Article Per Year (5 Year)
p-Index From 2021 - 2026
1.235
P-Index
This Author published in this journals
All Journal Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Community Empowerment Halal Research Journal Jurnal Pengabdian Masyarakat: BAKTI KITA Journal of Fundamentals and Applications of Chemical Engineering Scientific Contributions Oil and Gas Journal of Sustainable Environment and Society (JSES)
Alifah Nur Aini Fajrin
Universitas Pembangunan Nasional Veteran Jawa Timur
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Education Energy Engineering Languange, Linguistic, Communication & Media Public Health Social Sciences Other

Published : 7 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 7 Documents
Search

 1 
Aplikasi Kitosan berbasis Kulit Udang Sebagai Alternatif Subtitusi Lilin Pelapis dalam Rangka Peningkatan Umur Simpan Buah-Buahan: A Review Rohmah, Aisyah Alifatul Zahidah; Fajrin, Alifah Nur Aini; Gunawan, Setiyo
Halal Research Vol 2 No 2 (2022): July
Publisher : Halal Center ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j22759970.v2i2.420

Abstract

Sebagai negara dengan mayoritas penduduk beragama islam, pasar pangan di Indonesia sangat erat kaitannya dengan hukum halal haram. Salah satu pangan yang kerap dikonsumsi adalah buah-buahan, namun dengan karakternya yang mudah rusak dan membusuk, diperlukan suatu pelapis yang berperan sebagai pengawet untuk memperpanjang usia simpan buah-buahan tersebut termasuk dengan melapisi menggunakan lilin pelapis. Lilin pelapis dapat membahayakan tubuh jika dikonsumsi terus menerus sehingga tidak memenuhi syarat thayyib. Kitosan dari kulit udang dapat menjadi alternatif pengganti lilin pelapis karena dibuat dari bahan halal dan aman bagi tubuh. Kitosan dapat diproduksi secara enzimatis dan kimiawi. Proses pengkajian halal telah dilakukan baik dengan metode produksi secara enzimatik maupun kimiawi dimana keduanya memiliki beberapa titik kritis pada bahan yang digunakan yaitu pada komposisi bahan media untuk fermentasi untuk proses enzimatik dan pada penggunaan ionic liquids beserta etanol untuk proses kimiawi.
Modernization of hydroponic farming using rice husk for community food security in Karang Langit, Lamongan Pujiastuti, Caecilia; Muchamad, Raka Selaksa Charisma; Rohmah, Aisyah Alifatul Zahidah; Chakim, M. Ghufron; Fajrin, Alifah Nur Aini; Rizal, Achmad; Azka, Salsabilla
Community Empowerment Vol 10 No 8 (2025)
Publisher : Universitas Muhammadiyah Magelang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31603/ce.14476

Abstract

Rice husk waste is an abundant agricultural byproduct in Karang Langit Village, Lamongan, but its utilization is still limited, posing a potential environmental problem. This community service program aims to modernize agricultural practices by utilizing rice husk as a hydroponic growing medium to support food security and promote a circular economy. The methods applied include community coordination, carbonization of rice husks, preparation of the hydroponic system, and both theoretical and practical hands-on training. Evaluation results show a significant increase in participants’ knowledge by 32%. A total of 85% of participants successfully prepared a viable rice-husk-based growing medium, and 75% were able to cultivate and harvest leafy vegetables in the trial phase. Additionally, a farmer group was formed and is committed to independently continuing hydroponic practices after the program’s conclusion. These results confirm that utilizing rice husk as a hydroponic medium not only enhances community skills and self-sufficiency but also opens new economic opportunities. This model is recommended for replication in other agricultural areas to support local food security and environmental sustainability.
Characterization of Poly Lactic Acid (PLA) Based on PEG-200 Modification of Clay-CaCO3 as Subtitution to LDPE Coating Paper Rohmah, Aisyah Alifatul Zahidah; Widjaja, Tri; Sari, Citra Yulia; Fajrin, Alifah Nur Aini
Journal of Fundamentals and Applications of Chemical Engineering Vol 6, No 1 (2025)
Publisher : LPPM, Institut Teknologi Sepuluh Nopember, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j2964710X.v6i1.23018

Abstract

Plastics play a central role in daily life due to their lightweight nature, mechanical strength, low cost, and durability. Nevertheless, their environmental impact is significant, as they contribute to pollution and global warming. Polylactic Acid (PLA) has gained attention as a biodegradable alternative to conventional LDPE plastics. Although environmentally friendly, PLA exhibits inherent limitations such as brittleness and insufficient toughness, which restrict its broader application. To overcome these drawbacks, plasticizers like Polyethylene Glycol (PEG) 200 and reinforcing agents such as clay and calcium carbonate (CaCO₃) are added to enhance its mechanical performance. This research aims to investigate how these additives affect the resulting film properties. The bioplastic film was produced using a solvent casting method with chloroform as the solvent. The mixture was stirred at ambient temperature for six hours, then cast in a single step into a closed mold and allowed to rest overnight to form a film. The resulting film had a white appearance, slight transparency, and a smooth, slippery surface. Compared to films produced using a layered pouring approach, those formed via the one-pour technique exhibited superior thickness and mechanical strength. To characterize the effects of the additives, several analytical methods were employed: X-Ray Diffraction (XRD) to analyze crystallinity, Thermogravimetric Analysis (TGA) to assess thermal stability, Fourier Transform Infrared Spectroscopy (FTIR) to identify functional groups and chemical bonds, and Dynamic Mechanical Analysis (DMA) to determine mechanical properties such as tensile strength, Young’s modulus, and elongation at break. Surface morphology was further examined using Scanning Electron Microscopy (SEM). The most favorable results were observed in the composition containing 80% PLA, 10% PEG, 5% CaCO₃, and 5% clay. This formulation yielded a crystallinity of 96.71%, a decomposition temperature of 366.22 °C, elongation at break of 12.98%, Young’s modulus of 56.77 MPa, and a tensile strength of 1.25 MPa. These findings suggest that the film has strong potential as a coating material to replace LDPE.
OPTIMIZATION OF VALUABLE MINERALS (MG2+ & K⁺) RECOVERY FROM SEAWATER USING RESPONSE SURFACE METHODOLOGY (RSM) Raka Selaksa Charisma Muchammad; Aisyah Alifatul Zahidah Rohmah; Caecilia Pudjiastuti; Alifah Nur Aini Fajrin; Ketut Sumada
Jurnal Crystal : Publikasi Penelitian Kimia dan Terapannya Vol. 7 No. 2 (2025): Literasi Artikel Penelitian Kimia
Publisher : Program Studi Kimia, Fakultas MIPA, Universitas PGRI Banyuwangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36526/jc.v7i2.6284

Abstract

The extraction of metallic ions from seawater brine within a circular economy framework presents economic promise yet is hampered by concomitant ionic interference manifested during the precipitation of salts. The present investigation sought to characterize and subsequently to refine the co-precipitation steps for magnesium and potassium ions such that they yield suitable precursors for the synthesis of struvite fertilizer. The experimental work utilized a Response Surface Methodology built upon a Face-Centered Central Composite Design, interrogating the influence of the molar ratio of sodium hydrogen phosphate to calcium chloride and the duration of reaction on the simultaneous recovery of Mg²⁺ and K⁺. Results from the Analysis of Variance demonstrated that the principal effects of the aforementioned ratio, reaction duration, and their interaction terms were statistically significant for both target recoveries. By iterative optimization, the experimental framework predicted optimal operational parameters of sodium hydrogen phosphate to calcium chloride ratio of 0.401 and a reaction interval of 11.608 minutes, corresponding to a composite desirability statistic of 0.908 and estimated recoveries of 93.979 % and 97.300 % for magnesium and potassium ions, respectively. The data therefore substantiate the conclusion that Response Surface Methodology provides a systematic and analytically tractable conduit for the resolution of equilibrated brine mixtures, delineating a refined process envelope that promotes the extraction and economic valorization of essential mineral fertilizers from industrial saline streams.
LOCAL FOOD TRADITIONS AND STAPLE FOOD CONSUMPTION: A STUDY OF NASI ARON IN TOSARI VILLAGE Alifah Nur Aini Fajrin; Muhamad Gunawan Ashari; Novfit Frima Akbar; Roshidan; L. Abdi Zaljalaliwal Ikrom
Journal of Sustainable Environment and Society Vol. 1 No. 2 (2025): JSES
Publisher : Magister Ilmu Lingkungan, Fakultas Teknik dan Sains, UPN Veteran Jawa Timur.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33005/jses.v1i2.28

Abstract

This journal is the result of direct research in the field, the Tengger tribe is an indigenous people who inhabit the highlands around the Bromo mountain area to be precise in Tosari Village, Pasuruan District, East Java Province. The purpose of making this journal is: to be able to find out the origins of the consumption of "aron rice" as a culinary food of the Tengger tribe. This food is usually served with a variety of vegetables and side dishes such as tempeh, tofu and chicken. Nasi Aron has a distinctive taste and is rich in spices. This food has its own uniqueness because the spices used use natural and traditional ingredients such as tamarind, cayenne pepper, galangal, and shallots. Nasi Aron is also a food that is part of the cultural identity of the Tengger tribe and is one of the favorite foods for the people in the area. Nasi Aron can also be a way to maintain the culture of the Tengger tribe which is unique and rich in cultural values.
PEMANFAATAN PIGMEN ALAMI SEBAGAI PEWARNA MAKANAN DI MEDAYU SELATAN Fitria Dwi Andriani; Hanim Istatik Badi'ah; Alifah Nur Aini Fajrin
Jurnal Pengabdian Masyarakat : BAKTI KITA Vol. 7 No. 2 (2026): Mei - Oktober
Publisher : LPPM Universitas Islam Darul 'Ulum Lamongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52166/baktikita.v7i2.13976

Abstract

This community service activity aimed to improve community literacy regarding the use of natural food colorants. The activity was conducted in Medayu Selatan through an outreach session, a visual demonstration, discussion, and evaluation involving 25 participants consisting of PKK members and local residents who were targeted because of their role in household food selection and preparation. Participants were introduced to anthocyanins, carotenoids, chlorophyll, and betalains, including the response of natural pigments to pH and heat. Understanding was evaluated using an identical 10-item multiple-choice pretest and posttest. The mean score increased from 57.2 to 86.0, an increase of 28.8 points, and 22 participants (88%) achieved a posttest score of at least 80. Immediate observation also showed that 21 participants (84%) were able to select an appropriate natural colorant in a simple food-use scenario. In addition, 23 participants (92%) expressed interest in trying natural colorants at home; however, this interest was distinguished from sustained behavioral change, which had not yet been verified. The activity therefore improved short-term understanding and practical readiness, while follow-up monitoring is required to assess household application.
Influence of Expanded-Air Fraction on Product Distribution and Energy Performance of Turboexpander and Joule–Thomson Refrigeration Systems in Double-Column Cryogenic Air Separation Units Ratri Puspita Wardani; Mohammad Irwan Fatkhur Rozy; Amani Salsabil Husodo; Alifah Nur Aini Fajrin; Fitria Dwi Andriani; Kharin Nova Ledya Rezkirana; Siti Fatimatus Zahro
Scientific Contributions Oil and Gas Vol 49 No 3 (2026)
Publisher : Testing Center for Oil and Gas LEMIGAS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29017/scog.v49i3.2136

Abstract

Cryogenic air separation units (ASUs) are the most widely applied technology for producing high-purity oxygen and nitrogen for industrial applications. Conventional double-column ASUs generally employ either turboexpander- or Joule–Thomson (JT) valve-based refrigeration systems, whose refrigeration performance strongly influences product distribution and overall energy consumption. Since the amount of refrigeration generated by a turboexpander depends on the fraction of compressed air directed to the expansion process, optimizing the expanded-air fraction offers a promising approach to improve the energy performance of cryogenic ASUs. This study investigates the effect of expanded-air fraction on the performance of a cryogenic ASU and compares turboexpander- and Joule–Thomson (JT) valve-based refrigeration systems using Aspen HYSYS simulation. The simulation was performed using a feed air flow rate of 12,000 kmol.h⁻¹ at 30°C and atmospheric pressure, while the expanded-air fraction in the turboexpander configuration was varied from 20% to 50% of the total feed airflow. Increasing the expanded-air fraction enhanced refrigeration generation and power recovery, resulting in lower column thermal duties and specific power consumption. Gaseous nitrogen production increased from 2,418 to 5,055 kmol.h⁻¹, while liquid nitrogen production decreased from 7,000 to 4,375 kmol.h⁻¹. Temperature profile analysis of the low-pressure column showed that additional refrigeration lowered the operating temperature and improved vapor–liquid equilibrium, promoting oxygen enrichment in the liquid phase and nitrogen enrichment in the vapor phase. Consequently, oxygen purity increased from 97.4% to 98.0%, while nitrogen and oxygen recoveries remained above 99%. The optimum performance was obtained at 50% expanded air, achieving the lowest specific power consumption of 354.5 kWh.ton⁻¹ GOX. Compared with the JT valve configuration, the turboexpander reduced the specific power consumption by approximately 6.1% owing to simultaneous refrigeration generation and mechanical work recovery. These findings demonstrate that optimizing the expanded-air fraction provides an effective operational strategy for improving both product flexibility and energy efficiency in double-column cryogenic ASUs.
Co-Authors Achmad Rizal Aisyah Alifatul Zahidah Rohmah Amani Salsabil Husodo Azka, Salsabilla Caecilia Pudjiastuti Fitria Dwi Andriani Hanim Istatik Badi'ah Ketut Sumada Kharin Nova Ledya Rezkirana L. Abdi Zaljalaliwal Ikrom M. Ghufron Chakim Mohammad Irwan Fatkhur Rozy Muhamad Gunawan Ashari Novfit Frima Akbar Pujiastuti, Caecilia Raka Selaksa Charisma Muchammad Ratri Puspita Wardani Roshidan Sari, Citra Yulia Setiyo Gunawan Siti Fatimatus Zahro Widjaja, Tri