Color Composition Research Articles

Colour, nutritional composition and antioxidant properties of dehydrated carrot (Daucus carota var. sativus) using solar drying techniques and pretreatments

Carrot is a seasonal perishable tuberous root vegetable which presents a preservation challenge owing to its elevated moisture content. Recently, carrot processing has received more attention because of its many health-promoting qualities and the reduction of postharvest losses in a cost-effective safe way. This study was designed to sort out the effective solar drying technique including pre-treatment that would retain the color and quality characteristics of dehydrated carrot. Carrot slices were subjected to dry using open sun drying (D1), solar drying long chimney (D2), solar drying short chimney (D3) and box solar drying (D4) techniques with the pretreatments of ascorbic acid 1 % (C3), citric acid 5 % (C4), potassium metabisulfite 1 % (C5) and potassium sodium tartrate 0.3 % (C6) before drying. Drying characteristics, nutritional attributes, phytochemicals and antioxidant of the dehydrated carrot samples were compared with the fresh sample and untreated (control) sample. Results showed that D4 was a good drying method to preserve nutritional quality with good appearance. Among the pretreatments, C5 and C4 resulted improved nutritional quality retention, enhanced visual acceptability and enriched antioxidant activities. PCA (Principal Component Analysis) and correlation matrix revealed that D4 with C5 retained the maximum amount of vitamin, minerals, total phenolic content, antioxidant and admirable dehydrated carrot color by inactivating enzymatic reaction. Therefore, box solar drying with potassium metabisulfite pretreatment would be very promising for functional carrot drying retaining acceptable color and nutrition composition.

Detailed Active Fault Map of the Spin Ghar Fault System and Related Seismicity in Eastern Afghanistan

The Spin Ghar fault system is one of the major active structures in northeastern Afghanistan, stretching ~130 km east-west along the Spin Ghar Mountains in the Jalalabad Basin. The fault system includes a group of strike-slip and oblique-slip thrust fault strands only 25 km from Jalalabad City. However, there is no existing detailed map of the fault traces, which is essential for mitigating seismic hazard from future seismicity. We therefore studied the fault-related geomorphology based on the interpretation of satellite images and shaded-relief topography. To identify exposed lithologies within the area we used true colour and false colour composite (FCC), band rationing and principal component analysis (PCA) on multispectral imagery. The Spin Ghar fault system is marked by both continuous and discontinuous linear and arcuate fault scarps developed in piedmont alluvium and along the Spin Ghar Mountain front. We also recognised scarps cutting bedrock terrain. Several deformed surfaces of Neogene-Quaternary age are observed along the fault strands in the Jalalabad Basin. The basin is also traversed by a series of east-west arcuate folds that suggest the area is undergoing south-north compression. The Quaternary faulting and seismicity demonstrate the kinematics of faulting in eastern Afghanistan. Our observations suggest that the east-west–trending right-lateral strike-slip and oblique-slip thrust faults are active and are important components of the seismic hazard in the eastern Afghanistan.

Research on the Application of Artistic Elements in Plastic Packaging Design Based on the Vision of Multivariate Statistical Analysis Inheritance

Abstract Characteristics with humanization and cultural heritage have become a new trend in plastic packaging design, and the integration of traditional art elements can effectively help complete the design. In this paper, the image of traditional culture and art is segmented and processed, and the description of regional significant values is realized through the multivariate statistics of regional features, and the constituent elements of art images are analyzed from different features. After extracting elements statistically, the traditional style migration of art elements is completed using a VGG network. To address the issue of slow optimization calculations during the iterative process, an offline model is used to achieve fast migration. In practice, the dynamic set ArtEleData is constructed based on the art and culture images of some ethnic minorities, and the evolution of the main elements such as clothing, food, shelter, and passages is studied, and the effect of the plastic packaging design using the above elements as the migrating body is measured. The color composition of the migrated art elements is the same as that of the plastic packaging design generated in this paper, with a small difference in the color ratio, and the average difference of different colors is 0.541. Among them, “12G” has the highest similarity in color moment characteristics, with a color moment of 0.00569, which proves the effectiveness of the migrated design of the art element packaging. This proves the effectiveness of the packaging migration design for artistic elements.

Peningkatan Pengetahuan dan Keterampilan Mengaplikasikan Mosaik Keramik pada Furnitur Berbahan Kayu Bekas

Ceramic mosaic is the art of arranging or combining ceramic pieces of certain colors and sizes to form an aesthetic pattern. Based on the evaluation results on the previous Community Service (PkM) implementation, it was found that the knowledge of the participants about mosaics, especially in terms of composition of shapes and colors, had not been fully mastered. Referring to this, this PkM activity aims to improve the knowledge and skills of participants in the Asem Baris area of gang V, RT 05, RW 05, in applying mosaics to furniture in the form of tables made of used wood. The method used in the preparation stage was to conduct experiments to obtain ceramics as the main raw material for mosaics, and to design a table with a disassembly system. At the stage of implementing PkM, the parsipatory and mentoring methods are carried out during the product development process. The results of this activity showed an increase in the participants' understanding and skills in applying the composition of shapes and colors in mosaics. This can be seen in the results of PkM in the form of mosaics with interesting abstract and regular patterns even though they only use a combination of two colors

The potential of DBD plasma pretreatment for the isolation of micro- and nano-cellulose fibers from the walnut shells

This study investigated the use of dielectric barrier discharge (DBD) plasma as a pretreatment to extract micro and nano-cellulose fibers from walnut shells (WS). The powdered WS was subjected to plasma at 18 and 20 kV before undergoing sodium hydroxide alkaline, sodium chlorite bleaching, or both alkaline and bleaching treatments. A control sample was also prepared without plasma treatment. The extracted cellulose was then analyzed for extraction efficiency, chemical composition, color, crystallinity index, FTIR, thermal properties, microstructure, and surface composition. The results showed that the plasma pretreatment reduced the cellulose extraction efficiency from ∼26 % to ∼22 % which was accompanied by a decrease in the C-C/C-H and C-OH/C-O-C bonds. The 20 kV plasma pretreatment prior to both alkaline and bleaching treatments resulted in the conversion of microfibrils into nanofibrils, with an average diameter of 80 ± 10 nm. These changes in the fiber structure were likely caused by the disruption of hydrogen-bonding interactions in the plasma-treated samples, leading also to a reduction in crystallinity index. The plasma-treated sample exhibited a different weight loss pattern below 100 °C compared with the control, originating from changes in water absorption. Overall, the study demonstrated that plasma pretreatment can successfully produce micro and nano-cellulose fibers from WS.

Color composition and its uses in the space of ontemporary Iraqi theatrical performance

Color composition and its uses in the space of ontemporary Iraqi theatrical performance

Effect of blanching, storage and drying conditions on the macro-composition, color and safety of mealworm Tenebrio molitor larvae

For food applications, the processing conditions applied to edible insects should present low energy requirements and environmental impact, while also assuring high quality and safety. The main goal of this study was to assess how different blanching, storage and drying conditions influence the quality and safety of Tenebrio molitor larvae. The different operations included blanching treatments (water-immersion or steaming), post-blanching storage (freezing or refrigeration) and drying methods (oven, microwave or freeze dryer). To monitor the impact on the quality of T. molitor dry matter content, water activity (aw), color and macro-nutrient composition were evaluated, while microbiological analyses were performed to assess the impacts on quality and safety. Blanching, particularly immersion-blanching, improved the lightness of the larvae, both before and after drying. Both blanching treatments reduced the Total Viable Count (TVC) and Enterobacteriaceae loads. Regarding the drying methods, freeze drying led to the best color conservation, while drying with an oven led to the lowest moisture content and aw. The application of drying methods further contributed to the reduction of TVC and Enterobacteriaceae, assuring low loads even after 3 months of storage, with the freeze dryer resulting in the lowest reductions, including an increase in yeast and mold count.

Color origin and its sedimentary and paleoenvironmental significance of the Permian-Triassic strata in the Ordos Basin, China

The Permian-Triassic strata in the Ordos Basin deposit a colorful set of strata. Although there have been many studies on oil and gas resources here, little attention has been paid to the genesis mechanism of its color. To analyze the color origin of the Permian-Triassic claystones and to clarify the dialectical relationship between rock color and sedimentary environment, petrological and geochemical methods such as polarization microscope, scan electron microscope, X-ray diffractometer, and inductively coupled plasma-mass spectrometer are used. The results indicate that the minerals with different colors, composition, and content serve as colorants in sedimentary rocks, with the predominant dyeing component in dark claystones being the organic matter, whereas red beds primarily acquire their color from hematite and other ferric minerals. In addition, different rock colors correspond to distinct chemical composition variations. The black-gray rocks of the Yanchang and Shihezi Formations have high total organic carbon content, Fe2+/Fe3+, V/Cr, and low CaO/(MgO × Al2O3) and Sr/Cu, whereas the red-brown rocks of the Liujiagou and Heshanggou Formations exhibit the opposite. Therefore, different colors of the rocks stem from their different mineral and chemical compositions, which in turn influenced by the changes in the paleoclimate, paleoenvironment, and tectonic movements. Comprehensive analysis of color, mineral, and chemical composition reveals the evolution process of paleoclimate and paleoenvironment in the Ordos Basin from the late Permian to Triassic, beginning with a warm humid climate characterized by a weak oxidation environment in the Shihezi and Shiqianfeng Formations, transitioning to a hot arid climate in the Liujiagou and Heshanggou Formations, and returning to a warm humid climate with a weak oxidation environment in the Zhifang and Yanchang Formations. This evolution history aligns with the global tectonic and climate evolution. Overall, systematic analysis of sedimentary rock color can provide an important basis for the study of the paleoclimate and paleoenvironment.

Study on the ancient glass composition based on the multivariate statistical analysis method

The Silk Road was a channel of cultural exchange between China and the West, and glass was the precious material evidence of early trade. The study of the relationship between the weathering of ancient glass products and glass types and chemical composition contributes to the preservation of ancient cultural relics and promotes the further study of the history of the Silk Road. Based on this, this paper analyzed the surface weathering of cultural relics, and the type, ornamentation, color, and chemical composition of cultural relics, and it was finally found that there is a significant correlation between glass type and surface weathering. Then, discriminant analysis and systematic cluster analysis were applied to establish the classification function for the glass type variables and the chemical composition variables. Finally, gray correlation analysis was used to explore the correlation between each chemical component, and found that SiO2-Al2O3 was the most associated with each other in lead-barium glass, and K2O-CaO was the highest in high potassium glass.

Fuzzy-logic technique for gold mineralization prospecting using Landsat 9 OLI processing and fieldwork data in the Bibemi goldfield, north Cameroon

Identifying potential hydrothermal alteration areas is indeed an essential method for mineral exploration. In this research, we developed an algorithm for the delineation of alteration mineral deposits related to gold mineralization in the Bibemi region using set of criteria derived from Landsat 9 OLI data using false colour composites, band ratios, principal component analysis, spectral angle mapper, and fuzzy-logic overlay methods. The methods used showed iron-oxides, ferrous, and hydroxyl-bearing and carbonate mineral properties related to gold mineralization. The fuzzy overlay map identified regions depending on their mineralization prospective, serving as foundation for prospective mineral deposit evaluation investigation, which was produced by the merging of band ratios and PC's alteration markers labelled very good, and excellent and encompasses 0.8–0.9, 0.9–1.0 respectively. The identified regions fit gold mineralization zones based on their potential as proven by prior and field research. In addition, lineaments analysis showed the presence of three main structural direction impacting the Bibemi region (N–S, NNE-SSW, and ESE-WNW to SSE-NNW), when merged with identified rock formations permits the possible deposition of mineral deposits. The innovative aspect of this research is the integration and processing of Landsat 9 OLI and fieldwork data, which allows for the identification of potentially mineralized rock formations and defining exploration targets.

Characteristics and removal efficiency of microplastics at secondary wastewater treatment plant in Lithuania.

Wastewater treatment plants (WWTPs) are the most significant barrier between anthropogenic microplastics and environmental ecosystems. The distribution and characteristics of microplastics in WWTPs remain uncertain and incompletely understood, particularly in northeastern Europe (Baltic States), where there is a lack of data on microplastic pollution and distribution. This study presents the removal efficiency and variation in characteristics of microplastics in different stages of the secondary WWTP during a 3-month sampling campaign in Lithuania. The abundance, size, shape, color, and chemical composition of microplastics in the wastewater at different treatment stages were thoroughly examined, in a size range from 20 to 1000 μm. On average, 2962 ± 25 particles/L of microplastic enter the studied WWTP. The obtained microplastic removal efficiency was 55.4% ± 3.9%, highlighting the necessity to enhance wastewater treatment strategies focusing on microplastic removal. Fragment-type microplastics smaller than 100 μm were removed from wastewater samples with the highest removal efficiency. Furthermore, our study includes recommendations to improve microplastic removal efficiency and contribute to mitigating microplastic pollution. PRACTITIONER POINTS: A large number of MPs in the size range of 20-1000 μm enter Lithuanian WWTP. Small-sized MPs within a range of 20-50 μm and 50-100 μm were removed with the highest efficiency of 54.07 ± 1.68% and 56.4 ± 2.43%, respectively. The shape and size of MPs have a major impact on the efficiency of their removal. Future research should prioritize the development of economical and energy-efficient systems, specifically designed for the removal of MPs in WWTPs.

Physicochemical and compositional properties of blended beef patties formulated with pea and faba bean protein isolates and texturized pea protein

AbstractThis study investigated the physicochemical characteristics of blended beef patties formulated with pea and faba bean protein isolates (PPI and FPI, respectively) and hydrated texturized pea protein (HTPP, 1 part TPP: 2 parts water). Minced beef was combined with nothing (control) or 4.25% PPI/FPI and 0%, 8.5%, 21.3%, or 42.5% HTPP. The pH, Warner‐Bratzler shear force (WBSF), texture profile analysis (TPA), compression juiciness, cooking loss, color, and chemical composition were determined. In general, plant proteins increased pH values and ash content, and decreased cooking loss and fat content of blended meat patties. The addition of PPI/FPI did not lead to substantial changes in texture or color but resulted in lower cooking loss. HTPP resulted in decreased WBSF, hardness, and other TPA attributes. The combination of PPI/FPI as binders/gelling agents and HTPP as a meat extender resulted in a softer texture than conventional beef patties. This study provides an indication of PPI, FPI, and HTPP functionality in blended meat product formulation.

Characteristics and molecular properties of crude hemeproteins extracted from Asian seabass gills using an ultrasound-assisted process.

The development of a safe and effective iron supplement is important for the treatment of iron-deficient anemia. Therefore, the crude hemeprotein extract (CHPE) from Asian seabass gills wasextracted without (CON) and with ultrasound (US)-assisted process, followed by freeze-drying. The resulting freeze-dried crude hemeprotein extract (FDCHPE) powders were determined for trace mineral content, color, secondary structure, protein pattern, size distribution, volatile compounds, and amino acid composition. The extraction yields of CON-FDCHPE and US-FDCHPE were 6.76% and 13.65%, respectively. Highest heme iron (0.485 mg/mL) and non-heme iron (0.023 mg/mL) contents were found when US at 70% amplitude for 10 min (US 70/10) was applied. Both CON-FDCHPE and US-FDCHPE had no heavy metals, but higher iron content (432.8 mg/kg) was found in US-FDCHPE (P < 0.05). Typical red color was observed in CON-FDCHPE and US-FDCHPE with a*-values of 9.72 and 10.60, respectively. Ultrasonication affected protein structure, in which β-sheet upsurged, whereas random coil, α-helix, and β-turn were reduced. Protein pattern confirmed that both samples had myoglobin as the major protein. US-FDCHPE also showed a higher abundance of volatile compounds, especially propanal, hexanal, heptanal, and so forth, compared to CON-FDCHPE. Amino acid composition of US-FDCHPE was comparable to Food and Agriculture Organization of the United Nations (FAO) values. Overall, FDCHPE extracted using ultrasonication could be safe and effective for fortification in food products as an iron supplement to alleviate iron-deficient anemia. Additionally, gills as leftovers could be better exploited rather than being disposed. © 2023 Society of Chemical Industry.

Особенности цветовой композиции китайской живописи и их учет в контексте подготовки студентов-художников

Painting of the Celestial Empire is a reflection of the wisdom of its people in art and characterizes the Chinese civilization as one of the most developed in the world of classical culture. The use of color in Chinese painting has been appreciated by artists for thousands of years. If artists use the visual and aesthetic psychological per-spective of color in their paintings, they can better reflect and express their true feelings, which greatly enhanc-es the artistic meaning and significance of their works, and meets the aesthetic requirements and sensory needs of modern people. Color composition is a way for artists to convey their ideas, emotions, moral and oth-er psychological feelings through color patterns and color combinations. At the same time, the use of color is subjective and emotional. In Chinese painting, artists tend to always focus on the atmosphere created by the tone of the painting, without the influence of the inherent color of the object itself. This paper will use the con-trast method to study color composition, allowing students to make full and reasonable use of the contrast be-tween the composition and color agreed upon so that the painting can enhance and emphasize the need for color effect. This paper attempts to study the basic.

Mixed colors by combustion of mixed homogeneous pyrotechnics and heterogeneous charges

AbstractThe combustion of mixed homogeneous pyrotechnic compositions and heterogeneous charges is studied experimentally with the aim of producing a selectable wavelength signal flare. The heterogeneous charge was perceived as a mixed color by a distant observer. A model for color chromaticity coordinates of homogeneous mixtures was derived that includes the mass, mass‐based burn rate and luminous intensity ratios of the constituting color compositions. This model can predict the expected dominant wavelength of a mixed composition. It can also handle the spacing of chromaticity coordinates of mixed compositions on a straight line in the CIE diagram between chromaticity coordinates of constituting colors. With two series of color composition mixtures, it was demonstrated that the chromaticity coordinates of the mixtures could be at, or slightly deviate, from the straight line connecting the chromaticity coordinates of the constituting compositions. It indicates there is little to no influence of flame temperature and mutual pyrotechnic reactions.

Effect of storing conditions (lighting, temperature and bottle color) on rosé wine attributes

The majority of rosé wines are bottled in clear bottles as color is an important factor in consumer preference. Post-bottling wine can be exposed to UV–visible light and temperature fluctuations resulting in quality degradation. This study investigated the impact of bottle color (flint and antique green), light exposure (darkness, LED and fluorescent bulb), and temperature (12 °C and 22 °C) on rosé wine quality using a full factorial design with three different wines (Grenache, Pinot noir and Zinfandel). The impact on chemical composition, color, phenolics and aromatics was determined. Projective mapping was carried out for sensorial analysis. Changes in the aromatics, color and phenolic composition were detectable after three months and more noticeable after six months of storage. Overall, all variables studied impacted rosé wine characteristics significantly. However, higher temperature in combination with clear glass bottles under fluorescent light were the most detrimental conditions.

Geospatial Insights into Ophiolitic Complexes in the Cimmerian Realm of the Afghan Central Block (Middle Afghanistan)

Ophiolites are remnants of oceanic crust that have been thrust onto continental crust due to tectonic processes. They are composed of mostly mafic and ultramafic rocks, which are genetically associated with gold, silver, platinum group element (PGE), chrome, manganese, titanium, cobalt, copper, and nickel deposits. The main objective of this research was to identify the spatial distribution of Mesozoic ophiolitic complexes within the Central Afghan Block in Middle Afghanistan using optical remote sensing data and spectral analyses. Distinct algorithms, such as false color composite (FCC), proposed band ratios (PBR), principal component analysis (PCA), and spectral angle mapper (SAM), were used to map the targeted ophiolitic complexes. New band ratios were proposed in this study based on the spectral properties of mafic-ultramafic minerals and rocks, which showed high efficiency. Based on the results, four different ophiolitic complexes were delineated within this study area. These complexes are consistent with previous studies. The accuracy assessment of this study showed an overall accuracy of 72.2%. The findings of this study can significantly contribute to further studies on the emplacement mechanism and paleo-Tethys history of Middle Afghanistan. Also, the spatial distribution of the ophiolitic complexes identified in this study can be used to constrain models of the tectonic evolution of the Central Afghan Block. Additionally, the identification of new band ratios for mapping ophiolitic complexes can be used in future studies of other ophiolite-bearing regions.

Contribution of Landsat 8 OLI imagery to mapping of lithological series and lineaments: implications for Pb-Zn mineralization exploration in the Boudahar Massif, Eastern High Atlas, Morocco

The Boudahar massif is located in the southern part of the eastern belt of the Moroccan High Atlas and it corresponds to a reef mass of about ten kilometers in length. Jbel Boudahar is a district of lead-zinc-barite mineralization, known by a strong artisanal exploitation of its ores. This district is characterized by its topography with a contrast of altitude and an arid environment, which makes the information acquired more valuable. The processing of Landsat 8 OLI data allowed us to extract a lithological and structural map, aiming to make correlations to understand the distribution of lead-zinc mineralization. To this end, several tests were carried out, including the composition of color, principal component analysis and band ratio transformation. The location of the main deposits at Jbel Boudhar coincides well with the lineament derived from band 1 of principal component analysis and with the dolomitic pliensbachian formations mapped by MNF and BR from Landsat Oli8. A remote sensing geological prospecting model has been established for the Jbel Boudhar lead-zinc deposits, providing a basis for future prospecting of new deposits in a similar context.

Impact of Gamma irradiation pretreatment on the characteristics of native and defatted date palm seed flour and oil

Numerous beneficial compounds in date seeds are less accessible due to natural barriers. These compounds can be especially beneficial to human health when linked to their excellent antioxidant capacity. The aim of this study is to elucidate the effect of gamma irradiation on releasing these compounds in order to enhance the chemical composition of native and defatted date seed powder. To achieve this, date seed flour was exposed to two doses of gamma irradiation (1 and 5 kGy), and then the irradiated samples were assessed for their chemical properties. Additionally, after irradiation pretreatment, oil extraction was carried out using different solvents, and the native and defatted date seed flours were analyzed. The results showed that gamma irradiation had a significant effect on the color and chemical composition of the date seed powder. The solubility of amino acids in solvents was affected by gamma irradiation, resulting in defatted seed flours that were richer in some amino acids. Furthermore, irradiated-defatted seed powder exhibited higher levels of neutral sugars and esterified phenols, which contribute to a better antioxidant capacity. FTIR spectra confirmed that, after irradiation, there was a breakdown of the cell wall structure, allowing for a higher oil yield with more effective antimicrobial activities. In conclusion, irradiation pretreatment allowed the native and defatted date seed flour to gain additional benefits by making chemical compounds more extractable.

Integrated Transcriptomic and Metabolomic Analysis Reveal the Underlying Mechanism of Anthocyanin Biosynthesis in Toona sinensis Leaves.

Toona sinensis, commonly known as Chinese Toon, is a plant species that possesses noteworthy value as a tree and vegetable. Its tender young buds exhibit a diverse range of colors, primarily determined by the presence and composition of anthocyanins and flavonoids. However, the underlying mechanisms of anthocyanin biosynthesis in Toona sinensis have been rarely reported. To explore the related genes and metabolites associated with composition of leaf color, we conducted an analysis of the transcriptome and metabolome of five distinct Toona clones. The results showed that differentially expressed genes and metabolites involved in anthocyanin biosynthesis pathway were mainly enriched. A conjoint analysis of transcripts and metabolites was carried out in JFC (red) and LFC (green), resulting in the identification of 510 genes and 23 anthocyanin-related metabolites with a positive correlation coefficient greater than 0.8. Among these genes and metabolites, 23 transcription factors and phytohormone-related genes showed strong coefficients with 13 anthocyanin derivates, which mainly belonged to the stable types of delphinidin, cyanidin, peonidin. The core derivative was found to be Cyanidin-3-O-arabinoside, which was present in JFC at 520.93 times the abundance compared to LFC. Additionally, the regulatory network and relative expression levels of genes revealed that the structural genes DFR, ANS, and UFGT1 might be directly or indirectly regulated by the transcription factors SOC1 (MADS-box), CPC (MYB), and bHLH162 (bHLH) to control the accumulation of anthocyanin. The expression of these genes was significantly higher in red clones compared to green clones. Furthermore, RNA-seq results accurately reflected the true expression levels of genes. Overall, this study provides a foundation for future research aimed at manipulating anthocyanin biosynthesis to improve plant coloration or to derive human health benefits.