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All Journal HAYATI Journal of Biosciences Jurnal Teknologi Industri Pertanian VALENSI BERKALA FISIKA JURNAL KIMIA SAINS DAN APLIKASI Jurnal Penelitian Hasil Hutan The Journal of Pure and Applied Chemistry Research Journal of Engineering and Technological Sciences Jurnal Sains Dan Teknologi Lingkungan Majalah Obat Tradisional Jurnal Sains & Teknologi Lingkungan Jurnal Kimia Riset Jurnal Hasil Penelitian Industri INDONESIAN JOURNAL OF ESSENTIAL OIL Al-Kimia ALCHEMY Jurnal Penelitian Kimia Indonesian Journal of Chemistry Biosaintifika: Journal of Biology & Biology Education Jurnal Purifikasi Chemistry Indonesian Journal of Chemical Research Abdimas Umtas : Jurnal Pengabdian kepada Masyarakat ASEAN Journal on Science and Technology for Development Jurnal Jamu Indonesia Hisbah: Jurnal Bimbingan Konseling dan Dakwah Islam Jurnal Ilmiah Kebidanan Indonesia (Indonesian Midwifery Scientific Journal) Jurnal Penelitian Hasil Hutan Indonesian Journal of Chemical Studies (Indones. J. Chem. Stud.) Milang Journal of Mathematics and Its Applications LIMNOTEK Indonesian Journal of Jamu Jurnal Penelitian Hasil Hutan MILANG Journal of Mathematics and Its Applications Analit: Analytical And Environmental Chemistry
Eti Rohaeti
Department Of Chemistry, Faculty Of Mathematics And Natural Science, IPB University, Bogor|IPB University|Indonesia;Tropical Biopharmaca Research Center, IPB University,Bogor|IPB University|Indonesia
Religion Agriculture, Biological Sciences & Forestry Arts Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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Fingerprints, Antioxidant Activity, and Anti-Tyrosinase of Fungus Comb Extract Dewi, Trisni Untari; Diposani, Diva Putri; Rohaeti, Eti; Nandika, Dodi; Karlinasari, Lina; Arinana, Arinana; Santoso, Djoko; Witasari, Lucia Dhiantika; Rachmayanti, Yanti; Batubara, Irmanida
Jurnal Jamu Indonesia Vol. 8 No. 3 (2023): Jurnal Jamu Indonesia
Publisher : Tropical Biopharmaca Research Center, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jji.v8i3.346

Abstract

Fungus comb is a structure made by termite colony Macrotermitinae with lots of potential because it contains secondary metabolites such as steroids, terpenoids, and saponins and compounds containing antioxidant and anti-tyrosinase properties. This study aimed to determine fungus comb extracts' fingerprint pattern, antioxidant capacity, and anti-tyrosinase activity. Thin layer chromatography (TLC) was used to determine fingerprint patterns. The resulting TLC pattern was processed with ImageJ and converted into a densitogram. The fungus comb was extracted with n-hexane and ethyl acetate. TLC results showed that fungus comb extracts contain steroids and terpenoids and have antioxidant properties. The antioxidant capacity assay was carried out with 2,2-diphenyl-1-picrylhydrazyl reagent. N-hexane extract had an antioxidant capacity value of 9.07 mg ascorbic acid equivalent (AAE)/g extract, while ethyl acetate extract had 6.04 mg AAE/g extract. Anti-tyrosinase activity assay was carried out with L-tyrosine and L-3,4-dihydroxyphenylalanine (L-DOPA) as substrates. N-hexane extract had a better anti-tyrosinase activity with IC50 of 1804 µg/mL for L-tyrosine and 6784 µg/mL for L-DOPA.
LC-HRMS-Based Metabolomics Approach Reveals Antioxidant Compounds from Centella asiatica Leaves Extracts Silvia, Riva; Wahyuni, Wulan Tri; Rohaeti, Eti; Aisyah, Siti; Septaningsih, Dewi Anggraini; Karomah, Alfi Hudatul; Rafi, Mohamad
Indonesian Journal of Chemistry Vol 24, No 6 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.90782

Abstract

Centella asiatica is a medicinal plant widely used as a traditional medicine due to several biological activities, such as antioxidants in Indonesia. This study aims to identify the active antioxidant compounds of C. asiatica leaves extract using a liquid chromatography-mass spectrometry/mass spectrometry (LC-MS/MS)-based metabolomics approach. Extracts were prepared using different concentrations of ethanol p.a., i.e. 70% ethanol, 50% ethanol, 30% ethanol, and water. Antioxidant activity was tested using the 2,2-diphenyl-1-picrylhydrazyl method. The results showed the highest antioxidant activity was C. asiatica extracted by 70% ethanol with IC50 of 72.48 ± 2.42 µg/mL. The positive control was ascorbic acid, having an IC50 value of 3.38 ± 0.04 µg/mL. Ascorbic acid and 70% ethanol extract have strong antioxidant activity. Metabolite profiling using LC-MS/MS could identify 35 metabolites consisting of flavonoids, fatty acids, phenolics, terpenes, and several other groups of compounds. Orthogonal partial least squares-discriminant analysis classified the metabolites into active (ethanol 70% and ethanol 50%) and inactive (ethanol p.a., ethanol 30%, and water) antioxidants. Five metabolites have potential as antioxidants, namely 4,5-dicaffeoylquinic acid (11), kaempferol (13), and three unknown compounds.
Development of a Low-Cost Reflectance Visible Spectrophotometer with Chemometrics for Curcuma xanthorrhiza Roxb. Quality Control Heryanto, Rudi; Iswantini, Dyah; Rohaeti, Eti; Rafi, Mohamad; Rahma, Novia; Hafshah, Nurul; Mardiana, Eni
Jurnal Kimia Valensi Jurnal Kimia VALENSI, Volume 10, No. 2, November 2024
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jkv.v10i2.40351

Abstract

A simple, portable visible reflectance spectrophotometer was developed for classifying the quality of Curcuma xanthorrhiza Roxb. The device was assembled using consumer electronic components: an LED as the light source, a DVD optical layer as the diffraction grating, and a webcam as the detector, with web-based software (Spectral Workbench) as the signal processor. The spectrophotometer's performance was evaluated using standard Sudan III samples and powdered C. xanthorrhiza samples from two quality classes (A and B). Spectral data were analysed using principal component analysis (PCA) and partial least squares (PLS) regression.  PCA successfully grouped Sudan III samples by concentration and classified C. xanthorrhiza by curcuminoid content. A PLS regression model was developed for quantifying Sudan III, yielding R² values of 0.9909 for both calibration and cross-validation, with RMSEs of 0.3821% and 0.4152%, respectively. The results closely matched those from a commercial spectrophotometer. A PLS-discriminant analysis (PLS-DA) classification model for C. xanthorrhiza was also developed, achieving sensitivity and specificity values of 1. Additionally, semi-quantitative parameters such as decision limit (26.15% B), detection capability (41.06% B), and unreliability range (26.15–41.06% B) were calculated. The classification model showed strong sensitivity, specificity, and detection capabilities within acceptable limits. These findings suggest that this low-cost reflectance spectrophotometer, combined with chemometric methods, holds promise as a practical tool for the quality control of raw herbal materials.
PERAN PENYULUH AGAMA DALAM MELAKSANAKAN LAYANAN BIMBINGAN KONSELING ISLAM TERHADAP CALON JEMAAH HAJI KOTA BANDUNG rohaeti, eti; Lilis Satriah; Dudy Imanuddin Effendi
Hisbah: Jurnal Bimbingan Konseling dan Dakwah Islam Vol. 21 No. 2 (2024): Desember
Publisher : UIN Sunan Kalijaga Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/hisbah.2024.212.10

Abstract

This research will examine problems in organizing the 2023 Hajj, such as health anxiety, lack of companions, as well as other psychological problems that have the potential to affect Hajj pilgrims. This research hopes to understand the efforts made by Islamic religious instructors with their duties and functions as educational, task and effort. consultative function, duties and functions as an advocate function and consultative efforts and functions. This research uses a descriptive qualitative approach regarding data collection techniques related to observation, interviews, literature studies and documentation. Data processing is related to data reduction, presenting data, analyzing and drawing conclusions. The results of your research show that there are significant efforts made by religious instructors in carrying out their various functions for prospective Hajj pilgrims. Details of the research results include: 1) Informative Function: Religious instructors play a role in providing clear and complete information regarding various aspects related to the Hajj pilgrimage, including departure procedures, travel, accommodation in the holy land, as well as the importance of vaccination and maintaining health during the pilgrimage. 2) Educational Function: Religious instructors provide education to prospective Hajj pilgrims through practice, training and instilling the spiritual values ​​of the Hajj pilgrimage. They also provide guidebooks, video tutorials and other educational materials to help the congregation understand. 3). Consultative Function: Religious instructors provide consultation services to help prospective pilgrims resolve various problems they face, both before and during worship. 4). Advocative: Accompanying elderly pilgrims and ensuring their rights are protected. Keywords: role of religious instructors, Islamic counseling guidance, prospective Hajj pilgrims.
Assistance Of Understanding Financial Technology (Fintech) In Easy Financial Access to Msme PWM DKI Jakarta Al Azizah, Ummu Salma; Rohaeti, Eti
ABDIMAS: Jurnal Pengabdian Masyarakat Vol. 5 No. 1 (2022): ABDIMAS UMTAS: Jurnal Pengabdian Kepada Masyarakat
Publisher : LPPM Universitas Muhammadiyah Tasikmalaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35568/q8y7kq43

Abstract

This seminar and training is intended to provide an understanding of the benefits of financial technology in helping people to access finance globally. By providing an understanding of the benefits and functions of existing financial technology, individuals or business actors can manage well and completely planned. It will be easy to plan cash flow that occurs in business units and for future purposes. With the seminar approach given directly to the community, it is expected that there will be discussions and direct questions and questions about the impact of financial technology in human life in general, and financial goals in particular. As a result of the provision of seminars and also training on financial technology, people feel more ability to access financial technology and can implement their financial planning by using financial technology.
Identification of Strobilanthes crispa from Its Related Plant Using Thin-layer Chromatography Fingerprint Analysis Hasanah, Uswatun; Irene, Angelina; Mulyati, Ade Heri; Batubara, Irmanida; Rafi, Mohamad; Rohaeti, Eti
Majalah Obat Tradisional Vol 30, No 2 (2025)
Publisher : Faculty of Pharmacy, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/mot.95008

Abstract

Strobilanthes crispa known as keji beling in Indonesia, belong to the Acanthaceae family. Thin layer chromatography (TLC) fingerprint pattern analysis is an excellent technique for evaluating and controlling the quality of raw materials containing Strobilanthes crispa. TLC fingerprints can be used to analyze the fingerprint profiles of medicinal plants for identification, authentication, and discrimination from related plants. This study aimed to develop a TLC fingerprint analysis method to identify S. crispa for quality control. Eleven bands were effectively separated using a silica gel 60 F254 TLC plate with a mobile phase of dichloromethane, ethyl acetate, and chloroform at 16:3.2:0.8. The derivatization reagent used to detect the separated bands was 10% sulfuric acid at a wavelength of 366 nm. Validation of the TLC fingerprint analysis, which evaluated the robustness, stability, specificity, and precision, met these requirements. S. crispa can be distinguished by its TLC fingerprint from sirih hutan (Piper aduncum), a related plant with similar leaf morphology. This approach could be used to identify and authenticate of S. crispa from P. aduncum.
PENGGUNAAN METODE HOMOTOPI PADE’ UNTUK MENYELESAIKAN MASALAH LOTKA-VOLTERRA ROHAETI, E.; JAHARUDDIN, J.; KUSNANTO, A.
MILANG Journal of Mathematics and Its Applications Vol. 11 No. 1 (2012): Journal of Mathematics and Its Applications
Publisher : School of Data Science, Mathematics and Informatics, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jmap.11.1.31-40

Abstract

Model Lotka- Volterra merupakan model interaksi antar spesies mangsa dan spesies pemangsa pada sebuah lingkungan dan dinyatakan dalam bentuk persamaan taklinear. Persamaan Lotka-Volterra diselesaikan dengan metode homotopi Pade'. Metode hemotopi Pade' merupakan pengembangan dari metode homotopi. Dalam hal ini, penyelesaian dengan menggunakan metode homotopi Pade' diperoleh dengan menggunakan penyelesaian dengan menggunakan metode homotopi. Metode homotopi Pade’ lebih cepat mencapai kekonvergenan dibandingkan dengan metode homotopi. Dengan metode homotopi Pade' diberikan suatu interpretasi fisis untuk kasus mangsa lebih banyak dari pemangsa.
Spektrofotometer Quali-Vis dan Kemometrika untuk Klasifikasi Kualitas Daun Wungu (Graptophyllum pictum) Putri, Silvi Agusri; Heryanto, Rudi; Rohaeti, Eti
Jurnal Jamu Indonesia Vol. 3 No. 3 (2018): Jurnal Jamu Indonesia
Publisher : Tropical Biopharmaca Research Center, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jji.v3i3.66

Abstract

Spektrofotometer Quali-Vis digunakan untuk mengklasifikasikan 3 sampel daun wungu dengan usia panen berbeda. Penelitian ini bertujuan mengevaluasi model klasifikasi menggunakan spektrofotometer Quali-Vis secara kualitatif. Model dikembangkan dengan akuisisi data menggunakan principle component analysis (PCA) dan partial least square-discriminant analysis (PLS-DA). Karakteristik awal sampel daun wungu ditentukan dengan analisis sidik jari kromatografi lapis tipis (KLT) yang menampilkan profil yang berbeda pada masing-masing usia panen. Perbedaan ini menjadi dasar klasifikasi untuk model PLS-DA yang terdiri atas model usia 1 bulan, 2 bulan, dan 3 bulan, yang menghasilkan rerata R2pred = 0.7794 dan root mean square error predict (RMSEP) = 0.2180. Model divalidasi dengan menentukan nilai parameter sensitivitas, spesifitas, presisi, dan akurasi yang menghasilkan nilai rerata masing-masing 0.95, 0.99, 0.98, dan 0.98 kesesuaian prediksi. Nilai-nilai ini menunjukkan bahwa model yang dikembangkan memiliki kemampuan klasifikasi yang cukup baik.
Analisis Sidik Jari Kromatografi Lapis Tipis Rimpang Temu Mangga (Curcuma mangga) Syafi’i, Makmum; Rohaeti, Eti; Wahyuni, Wulan Tri; Rafi, Mohamad; Septaningsih, Dewi Anggraini
Jurnal Jamu Indonesia Vol. 3 No. 3 (2018): Jurnal Jamu Indonesia
Publisher : Tropical Biopharmaca Research Center, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jji.v3i3.68

Abstract

Profil sidik jari kromatografi lapis tipis (KLT) dapat dimanfaatkan untuk kendali mutu bahan baku maupun produk tumbuhan obat. Penelitian ini bertujuan mengembangkan metode analisis sidik jari rimpang temu mangga (Curcuma mangga) untuk kendali mutunya. Rimpang kering temu mangga diekstraksi menggunakan metanol dan dianalisis sidik jari KLT. Kloroform:etil asetat (8.5:1.5) merupakan fase gerak optimum yang memisahkan 11 pita dari rimpang temu mangga dengan keterpisahan yang baik dan memiliki pita khas biru tua (Rf 0.36). Demetoksikurkumin terdeteksi pada rimpang temu mangga dengan warna jingga kecoklatan pada UV 366 nm (Rf 0.48) setelah diderivatisasi dengan pereaksi asam sulfat 10%. Pengujian spesifitas terhadap rimpang lain dalam satu genus, rimpang temu mangga menunjukan pola yang berbeda. Validasi metode analisis sidik jari KLT memenuhi kriteria keberterimaan, sehingga metode ini dapat digunakan untuk kendali mutu rimpang temu mangga.
Antidiabetic Activity of Manonjaya Snakefruit Skin Extract with Zebra Fish (Danio rerio) as Animal Model Eti Rohaeti; Dea Nurafifah; Irmanida Batubara
Jurnal Jamu Indonesia Vol. 7 No. 3 (2022): Jurnal Jamu Indonesia
Publisher : Tropical Biopharmaca Research Center, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jji.v7i3.201

Abstract

This research aimed to determine the active fraction and profile of active compounds in Manonjaya sSnakefruit skin extract that can be used as antidiabetic and the antidiabetic activity using zebra fish. Manonjaya sSnakefruit skin was extracted by maceration using 70% ethanol and then fractionated using n-hexane, ethyl acetate and methanol. The ethyl acetate fraction showed the highest yield and total phenolic content as well as the strongest α-glucosidase inhibition with an inhibition percentage of 64.43%. The ethyl acetate fraction provided the most active spot as an α-glucosidase inhibitor. The profile of active compounds that act as antidiabetic compound is flavonoid from glycosylflavone and flavone groups. Antidiabetic activity using zebra fish was indicates that Manonjaya Snakefruit skin extract from ethanol extract and ethyl acetate fraction can decrease blood sugar level of zebra fish after induced with alloxan. The crude extract group had 54.51% lower sugar content than the induction group and 41.70% lower than the negative control. Meanwhile, the ethyl acetate fraction group had 65.10% lower sugar content than the induction group and 55.27% lower than the negative control.
Co-Authors A. KUSNANTO Abdul Rohman Achmad Fauzi Achmad Fauzi Ade Heri Mulyati, Ade Heri Aditya Kurniawan Aditya Kurniawan Agustina, Rofiqoh Inayati Aini, Nazwa Aisyah Akhmad Aghzath, Ananjaya Ali Mahmoud Muddathir Ali Mahmoud Muddathir Ali Miftahudin Anak Agung Gede Sugianthara Antonio Kautsar Arinana Arinana Arnold Patogi Siahaan Arnold Patogi Siahaan Aryo Tedjo Asih Gayatri Astrid Novita, Astrid Bambang Prajogo Eko Wardojo Budi Riza Putra Budi Riza Putra Budi Riza Putra Budi Santoso, Arianto Casnan Casnan Casnan, Casnan Citra Ajeng Palupi Dea Nurafifah Dea Nurafifah Deden Saprudin Derry Permana Dewi Anggraeni Septaningsih Diposani, Diva Putri Djeni Hendra Djeni Hendra Djoko Santoso Dodi Nandika Dudy Imanuddin Effendy Dyah Iswantini Eni Sumarni Erliza Noor Erniati Fadila Karunina Fendy Folkes Laumal Hadjomidjojo, Hartrisari Hafshah, Nurul Hartrisari Hadjomidjojo Hartrisari Hardjomidjojo Herry Suhardiyanto Ibrahim Ibrahim Ibrahim Ida Ayu Putu Sri Widnyani Irene, Angelina Irmanida Batubara Irzaman, Irzaman Jaharuddin Jaharuddin, Jaharuddin Karomah, Alfi Hudatul Khoirotul Muzayanah KUSNANTO, A. Latifah K Darusman Latifah K Darusman Latifah K. Darusman Latifah K. Darusman Latifah Kosim Darusman Latifah Kosim Darusman Lina Karlinasari Linda Trivana Linda Trivana Linda Trivana, Linda Lucia Dhiantika Witasari, Lucia Dhiantika M. Rafi Madya, Muhammad Miftahul Makmum Syafi’i Manggar Arum Aristri Mardiana, Eni Moh Arif Rohman Nur Hakim Moh Nur Hakim Mohamad Rafi Mohamad Solahudin Muddathir, Ali Mahmoud Muhammad Bachri Amran Munandar, Rafly N. G. Pamungkas Novia Rahma Nur Adi Saputra Nur Adi Saputra Nurdiani Nurdiani, Nurdiani Nurhajawarsi Nurhajawarsi Nursifa Mawadah Purnawan Purnawan Purnawan Purnawan Putri, Silvi Agusri Rachmayanti, Yanti Rahadyanoto Trimulia Rahmawati, Heni Ramadhanti, Desi Reni Febriani Reni Febriani, Reni Rinaldi Idroes Rudi Heryanto Santoso, Arianto Budi Satriah, Lilis - Septaningsih, Dewi Anggraini Shadila Fira Asoka Siahaan, Arnold Patogi Silvia, Riva Siti Aisyah Slamet Widodo Sri Sugiarti Supriyanto Syafi’i, Makmum Syifa Muflihah Tamida Elinda Taopik Ridwan Trisni Untari Dewi Ummu Salma Al Azizah Uswatun Hasanah Utami Dyah Syafitri Wulan Tri Wahyuni Yudiwanti Yuspian Nur