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Analit: Analytical And Environmental Chemistry
Published by Universitas Lampung
ISSN : 25408224     EISSN : 25408267     DOI : 10.47352/analit
Core Subject :
Analit is a scientific journal that contains research results and reviews in the field of analytics and the environment. Fields of research studies or review articles that can be published in this journal include analytical chemistry, biosensor, chemical sensor, synthesis and characterization of materials, renewable-energy-related functional materials, environmental chemistry, remediation and waste treatment technologies, green chemistry and sustainability, as well as applied chemistry for environmental health and industrial processes.
Arjuna Subject : -
Articles 173 Documents
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SYNTHESIS AND CHARACTERIZATION OF FILM LABELS USING ANTHOCYANIN FROM PURPLE SWEET POTATO SKIN (Ipomea Batatas L.) AS A QUALITY INDICATOR OF CHICKEN MEAT IN SMART PACKAGING Arzeti Zainal; Diana Eka Pratiwi Eka Pratiwi; Hasri Hasri
Analit : Analytical and Environmental Chemistry Vol. 10, No. 01 April (2025) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/analit.v10i01.225

Abstract

The demand for smart packaging that provides real-time information on food freshness and safety continues to rise with growing consumer awareness of product quality. This study aimed to synthesize and characterize anthocyanin-based film labels from purple sweet potato peel (Ipomoea batatas L.) as freshness indicators for chicken meat. Anthocyanins were extracted via maceration using 96% ethanol acidified with 1% HCl and tested for color stability at pH 2–11. Films with 0%, 3%, 5%, and 7% anthocyanin concentrations were prepared. The films showed color changes from purple (pH 5.8) to greenish yellow (pH 8.7) with increasing meat pH, indicating spoilage. Physical tests revealed a water vapor transmission rate of 4.40 g/h·m², thickness of 0.08 mm, solubility of 40%, and biodegradability of 100%. FTIR analysis confirmed characteristic anthocyanin functional groups (O–H, C–H, C=C, aromatic C–H). Overall, the film shows potential as a natural and eco-friendly indicator for smart packaging to monitor chicken meat freshness.
TAGUCHI EXPERIMENTAL STUDY: THE EFFECT OF BAY LEAF EXTRACT WEIGHT PERCENTAGE AND SAMPLE SIZE ON THE CHARACTERISTICS OF POLYVINYL ALCOHOL FILMS Hery Sunarsono; Hairul Abral; Adjar Pratoto; Elisabeth Feberlian Gulo; Melbi Mahardika; Mat Uzir Wahit; Vitri Aprila Handayani
Analit : Analytical and Environmental Chemistry Vol. 10, No. 02 October (2025) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/analit.v10i02.231

Abstract

This research aims to determine the optimum parameters for incorporating Indonesian bay leaf extract (DS) into a polyvinyl alcohol (PVA) matrix to form a new polymer, PVA/DS. Taguchi's experimental method was employed to obtain the anti-UV properties and optimal mechanical characteristics of the PVA/DS polymer. Factors studied include DS concentration and sample size. The experimental design was prepared using an orthogonal array L16. The ability to block UV radiation (anti-UV) and the mechanical properties of polymer films are determined using UV Vis spectra and tensile testing (ASTM D638). The results of the Signal-to-Noise Ratio analysis show that the DS concentration factor is the most dominant variable in the anti-UV response, with a DS concentration influence factor (delta) value of 72.261, compared to a sample thickness of 1.605. Likewise, for elongation at break, the delta value of DS concentration is 2.43, which is higher than the cross-sectional area of 1.31. Meanwhile, for the tensile strength performance, neither factor was significant; however, the cross-sectional area factor was more dominant than the DS concentration, with a cross-sectional area delta value of 3.29, which is higher than the DS concentration of 2.77. The addition of DS concentration to the anti-UV response is able to block 100% of UV rays compared to PVA, which is only 16%. Meanwhile, for tensile strength, there was a 50.98% increase. The tensile strength of PVA/DS1 reached 75.67 MPa compared to PVA, which was only 50.12 MPa. Meanwhile, elongation at break increased by 14.71% in PVA/DS0.5 (304.43%) compared to PVA (265.40%). Thus, this research successfully applied the Taguchi method to identify the optimum factor combination with a minimum number of experiments. PVA/DS1 film (1% DS) is a film with optimum conditions that can provide superior performance, making it an alternative to conventional plastics that do not decompose easily
ADSORPTION of METHYL ORANGE DYE USING POWDERED ACACIA (Crassicarpa) BARK AS AN ADSORBENT Mukhlis; Nafiah Pratiwi; Indriyana Syafitri Aswir; Itnawita; Sofia Anita; T. Abu Hanifah
Analit : Analytical and Environmental Chemistry Vol. 10, No. 02 October (2025) Analit : Analytical and Environmental Chemistry
Publisher : Jurusan Kimia FMIPA Universitas Lampung

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

Abstract

ABSTRAK Serbuk kulit kayu Acacia crassicarpa adalah biomassa lignoselulosa yang kaya akan selulosa, diteliti sebagai biosorben untuk menghilangkan Metil Oranye (MO) dari larutan berair. Studi ini bertujuan untuk menentukan kondisi adsorpsi optimum, termasuk dosis adsorben, pH, waktu kontak, kecepatan pengadukan, konsentrasi adsorbat, dan suhu. Eksperimen adsorpsi dilakukan menggunakan sistem batch, dan adsorben dikarakterisasi menggunakan analisis FTIR, SEM-EDS, dan BET. Kondisi optimum diperoleh pada dosis 0,75 g, pH 2, waktu kontak 80 menit, kecepatan pengadukan 200 rpm, konsentrasi MO 20 ppm, dan suhu 30 °C, mencapai efisiensi adsorpsi sebesar 82,34% dan kapasitas sebesar 5,6492 mg/g. SEM-EDS menunjukkan morfologi berpori yang didominasi oleh unsur karbon dan oksigen. Analisis BET menunjukkan luas permukaan sebesar 0,460 m²/g, sedangkan FTIR mengkonfirmasi keberadaan gugus fungsional hidroksil, karbonil, dan aromatik yang terlibat dalam adsorpsi. Hasil ini membuktikan bahwa akasia dapat menjadi adsorben.     ABSTRACT Acacia crassicarpa bark powder, a lignocellulosic biomass rich in cellulose, was investigated as a biosorbent for the removal of Methyl Orange (MO) from aqueous solutions. This study aimed to determine the optimum adsorption conditions, including adsorbent dosage, pH, contact time, stirring speed, adsorbate concentration, and temperature. Adsorption experiments were conducted using a batch system, and the adsorbent was characterized using FTIR, SEM-EDS, and BET analyses. The optimum conditions were obtained at a dosage of 0.75 g, pH 2, contact time of 80 min, stirring speed of 200 rpm, MO concentration of 20 ppm, and temperature of 30 °C, achieving an adsorption efficiency of 82.34% and a capacity of 5.6492 mg/g. SEM-EDS showed a porous morphology dominated by carbon and oxygen elements. BET analysis showed a surface area of ​​0.460 m²/g, while FTIR confirmed the presence of hydroxyl, carbonyl, and aromatic functional groups involved in the adsorption. These results prove that acacia can be an adsorbent.  

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