Chemical Character Research Articles

Another Potentially Hazardous Zeolite from Northern Italy: Fibrous Mordenite

This study explored morphological, mineralogical, and physicochemical features of suspected toxic mordenite fibers from Northern Italy. All the mordenite samples (FAS1, GC1, SP1) show similar structural and chemical character, are Na-rich (Na > Ca > K), and the Al content decrease reflects the unit cell volumes in the series: FAS1 > SP1 > GC1. The aerodynamic diameter (Dae) values of the mordenite fibers are 1.19 μm for the GC1 sample, 2.69 μm for FAS1, and 3.91 μm for SP1. All the studied mordenite samples are characterized by “respirable” fibers despite the size differences, which could reach the deeper parts of the lungs. For this reason, fibrous mordenite could represent a potential health hazard and then need to be handled with attention, but further toxicity studies are needed.

GraphTGI: an attention-based graph embedding model for predicting TF-target gene interactions

Interaction between transcription factor (TF) and its target genes establishes the knowledge foundation for biological researches in transcriptional regulation, the number of which is, however, still limited by biological techniques. Existing computational methods relevant to the prediction of TF-target interactions are mostly proposed for predicting binding sites, rather than directly predicting the interactions. To this end, we propose here a graph attention-based autoencoder model to predict TF-target gene interactions using the information of the known TF-target gene interaction network combined with two sequential and chemical gene characters, considering that the unobserved interactions between transcription factors and target genes can be predicted by learning the pattern of the known ones. To the best of our knowledge, the proposed model is the first attempt to solve this problem by learning patterns from the known TF-target gene interaction network. In this paper, we formulate the prediction task of TF-target gene interactions as a link prediction problem on a complex knowledge graph and propose a deep learning model called GraphTGI, which is composed of a graph attention-based encoder and a bilinear decoder. We evaluated the prediction performance of the proposed method on a real dataset, and the experimental results show that the proposed model yields outstanding performance with an average AUC value of 0.8864 +/- 0.0057 in the 5-fold cross-validation. It is anticipated that the GraphTGI model can effectively and efficiently predict TF-target gene interactions on a large scale. Python code and the datasets used in our studies are made available at https://github.com/YanghanWu/GraphTGI.

Textural and Paleoenvironmental Characterization of the Campano-Maastrichtian Patti Sandstone, Southern Bida Basin, Northcentral Nigeria

Field and granulometric investigation of Patti Sandstone were carried out with a view towards establishing the lithological sequence, geological processes, textural characteristics and paleoenvironment of deposition of the sediments. Field study entailed basic field procedures and sedimentological descriptions which encompass physical factors such as textural parameter, composition, colour and structures; biological inference in terms of fossil content and chemical character in terms of chemical composition and post depositional diagenesis effect. Granulometric laboratory procedure includes weighing and sieving of samples with set of sieves; calculated cumulative percentages, software input of data to generate statistical parameters such as mean, standard deviation (sorting), skewness, kurtosis and ternary diagrams. Field observations show that the lower part of the outcrop section has alternation of claystone and shale; the mid-section shows coarsening-up sequence of shale, clay and sandstone facies of a retrogradational system, while the upper part is composed of intercalation of claystone and sandstone in repetitive pattern, various thicknesses and colours. The textural characteristics of the sandstone are generally coarse-fine grains, reddish to greyish in colour, rounded to subrounded and moderately to well sorted. Structurally, the outcrops are planar cross bedded, wavy laminated and concretional. Granulometric result categorized the sandstones into fine, medium and coarse grained particles; well sorted to moderately well sorted, characterized by lateral retrogradational sequence from the shoreline. The skewness varies from fine skewed, very fine skewed and symmetrical. Kurtosis values suggest multi-sourced particles deposited in marine and fluviatile paleoenvironments.

Determination of physico-chemical grain quality characters, their associations and genetic diversity in bread wheat (Triticum aestivum L.) varieties under lowland at Arba Minch, Southern Ethiopia

A set of 27 bread wheat varieties from Ethiopia was assessed for physico-chemical quality characteristics of grain under lowland. Varieties differed significantly for all the studied quality traits. Grain weight, diameter and hardness of the grain were positively associated with starch content and grain yield but negatively associated with protein content. D2 and principal component analysis grouped 27 genotypes in to four diverse genotypic clusters accounting for 89.17% of the total variation. The PC1 accounted for 46.41% of the variation with major contribution by total wet gluten, dry gluten, kernel diameter and red kernel, while PC2 accounted for 25.06% of the variation with major contribution by gluten index, kernel weight, water bound wet gluten, Zeleny index and grain yield. Based on the genetic diversity for physico- chemical characters and correlations, the appropriate varieties can be used for different food products and utilized as parents in breeding programme for improving quality.

Sintering characteristics, crystal structure and dielectric properties of cobalt-tungsten doped molybdate-based ceramics at microwave frequency

In this study, a sequence of Ce2[Zr1‐x(Co1/2W1/2)x]3(MoO4)9 (CZ1‐x(CW)xM) (x = 0.02–0.10) ceramics with excellent microwave dielectric properties were obtained by the traditional solid-phase method. The crystal structure, dielectric properties, and chemical bond characters of the ceramics were characterized and analyzed. X-ray diffraction and Rietveld refinement analysis show that CZ1‐x(CW)xM could form a single-phase of the triangular crystal system in the entire doping range. The microstructure of the ceramic samples was obtained by scanning electron microscopy. The sintering temperature was reduced and the gain of the sample was refined as the increase of doping ion content. Furthermore, the intrinsic factors affecting the properties of CZ1‐x(CW)xM were analyzed by employing P-V-L theory and through in-depth infrared analysis. When x was 0.04 and the sintering temperature was 750 °C, the best dielectric properties of the samples were achieved, including εr = 9.95, Q·f = 80,803 GHz (at 9.99 GHz), and τf = − 9.10 ppm/°C.

Chemotaxonomic and morphological classification of six Indigofera species in Jazan region, KSA

The chemical constituent pattern and morphological traits of six species of Indigofera; I. argentea, I. articulata, I. colutea, I. oblongifolia, I. hochstetteri and I. sessiliflora were surveyed and compared. The chemical characters revealed one series for all species using total estimation of secondary metabolites; alkaloids, flavonoids, saponins, tannins, terpenoids and phenolic compounds by using TLC and HPLC analysis. 26 main morphological studies were distinguished as macro and micro- characters. The studied species showed different active phytochemical constituents and high number of morphological characters. Similarity matrix and cluster analysis were constructed based on all traits. The results illustrated that there were some related and distant species by using the tree display graph besides I. hochstetteri is regarded as the transitional species among the studied species. The study confirmed that more studies should be carried out to investigate about unknown phenolic compounds.

Influence of polysaccharides with different chemical character on stability of montmorillonite suspensions in the presence of pseudoamphoteric cocamidopropyl betaine

Mixtures of the cationic starch (CS), carboxymethyl cellulose (CMC) and guar gum (GG) with the pseudoamphoteric surfactant - cocamidopropyl betaine (CAPB) were used as stabilizers of aqueous suspensions of clay mineral (CM) of montmorillonite type (MMT). The spectrophotometric method (UV–VIS) was used in to estimate the mechanism of the polysaccharide/CAPB/MMT systems stabilization. Additionally, surface tension measurements were performed to investigate the interactions between the polymers and the surfactant and the complex formation. In order to obtain complete information about the studied systems: FT-IR, XRD, SEM as well as porosity measurements were also performed for polymer/clay mineral system as well as of those in the presence of surfactant. The results show that the MMT suspensions can be successfully stabilize using chosen polysaccharides (CS, CMC and GG) able to be adsorbed on the MMT surface. The best stability of the studied suspensions was obtained with a small concentration of polysaccharides (2 ppm) and a small amount of CAPB (0.04%). It seems that this surface active agent can be the ideal option for industrial applications because its small concentration ensures very large stability of the MMT/polysaccharide suspensions.

Lecanora moniliformis sp. nov. from China

A new multispored Lecanora species from China is proposed as L. moniliformis, which is similar to L. japonica but differs by its crenate apothecial margin and the presence of psoromic acid. A detailed taxonomic description, ecological and chemical characters, and illustrations are provided for the new taxon, and a key to the multispored species of Lecanora is presented.

Multidisciplinary characterization of the “Ghiara” volcanic paleosoil (Mt. Etna volcano, Italy): Petrologic characters and genetic model

The large expanses of lava field and soils spread out around Mt. Etna volcano (Italy), make unique the landscape of the whole area. In this work, we investigated a sample set of a peculiar aggregate locally named with the term “Ghiara” collected in different outcrops of Mt. Etna volcano southern flank. A distinctive character of this material is that it is found exclusively beneath solidified lava flows. In past centuries, Ghiara was widely employed in construction field for its reddish hue and the high pozzolanic activity; for the same reasons it has now raised the interest of the scientific community involved in the formulation and production of eco-friendly materials as alternative to the traditional ones. The aim of this paper is to define its chemical and mineralogical characters and to provide a model for its genesis. We conducted a multidisciplinary analytical approach, complementary to the few investigations reported in literature, in order to define the chemical compositions by means of X-ray fluorescence (XRF), the mineralogy through synchrotron radiation X-ray diffraction (XRD) analyses and spectroscopic features by Raman and Fourier-transform infrared (FT-IR) methods. The analytical results show that the original Etnean paleosoils, mainly given by pyroclastic fall and accumulation, underwent marked modifications that produced the unique mineral assemblage of the Ghiara, characterized by the presence of hematite, a mineral responsible for its reddish appearance. The heterogeneity of the samples, however, does not allow us to define a univocal genetic model. On the basis of the outcrops geometry and the environmental conditions we propose a range of models that fit the characters of each sample. In detail, the genesis of this material can be influenced by one or all the following phenomena: i) chemical oxidation, ii) biological oxidation and iii) hydrothermal transformation by interaction of meteoric waters with volcanic volatiles from lavas. This work represents a first contribute in the knowledge of Ghiara characters and genesis, which on one side will help to a better use in its employment for construction purposes, on the other will contribute to constrain the hematite formation processes in different environments.

Chromite Composition and Platinum-Group Element Distribution in the Proterozoic Chimalpahad Anorthosite Complex, South India: Implications for Magmatic Processes and Discrimination of Tectonic Setting

Abstract The Proterozoic Chimalpahad Anorthosite Complex (CAC) is a deformed and dismembered complex in South India comprising of anorthosite-leucogabbro-gabbro-ultramafic rocks. It is located in the Nellore-Khammam Schist Belt (NKSB) within the contact zone between the Eastern Dharwar Craton (EDC) and the Eastern Ghats Belt (EGB). The chromitites occur as small dismembered lensoidal bodies within the ultramafic rocks. Presence of micrometric inclusions of iridium-like platinum-group minerals (IPGM), such as laurite (RuS2), erlichmanite (OsS2), irarsite (IrAsS), and Ir-Os-Ru alloys, is reported for the first time in the CAC chromites. The chromite cumulates preserve magmatic character (Cr#: 0.61 to 0.77; Mg#: 0.29 to 0.55), while disseminated chromites and rims of some grains (Cr#: 0.59 to 0.89; Mg#: 0.10 to 0.25) show postmagmatic modifications. The chromites are characterised by higher Cr and Al contents and lower Fe and Ti contents. The mineral chemistry of chromites such as Cr# and Mg# contents of Al2O3 (10.05–20.07 wt.%) and TiO2 (0.1 to 0.25 wt.%) typically suggests that the CAC chromitites and their ultramafic hosts were generated from the S-undersaturated boninite melt in a magmatic arc in suprasubduction tectonic setting. A general negative slope of bulk-rock PGE distribution with upward convex pattern is observed for the CAC chromitites in the chondrite-normalized plot. These geochemical and mineral chemical characters in addition to location of the chromitites and the CAC in the tectonic zone between Eastern Dharwar Craton and Eastern Ghats Mobile Belt point towards ophiolitic affinity of the CAC chromitites. Laurite (RuS2) grains are trapped close to the cores of chromites, whereas erlichmanites (OsS2) are trapped away from the cores. Textural relations indicate primary orthomagmatic nature of laurite and Or-Ir-Ru alloys and their precipitation prior to or concomitant with chromite from an S-undersaturated melt at ~1200–1300°C and log fS2 varying between −2 and −1.3. Ru-Os disulfide and erlichmanite crystallized subsequently with a gradual decrease in temperature in the differentiating ultramafic magma. Precipitation of irarsite and base-metal sulfides can be attributed to local and rapid fluctuations of temperature, fS2, and fAs during the formation of the chromitites due to influx of fresh batch of melts or crystallization in an open magmatic system. The compositional variations of laurite-erlichmanite record heterogeneous physicochemical environment during their crystallization. In addition to zoning, preservation of IPGMs in the CAC chromites points towards fast cooling of the magma possibly associated with rapid exhumation of the chromitites and their ultramafic hosts from the roots of the subcontinental lithospheric mantle (SCLM) towards their final emplacement into the crust. Occurrence of the CAC along a linear extension with the Kondapalli Ultramafic Complex and deformed remnants of ophiolites (Kandra and Kanigiri complexes) along the eastern margin of the Eastern Dharwar Craton (EDC) bordering the Eastern Ghats Belt (EGB) indicates this zone to be a Proterozoic convergent margin.

Heterosis and inheritance studies on morphological and chemical characters of tobacco

AbstractHybrid breeding provides excellent convenience in obtaining products that meet the demands of producers and the market. This study aimed to develop new hybrid tobacco (Nicotiana spp.) varieties that meet the demands of tobacco producers and buyers to provide continuity in homogenous products and genetically to determine the effects of parameters investigated. In this study, five parents (OZE S2 [P1], OZE S1 [P2], Katerini [P3], Prilep [P4], and Bozcakaldere [P5]) with different characters and 10 hybrid genotypes obtained from the five parents were tested in five different locations in Aktekke in 2018, and Aktekke, Kelikler, Seyhulas, and Huseyinbeyli in 2019. The morphological and chemical parameters of genotypes were significantly (p < .05 and p < .01) different from each other. The average leaf width, leaf length, nicotine content, yield, and phenolic contents of the hybrids were higher than those of the parents (respectively hybrids and parents; 17.2–15.3 cm, 29.6–27.1 cm, 0.81–0.72%, 1,982–1,720 kg ha–1, 9.30–8.26 g kg–1). The results can be attributed to the slight influence of environmental factors and the high performance of hybrids. The results showed that especially the effect of leaf width on yield is higher than the leaf length and number of leaves, and the leaf is more important in terms of heredity. In addition, the results revealed that the nicotine ratio could be used as the primary selection criteria and the reducing sugar ratio as the main selection criteria for the next generations. Tobacco yield and quality grade index of P1×P3, P1×P4, and P1×P5 hybrids (respectively 2,030, 2,050, 2,060 kg ha–1 and 56, 52, 55%) were higher compared with the other hybrids.

Effects of iron on coal pyrolysis-derived soot formation

Soot formation is one major challenge in developing clean and efficient utilizes based on hydrocarbon fuels. In this work, ferric nitrate was selected as an iron additive to be loaded into pulverized coal, and the pyrolysis experiment with an inert atmosphere was conducted in a high-temperature drop tube furnace (DTF). The physical and chemical character of the soot obtained from coal samples with different iron content were analyzed to explore the effect of the soot format process. The results showed that the soot yield was reduced 7% and 23%, respectively, at the same conditions when the content of iron in the coal sample was 0.51% and 0.87%. After iron was added, the diameter of soot primary particles was reduced from 50.8 nm to 37.4 and 37.8 nm, and the Df of soot aggregates increased, indicating that iron inhibited the growth process of soot primary particles and promoted the agglomeration between particles. Thus, the degree of graphitization of soot increased. In addition, the content of C–O functional groups in soot derived from coal with iron addition increased significantly, which implied that the participation of iron enhanced the oxidation reaction of soot.

Four new species of Herpothallon (Arthoniaceae, Arthoniales, Arthoniomycetes, Ascomycota) from China

Four new species of Herpothallon: H. capilliferum, H. polyisidiatum, H. subglobosum and H. viridi-isidiatum are described from southern China. Detailed taxonomic descriptions, ecological and chemical characters, and illustrations are provided for the new species. A key to all known Chinese Herpothallon species is also provided.

High thermal conductivity of carbon allotropes and its relationship with mechanical properties: A first-principles study

To date, many carbon allotropes have been proposed theoretically or/and experimentally, and a variety of attractive chemical and physical characters have been uncovered in these materials simultaneously. Although these researches have been abundant, there is still a lack of systematic studies on thermal transport properties of various carbon allotropes. In this paper, the lattice thermal conductivity κL of all common carbon allotropes with different crystal systems, such as diamond, bct-C4, bct-C8, hex-C, kagome, m-carbon, pentadiamond, t-carbon and w-carbon, has been investigated systematically through the combination of first-principles calculations with compressive sensing techniques and Boltzmann transport theory. In order to reveal the correlated factors of the heat transport, the mechanical properties of these carbon allotropes are also calculated. Strikingly, our results indicate that the κL are proportional to bulk modulus in these carbon allotropes with different crystal structures, which can be used to estimate thermal conductivity of carbon allotropes and may also be employed as the useful guides in future thermoelectric device designs. These findings show that this methodology can be used as a highly effective tool to estimate the lattice thermal conductivity of different semiconductor materials in thermal management system.

Is a focus on 'recycling' useful? A wider look at metal mutability and the chemical character of copper alloys.

Recycling is increasingly visible in archaeological descriptions of technology. This has a range of benefits as we attempt to engage with the full complexity of the material past. However, this paper examines in more detail whether a singular focus on recycling is positive for archaeological science. It considers the historical relationship between recycling and the chemical analysis of early copper alloys, the constraints of the different conceptual and statistical techniques that can be employed, and broader ideas of metal mutability and the characterisation hypothesis. Overall, anything that widens our conceptual toolkit should be welcomed. However, it is most helpful to have recycling emerge from case study data as part of a broader approach, rather than to focus on it as a sole aim. Similarly, the prioritisation of provenance has sometimes not helped the field. Engaging with a wider ‘characterisation hypothesis’ would bring several benefits, and help build collaborations with other areas of archaeology.

Bacterial Core Flooding on Limestone Artificial Core for Microbial Enhanced Oil Recovery (MEOR) Application

Microbial Enhanced Oil Recovery (MEOR) is a tertiary methods to increase oil production using bioproduct of microorganisms form acidic compounds, gases, polymers, and surfactants, as an agent that can alter the characteristics of the reservoir rock and oil. Previous laboratory research indicated that bacterial isolates indigen from petroleum reservoir, MSD4 and MSD5, with the amount of inoculum ratio 1:1 in recovery medium can reduce the viscosity value and interfacial tension of oil. The aim of this research was to determine the amount of oil recovery from low saturated oil in limestone artificial core by using bacterial core flooding method, also to determine the physical character and chemical character changes in limestone rocks and petroleum. Each bacteria, MSD4 and MSD5, were adapted to the medium SMSS that have been added by 5% oil. Inoculum of indigen bacterial cultures to be injected into the limestone core was bred in the SMSS culture medium added molasses with a varied amount, as much as 1%, 2%, and 3%. From the those variation, the amount of molasses added as much as 1% in the medium SMSS, is known that MSD4 and MSD5 cultures can grow to the highest μ respectively at the age of 16-hour and 24-hour with a value at 0.9992 hours-1 and 0, 9993 hours-1. Inoculum MSD4 and MSD5 cultures with the amount of 1:1 ratio and each bacterial cell density 107-108 cells/mL, were injected into artificial limestone cores with oil saturated less than 15%. The value of rock porosity range used for the simulation of bacterial flooding is 37% -42%, while permeability range used low permeability value (1mD-10mD) and fair permeability value (10mD-50mD). High oil recovery factor (RF%) were obtained from bacterial flooding simulation and incubated for 7 days in a temperature of 55°C on medium SMSS for cores with low permeability values and fair, has a range of 16,3% - 32% and 12% -15,3%. The result of microorganisms activity in limestone rocks from a change on physical character, have a range at -41,8% - 698% on permeability value and a range at -63,85% - 1,03% on porosity value. Indicator of bacterial attachment on limestone cores can be determined by photomicrographs analyzing Scanning Electron Microscope and Energy Dispersive X-ray Spectroscopy.

Nanoscale Metal-Organic Frameworks and Their Nanomedicine Applications.

Abundant connectivity among organic ligands and inorganic metal ions makes the physical and chemical characters of metal-organic frameworks (MOFs) could be precisely devised and modulated for specific applications. Especially nanoscale MOFs (NMOFs), a unique family of hybrid nanomaterials, with merits of holding the nature as the mainstay MOFs and demonstrating particle size in nanoscale range which enable them prospect platform in clinic. Adjustability of composition and structure allows NMOFs with different constituents, shapes, and characteristics. Oriented frameworks and highly porous provide enough space for packing therapeutic cargoes and various imaging agents efficiently. Moreover, the relatively labile metal-ligand bonds make NMOFs biodegradable in nature. So far, as a significant class of biomedically relevant nanomaterials, NMOFs have been explored as drug carriers, therapeutic preparation, and biosensing and imaging preparation owing to their high porosity, multifunctionality, and biocompatibility. This review provides up-to-date developments of NMOFs in biomedical applications with emphasis on size control, synthetic approaches, and surfaces functionalization as well as stability, degradation, and toxicity. The outlooks and several crucial issues of this area are also discussed, with the expectation that it may help arouse widespread attention on exploring NMOFs in potential clinical applications.

Assessment of Genetic Divergence by Using Multivariate Analysis for Physico Chemical Characters of Mango Table and Juicy Cultivars Grown in Telangana Region

Background: Mango (Mangifera indica L.) is well known for its diversity in Indian subcontinent and 1000 well known varieties are present all over the India among them 40 to 50 are having commercial importance. The present experiment was carried out at College of Horticulture, Rajendranagar during the year 2018-19 and 2019-20 to assess the genetic diversity in fifty mango cultivars using multivariate analysis over 25 physico-chemical characters. Methods: To assess the genetic diversity using D2 analysis and principal component analysis over 50 mango cultivars during 2 consecutive years. Result: In the present investigation, the first seven principal components with eigen values more than one contributed 78.50 % of cumulative variance among fifty genotypes. Fifty genotypes were grouped into eight clusters among them cluster I was the largest comprising of twenty-six genotypes. Average inter cluster distance ranged from 218.93 between cluster V and VII to 1475.21 between cluster IV to VIII. Intra cluster distance ranged from 0.00 in cluster V, VI, VII and VIII to 280.69 in cluster III. The present results are most divergent for fruit weight, total phenols content, total flavonoid content, DA reading, fibre content, beta carotene, antioxidant activity, fruit length, fruit thickness. Selection of genotypes from clusters that are far genetically and had the maximum association of physico chemical characters to obtain superior segregants in the advanced generation to improve the quality of breeding in the future.

Diversity of Gyrinops versteegii from several agarwood plantation on Lombok Island (Indonesia) as raw material of Gyrinops tea

Abstract. Wangiyana IGAS, Supriadi, Nikmatullah A, Sunarpi, Triandini IGAAH. 2021. Diversity of Gyrinops versteegii from several agarwood plantation on Lombok Island (Indonesia) as raw material of Gyrinops tea. Biodiversitas 23: 178-186. The purpose of this research is to examine the diversity of Gyrinops versteegii as a raw material of agarwood Gyrinops tea based on morphology, phytochemical, and molecular characters. G. versteegii samples were taken from 5 agarwood plantation on Lombok Island: Lingsar, Rarung, Mataram, Kekait, and Pejaring. Variation of G. versteegii stem, leaves, and fruit was the morphology character observed in this study. Qualitative phytochemical screening, quantitative tannin concentration, and the hedonic score of Gyrinops tea were the essential phytochemical character in this study. DNA fingerprinting and RAPD analysis were the molecular characters of this study. All of those characters were used in numeric-phenetics analysis to construct a dendrogram. MVSP program with UPGMA algorithm as clustering method and Simple Matching Coefficient for similarity analysis was used to construct dendrogram. The result has shown variation topology of dendrogram based on morphology, phytochemical, molecular, and combination character. However, all dendrograms had the same number of clusters and cluster members. G. versteegii kekait and G. versteegii Pejaring were grouped to cluster 1 while G. versteegii Rarung and G. versteegii Mataram were grouped to cluster 2. G. versteegii Lingsar was grouped later on the node after cluster 1 or 2. It could be concluded that G. versteegii from Lombok Island Plantation could be divided into three different cluster groups based on the variation of morphology, chemical, and molecular characters.

ALPHA-MANGOSTIN QUALITY AND QUANTITY ANALYSIS IN NAKHON SI THAMMARAT MANGOSTEEN PERICARP USING THIN-LAYER CHROMATOGRAPHY

TLC (thin-layer chromatography) is a standard technique for simultaneously screening and monitoring chemical character in a large number of samples. The goal of this study was to explore if alpha-mangostin (a common secondary metabolite) could be detected in mangosteen pericarp phytochemical fingerprints and how much of it could be represented using a standard calibration curve. The antioxidant activity has been touted as a primary active ingredient in many commercial goods, including cosmetics and food supplements. To test for the antioxidant reaction to the DPPH onto the TLC plate, mangosteen pericarps were obtained from 12 orchards that were grown without pesticides in Cha-Uat (CU), Lan Saka (LS), and Phrom Khiri (PK) districts of Nakhon Si Thammarat. The samples were dried and powdered before being extracted with methanol using the reflux technique. After that, the TLC was utilized to determine the phytochemical fingerprint. The quality of phytochemicals from the LS orchards was found to differ from CU and PK samples, with different bands of compounds at RF 0.2, 0.25, and 0.57. The average amount of alpha-mangostin in the 12 samples was not statistically different, according to a one-way analysis of variance with a p-value of 0.05. The average range of interest (ROI) intensity area of the antioxidant was investigated using a one-way analysis of variance with a p-value of 0.05 and repeated comparisons across the sample groups by Tukeys multiple comparison test. The average antioxidant reaction between the CU and PS group and the CU and PK group was significantly different.