cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
Masruri
Contact Email
masruri@ub.ac.id
Phone
+62341-575838
Journal Mail Official
jpacr@ub.ac.id
Editorial Address
Departemen Kimia, Fakultas MIPA, Universitas Brawijaya, Jl. Veteran 65145 Malang
Location
Kota malang,
Jawa timur
INDONESIA
The Journal of Pure and Applied Chemistry Research
Published by Universitas Brawijaya
ISSN : 23024690     EISSN : 25410733     DOI : http://dx.doi.org/10.21776/ub.jpacr
Core Subject : Health, Science, Engineering,
Chemical Engineering, Chemistry & Bioengineering Chemistry Materials Science & Nanotechnology Medicine & Pharmacology
The Journal of Pure and Applied Chemistry Research focuses in publishing research articles in the field of Chemistry and Applied Chemistry. The target is in exploring, investigating, and developing chemicals sources from local and/or Indonesian to increase the value. Scope of the journal is organic chemistry, analytical chemistry, inorganic chemistry, biochemistry, and physical chemistry. Included the topic also organic chemistry natural product, theoretical and computational chemistry.
Arjuna Subject : Kimia(semua kategori) - Kimia (Lain-Lain)
Articles 307 Documents
 25   26   27   28   29 
Identification of volatile compounds in several meat and bone broth using Solid Phase Micro Extraction-Gas Chromatography Mass Spectrometry (SPME-GCMS) for initial detection of Halal and Non-Halal Food Diana Candra Dewi; Chanif Mahdi; Hermin Sulistyarti; Aulani`am Aulani`am
The Journal of Pure and Applied Chemistry Research Vol 12, No 2 (2023): May-August 2023
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2023.012.02.3308

Abstract

The development of techniques for detecting halal and non-halal animal meat is of great importance as a useful tool for monitoring and assuring food quality for Muslim. Flavor or aroma is one of the sensory attributes for consumers to distinguish broth cattle. The differences aroma of broth cattle is contributed by the content of volatile compounds. This study was aimed to determine the composition of volatile compounds in meat and bone broth from five different animals, i.e., cow (beef), pig (pork), goat, lamb, and chicken for initial identification of halal and non halal food. A preliminary test for samples of meat and bone broth was done by identifying their physical properties including pH, viscosity, and density. The volatile compounds in meat and broth samples were extracted using a solid phase-micro extraction (SPME) at room temperature and analyzed by gas chromatography-mass spectrometry (GCMS). The results revealed the physical properties of meat and bone broth, i.e. pH, viscosity, and density, cannot be used to distinguish the type of broth produced from beef, pork, goat, lamb, and chicken. Successful results for the identification were achieved through chromatogram profile of volatile compounds from meat and bone broth which show characteristics to each type of animal, and therefore it can be used to distinguish pork from beef, goat, lamb, and chicken as initial detection for halal and non halal food. The research also identified 7 predominant volatile compounds as a marker for meat pork and other 8 specific compounds marker for pork bone.
Antidiabetic Activity of the Methanol Fraction of Sungkai Leaves (Peronema canescens Jack) Indra Lasmana Tarigan; Anggi Ayunda Triani; Madyawati Latief
The Journal of Pure and Applied Chemistry Research Vol 12, No 2 (2023): May-August 2023
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2023.012.02.699

Abstract

Diabetes Mellitus (DM) is one of a group of metabolic diseases characterized by hyperglycemia caused by a disturbance in insulin so that blood glucose levels increase. Prevention of absorption of blood glucose by the intestine can be done with the help of the enzyme α-glucosidase. Based on the results of phytochemical tests, it is known that the methanol fraction of sungkai leaves contains flavonoid compounds. The Fourier Transform Infra-Red (FTIR) spectrum showed that the isolates had phenolic O-H groups (3,354.53 cm-1, 1,359.28 cm-1), aromatic C=C group (1,615.48 cm-1), C-O-C ether group (1,046.60 cm-1) and aromatic C-H group (822.21 cm-1). In vivo antidiabetic activity test was carried out using test animals of white male mice which were induced by alloxan. Antidiabetic testing was carried out using 6 treatment groups with glibenclamide, Na-Carboxymethyl cellulose (Na-CMC) 0.5%, dose 175 mg/kgBW, 350 mg/kgBW, 700 mg/kg Body Weight (BW) and isolates 2 mg/kgBW. The results showed that the methanol fraction of sungkai leaves had the best antidiabetic activity at a dose of isolate and 700 mg/kgBW which was able to reduce blood glucose levels by 42.20% and 42.00%. In vitro antidiabetic testing through α-glucosidase enzyme inhibition mechanism did not show any antidiabetic activity at concentrations of fractions 5, 10, 25, 50 and 100 ppm.
Effect of Avocado Seed Ethanol Extract (Persea americana Mill) on Superoxide Dismutase (SOD1) and Histological Expression of Pancreas in Rats (Rattus norvegicus) with Diabetes Millitus Fauziah Usman; Nurhaida Nurhaida; Binawati Ginting; Aulanni’am Aulanni’am
The Journal of Pure and Applied Chemistry Research Vol 12, No 2 (2023): May-August 2023
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2023.012.02.3297

Abstract

Diabetes mellitus causes a pancreatic β-cells damage due to the increase of oxidative stress, thereby reducing Superoxide Dismutase 1 (SOD1) activity. This enzyme activity can be increased by utilizing antioxidant compounds from the avocado seed extract. This study aims to determine the increase of SOD1 expression and the repair of pancreatic β-cells tretaed with the ethanol extract of avocado seeds (Persea americana Mill). It is also aimed to observe the expression of pancreatic SOD1 and its histopathology change. The expression was measured by using immunohistochemical. This research used 20 Wistar rats aged of 2-3 moths, weighing of 150-200 grams. The diabetic rats were induced by streptozotocin (STZ) with dose of 30 mg/kg BW intraperitoneally. The rats were divided into 5 groups, namely: group 1 is healthy rats, group 2 is diabetic rats, while the group 3, 4 and 5 are therapeutic groups with 300, 350 and 400 mg/kg BW doses of ethanol extract for 14 days treatment. The results showed the ethanolic extract of avocado seeds has a potential as an antidiabetic agents based on the increase of pancreatic SOD1 (p<0.05) significantly, increase of SOD1 expression 7.6 ± 1.34, 11.6 ± 1.94 and 13.0 ± 2.82 in three different doses therapy (300, 350 and 400 mg/kg BW), and repairing structure of β-pancreatic cells on the therapeutic groups.
Computational Analysis on The Development of New Technetium-99m-labeled Pentapeptide for Cancer Molecular Imaging Targeting Integrin α5β1 Setiadi, Yanuar; Febrian, Muhamad Basit; Rattyananda, Badra Sanditya
The Journal of Pure and Applied Chemistry Research Vol. 12 No. 3 (2023): September-December 2023
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2023.012.03.659

Abstract

Cancer continues to be a major leading cause of death despite huge efforts dedicated to developing anticancer drugs. Radiopeptide is currently used for targeted therapy and diagnosis of cancer. The structure selection of new radiopeptide should be determined to minimize the decrease in binding affinity because of metal radioisotope and its chelator. In this research, the interaction of radiopeptides based on technetium metal on RGD binding pocket of integrin α5β1 and synergy pocket of integrin α5 was analyzed by molecular docking simulation using Autodock Vina and Autodock 4. Pentapeptide Pro-His-Ser-Cys-Asn (PHSCN) has two possible conformations to interact with integrin α5 which is predicted could be labeled in two possible positions. Even though the results showed that the binding value of radiolabeled compounds was lower than PHSCN’s, some radiolabeled compounds in this simulation might have biological activity. The use of HYNIC-EDDA as a chelator produces better value than DTPA and MAS3. Radiolabeling procedures in the N-terminal position of the peptide are preferable and have higher affinity than C-terminal modification. Further laboratory experiments are required to confirm the activity of EDDA-Tc-HYNIC-PHSCN-NH2 on the integrin α5β1 receptor.
Alternative Techniques for Animal Fat Authentication Based on Microscopic Crystal Pattern and Fatty Acid Composition Using Gas Chromatography-Mass Spectrometry (GC-MS) Dewi, Diana Candra; Mahdi, Chanif; Sulistyarti, Hermin; Aulanni`am, Aulanni`am
The Journal of Pure and Applied Chemistry Research Vol. 13 No. 2 (2024): Edition May-August 2024
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2024.013.02.3351

Abstract

Fat authentication is strongly required for the reason of religious food ethics, human health, and preferences. This research reported two simple techniques approach for recognizing fat based on the character of microscopic and physicochemical properties of fat extractedusing different polarity solvents. The formation of microcrystals as well as fatty acid composition were investigated by involving variables of four different types of animal fat and three different solvents. Theisolate fats were directly crystallized under incubation at room temperature and observedusing an optical microscope while fatty acid composition was determined by hydrolyzing and trans-esterifying fat samples before analysis using GC-MS. The microscopic structures of the obtained crystals areneedle-basedwitharadial orientation in spherulitic pattern which characteristic to each type of fat. The lard fat crystal was authentically distinguished from its shape of a partially radial fan, whilst the shape of fat crystals from beef, goat, and lamb are needle-shaped with a full radialorientation. Fatty acids obtained from all types of fats and types of solvents show similar types but different abundances, the main saturated fatty acids are palmitate, stearate myristic and the main unsaturated fatty acids are oleic, palmitoleic, and linoleic. Gas chromatography-mass spectrometry (GC-MS) analysis exhibited that lard composed higher ΣUSFA compared to ΣSFA but other fats (tallow, goat, and lamb) showed converse behavior.
Syntheses, Characterization, Antioxidant Activity, and Toxicity Evaluation of Schiff Base Derivates from O-Vanillin Hanapi, Ahmad; Ningsih, Rachmawati; Nafiah, Sri Ani; Nadhiroh, Ainun; Oktavianti, Fatin
The Journal of Pure and Applied Chemistry Research Vol. 13 No. 1 (2024): Edition January-April 2024
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2024.013.01.3321

Abstract

Three Schiff bases (1a, 1b, and 1c) have been prepared from the reaction of o-vanillin with primary amine (aniline, p-toluidine, and p-anisidine). Schiff base derivates from o-vanillin were synthesized using the grinding method for 20 minutes. Physical properties were observed based on color, melting point, and solubility. Synthesis products were also characterized using FTIR, GCMS, 1H-NMR, and 13C-NMR. The antioxidant activity of the Schiff base was tested using DPPH. While the toxicity test uses the BSLT method. The result of this synthesis and characterization Schiff base (1a, 1b, and 1c) showed that the Schiff base compound was formed into 2-methoxy-6 (phenyliminomethyl) phenol; 2-methoxy-6- (((4-methylphenyl) imino) methyl) phenol; and 2-methoxy-6-(((4-methoxyphenyl) imino) methyl) phenol. The result of NMR analysis, on 1H-NMR spectrum showed the shift chemical at 8,5-8,6 ppm which indicates the typical peak of proton (-HC=N-). Meanwhile, the 13C-NMR spectrum shown the shift chemical at 160-162 ppm which indicates the typical peak of carbon (-C=N-). The result of antioxidant activity showed that all Schiff base was antioxidant quite low ability with value of EC50 is 106.2-196.4 ppm. Meanwhile, the result of toxicity test showed that all Schiff base was anticancer with an LC50 value of 9.99-22.29 ppm.
Evaluation of Bioactive Compounds, Release Profiles, and Toxicity Test from Microcapsules Containing R. tuberosa L. Extracts Utilizing Gum Arabic Almayda, Nabila; Roosdiana, Anna; MASRURI, Masruri; Safitri, Anna
The Journal of Pure and Applied Chemistry Research Vol. 13 No. 1 (2024): Edition January-April 2024
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2024.013.01.3336

Abstract

This study is essential to analyze the toxicity and release of bioactive compounds in R. tuberosa L. extract microcapsules coated with gum Arabic and to provide information on the use of microcapsules as a drug delivery system with controlled release of active ingredients. Investigations focused on the effect of pH and timing on discharge kinetics, as well as toxicity evaluation. The release of active ingredients from microcapsules was carried out in medium variations, namely pH 2.2 and pH 7.4, with release durations of 30, 60-, 90-, 120-, and 150-min. Bioactive compounds were released by 59.23% at pH 2.2 and 58.21% at pH 7.4 within 150 min. The BSLT (brine shrimp lethal toxicity) assay was used using brine shrimp larvae (Artemia salina L.), resulting in a non-toxic classification as evidenced by an LC50 value of 5729 μg/mL. Microcapsules in optimum conditions were then characterized using FTIR (Fourier-Transform Infrared) and SEM (scanning electron microscopy) instruments. The FTIR analysis showed variations in functional groups in R. tuberosa L. extracts, gum Arabic, and microcapsules. Furthermore, the SEM examination highlighted the morphology of microcapsules that were mostly spherical.
Labdane Aldehyde Diterpenoids from Curcuma mangga Rhizome Wartono, Muhammad Widyo; Aini, Qurotul; Suryanti, Venty; Firdaus, Maulidan; Rakhman Wibowo, Fajar; Dewi Marliyana, Soerya; Kusumaningsih, Triana; Suci Handayani, Desi
The Journal of Pure and Applied Chemistry Research Vol. 12 No. 3 (2023): September-December 2023
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2023.012.03.694

Abstract

Curcuma mangga val. (Zingiberaceae) is one of the plants that used as traditional medicine by Indonesian. Several studies have been reported on the content of compounds of C. mangga, but it is not yet known which compounds have medicinal properties. In this study, two labdane diterpenes were isolated from the extract of rhizome of C. mangga. Determination of the structure conducted by NMR (1H, 13C, HSQC and HMBC) that obtained two compounds, calcaratarin A (1) and labda-8(17),12-diene-15,16-dial (2). Both compounds have an aldehyde functional group. However, both compounds did not show antibacterial activity on Escherichia coli.
Green Hydrothermal Synthesis of Ni(II)-MOF with Terephthalate-Pyrazine Mixed Ligands at Mild Condition Finisia, Yenni; Tjahjanto, Rachmat Triandi; Prananto, Yuniar Ponco
The Journal of Pure and Applied Chemistry Research Vol. 13 No. 2 (2024): Edition May-August 2024
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2024.013.02.6533

Abstract

Ni(II) with mixed ligand of terephthalate-pyrazine (NiTP) metal complex can form metal-organic framework (MOF) material that offer many potential applications, such as adsorbent and/or photocatalyst for dye-based wastewater treatment. Production of the NiTP by hydrothermal method in a larger scale may economically unfavorable due to it requires high temperature and long reaction time. Green synthesis of NiTP by hydrothermal method using lower temperature and shorter reaction time was investigated in this study. The synthesis was done in Ni(II):T:P mol ratio of 1:1:4 at 150 ᵒC for 10 hours. The NiTP complex was characterized by infrared spectroscopy and powder-XRD. Crystallinity degree, thermal stability, band gap energy, and pore volume of the NiTP complex were compared to that of Ni(II)-terephthalate (NiT) complex, which was also made using the same condition, to study the effect of pyrazine addition on the properties of the NiTP. This study finds that the green microcrystalline NiTP complex was successfully obtained from mild reaction condition in good yield and identical to known MOF compound of [Ni(μ3-ter)(μ2-pyr)]n.(ter = terephthalate; pyr = pyrazine). Although the synthesized NiTP complex has lower crystallinity degree compared to the NiT complex, but it has better thermal stability, lower band gap energy, and bigger pore volume; therefore, it is possible to be further developed as adsorbent and/or photocatalyst for wastewater treatment.
Immobilization of Cutinase from Fussarium oxysporum into Sea Sand Matrix for Catalytic Degradation of Polyethylene Terephthalate (PET) Prameswari, Tira P. K.; Sutrisno, Sutrisno; Roosdiana, Anna
The Journal of Pure and Applied Chemistry Research Vol. 13 No. 1 (2024): Edition January-April 2024
Publisher : Chemistry Department, The University of Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jpacr.2024.013.01.3325

Abstract

Cutinase is an enzyme that can be used as a catalyst in the hydrolysis reaction of polyethylene terephthalate (PET) waste into terephthalic acid and ethylene glycol. Generally, cutinase has low stability in its free form. Therefore, to increase cutinase stability, cutinase needs to be immobilized. In this study, cutinase was immobilized into a sea sand matrix by adsorption technique. The purpose of this study was to determine the optimum conditions of PET hydrolysis (pH, temperature, and incubation time), and to study the ability of immobilized cutinase for catalytic degradation of PET. The results show that immobilized cutinase has optimum conditions at pH 8, temperature of 50 °C, and incubation time of 24 hrs. Moreover, the immobilized cutinase can be used for up to three cycles with a residual activity percentage of 66.2% and an activity value of 23.224 nmol. g-1. min-1. The total enzyme activity of immobilized cutinase after being used in three cycles was 89.99 nmol. g-1. min-1 or 28.6% of its free enzyme activity.

Page 27 of 31 | Total Record : 307

 25   26   27   28   29 

Filter by Year

2012 2025


Reset
Filter By Issues
All Issue Vol. 14 No. 3 (2025): Edition September-December 2025 Vol. 14 No. 2 (2025): Edition May-August 2025 Vol. 14 No. 1 (2025): Edition January-April 2025 Vol. 13 No. 3 (2024): Edition September-December 2024 Vol. 13 No. 2 (2024): Edition May-August 2024 Vol. 13 No. 1 (2024): Edition January-April 2024 Vol. 12 No. 3 (2023): September-December 2023 Vol 12, No 2 (2023): May-August 2023 Vol 12, No 1 (2023): Edition January-April 2023 Vol 11, No 3 (2022): Edition September-December 2022 Vol. 11 No. 2 (2022): Edition May-August 2022 Vol 11, No 2 (2022): Edition May-August 2022 Vol 11, No 1 (2022): Edition January-April 2022 Vol 10, No 3 (2021): Edition September-December 2021 Vol 10, No 2 (2021): Edition May-August 2021 Vol 10, No 1 (2021): Edition January-April 2021 Vol 9, No 3 (2020): Edition September-December 2020 Vol 9, No 2 (2020): Edition May-August 2020 Vol 9, No 1 (2020): Edition January-April 2020 Vol 8, No 3 (2019): Edition September-December 2019 Vol 8, No 2 (2019): Edition May-August 2019 Vol 8, No 1 (2019): Edition January-April 2019 Vol 7, No 3 (2018): Edition September-December 2018 Vol 7, No 2 (2018): Edition May-August 2018 Vol. 7 No. 2 (2018): Edition May-August 2018 Vol 7, No 1 (2018): Edition January-April 2018 Vol 6, No 3 (2017): Edition of September - December 2017 Vol. 6 No. 2 (2017): Edition of May-August 2017 Vol 6, No 2 (2017): Edition of May-August 2017 Vol 6, No 1 (2017): Edition of January - April 2017 Vol 5, No 3 (2016) Vol 5, No 2 (2016) Vol 5, No 1 (2016) Vol 4, No 3 (2015) Vol 4, No 2 (2015) Vol 4, No 1 (2015) Vol. 3 No. 3 (2014) Vol. 3 No. 2 (2014) Vol 3, No 2 (2014) Vol 3, No 1 (2014) Vol 2, No 3 (2013) Vol 2, No 2 (2013) Vol 2, No 2 (2013) Vol 2, No 1 (2013) Vol 1, No 1 (2012) Vol 1, No 1 (2012) More Issue