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All Journal Jurnal Rekayasa Proses Reaktor JURNAL INTEGRASI PROSES Journal of Science and Applicative Technology Jurnal Rekayasa Proses Indonesian Journal of Chemical Analysis (IJCA) Jurnal Inovasi Teknik Kimia Communication in Food Science and Technology
Edwin Rizki Safitra
Department Of Chemical Engineering, Institut Teknologi Sumatera (ITERA), South Lampung, Indonesia
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Earth & Planetary Sciences Education Energy Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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INFLUENCE OF SOLVENT POLARITY ON ULTRASOUND-ASSISTED EXTRACTION OF RUBBER SEED OIL: YIELD, CHEMICAL COMPOSITION, AND PHYSICOCHEMICAL CHARACTERISTICS Imalia, Calaelma Logys; Saputri, Desi Riana; Damayanti, Damayanti; Auriyani, Wika Atro; Alhanif, Misbahudin; Fahni, Yunita; Sanjaya, Andri; Achmad, Feerzet; Deviany, Deviany; Sufra, Rifqi; Safitra, Edwin Rizki; Sanjaya, Bagus Gelorawan; Sari, Dewi Kurnia
JURNAL INTEGRASI PROSES Vol 14, No 1 (2025)
Publisher : JURNAL INTEGRASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/jip.v14i1.31756

Abstract

Rubber seeds contain fatty acids that can be used as industrial mixtures and processed into biodiesel, soap production, and animal feed. So far, the utilization of rubber seeds has not been optimal, so rubber seeds can be processed into oil using an ultrasound-assisted extraction (UAE). The study aimed to determine the characteristics of oil from rubber seed extract, such as color, odor, and chemical compound content. In addition, the study seeks to assess the effect of solvent type (n-hexane, ethyl acetate, and ethanol), extraction time (30, 45, and 60 minutes), and ratio of material :solvent (1:5, 1:6, and 1:7 w/v) on the yield (%) of oil extract from rubber seeds. The results showed that oil from rubber seed extract obtained with n-hexane exhibited a yellow color and had a rubber seed aroma, ethyl acetate solvent produced a cloudy yellow color and had an ethyl acetate aroma, and ethanol solvent produced a brownish yellow color and had a rubber seed aroma. The most significant oil extraction result from rubber seeds is ethanol solvent with a time of 45 and 60 minutes, and a ratio of material to solvent of 1:7 w/v. The rubber seed oil content was tested using GC-MS taken from the three best samples of each type of solvent (n-hexane, ethyl acetate, and ethanol) at an extraction time of 45 minutes and a ratio of material to solvent of 1:7 w/v. The oil compound content in rubber seed extract was 90.64% using hexane, 35.95% using ethyl acetate, and 25.19% using ethanol as solvents. The oil compounds extracted using n-hexane solvent consisted of 9-octadecanoic acid, methyl ester at 63.917%, those using ethyl acetate solvent were acetic acid, butyl ester at 30.67%, and those using ethanol solvent were n-hexadecanoic acid at 9.15%.
EXTRACTION OF DAMMAR RESIN (Agathis dammara) USING MICROWAVE-ASSISTED HYDRO-DISTILLATION (MAHD) A'yuni, Dewi Qurrota; Alhanif, Misbahudin; Hasna, Afifah; Halizah, Nurul; Damayanti, Damayanti; Auriyani, Wika Atro; Fahni, Yunita; Sanjaya, Andri; Mustafa, Mustafa; Kodarif, Abdul Rozak; Rahmiyati, Lutfia; Turnip, Nina Juliana Roberta; Safitra, Edwin Rizki; Saputri, Desi Riana
JURNAL INTEGRASI PROSES Vol 14, No 1 (2025)
Publisher : JURNAL INTEGRASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/jip.v14i1.31631

Abstract

Dammar resin (Agathis dammara) is a mixture of various organic polymers in a solid or semi-solid form that can be utilised as an essential oil source. This study extracted the essential oil from dammar resin using microwave-assisted hydro-distillation (MAHD), considering its ability to extract the product in a short period with only a small amount of solvent. This study investigates the effect of solvent and extraction time on the yield of dammar resin extract. Results showed that the highest yields are 27.500, 22.902, and 15.392% for distilled water, a 1:1 v/v mixture of ethyl acetate and distilled water, and a 1:1 v/v mixture of hexane and distilled water as solvents, respectively. The optimum extraction time was different for different solvents, in the 60–90 minute range. Based on the gas chromatography-mass spectrometry (GC-MS) analysis, the dammar resin extract contains several groups of components, including alcohol and sesquiterpene groups. The alcohol group was higher after extraction using an ethyl acetate and distilled water mixture, especially 2-Butoxyethanol, with a yield of 39.706%. Meanwhile, a mixture of hexane and distilled water increased the sesquiterpene compounds in products such as Germacrene D, yielding 19.975%.
OPTIMIZATION OF PECTIN YIELD FROM KEPOK BANANA PEEL (Musa Balbisiana BBB) USING ULTRASONIC EXTRACTION WITH ACETIC ACID AND SULFURIC ACID SOLVENTS Silvia, Putri Zulva; Saputri, Desi Riana; Damayanti, Damayanti; Auriyani, Wika Atro; Fahni, Yunita; Sanjaya, Andri; Yusupandi, Fauzi; Yuniarti, Reni; Safitra, Edwin Rizki; Tiara, Mega; Pajrin, Alfina; Alhanif, Misbahudin
JURNAL INTEGRASI PROSES Vol 14, No 1 (2025)
Publisher : JURNAL INTEGRASI PROSES

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/jip.v14i1.31632

Abstract

In Indonesia, banana fruit production occupies the first position compared to other fruits. The peel constitutes approximately 40% of the total weight of the fruit, thus producing a large amount of waste. The white part of the banana peel (mesocarp) has the potential to serve as a source of pectin, which primarily functions as a thickening and gel-forming agent. Pectin can be extracted from fruit peel using acidic solvents. This research was performed using the ultrasound-assisted extraction (UAE) method. This study utilized banana peel waste produced by banana chips traders in the city of Bandar Lampung and aims to determine the effect of temperature, time, and type of extraction solvent on the yield of pectin extract from kepok banana peels (Musa balbisiana BBB), and to identify the molecular functional groups of extracted pectin with the highest yield. Based on this research, it is known that the yield increases with increasing temperature and extraction time. The optimum condition for pectin extraction from kepok banana peel (Musa balbisiana BBB) was obtained at a temperature of 70 °C with a time of 90 minutes for both acetic acid and sulfuric acid solvents, yielding 12.63 and 14.09%, respectively. FTIR spectroscopy analysis reveals that the pectin extract exhibits functional groups with characteristic absorption bands in the specific wavelength regions consistent with pectin’s structure. These include O–H stretching vibrations, –CH₃ groups in the methoxyl (COOCH₃) branch, C–H bonds, C=O carbonyl groups, C–O bonds, and ether (C–O–C) linkages.
Characterization of Cellulose Extracted from Garlic Waste via Alkaline Treatment and Its Effect on Yield Fahni, Yunita; Atro Auriyani, Wika; Amelia, Devita; Rizki Safitra, Edwin; Riana Saputri, Desi; Damayanti, Damayanti; Sanjaya, Andri; Christian Surya Atmaja, Michael; Nyoman Wiswa Kananda, I; Surya Ningrum, Riska; Mahardika, Melbi
Reaktor Volume 25 No.1 April 2025
Publisher : Department of Chemical Engineering, Faculty of Engineering, Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/reaktor.25.1.%p

Abstract

Garlic waste—including straws, bulbs, and skins—is an agricultural residue contributing to household waste. Rich in cellulose, garlic waste can be converted into various value-added products through proper processing. In this study, cellulose was extracted from garlic waste using alkaline treatment to investigate the influence of sodium hydroxide (NaOH) concentration on the characteristics of the resulting cellulose. NaOH solutions with varying concentrations of 2%, 7%, 14%, and 20% were used during the alkalization process. FTIR spectra revealed transmittance changes with increasing concentration, indicating a reduction in lignin content. The resulting cellulose exhibited needle-like structures, and garlic fibers with amorphous morphology showed cleaner surfaces at a NaOH concentration of 20%. The highest extract yield from the alkalization process was 62.7%, achieved at a NaOH concentration of 2%. These findings demonstrate the potential of garlic waste as a cellulose source and its applicability for producing derivative products such as thin films, optical fibers, and bioplastic raw materials.
Uji Efektivitas Zeolit Alam Lampung Sebagai Agen Antibakteri Masker Wajah Terhadap Propionibacterium acnes Idra Herlina; Shekinah Glory Aurellia Siregar; Roja Riliyanda Putra; Anna Azzahra Ismail; Tiarmauli Natalia Purba; Ashyfa Ramadhani; Aditya Ayu Wulanda; Mariyam; Muhammad Yogi Saputra; Edwin Rizki Safitra
Jurnal Inovasi Teknik Kimia Vol. 11 No. 2 (2026): APRIL | INTEKA - Jurnal Inovasi Teknik Kimia
Publisher : Fakultas Teknik Universitas Wahid Hasyim

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31942/inteka.v11i2.15080

Abstract

Acne vulgaris is a common skin disorder caused by clogged pores and infection by Propionibacterium acnes. The use of synthetic chemicals in skincare products often leads to side effects, highlighting the need for safer and eco-friendly natural alternatives. Natural zeolite, particularly Lampung Natural Zeolite (ZAL), has potential as an antibacterial agent due to its porous structure and adsorption capacity. This study evaluates the effectiveness of ZAL as an active ingredient in clay mask formulations against P. acnes. ZAL was activated and purified, then formulated into masks with varying concentrations (2.5 g, 5 g, and 7.5 g). Characterization was conducted using IR, XRD, and SEM, while antibacterial activity was tested using the agar diffusion method. Activation improved crystallinity and increased silanol (Si–OH) groups, enhancing antibacterial performance. The 5 g zeolite formulation showed the largest inhibition zone, indicating optimal effectiveness. Overall, ZAL demonstrates strong potential as a natural antibacterial agent for facial mask products.
Optimization of Sequential Microwave–Ultrasound-Assisted Extraction of Turmeric (Curcuma longa L.) Using Response Surface Methodology and Evaluation of Its Antioxidant Activity Safitra, Edwin Rizki; Herlina , Idra; Saputri, Desi Riana; Fahni, Yunita; Damayanti, Damayanti; A'yuni, Dewi Qurrota; Serunting, Muhamad Allan
Indonesian Journal of Chemical Analysis (IJCA) Vol. 9 No. 2 (2026): Indonesian Journal of Chemical Analysis
Publisher : Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/ijca.vol9.iss2.art4

Abstract

Turmeric (Curcuma longa L.) is a natural source of curcuminoids, particularly curcumin, with potential applications in food, pharmaceutical, and cosmetic products. This study evaluated a two-stage microwave pretreatment-ultrasound- assisted extraction process for curcumin recovery from turmeric. Separate three-factor Box–Behnken designs were used to evaluate the effects of liquid-to-solid ratio (LSR), microwave power, and extraction time during microwave-assisted extraction (MAE), and the effects of LSR, extraction temperature, and sonication time during ultrasound-assisted extraction (UAE). Curcumin concentration was determined using UV–Vis spectrophotometry at 465 nm. The MAE model was significant (p < 0.0001) and showed that LSR was the most influential factor. The highest observed MAE yield was 6.354 mg g⁻¹ at an LSR of 5:1 mL g⁻¹, microwave power of 500 W, and extraction time of 1.5 min. The UAE model was also significant (p = 0.0089), with LSR and temperature significantly affecting curcumin yield. The highest observed UAE yield was 10.783 mg g⁻¹ at an LSR of 30:1 mL g⁻¹, 40 °C, and 5 min. The highest- yield extract exhibited an IC₅₀ value of 6.22 mg L⁻¹ in the DPPH assay. These results indicate that the two-stage extraction approach can improve curcumin recovery; however, independent validation experiments are required to confirm the predicted optimum conditions.
Analysis of Vitamin A Content and Antioxidant Test in Super and Bulk Olein Desi Riana Saputri; Yuniar Luthfia Listyadevi; Muhammad Alparidi Pamungkas Putra; Muhammad Triyogo Adiwibowo; Andri Sanjaya; Damayanti Damayanti; Wika Atro Auriyani; Yunita Fahni; Fauzi Yusupandi; Reni Yuniarti; Edwin Rizki Safitra
Communication in Food Science and Technology Vol. 3 No. 2 (2024): Communication in Food Science and Technology
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat, Institut Teknologi Sumatera

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35472/cfst.v3i2.1980

Abstract

Cooking oil is the essential food for bodies. Cooking oil should be enriched with vitamin A because this substance plays a critical role in maintaining health. Cooking oil contains antioxidant compounds, which inhibit or slow down oxidation reactions. This study aimed to determine the amount of vitamin A in super olein and bulk olein before fortification and the amount of antioxidant content in super olein and bulk olein before fortification. The amount of vitamin A content was obtained using the High-Performance Liquid Chromatography (HPLC) method of <0.005 IU/gram, while the antioxidant test results were carried out by the 2,2-Diphenyl-1-picrylhydrazyl (DPPH) method using UltraViolet-Visible Spectrophotometry (UV-Vis). The resulting antioxidant activity has an inhibition value of 23% and 10% in bulk and super olein, respectively. Cooking oil is the essential food for bodies. Cooking oil should be enriched with vitamin A because this substance plays a critical role in maintaining health. Cooking oil contains antioxidant compounds, which inhibit or slow down oxidation reactions. This study aimed to determine the amount of vitamin A in super olein and bulk olein before fortification and the amount of antioxidant content in super olein and bulk olein before fortification. The amount of vitamin A content was obtained using the High-Performance Liquid Chromatography (HPLC) method of <0.005 IU/gram, while the antioxidant test results were carried out by the 2,2-Diphenyl-1-picrylhydrazyl (DPPH) method using UltraViolet-Visible Spectrophotometry (UV-Vis). The resulting antioxidant activity has an inhibition value of 23% and 10% in bulk and super olein, respectively.
Co-Authors A'yuni, Dewi Qurrota A'yuni, Dewi Qurrota Aditya Ayu Wulanda Akbar, Daffa Ahsanul Aldillah Herlambang Alhanif, Misbahudin Amelia, Devita Andri Sanjaya Anna Azzahra Ismail Ashyfa Ramadhani Atro Auriyani, Wika Auriyani, Wika Atro Budhijanto Budhijanto Christian Surya Atmaja, Michael Damayanti Damayanti Damayanti Damayanti Desi Riana Saputri Deska Lismawenning Puspitarum Deviany Deviany, Deviany Dwi Cahyani Fahni, Yunita Fahni, Yunita Fauzi Yusupandi Feerzet Achmad Galeh Widharma Halizah, Nurul Hasna, Afifah Idra Herlina Imalia, Calaelma Logys Kodarif, Abdul Rozak Latif Al Qadri Mahardika, Melbi Mariyam Mariyam Muhamad Allan Serunting Muhammad Alparidi Pamungkas Putra Muhammad Triyogo Adiwibowo Muhammad Yogi Saputra Mustafa, Mustafa Nina Juliana Roberta Turnip Nyoman Wiswa Kananda, I Pajrin, Alfina Rahmiyati, Lutfia Ratih Ainun Mardiyah Reni Yuniarti Riana Saputri, Desi Rifqi Sufra Rochmadi Rochmadi Roja Riliyanda Putra Sanjaya, Bagus Gelorawan Saputri, Desi Riana Saputri, Desi Riana Sari, Dewi Kurnia Shekinah Glory Aurellia Siregar Shifa, Naufal Brain Silvia, Putri Zulva Surya Ningrum, Riska Tiara, Mega Tiarmauli Natalia Purba Wicaksono, Rihardian Maulana Wika Atro Auriyani Yuniar Luthfia Listyadevi Yuniarti, Reni Yunita Fahni Yusupandi, Fauzi