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All Journal International Journal of Renewable Energy Development BERKALA SAINSTEK Bulletin of Chemical Reaction Engineering & Catalysis UNEJ e-Proceeding JC-T (Journal Cis-Trans): Jurnal Kimia dan Terapannya ALCHEMY Jurnal Penelitian Kimia Warta Pengabdian Chemistry Indonesian Journal of Chemical Research CHEESA: Chemical Engineering Research Articles Dalton : Jurnal Pendidikan Kimia dan Ilmu Kimia Journal TEPAT: Teknologi Terapan untuk Pengabdian Masyarakat Jurnal Kartika Kimia Jurnal Teknologi Dedikasi: Jurnal Pengabdian kepada Masyarakat Jurnal Pijar MIPA Journal of Food Engineering Makara Journal of Science Journal of Biobased Chemicals (JOBC) Sewagati Jurnal Teknik Kimia dan Lingkungan Warta LPM International Journal of Renewable Energy Development Bulletin of Chemical Reaction Engineering & Catalysis Jurnal Penelitian Sains dan Teknologi Indonesia Jurnal Hasil Pengabdian Kepada Masyarakat Universitas Jember Indonesian Journal of Science and Education Dinamika Kerajinan dan Batik: Majalah Ilmiah
Meta Fitri Rizkiana
Department Of Chemical Engineering, Faculty Of Engineering, Universitas Jember, Jalan Kalimantan 37, Jember 68121, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Physics Public Health Social Sciences Other

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Pengaruh Intensitas Cahaya dan Nutrisi Terhadap Laju Pertumbuhan Ulva sp. Palupi, Bekti; Maharani, Regita Gustiayu Pramisti; Wardani, Salza Belila Kusuma; Rizkiana, Meta Fitri; Amini, Helda Wika; Fachri, Boy Arief; Rahmawati, Istiqomah; Muharja, Maktum; Indrayani, Lilin
Jurnal Teknologi Vol. 11 No. 2 (2024): Jurnal Teknologi
Publisher : Universitas Jayabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31479/jtek.v11i2.272

Abstract

Ulva sp. adalah genus makroalga hijau dengan diameter permukaan yang besar. Manfaat dari kapasitas fotosintesis yang tinggi pada Ulva sp. sebagai media penyerapan nutrisi seperti amonium, nitrat, dan fosfor dengan tingkat yang tinggi. Ulva sp. termasuk alga yang tumbuhnya berdasarkan musim, untuk itu diperlukan budidaya guna memenuhi kebutuhan. Penelitian ini bertujuan untuk mengetahui pengaruh intensitas cahaya dan jumlah nutrisi terhadap kadar klorofil total dan laju pertumbuhan spesifik Ulva sp. Variabel yang digunakan adalah intensitas cahaya sebesar 1000 sampai dengan 3000 Lux serta jumlah nutrisi yang digunakan yaitu 0,6 mg/L hingga 1,8 mg/L. Penelitian ini dilakukan dengan lama penyinaran selama 12 jam. Prosedur yang dilakukan berupa pemeliharaan Ulva sp. dengan wadah terkontrol dilanjutkan dengan pengujian kadar nitrogen total, pengujian kadar fosfat, pengujian kadar klorofil, dan laju pertumbuhan spesifik. Didapatkan nilai derajat keasaman atau pH pada wadah penelitian berkisar 6,5 – 8,5, suhu berada di antara 24 – 26°C, dan salinitas 35 – 37 ppt. Hasil analisis menghasilkan data yang baik jika ditinjau dari nilai p-value yang memiliki nilai kurang dari 0,05.   Keywords: aklimatisasi, Ulva sp., nutrisi, klorofil, laju pertumbuhan
Natural Sources Screening for Antimicrobial Agents of Herbs, Spices, and Extract: A Semi-Qualitative Study Felix Arie Setiawan; Meta Fitri Rizkiana; Bekti Palupi; Istiqomah Rahmawati
Journal of Biobased Chemicals Vol. 1 No. 1 (2020): Journal of Biobased Chemicals
Publisher : Program Studi Teknik Kimia Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (615.23 KB) | DOI: 10.19184/jobc.v1i1.107

Abstract

Indonesia has been recognized for its rich natural ingredients such as spices, herbs, and extracts for decades. Furthermore, these components also have been used as an herbal medicine for a long time ago. Meanwhile, the apparent capability comparison of several components on antimicrobial activity has not been updated yet. This study was conducting the comparison of antimicrobial activity for several materials such as noni (Morinda citrifolia), garlic (Allium sativum), celery (Apium graveolens), galangal (Alpinia galangal), ginger (Zingiber officinale), yellow turmeric (Curcuma longa), lime (Citrus aurantifolia), papaya (Carica papaya) leaf, betel (Piper betle) leaf, and cutcherry (Kaempferia galangal) using agar dilution method. Two types of bacteria are used for the test, namely gram-negative bacteria and gram-positive bacteria, with a total of seven bacteria. The media used were TSA (Trypticase Soy Agar) media for gram-negative bacteria and MRSA (Methicillin-Resistant Staphylococcus Aureus) media for gram-positive bacteria. This study had been conducted by using a fast screening method, which referred to a semi-qualitative method. Several components, such as noni, lime, and betel leaf, showed a significant result of antimicrobial activity. Otherwise, other compounds, surprisingly, could not suppress bacterial growth.
Optimization of Extraction of Bioactive Compound from Pegagan Leaves Using Ethanol Solvent With Microwave-Assisted Extraction Method (MAE) Rohmah, Fira Ulvatur; Rahmawati, Atiqa; Rizkiana, Meta Fitri; Susanti, Ari
Journal of Biobased Chemicals Vol. 2 No. 1 (2022): Journal of Biobased Chemicals
Publisher : Program Studi Teknik Kimia Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (514.436 KB) | DOI: 10.19184/jobc.v2i1.119

Abstract

Treatment using natural ingredients in Indonesia is the main choice that is growing in society. This is because treatment with natural ingredients has relatively milder side effects compared to synthetic treatment. Therefore, further research is needed on natural ingredients that can be used as natural medicines, one of which is pegagan (Centella asiatica (L.)). Several studies have found bioactive compounds in pegagan that can be used as medicine by various methods. The author wants to know the optimal conditions for extracting pegagan bioactive compounds using the microwave-assisted extraction (MAE) method. This study used pegagan leaf size 40 mesh that had been dried. pegagan leaves were extracted using ethanol as a solvent with microwave power, solvent concentration, and extraction time as variables. Variable power 150 watts, 300 watts, and 450 watts. Variable solvent concentration 25%, 50%, and 75%. Variable extraction time for 5, 10, and 15 minutes. Analysis of the results of the study was carried out using total phenol analysis using the Folin-Ciocalten method. The research data obtained optimum operating conditions at 75% solvent concentration, 450-watt microwave power, and extraction time of 10 minutes with a total phenol content of 1251.410225 mg AGE/g sample.
Effect of Time, pH, and Yeast Concentration on Bioethanol Levels in the Ulva sp. Fermentation Process Aina Christalia Rinastiti; Dianita Ivana Permata; Bekti Palupi; Zuhriah Mumtazah; Meta Fitri Rizkiana; Atiqa Rahmawati
Journal of Biobased Chemicals Vol. 2 No. 2 (2022): Journal of Biobased Chemicals
Publisher : Program Studi Teknik Kimia Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jobc.v2i2.269

Abstract

Bioethanol is a form of renewable energy that is used to reduce dependence on the use of fossil fuels which cause various negative impacts on the environment. Ulva sp. contains high carbohydrates so it has the potential as a raw material for bioethanol production. This study aims to determine the optimum conditions of the fermentation process with the variables used time, pH, and yeast concentration. This study used the results of hydrolysis of Ulva sp. with optimum operating conditions of 0.1 N HCl concentration, 80 mesh particle size, and 450 watt microwave power. Measurement of bioethanol levels was carried out using an alcoholmeter. The results showed that the optimal conditions for fermentation were 7 days of fermentation, pH 5.5, and yeast concentration of 1.5% which resulted in a bioethanol content of 7.55%.
Preparation of a hollow fiber membrane made of antifouling PVDF/Zeolit using the dip-coating technique Mumtazah, Zuhriah; Adinda Yufriza; Husna Wardati; Ditta Kharisma Yolanda Putri; Meta Fitri Rizkiana; Reva Edra Nugraha
Journal of Biobased Chemicals Vol. 3 No. 1 (2023): Journal of Biobased Chemicals
Publisher : Program Studi Teknik Kimia Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jobc.v3i1.279

Abstract

The practical technique for membrane modification is dip coating. This study coats a PVDF hollow fiber membrane-based composite with a coating of zeolite. The composite is made of a polyvinylidene fluoride (PVDF) membrane. During water filtering, the separation capabilities and propensities of composite membranes for organic impurities were examined. Fourier-transform infrared spectroscopy analysis of the findings demonstrated that the Zeolite coating was successfully deposited on the PVDF membrane. The flux recovery ratio increases from 69% to 80% while the relative flux drop decreases from 63% to 50%. A composite PVDF membrane dip-coating of Zeolite with a GA and H2SO4 ratio of 1:2 is needed to remove about 75% of humic compounds from effluent. The results of this study show that the addition of Zeolite with a GA and H2SO4 layer can greatly improve the hydrophilicity, selectivity, and anti-organic fouling of the PVDF hollow fiber membrane.
Adsorption of Methylene Blue by Magnetic Activated Carbon/Chitosan Composites Prepared from Spent Coffee Grounds : Kinetic, Equilibrium and Thermodynamic Study Santosa, Iliya Kartika; Meta Fitri Rizkiana
Journal of Biobased Chemicals Vol. 3 No. 1 (2023): Journal of Biobased Chemicals
Publisher : Program Studi Teknik Kimia Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jobc.v3i1.282

Abstract

Spent coffee grounds were used as the main ingredient for the composing of magnetic activated carbon/chitosan (MACC) composites and synthesized using the coprecipitation method. The SEM-EDX characterization was used to understand elemental identification and morphology of the adsorbent before the MACC was applied for the removal of methylene blue (MB) from aqueous solution. Magnetic activated carbon/chitosan was fabricated with the subsequent circumstances: the molar ratio of ferrous/ferric ions was 0.02 mol : 0.01 mol, coprecipitation temperature at 60°C for 5 h. Adsorption parameters for MB were investigated. The adsorption by MACC was evaluated thermodynamically for the discharge of MB from an aqueous solution as adsorption reckon on temperature. Calculations of thermodynamic parameters were conducted. Batch adsorption experiments were operated at 308 K; 318 K and MB concentration of 5-50 mg L-1 to investigate the adsorption behavior. According to the results, MACC has a porous structure. The adsorption process is more reactive upon raising the temperature, a process commonly known as endothermic. Based on R2values, the adsorption of MB onto MACC was found best fitted to Freundlich model. The maximum adsorption capacity of the MACC was counted as 24.5 mg/g. The adsorption process is spontaneous, which was concluded from the calculation of thermodynamic parameters.
A Evaluation of the Effect of Microalgae Chlorella vulgaris on the Performance of Membrane Bioreactor for Industrial Wastewater Treatment Faqih, Hana; Raygita May Hastuti; Zuhriah Mumtazah; Helda Wika Amini; Meta Fitri Rizkiana
Journal of Biobased Chemicals Vol. 3 No. 2 (2023): Journal of Biobased Chemicals
Publisher : Program Studi Teknik Kimia Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jobc.v3i2.428

Abstract

Water pollution, especially from industry, is a problem that continues to emerge and even get worse. Rising sludge events often occur in industrial wastewater treatment processes. Process engineering with the addition of microalgae is proposed in this study to overcome the occurrence of rising sludge and improve wastewater quality based on dissolved oxygen levels. The control variables used were MLSS 1000 mg/L, microalgae Chlorella vulgaris 106 L, and urea and TSP 1,75 kg each. The dependent variable is rising sludge and DO levels while the independent variable is time. This research went through several stages, namely seeding microalgae, seeding microalgae into activated sludge in MBBR, experimenting with combining microalgae and activated sludge in MBBR, and installing ultrafiltration membranes with a WWTP capacity of 150 m3/day. The addition of microalgae in the MBBR process has a positive impact in improving the quality of industrial wastewater, which is characterized by the absence of rising sludge and DO levels exceeding the minimum threshold.
Ekstraksi Minyak Atsiri pada Daun Jeruk Manis (Citrus Aurantium) dengan Menggunakan Metode Microwave Hydrodistilation (MHD) Putri Agustin, Mawardhi Nabilla; Andreyan Poerwo Negoro; Ditta Kharisma Yolanda Putri; Meta Fitri Rizkiana; Istiqomah Rahmawati
Journal of Biobased Chemicals Vol. 3 No. 2 (2023): Journal of Biobased Chemicals
Publisher : Program Studi Teknik Kimia Universitas Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19184/jobc.v3i2.435

Abstract

This study aims to utilize sweet lime leaves which are only waste that has no value, where sweet lime leaves are one of the ingredients that contain essential oils. Apart from the skin, it turns out that this sweet lime leaf can also be extracted using the Microwave Hydrodistillation (MHD) method. This study uses three variables namely; the F/S ratio used was 0.375 g/mL; 0.5g/mL; 0.65 g/mL, power 150 watts, 300 watts, and 450 watts, and time 30, 60, and 90 minutes. The extraction method is carried out using fresh ingredients with a solvent volume of 200 ml. The test carried out is the GC-MS test. The results of the test method and the purpose of this study were to determine the limonene content in the extraction of sweet lime leaves using the MHD method with variations in ratio, power, and time. The optimum yield of essential oils is at a power of 300 W, 90 minutes, and a ratio of 0.625 with a yield of 0.373%. The biggest components produced in the MHD method of extracting citrus leaves were Germacrene D 29.51%, Alpha-Copaene 18.47%, CIS-CAROPHYLNE 15.42%, 9-Eicosene (E) 8.58% and Limonene 5.51%.
Effect of Time Variation on Chlorophyll Concentration in Cocoa Leaf Extraction using the UAE (Ultrasonic Assisted Extraction) Method Rahmawati, Istiqomah; Shabrina, Nadhilah; Fachri, Boy Arief; Amini, Helda Wika; Palupi, Bekti; Rizkiana, Meta Fitri; Nurtsulutsiyah, Nurtsulutsiyah; Pradipta, Shima Nuril; Afwal, Diza Raudhatul; Reza, Muhammad
Jurnal Kartika Kimia Vol 5 No 1 (2022): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v5i1.97

Abstract

Until now, Cocoa (Theobroma cacao L.) plantation is a sector that has been continuously cultivated. Cocoa leaves contain chlorophyll, which is an important pigment in photosynthesis as sunlight absorber. The aim of this study is to determine the effect of extraction time to the concentration of chlorophyll in cocoa leaves. The extraction time was varied from 5 to 25 min with constant variables, namely power and ratio of raw materials. In this study, Ultrasonic Assisted Extraction (UAE) method was used due to its effectiveness. The concentration of obtained chlorophyll was determined by using UV-Vis spectrophotometry. The optimum extraction time was 15 min producing concentration of chlorophyll a of 9.39 mg/L, chlorophyll b of 4.78 mg/L, and total chlorophyll of 14.16 mg/L.
Optimization of Microwave Ultrasound Extraction of Biopolymer from using Response Surface Methodology Rahmawati, Istiqomah; Annisa, Yasmin; Farwah, Zilma Aliyah; Adrian, Febri; Anggraini, Ranita Anggi; Fachri, Boy Arief; Reza, Muhammad; Rizkiana, Meta Fitri; Palupi, Bekti; Amini, Helda Wika
Jurnal Kartika Kimia Vol 6 No 2 (2023): Jurnal Kartika Kimia
Publisher : Department of Chemistry, Faculty of Sciences and Informatics, University of Jenderal Achmad Yani

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26874/jkk.v6i2.174

Abstract

This study aims to determine the effect of combining the two extraction methods Microwave Assisted Extraction (MAE) and Ultrasound-Assisted Extraction (UAE) on the yield and content of ulvan polysaccharides from Ulva lactuca with the best operation condition. Algae biomass U. lactuca is abundant, according to its content, U. lactuca contains polysaccharides which can be used as biodegradable plastic materials. The extraction was carried out using Microwave Ultrasound Extraction by varying the microwave power from 100 to 800 watts, the microwave time variations from 10 to 50 minutes, the ultrasonic wave temperature range from 40-80 oC, and the ultrasonic wave time variations from 20 to 50 minutes. Optimization was performed using the response surface methodology center composite design methodology for a total of 28 runs. Several tests were carried out to determine the character of the ulvan polysaccharide, including water content, FT-IR spectroscopy, High-Performance Liquid Chromatography, and its antioxidant activity. The effect of combining Microwave Assisted Extraction (MAE) and Ultrasound-Assisted Extraction (UAE) provides an optimal extraction condition with higher yields and good quality ulvan.
Co-Authors Abdul Malik Karim Amrullah Abdur Rohman Achri Isnan Khamil Adelina, Saltsabita Nourin Adinda Yufriza Adrian, Febri Adriansyah, Muhamad Afwal, Diza Raudhatul Aina Christalia Rinastiti Amal Bahariawan Amalia Ramadhan Andreyan Poerwo Negoro Anggraeni, Sella Violina Anggraini, Ranita Anggi Annisa, Yasmin Ari Susanti Ari Susanti Ari Susanti Ariel Seanhan Haezer Atiqa Rahmawati Atiqa Rahmawati Aziz, Mohamad Naufal Nizaar Azizi, Daffa Hafiziaulhaq Badril Azhar Bekti Palupi Bimo Bayu Aji Boy Arief Fachri Boy Fachri Devara, Arighy Zahirah Faiqy Dianita Ivana Permata Dini Rahmawaty Ditta Kharisma Yolanda Putri Elisah, Nor Fachri, Boy Fakhri Arkaan Humaidi Fandora, Ardan Jauza Faqih, Hana Farwah, Zilma Aliyah Felix Arie Setiawan Firmansyah, Alex Firsta Retnaningtyas Udroto Gregah Pangayoman Hartanto P Habib Ihza Mahendra Habibatul Inayah Harti Arini Helda Wika Amini Helda Wika Amini Herdianto, Dimas Nur Humaidi, Fakhri Arkaan Husna Wardati Indrayani, Lilin Intan Hardiatama Intan Permatasari Istiqomah Rahmawati Istiqomah Rahmawati Iswahyono Iswahyono Joseph Dwi Kurniawan Manno Kenji Sakai Kenji Sanomoto Lailatul Krisna Abdullah Lestari, Afrila Tutut Dwijati Maharani, Regita Gustiayu Pramisti Maktum Muharja Megasari, Tri Elok Setya Mizanurafi’ Ghifarhadi Prasiefa Mochamad Ghaza Al Ghifari Mohammad Nor Muhammad Ilham Muhammad Reza Muhammad Reza Muhammad Rizky Kurniawan Muharja, Maktum Naily Fatimatuz Zaroh Nanda Ayudiyah Andriani Nida Ayu Salsabila Nikita Meidi Nugraha, Reva Edra Nugroho, Yeremia Prasetya Nurani, Yukti Nurjannah, Lailia Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah Nurtsulutsiyah, Nurtsulutsiyah Nurul Hidayati Pradipta, Shima Nuril Putri Agustin, Mawardhi Nabilla Rachman, Darryl Akeyla Rafif, M. Attar Rahman, Agus Rahmawati, Atiqa Ramadana, Ifan Raygita May Hastuti Regita Gustiayu Pramisti Maharani Rekfa Wika Amini Reswara Musyafa Retno Utami Agung Wiyono Richa Febyola Surya Putri Rizalluddin, Muhammad Rizki Fitria Darmayanti Rizki Fitria Darmayanti Rizki Fitria Darmayanti Rohmah, Fira Ulvatur Sakai, Kenji Sanomoto, Kenji Santosa, Iliya Kartika Saputri, Ocha Sa’roni, Achmad Septianti, Kiki Shabrina, Nadhilah Shofiah , Laila Nur Sholeha, Irdatus Siska Nuri Fadilah Siti Djamila Sonya Hakim Raharjo Susilowati Susilowati Tarigan, Eigiya Nina Tashiro, Yukihiro Ulfiani, Khoirun Nisya' Viqhi Aswie Wardani, Salza Belila Kusuma Wardhani, Maharani Tri Wibowo, Jihan Nafila Wiwik Pratiwi Yakub Hendrikson Manurung Yohanes Yohanes Yukihiro Tashiro Yukti Nurani Zuhriah Mumtazah