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All Journal Jurnal Kimia Riset ALCHEMY Jurnal Penelitian Kimia SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Dedikasi: Jurnal Pengabdian kepada Masyarakat Aceh International Journal of Science and Technology Journal of Biobased Chemicals (JOBC) Sewagati Jurnal Teknik Kimia dan Lingkungan InSTEM Dinamika Kerajinan dan Batik: Majalah Ilmiah
Zuhriah Mumtazah
Department Of Chemical Engineering, Faculty Of Engineering, Universitas Jember, Jl. Kalimantan 37 Jember 68121, Indonesia
Agriculture, Biological Sciences & Forestry Arts Humanities Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Nursing Physics Public Health Social Sciences Other

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Extraction of Flavonoid Compounds from Red Betel (Piper crocatum) Using Ultrasound-Assisted Extraction (UAE) Method Riavinola Viyoni Pramudiska; Audi Nur Amartya; Ditta Kharisma Yolanda Putri; Zuhriah Mumtazah; Bekti Palupi
JOBC Vol. 3 No. 2 (2023): Journal of Biobased Chemicals
Publisher : University of Jember

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Piper crolatum or red betel is one of the medicinal plants known for its beneficial antioxidant content in maintaining overall health. One of the types of antioxidants found in red betel leaf is flavonoids. In this study, red betel leaf was extracted using the Ultrasound-Assisted Extraction (UAE) method to analyze the flavonoid content and antioxidant activity in the red betel leaf. A 90% ethanol solvent was used, and the extraction variables included the ratio of material to solvent, particle size, and extraction time, which were determined using Design Expert 13 software. The flavonoid test was performed using a UV-Vis spectrophotometer at 431 nm. The analysis of antioxidant activity was conducted using DPPH (2,2-Diphenyl-1-picrylhydrazyl). The highest flavonoid content obtained was 263.676 mgQE/g under the optimum operating conditions with a particle size of 100 mesh, a material-to-solvent ratio of 0.06, and an extraction time of 25 minutes.
Extraction of Anthocyanins from Dragon Fruit Peel Using Solvent Extraction Method Mohammad Fathur Rohman Y.; Shariska Putri Devina; Boy Arief Fachri; Istiqomah Rahmawati; Zuhriah Mumtazah
JOBC Vol. 4 No. 1 (2024): Journal of Biobased Chemicals
Publisher : University of Jember

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Dragon fruit skin contains 26.4587 mg/L anthocyanins. Anthocyanins have benefits such as natural coloring agents in the food sector and are used as an alternative to synthetic dyes which are of course also safer for health. The purpose of this study was to determine the effect of extraction variables (time, solvent concentration, and particle size) on the anthocyanin content of dragon fruit skin from the extraction results with the Solvent Extraction method. The definition of Solvent Extraction is the separation of materials from a solid or liquid with the help of a solvent. The extraction process starts from the agglomeration of the extract with the solvent then contact occurs between the material and the solvent so that on the flat plane of the interface of the extraction material and the solvent there is mass deposition by diffusion. The extraction process starts with 25 grams of dragon fruit peel powder with a variety of particle sizes (30, 60, and 80 mesh) then put into an Erlenmeyer tube. Then, the citric acid solution with various concentrations (0.1 M; 0.2 M; and 0.3 M) was added as much as 250 ml. After that, the Erlenmeyer was placed on a stirrer to stir for (90, 120, and 150 minutes). After that, the extraction results were filtered using filter paper to produce a filtrate. Then the filtrate was precipitated to obtain anthocyanin extract. After that, it was analyzed using the spectrophotometric method to calculate anthocyanin content. In this study, the best results were obtained at 11.439 mg/L in conditions without repetition. The optimum conditions of extraction were obtained at a particle size of 60 mesh, a time of 150 minutes, and a solvent concentration of 0.5 M citric acid.
Kinetics of Extraction of Arabica Coffee Bean (Coffea arabica) Lailatul Fatma; Nabilah Lu’aili Fauziah; Boy Arief Fachri; Zuhriah Mumtazah; Helda Wika Amini
JOBC Vol. 4 No. 2 (2024): Journal of Biobased Chemicals
Publisher : University of Jember

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Coffee beans are the seeds of the coffee plant and a source of coffee beverages. Arabica coffee beans contain oil, which has many benefits. Extracting oil (solute) from coffee can be done through solvent extraction (leaching). The coffee bean oil extraction process uses n-hexane as a solvent because it can dissolve compounds with the same properties. This research aimed to study the extraction of essential oil from Arabica coffee beans and determine the kinetic model of extraction of essential oil from Arabica coffee beans by leaching. The process of separating coffee oil and solvent using thermogravimetric analysis with a temperature of 80 ℃ until the sample mass is constant. The variables used were temperature and time. The extraction time is 2 hours, with retrieval time every 10 minutes. The temperature used is 30, 40, and 50 ℃ with a ratio of material and solvent 1:10. The results showed that the kinetics of arabica coffee extraction followed the second-order extraction kinetics model. The second-order kinetic parameter values of arabica coffee essential oil extraction, namely extraction capacity (Cs) at 30, 40, and 50 ℃ were 5.45836, 5.46, and 5.46001 g L-1, respectively, the rate of the initial extraction (h) was 0.00762718, 0,00756716, and 0,0104452 gL-1minute-1, the extraction rate constant (k) was 0.000256, 0.000254, and 0.00035 g-1L-1minute-1, and determination values (R square) of 0.9965, 0.9967 and 0.9983.
Co-Authors Abdul Aziz Achri Isnan Khamil Adelia Nanda Pramudya Adelina, Saltsabita Nourin Adiana, Bernanda Delta Adinda Yufriza Aina Christalia Rinastiti Al Fajri, Maktum Muharja Amartya, Audi Nur Anak Agung Nabilla Azzahrah Anandya Zulham Valensyah Andini, Angger Ansori Ansori Ansori AR Yelvia Sunarti Ardika Nurmawati, Ardika Arie Setiawan, Felix Atiqa Rahmawati Audi Nur Amartya Azizi, Hosshofil Azhar Bekti Palupi Boy Arief Fachri Diana Permata Nur Mifdatun Jannah Dianavita Fatimah Dianita Ivana Permata Ditta Kharisma Yolanda Putri Dwi Imam Sahroni Waji Dwi Intan Noer Aini DWI LESTARI, FITRIA Erwan Adi Saputro Fachri, Boy Faqih, Hana Fatimah, Dianavita Febri Adrian Firmansyah, Muhammad Alfian Gavinda Tsubutul Akmal Hanan Helda Wika Amini Helda Wika Amini Hellna Tehubijuluw Hilda Huril Ainia Husna Wardati Ilyas Arya Pratama Irawan, Dwi Agustin Istiqomah Rahmawati Istiqomah Rahmawati Kharisma Yolanda Putri, Ditta Lailatul Fatma Lailatul Krisna Abdullah M. Zikrillah Maktum Muharja Megasari, Tri Elok Setya Merymistika Yufrani Afred Meta Fitri Rizkiana Mohammad Fathur Rohman Y. Muhammad Dhaffa Mahendra Muhammad Nabil Suryagama Muhammad Rizky Kurniawan Muhammad Zufar Syah Muharja, Maktum Nabilah Lu’aili Fauziah Nandini, Atika Naufal Nizaar Aziz, Mohamad Nayyara Aida Buana Nida Ayu Salsabila Nirina Indi Naraismanti Nur Laila Ida Fitria Ocita Galuh Permatasari Pramasta, Ady Pramudiska, Riavinola Viyoni Pratamai Shelli Putri Ayu Salsabila Rahmatullah, Moh. Fajar Ratri Sekaringgalih Raygita May Hastuti Rekfa Wika Amini Reva Edra Nugraha Riavinola Viyoni Pramudiska Rizki Fitria Darmayanti Rizkiana, Meta Saputra, Ilham Sari, Difka Augustina Diana Shariska Putri Devina Sholeha, Novia Amalia Silvana Dwi Nurherdiana Siregar, Monika Jelita Soleh, Achmad Rodi Sunarti, A.R Yelvia Syaifullah, Rangga Yudha Syuaibatul Islamiyah Tri Elok Setya Megasari Udroto, Firsta Retnaningtyas Widjatma, Ridho Rahadina Yolanda, Ditta Kharisma Yukti Nurani Zahwa Auliya Zahiyah