Article Per Year (5 Year)
p-Index From 2020 - 2025
0.408
P-Index
This Author published in this journals
All Journal Indonesian Journal of Chemical Studies (Indones. J. Chem. Stud.) Makara Journal of Science
Alfiani, Putri
Unknown Affiliation
Chemistry

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Polyvinyl Alcohol–Red Cabbage Nanofibers as pH-Responsive Freshness Sensors for Advanced Food Packaging Technology Foliatini, Foliatini; Wibowo, Singgih; Rochaeni, Henny; Suhartini, Suhartini; Fachrurrazie, Fachrurrazie; Prianditya, Arzzaq Imanda; Hadriansyah, Pradnadia Putri; Siregar, Naura Athira Putri; Nurpadilah, Novi; Alfiani, Putri; Rahim, Maudi; Sriwahyuni, Endah
Makara Journal of Science Vol. 28, No. 3
Publisher : UI Scholars Hub

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The development of innovative food packaging technologies, particularly those capable of monitoring freshness, has become increasingly important in the food industry. This research explores the development of a pH-responsive freshness sensor using polyvinyl alcohol–red cabbage (PVA/RC) nanofibers. The nanofibers are fabricated through the electrospinning technique and meticulously analyzed via scanning electron microscopy, Fourier-transform infrared (FTIR) spectroscopy, and differential scanning calorimetry (DSC). The results underscore the fine structure of the nanofiber matrix, with an average diameter of ~68 nm. FTIR analysis substantiates the presence of anthocyanin compounds from RC within the PVA/RC nanofibers, which confirms the integration of beneficial components into the nanofiber matrix. Moreover, DSC investigations reveal the outstanding thermal properties of PVA/RC, which demonstrates the resilience of the nanofibers to higher temperatures, with a melting point of ~223 °C. Notably, the PVA/RC nanofibers with a 3:1 ratio exhibit excellent thermal stability, although the color change due to pH fluctuations shifts toward transparency. This study lays down the foundation for future exploration and the potential for a diverse array of applications and material enhancements. The findings presented herein open up new opportunities for the use of PVA/RC nanofibers in the development of freshness sensors, heralding a new era in smart food packaging technology.
Development of Adhesive Materials from Polystyrene Foam Waste Mualim, Ahmad Dzaky; Roziafanto, Achmad Nandang; Sabarno, Abiyyu Adistya Wahid; Khoirurrizal, Muhammad Fadhil; Alfiani, Putri; Maryam, Saffana; Putri, Yasinta Rahmatul
Indonesian Journal of Chemical Studies Vol. 3 No. 2 (2024): Indones. J. Chem. Stud., December 2024
Publisher : Indonesian Scholar Society

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55749/ijcs.v3i2.62

Abstract

Polystyrene is a type of plastic that is difficult to decompose naturally, leading to waste that contributes to environmental pollution. This study developed adhesive materials based on polystyrene waste to reduce environmental impacts while addressing the need for eco-friendly adhesives. The adhesives were prepared by dissolving polystyrene foam waste in gasoline and acetone with various compositions. The solvents with a composition ratio of gasoline and acetone of 100:0; 90:10; 80:20; 70:30; 60:40; and 50:50 were coded as A, B, C, D, E, and F. Tests were carried out to determine the solubility of polystyrene foam in various solvent compositions and the mechanical properties of samples, including shear force, shear strength, and strain (elongation). Paper, cardboard, and wood were used as gluing materials. The adhesive strength was also compared with that of commercial adhesives. The adhesive samples were then characterized using Fourier-Transform Infrared Spectroscopy (FTIR). The shear strength results obtained for samples code A, B, C, D, E, and F were 119.95 kPa, 103.68 kPa, 96.64 kPa, 124.56 kPa, 150.08 kPa, and 157.80 kPa, respectively. The findings showed that the adhesive sample coded F synthesized using a solvent composition of 50: 50 gasoline: acetone exhibited superior adhesive ability than other variations. This sample can potentially serve as a substitute for commercial adhesives that are suitable for bonding various materials.
Co-Authors Achmad Nandang Roziafanto, Achmad Nandang Fachrurrazie, Fachrurrazie Foliatini Foliatini Hadriansyah, Pradnadia Putri Khoirurrizal, Muhammad Fadhil Maryam, Saffana Mualim, Ahmad Dzaky Nurpadilah, Novi Prianditya, Arzzaq Imanda Putri, Yasinta Rahmatul Rahim, Maudi Rochaeni, Henny Sabarno, Abiyyu Adistya Wahid Singgih Wibowo, Singgih Siregar, Naura Athira Putri Sriwahyuni, Endah Suhartini Suhartini