater Treatment by Chemical Coagulation Process Pujiastuti, Caecilia; Egita Yulisningtyas; Ira Pareira
Journal of Research and Technology Vol. 7 No. 2 (2021): JRT Volume 7 No 2 Des 2021
Publisher : 2477 - 6165

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Abstract

Ceramic industrial waste contains organic compounds and several heavy metals that exceed the quality standards of ceramic industrial wastewater, therefore the wastewater is treated using the coagulation method. This study uses a coagulant Poly Aluminium Chloride (PAC) with the aim to determine the effect of coagulant mass and stirring time on reducing the content of COD, TSS, lead metal (Pb), and colour. Starting with the waste mixed with PAC has been diluted with a concentration of 1%. Then stirred using a flocculator with a speed of 100 rpm and time (2, 4, 6, 8, and 10 minutes) to form floc. Then it is deposited and separated between the filtrate and the solids. Then the filtrate was analysed. With this analysis, it can be seen that the highest reduction efficiency of TSS levels was 99.9% with a coagulant volume of 12.5 ml at 6 minutes. The highest efficiency of COD levels was obtained at 98.23% with a coagulant volume of 15 ml at 6 minutes. The highest efficiency of waste colour reduction was 99.85% with a coagulant volume of 15 ml at 10 minutes and the efficiency of reducing Pb levels was 99.10% with a coagulant volume of 5ml at 2 minutes, all of which were below the quality standard ceramic industry.  
Analisa Business Modal Canvas Bisnis Selai Salak di Desa Galengdowo, Kecamatan Wonosalam, Kabupaten Jombang Kusuma, Prasdinata Meidaus; Pujiastuti, Caecilia
Madani: Jurnal Pengabdian Masyarakat dan Kewirausahaan Vol. 2 No. 2 (2024): Januari 2024
Publisher : LPPM Universitas Internasional Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37253/madani.v2i2.8926

Abstract

Sebagai desa yang berada di dataran tinggi Desa Galengdowo yang berada di kecamatan Wonosalam, Kabupaten Jombang ini banyak menghasilkan produk perkebunan terutama buah -buahan. Desa ini memiliki berbagai macam hasil perkebunan seperti durian, salak, manggis, rambutan, vanili, cengkeh, dan lain-lain, namun masih ada beberapa pemanfaatan yang masih bisa lebih di maksimalkan. Salah satu cara pengawetan makanan yang dapat diterapkan pada buah salak ini ialah dengan penambahan gula sebagai pengawet alami. Dari hal tersebut maka salak dapat diolah menjadi selai salak. Hal ini tentunya sangatlah tepat dikarenakan pengolahan salak menjadi selai akan menambah masa simpan buah tersebut dan nilai jual nya dengan dibantu kemasan yang menarik tetapi tidak mengurangi rasa asli dari salak tersebut. Dalam memulai suatu usaha alangka baiknya perlu melakukan analisis terlebih dahulu. Analisis bisnis merupakan metode yang ramai digunakan oleh perusahaan dalam bisnisnya. Business Model Canvas (BMC) menjadi metode analisis model bisnis dengan penyajian data yang sederhana namun menyeluruh terhadap sembilan komponen esensial pada bisnis. Meskipun sederhana, BMC dapat membantu perusahaan untuk mendapatkan fokus terhadap bisnis yang akan dijalani perusahaan tersebut. Produk ini juga menjadi salah satu alternatif petani salak untuk meningkatkan nilai jual dari hasil perkebunan, selain itu pembuatan selai salak juga bermanfaat ketika harga salak dipasaran turun sehingga bisa dibuat prosuk selai salak dengan harga yang stabil.
INOVASI PERMEN DARI KULIT PISANG UNTUK MENGURANGI LIMBAH KULIT PISANG DI DESA GALENGDOWO, WONOSALAM, JOMBANG Puput Srianah, Puput Srianah; Pujiastuti, Caecilia
abdimesin Vol. 3 No. 2 (2023): Abdi-mesin
Publisher : UPN "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/abdimesin.v3i2.63

Abstract

Kulit pisang mengandungan karbohidrat sebesar 18,5%. Kandungan karbohidrat tersebut menyebabkan kulit pisang berpotensi untuk diolah menjadi tepung sebagai bahan pangan yang memiliki banyak manfaat untuk kesehatan manusia. Dari tepung kulit pisang dapat dimanfaatkan menjadi permen. Perwarna yang digunakan yaitu dari buah naga karena mengandung zat warna merah yang bisa membuat warna menarik pada makanan. Melalui kegiatan Bina Desa Kelompok 8 membuat inovasi permen dari kulit pisang yang kemudian akan disosialisasikan kepada masyarakat. Kegiatan Bina Desa ini dilakukan di Desa Galengdowo, Kecamatan Wonosalam, Kabupaten Jombang. Untuk mendapatkan data dilakukan dengan teknik observasi, wawancara dan dokumentasi. Peserta yang mengikuti kegiatan sosialisasi inovasi permen dari kulit pisang ini diikuti sebanyak oleh 50 orang. Sosialisasi berjalan dengan lancar karena adanya minat dan antusiasme peserta sosial dalam memperoleh materi yang diberikan serta membuat warga tertarik untuk membuat sendiri permen dari kulit pisang dan juga dapat memanfaatkan limbah kulit pisang dengan baik dan bijak.
Inovasi Pengolahan Bunga Kopi Menjadi Produk Pangan Berupa Sirup Sebagai Upaya Peningkatan Nilai Guna Limbah Di Desa Galengdowo, Wonosalam, Jombang Rachmawati, Fadiatul; Pujiastuti, Caecilia
abdimesin Vol. 4 No. 1 (2024): Abdi-mesin
Publisher : UPN "Veteran" Jawa Timur

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/abdimesin.v4i1.65

Abstract

Potensi sumber daya alam hayati yang melimpah di desa galengdowo dapat dimanfaatkan oleh warga sekitar untuk memaksimalkan kemajuan desa tersebut. Kopi merupakan salah satu tanaman unggulan di desa galengdowo selain durian dan salak. Jenis kopi yang tumbuh di desa tersebut adalah kopi ekselsa dan kopi robusta. Dari pemanenan biji kopi ini menghasilkan limbah di area panen berupa bunga kopi. Namun, dewasa ini belum banyak yang mengetahui bahwa bunga kopi dapat dijadikan produk yang memiliki nilai jual apabila diolah dengan baik. Bunga kopi mempunyai aroma yang harum yang menandakan bahwa bunga ini mengandung minyak atsiri sehingga dapat diekstraksi. Tujuan dari kegiatan ini adalah untuk memberikan inovasi pengolahan limbah bunga kopi menjadi produk sirup. Pelaksanaan kegiatan dilakukan di Dusun Plumpung, Desa Galengdowo, Kecamatan Wonosalam, Kabupaten Jombang. Metode yang digunakan dalam kegiatan pengabdian masyarakat ini meliputi survei dan wawancara pada salah satu petani kopi di desa galengdowo serta melakukan kegiatan sosialisasi kepada warga sekitar. Hasil kegiatan ini berupa produk sirup bunga kopi yang telah dikemas dan berlabel sehingga memiliki nilai jual yang tinggi, kemudian produk ini disosialisasikan dan menerima respon yang positif dari masyarakat. Kegiatan ini dapat menjadi referensi bagi masyarakat untuk mengembangkan sirup bunga kopi guna mendukung kemajuan peningkatan ekonomi desa galengdowo.
KINETIKA REAKSI PEMBENTUKAN TRIKALSIUM PHOSPHATE (Ca3(PO4)2) DARI KALSIUM KARBONAT BERBAHAN BAKU CANGKANG KUPANG PUTIH Pujiastuti, Caecilia; Nofitasari, Luluk; Erfani, Rif’atul Firda
Journal of Research and Technology Vol. 6 No. 1 (2020): JRT Volume 6 No 1 Jun 2020
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (713.172 KB) | DOI: 10.55732/jrt.v6i1.149

Abstract

The development of the health sector to search alternatife material bone’s repair is increasing. Bone is a natural composite containing 60% minerals, 30% matrix, and 10% water. The component of bone mineral is calcium phosphate. Tricalcium phosphate is the type of calcium phospate that used because it has chemical component’s as like bone’s component. In this study, white mussel shell was chosen as a source of calcium and H3PO4 as a solvent. The aim of this research was determining reaction kinetics of tricalcium phospate synthesis from white mussel shells. The research was started by dissolving 50 grams of white mussel shell in 1 L of H3PO4 3% at reaction time with variation 2, 4, 6, 8, 10 minutes and reaction temparature with variation 40, 50, 60, 70, 80oC and then filtered. The filtrate was analyzed for the content of phosphoric acid while the residue was calcined at 900oC for 5 hours to remove the water. The reaction rate increased with increasing time and temperature. The highest phosphate acid conversion was obtained at a temperature of 80 ° C, with a reaction time of 10 minutes is 90.92%. The controlling step that controlled tricalcium phosphate synthesis from white mussel shell followed pseudo first-order equation with the Arrhenius equation.The results of XRD analysis found that89%of Ca3(PO4)2was formed.
The Kinetics Reaction of Phosphoric Acid Formation from Cow Bone Pujiastuti, Caecilia; Yustina Ngatilah; Muhammad Septianto; Angelia Tantyono
Journal of Research and Technology Vol. 6 No. 2 (2020): JRT Volume 6 No 2 Des 2020
Publisher : 2477 - 6165

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55732/jrt.v6i2.234

Abstract

Phosphoric acid can be formed from bone waste, including cow bone which contains calcium phosphate. When reacted with sulfuric acid it becomes phosphoric acid. The purpose of this research was to determine the reaction constant of phosphoric acid from cow bones. The reaction constant can determine the good operating conditions in a reactor design. Starting with the cow bones that have been powdered with a size of 200 mesh, dissolved in the water until saturated. Then saturated solution 500 ml was taken and reacted with 4 N sulfuric acid 100 ml, stirring process was carried out at 200 rpm, with variable temperature were (70oC, 80oC, 90oC, 100oC, and 110oC) and time were (40, 50, 60, 70, and 80 minutes). Next, the sample was filtered, and the sediment was taken, and analysed of phosphoric acid filter and separated the sediment. Based on this research, an equation k = 1.1627 e -3742.4 / T was generated. The graph in picture 5 shows that the equation followed a pseudo first order reaction.
Kajian Ekstraksi Lada Hitam (Piper nigrum l.) Menggunakan Metode Ultrasound-Assisted Extraction : Extraction Study of Black Pepper (Piper nigrum l.) Using Ultrasound-Assisted Extraction Method Amanda, Nabila Ayu; Syahrani, Alza Nadilla; Erliyanti, Nove; Panjaitan, Renova; Pujiastuti, Caecilia; Soemargono, Soemargono
Jurnal Rekayasa Bahan Alam dan Energi Berkelanjutan Vol. 7 No. 2 (2023)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.rbaet.2023.007.02.02

Abstract

Piper nigrum l. atau lada hitam, merupakan tanaman asli Indonesia yang juga tumbuh di Malaysia, Sri Lanka, Vietnam dan negara Asia Tenggara lainnya. Lada hitam dapat diolah sebagai oleoresin dengan melakukan ekstraksi. Ultrasound-Assisted Extraction adalah metode untuk meningkatkan hasil dan efisiensi ekstraksi oleoresin. Tujuan dari penelitian ini yaitu untuk mengkaji pengaruh waktu dan suhu ekstraksi terhadap rendemen, densitas, dan indeks bias, mengkaji komponen kimia oleoresin lada hitam serta mengkaji hasil relatif terbaik sesuai SNI 01-0025-1987-B. Bubuk lada hitam diekstraksi dengan ultrasound menggunakan pelarut etanol Rasio bahan dan pelarut yang digunakan adalah 0,37 b/v. Kondisi operasi dilakukan pada waktu ekstraksi 20, 35, 50, 65, dan 80 menit serta suhu ekstraksi 30, 40, 50, 60, dan 70 ˚C dan frekuensi 40 kHz. Hasil dari penelitian menunjukkan pengaruh waktu ekstraksi yang semakin lama dan suhu ekstraksi yang semakin tinggi maka rendemen, densitas, dan indeks bias yang dihasilkan akan semakin besar. Hasil relatif terbaik diperoleh pada waktu ekstraski 80 menit  dan suhu 70˚C dengan warna coklat pekat, berbentuk pasta cair, beraroma khas lada, rendemen sebesar 22,57%, densitas sebesar 0,8350 gram/ml, kadar piperin sebesar 74,78%, kadar minyak atsiri sebesar 25,22%, dan indeks bias sebesar 1,4900.
Co-Authors Achmad Rizal Afandi, Fadila Ardiansyah Alwansyah, Yuki Amru Amanda, Nabila Ayu Angelia Tantyono Anggoro, Achmad Rahditya Viman Anggraeni, Verendria Putri Caesar Annisa Anwar, Miranda Anugerah Dany Priyanto, Anugerah Dany Arianti, Rahma Dea Rerindra Arief S, Purwanto Aththobarani, Muhammad Daffa' Azka, Salsabilla Betafachreza, Aditya Fadhilaskha Chakim, M. Ghufron Djarwatiningsih, Djarwatiningsih Egita Yulisningtyas Erfani, Rif’atul Firda Erlinda, Riska Melati Erliyanti, Nove Erliyanti, Nove Kartika Fadilah, Muhammad Fajrin, Alifah Nur Aini Fernanda, Moza Ayu Hafiza, Putri Nur Hamzah, Maditya Amirul Hidayah, Bimantara Ira Pareira Ketut Sumada Caecillia Pujiastuti Kindriari Nurma Wahyusi Kusuma, Prasdinata Meidaus Lisa Rizky Amalia Maharani, Hijria Putri Moenandar, Siswanto Monica, Clarissa Putri Muchamad, Raka Selaksa Charisma Muhammad Septianto Nana Dyah Siswati, Anwar Zain and Mohammad Ni Ketut Sari Nofitasari, Luluk Novianah, Delia Indah Panjaitan, Legipson Panjaitan, Renova Pertiwi, Beta Cahaya Pradana, Alfian Rizki Puput Srianah, Puput Srianah Puspitasari, Indah Maharani Putra, Andre Yusuf Trisna Putra, Andreansyah Brilliant Putra, Boni Mulia Putra, Sandy Buana Putri, Megawati Setiawan Rachmawati, Fadiatul Rizqullah, Rafitrah Rohmah, Aisyah Alifatul Zahidah Royyan, Irham Alva Soemargono Soemargono SRIE MULJANI Suprianti, Lilik Suprihatin Susilowati Susilowati Syahrani, Alza Nadilla triani, nova Trianna, Nurul Widji Wicaksono, Akhmad Permadi Widya P, Vika Wira, Guardiola Rosa Yustina Ngatila Yustina Ngatilah Zain, Tama Rahmandha