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Journal articles on the topic 'Pigment'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Bacarji, Edgar, Fabíolla Xavier Rocha Ferreira, Larissa Alves de Souza, and Henrique Santiago de Camargo. "BLOCOS MODULARES NÃO CONVENCIONAIS COM SUBPRODUTOS DE BRITAGEM: INFLUÊNCIA DE PIGMENTOS INORGÂNICOS." REEC - Revista Eletrônica de Engenharia Civil 19, no. 1 (2023): 24–35. http://dx.doi.org/10.5216/reec.v19i1.74966.

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RESUMO: Esta pesquisa teve como objetivo avaliar o efeito da adição dos pigmentos inorgânicos nas cores vermelha, amarela e verde em blocos destinados à construção modular. Os blocos foram fabricados com o traço 1:5 (cimento: agregados totais), em massa, utilizando como agregados areia artificial, fíler e micro fíler; todos, subprodutos de britagem. Foram incorporados 0% (traço de referência), 5%, 10% e 15% dos pigmentos em relação à massa do cimento e em substituição parcial ao fíler. Para a confecção dos blocos, utilizou-se uma prensa hidráulica com capacidade de prensagem de 8,0 tf. Foram d

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Leow, M. E. L., R. K. K. Ow, S. Valiyaveettil, M. H. Lee, and R. W. H. Pho. "Colourfast pigments in silicone hand and maxillofacial prostheses." Prosthetics and Orthotics International 26, no. 2 (2002): 124–34. http://dx.doi.org/10.1080/03093640208726635.

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This study addresses the clinical problem of long-term discolouration of silicone hand and maxillofacial prostheses. Seven (7) pigment hues, considered essential for achieving a suitable tissue colour-matched prosthesis, were compared for their colourfast property, across three selected proprietary formulations. In all, a series of 21 pigments, were tested for colourfastness. The pigments, presenting as suspensions (PS), pastes (PP) and dry pigments (PD), were exposed, over nine months, to ultraviolet light, elevated temperatures and varying concentrations of salinity. Colour change of the pig

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Lin, Lan, and Jianping Xu. "Production of Fungal Pigments: Molecular Processes and Their Applications." Journal of Fungi 9, no. 1 (2022): 44. http://dx.doi.org/10.3390/jof9010044.

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Due to the negative environmental and health effects of synthetic colorants, pigments of natural origins of plants and microbes constitute an abundant source for the food, cosmetic, textile, and pharmaceutical industries. The demands for natural alternatives, which involve natural colorants and natural biological processes for their production, have been growing rapidly in recent decades. Fungi contain some of the most prolific pigment producers, and they excel in bioavailability, yield, cost-effectiveness, and ease of large-scale cell culture as well as downstream processing. In contrast, pig

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Ramesh, Chatragadda, V. R. Prasastha, Mekala Venkatachalam, and Laurent Dufossé. "Natural Substrates and Culture Conditions to Produce Pigments from Potential Microbes in Submerged Fermentation." Fermentation 8, no. 9 (2022): 460. http://dx.doi.org/10.3390/fermentation8090460.

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Pigments from bacteria, fungi, yeast, cyanobacteria, and microalgae have been gaining more demand in the food, leather, and textile industries due to their natural origin and effective bioactive functions. Mass production of microbial pigments using inexpensive and ecofriendly agro-industrial residues is gaining more demand in the current research due to their low cost, natural origin, waste utilization, and high pigment stimulating characteristics. A wide range of natural substrates has been employed in submerged fermentation as carbon and nitrogen sources to enhance the pigment production fr

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Adrian, Melinda Margareta, Darus S. J. Paransa, James J. H. Paulus, Nickson J. Kawung, Robert A. Bara, and Rene Ch Kepel. "Analysis Of Types Of Carotenoid Pigments In Crab Sesarmops sp From Manado By Coast." Jurnal Ilmiah PLATAX 9, no. 2 (2021): 204. http://dx.doi.org/10.35800/jip.9.2.2021.35127.

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Carotenoid pigments are a group of pigments that are yellow, orange, and red-orange in color. Pigments are natural dyes found in plants and animals, extracts of carotenoid pigments can be separated by chromatographic methods where the common chromatographic methods in determining the type of pigment are Column Chromatography (CC) and Thin Layer Chromatography (TLC). The purpose of this study was to determine the types of pigments contained in the carapace extract of the male crab Sesarmops sp. The Sesarmops sp crab has a brown dorsal carapace with blackish-brown leg spots known as mangrove cra

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Pesang, Martice Desi, James Ngginak, Alfred Gasper Onisimus Kase, and Coni Lisandra Balle Bisilissin. "Komposisi Pigmen pada Ulva sp., Padina australis dan Hypnea sp. dari Pantai Tablolong Provinsi Nusa Tenggara Timur." Jurnal Kelautan Tropis 23, no. 2 (2020): 225–33. http://dx.doi.org/10.14710/jkt.v23i2.5912.

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Indonesia has marine biological natural resources consisting of fish, seaweed, crabs and shrimp which are very potential. The purpose of this study was to determine the composition of pigments in Ulva sp (Chlorophyta), Padina australis (Paeophyta) and Hypnea sp (Rhodophyta) obtained from Tablolong waters. The method used in this research is descriptive qualitative and quantitative. Proof of pigment in samples using thin layer chromatography (TLC). The results of pigment analysis of Ulva sp obtained twelve color spots with identified pigment types consisting of chlorophyll a, chlorophyll b, xan

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Hewagama, H. L., G. M. T. K. Somarathna, L. Herath, and S. E. Peiris. "Microbial Pigment Isolation, Culturing, and Extraction to Use as Textile Dyes." SLIIT Journal of Humanities and Sciences 4, no. 2 (2024): 50–58. http://dx.doi.org/10.4038/sjhs.v4i2.59.

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The textile industry is one of the largest worldwide polluters of clean water due to the heavy use of synthetic dyes. These chemicals negatively affect the environment, especially aquatic life due to their toxic and mutagenic properties. Synthetic dyes cause harm to human health such as skin allergies and respiratory sensitization. Several advantages such as ease of extraction, availability, high yields and no seasonal variation make microbial pigments the most ideal source of natural pigments. This study was done to isolate colour pigment producing bacteria and fungi from soil collected from

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Diasasthisa, Dias, Darus J. Paransa, Desy MH Mantiri, Antonius Rumengan, Veibe Warouw, and Meiske Salaki. "ISOLASI PIGMEN KAROTENOID DARI KEPITING Grapsus sp. (CAROTENOID PIGMENTS ISOLATION FROM CRABS Grapsus sp.)." JURNAL PESISIR DAN LAUT TROPIS 7, no. 2 (2019): 104. http://dx.doi.org/10.35800/jplt.7.2.2019.24216.

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Carotenoids are pigments with a range of red, orange and yellow colors. In carotenoid and chlorophyll plants are located in chloroplasts which undergo photosynthesis as well as photosynthetic bacteria and fungi. Carotenoid compounds have antioxidant activity, anticancer, as precursors of vitamin A and can enhance immunity. Crustaceans like crabs Grapsus sp. have carotenoid pigments, visible red, orange, and yellow are scattered in the carapace. Pigments found in crustaceans as well as crabs of Grapsus sp. generally sourced from food eaten by the crab. To determine the process of carotenoid pig

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Puspita, Dhanang, Yosephine Diana Tjahyono, Yunius Samalukang, Binerd Anthon Im Toy, and Norson Willem Totoda. "PRODUKSI ANTOSIANIN DARI DAUN MIANA (Plectranthus scutellarioides) SEBAGAI PEWARNA ALAMI." Pro Food 4, no. 1 (2018): 298–303. http://dx.doi.org/10.29303/profood.v4i1.78.

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Miana (Coleus scutellaroides) is an ornamental plant of single leaf a purple color. The purple color found from miana leaves is an indicator of the presence of anthocyanin pigments. Anthocyanin from miana leaves can be utilized as a natural pigment for various staining purposes especially in the food industry, anthocyanin harvesting on miana leaves can be done at any time and does not depend on the season due to its abundant availability in nature.The aims of this study were to isolate, identify, and microencapsulated anthocyanin pigments of miana leaves. The result, pigment extracted from mia

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Zeak, Werianty Liony, Darus Sa’adah J. Paransa, Antonius Rumengan, Kurniati Kemer, James J. H. Paulus, and Desy M. H. Mantiri. "Skrining Pigmen Karotenoid pada Kepiting Grapsus sp. dengan Menggunakan Pemisahan Kromatografi." JURNAL PESISIR DAN LAUT TROPIS 7, no. 1 (2019): 52. http://dx.doi.org/10.35800/jplt.7.1.2019.23457.

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Screening of Carotenoid Pigmen in Crabs of Grapsus sp. Using Chromatography Separation Grapsus sp. is one of the sea crustaceans that has a unique characteristic on its claws, which has a purplish and blackish green color on the carapace organ, this indicates that the crap carapace of Grapsus sp. has pigment content. From this pigment content that is then isolated to determine the type of pigment by using Thin Layer Chromatography and Column Chromatography. The carapace extract of Grapsus sp. crab which was isolated then analyzed, the result identified that the crab carapace of Grapsus sp. had

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Sibarani, Sriyati Enjelina, Darus Saadah Johanis Paransa, Kurniati Kemer, Desy M. H. Mantiri, Natalie D. C. Rumampuk, and Sipriana Siana Tumembow. "PIGMEN KAROTENOID PADA KEPITING Ozius sp." JURNAL PESISIR DAN LAUT TROPIS 8, no. 1 (2020): 47. http://dx.doi.org/10.35800/jplt.8.1.2020.27457.

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Carotenoid pigments are natural dyes that have an influence on organism. For the human body, carotenoids function as antioxidants, anticancer, anti-bacteria and help maintain eye health. Carotenoid pigments are found in groups of bacteria, fungi, molds, algae and green plants and one of them in crustaceans is the crab Ozius sp. To determine the metabolic process of carotenoid pigments, each crab organ of Ozius sp. isolated using thin layer chromatography separation method to determine the type of pigment contained therein. The type of pigment identified in the crab Ozius sp. females with the T

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Sarmiento-Tovar, Aixa A., Sara J. Prada-Rubio, Juliana Gonzalez-Ronseria, Ericsson Coy-Barrera, and Luis Diaz. "Exploration of the Bioactivity of Pigmented Extracts from Streptomyces Strains Isolated Along the Banks of the Guaviare and Arauca Rivers (Colombia)." Fermentation 10, no. 10 (2024): 529. http://dx.doi.org/10.3390/fermentation10100529.

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Pigments are chemical compounds that impart color through mechanisms such as absorption, reflection, and refraction. While traditional natural pigments are derived from plant and insect tissues, microorganisms, including bacteria, yeasts, algae, and filamentous fungi, have emerged as promising sources for pigment production. In this study, we focused on pigment production by 20 Streptomyces isolates from our in-house actinobacteria strain collection, sourced from the Guaviare and Arauca Rivers in Colombia. The isolates were identified via 16S rRNA gene sequencing, and the bioactivities—includi

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Dontsov, Alexander, and Mikhail Ostrovsky. "Retinal Pigment Epithelium Pigment Granules: Norms, Age Relations and Pathology." International Journal of Molecular Sciences 25, no. 7 (2024): 3609. http://dx.doi.org/10.3390/ijms25073609.

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The retinal pigment epithelium (RPE), which ensures the normal functioning of the neural retina, is a pigmented single-cell layer that separates the retina from the Bruch’s membrane and the choroid. There are three main types of pigment granules in the RPE cells of the human eye: lipofuscin granules (LG) containing the fluorescent “age pigment” lipofuscin, melanoprotein granules (melanosomes, melanolysosomes) containing the screening pigment melanin and complex melanolipofuscin granules (MLG) containing both types of pigments simultaneously—melanin and lipofuscin. This review examines the func

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Tjokro Atmodjo, Felix Adrian, Kestrilia Rega Prilianti, and Hendry Setiawan. "Implementasi Perbaikan Kualitas Citra Tanaman terhadap Perbedaan Kamera untuk Prediksi Pigmen Fotosintesis berbasis Machine Learning." Jurnal Buana Informatika 14, no. 01 (2023): 30–39. http://dx.doi.org/10.24002/jbi.v14i01.6997.

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Implementation of Plant Image Quality Improvement based on Machine Learning on Camera Variation to Predict Photosynthetic Pigments. Pigments are natural dyes found in plants and animals. In photosynthesis, there are 3 essential pigments: chlorophyll, cartenoid, and anthocyanin. Pigment analysis can be performed with High Performance Liquid Chromatography (HPLC) and a spectrophotometer. However, HPLC and spectrophotometers require high resources and time. Thus, the Fuzzy Piction Android application built using the FP3Net model is the best choice in pigment prediction since it is low on cost and

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Silaa, Anisa ET, Darus SJ Paransa, Anton P. Rumengan, Kurniati Kemer, Natalie DC Rumampuk, and Hengky Manoppo. "PEMISAHAN JENIS PIGMEN KAROTENOID DARI KEPITING Grapsus sp JANTAN MENGGUNAKAN METODE KROMATOGRAFI KOLOM." JURNAL PESISIR DAN LAUT TROPIS 7, no. 2 (2019): 121. http://dx.doi.org/10.35800/jplt.7.2.2019.24247.

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Grapsus sp crab has a greenish black body color and also known as stone crab. Crabs in the genus Grapsus sp have a swift movement, long legs, they do not have swimming legs and have small reddish purple or purple-orange color, claws on the body of this crab indicated the presence of pigments such as carotenoid pigments. Carotenoid pigments are one form of secondary metabolites which consist of carotene and xanthophyll groups. Carotenoid pigments are present in yellow, orange or orange red which are also found in crabs. Separation of carotenoid pigments can be done using the TLC method, High Pe

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Busolini, Fabricio Ivan, Graciela Beatriz Rodríguez, Verónica Palmira Filippa, and Fabian Heber Mohamed. "Pigmented Cells in the Pineal Gland of Female Viscacha (Lagostomus maximus maximus): A Histochemical and Ultrastructural Study." International Journal of Endocrinology 2017 (2017): 1–8. http://dx.doi.org/10.1155/2017/7492960.

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The presence of pigment has been demonstrated in different nervous structures such as those of retina, substantia nigra, and locus coeruleus. These pigments have also been described in the pineal gland of different mammal species. Histochemical and ultrastructural studies of the pineal gland of female viscacha (Lagostomus maximus maximus) were performed to analyze the presence of pigmented cells under natural conditions and to evaluate a probable relation between pigment content and glandular activity during pregnancy. The following techniques were applied: hematoxylin-eosin, phosphotungstic a

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Widyaningrum, D., N. F. Sadek, D. Cecilia, R. A. Oktafika, and F. Tedjakusuma. "The effect of temperature and encapsulation on the stability of microalgae pigments." IOP Conference Series: Earth and Environmental Science 1352, no. 1 (2024): 012090. http://dx.doi.org/10.1088/1755-1315/1352/1/012090.

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Abstract Microalgae pigments are gaining interest in food industry applications as food additives by providing color and health benefits such as antioxidant properties. The pigment’s sensitivity to heat, pH, oxygen, and other conditions may reduce or lose its function in food products. Due to the sensitivity and instability of microalgae pigment, strategies are needed to protect and retain pigment from reducing their functions. Thirty-two research papers related to the topic published during 2012-2022 were employed in the review. This review focuses on astaxanthin from Haematococcus pluvialis,

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Windah Yulianti, Yiyik, Moch Mahasri Amin Alamsjah, and Riesta P.H. "Pigmen Rumput Laut Merah (Acanthophora spicifera) sebagai Alternatif Pewarna Alami pada Produk Sosis Ikan Lele Dumbo (Clarias gariepinus) [ Seaweed Red Pigment(Acanthophora Spicifera) as Alternative in Producing Natural Dyes of Catfish (Clarias gariepinus) Sausage Produc ]." Jurnal Ilmiah Perikanan dan Kelautan 7, no. 1 (2019): 47. http://dx.doi.org/10.20473/jipk.v7i1.11232.

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Abstract Aquatic resources that have great potential to be developed is a pigment obtained from seaweed. According Winarno (1996), seaweeds are clasified into three classes, namely red algae (Rhodophyceae), brown algae (Phaeophyceae) and green algae (Chlorophyceae). There are three main types of pigment in the seaweed, namely: chlorophyll, carotenoids, and phycocyanin (Lila, 2004). Each type of pigment that provides different benefits to human life. Red seaweed spicifera types Acanthophora be extracted and taken the pigment has a branch color (thallus) are varied, due to the pigment compositio

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Narendrababu, B. N., and S. Shishupala. "Biological Activities of Pigments from Aspergillus nidulans." International Journal of Current Microbiology and Applied Sciences 12, no. 6 (2023): 62–75. http://dx.doi.org/10.20546/ijcmas.2023.1206.009.

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The biological activity shown by fungal pigments is of significance for broadening their applications. In the current research, both cellular and secretory pigments produced by Aspergillus nidulans were separated by thin-layer chromatography (TLC) and detected by UV-Visible spectroscopy. The fractions were examined for their biological functions in terms of antimicrobial and antioxidant activities. The findings revealed that the crude cellular pigments had absorption maxima at 458 nm and 521 nm, corresponding to orange and red pigments respectively. The crude secretory pigments showed absorpti

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Makino, C. L., and R. L. Dodd. "Multiple visual pigments in a photoreceptor of the salamander retina." Journal of General Physiology 108, no. 1 (1996): 27–34. http://dx.doi.org/10.1085/jgp.108.1.27.

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Although a given retina typically contains several visual pigments, each formed from a retinal chromophore bound to a specific opsin protein, single photoreceptor cells have been thought to express only one type of opsin. This design maximizes a cell's sensitivity to a particular wavelength band and facilitates wavelength discrimination in retinas that process color. We report electrophysiological evidence that the ultraviolet-sensitive cone of salamander violates this rule. This cell contains three different functional opsins. The three opsins could combine with the two different chromophores

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Goodwin, P. H., and C. R. Sopher. "Brown pigmentation of Xanthomonas campestris pv. phaseoli associated with homogentisic acid." Canadian Journal of Microbiology 40, no. 1 (1994): 28–34. http://dx.doi.org/10.1139/m94-005.

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The diffusible brown pigment produced by some strains of Xanthomonas campestris pv. phaseoli was found to be due to the secretion and subsequent oxidation of homogentisic acid (2, 5-dihydroxyphenylacetic acid) rather than tyrosinase activity as previously reported. Homogentisic acid is an intermediate in tyrosine catabolism for a number of bacteria. Brown-pigmented strains appeared to be disrupted in tyrosine catabolism and could not use tyrosine as a nutrient. Nonpigmented strains, however, could utilize tyrosine as a nutrient, and although they secreted homogentisic acid, the levels were app

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Patterson, G. I., L. J. Harris, V. Walbot, and V. L. Chandler. "Genetic analysis of B-Peru, a regulatory gene in maize." Genetics 127, no. 1 (1991): 205–20. http://dx.doi.org/10.1093/genetics/127.1.205.

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Abstract The B locus in maize is required for the accumulation of anthocyanin pigments. Numerous B alleles have been described: each determines a particular pattern of pigment synthesis with respect to the tissues that are pigmented and the time during development that pigment synthesis begins. We report here a genetic analysis of one B allele, B-Peru, which regulates synthesis of pigments in both kernel and plant tissues. We used stocks with active Mutator transposable elements to produce eight mutations in B-Peru. All eight alter pigment synthesis in all the kernel and plant tissues pigmente

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Kohl, Miroslav, Fouzy Alafid, Karolína Boštíková, et al. "Preparation and Testing of Anti-Corrosion Properties of New Pigments Containing Structural Units of Melamine and Magnesium Cations (Mg2+)." Coatings 13, no. 11 (2023): 1968. http://dx.doi.org/10.3390/coatings13111968.

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This paper deals with the properties and testing of newly prepared organic pigments based on melamine cyanurate containing magnesium or zinc cations depending on their composition and anticorrosive properties in model coatings. Organic pigments based on melamine cyanurate with Mg2+ in the form of a complex differing in the ratio of melamine and cyanurate units were prepared. Furthermore, a pigment based on melamine citrate with magnesium cation Mg2+, a pigment based on melamine citrate with magnesium cation, and a pigment based on melamine cyanurate with zinc cation were prepared. The properti

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Uysal, Mucteba. "The Use of Waste Maroon Marble Powder and Iron Oxide Pigment in the Production of Coloured Self-Compacting Concrete." Advances in Civil Engineering 2018 (2018): 1–10. http://dx.doi.org/10.1155/2018/8093576.

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This work covers some workability, mechanical, and durability properties of coloured self-compacting concrete (SCC) containing maroon marble powder and iron oxide pigment. Pigments with varying amounts were used to produce coloured SCC. For this purpose, ten different series were prepared of which two of the series were pigment free that one of them was the colour of white SCC including limestone powder and the other one was the colour of maroon SCC including maroon marble powder. The other series were containing pigments with varying amounts. The water to binder ratio remained constant for al

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Zhang, Yong, Xuening Fei, Lu Yu, Lingyun Cao, and Baolian Zhang. "Preparation and characterisation of silica supported organic hybrid pigments." Pigment & Resin Technology 43, no. 6 (2014): 325–31. http://dx.doi.org/10.1108/prt-10-2013-0087.

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Purpose The purpose of the work reported in this paper is to prepare hybrid pigments fabricated by depositing pigment yellow 12 (PY12) on the surface of silica gel to improve the application performance of the resulting pigments. The particle size distribution, optical properties, thermal stability, water dispersibility and flowability of the pigments with and without silica gel modification were studied. Design/methodology/approach The hybrid pigments were synthesised with different amount of silica gel. The modified pigments were characterised by Fourier transforms infrared spectroscopy, X-r

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Tsiailanis, Antonis D., Chrysanthi Pateraki, Mary Kyriazou, et al. "Chemical Profiling, Bioactivity Evaluation and the Discovery of a Novel Biopigment Produced by Penicillium purpurogenum CBS 113139." Molecules 27, no. 1 (2021): 69. http://dx.doi.org/10.3390/molecules27010069.

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Biobased pigments are environmentally friendly alternatives to synthetic variants with an increased market demand. Production of pigments via fermentation is a promising process, yet optimization of the production yield and rate is crucial. Herein, we evaluated the potential of Penicillium purpurogenum to produce biobased pigments. Optimum sugar concentration was 30 g/L and optimum C:N ratio was 36:1 resulting in the production of 4.1–4.5 AU (namely Pigment Complex A). Supplementation with ammonium nitrate resulted in the production of 4.1–4.9 AU (namely Pigment Complex B). Pigments showed exc

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Partridge, J. C., S. N. Archer, and J. Vanoostrum. "Single and multiple visual pigments in deep-sea fishes." Journal of the Marine Biological Association of the United Kingdom 72, no. 1 (1992): 113–30. http://dx.doi.org/10.1017/s0025315400048827.

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The visual pigments in the retinal rods of 17 species of deep-sea fish were examined by microspectrophotometry or visual pigment extract spectrophotometry. In 15 species single visual pigments were found with peak sensitivities between 470 and 490 nm, typical of deep-sea fishes. However, in one species, Stylephorons cordatus, two visual pigments were found with λ values at 470 and 481 nm. In another species, Scopelarchus analis, three visual pigments were found with mean λ values of 444, 479 and 505 nm. The short-wave pigment of this species was found both in main and accessory retinae. It was

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Guo-Ping, Zhao, Li Ying-Qiu, Yang Jie, and Cui Kai-Yu. "Antibacterial characteristics of orange pigment extracted from Monascus pigments against Escherichia coli." Czech Journal of Food Sciences 34, No. 3 (2016): 197–203. http://dx.doi.org/10.17221/430/2015-cjfs.

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The antibacterial characteristics of orange pigment, which is one of the Monascus pigments, against Escherichia coli were investigated. Orange pigment exhibited strong antibacterial activity against E. coli evidenced by an increase in the diameter of inhibition zone with orange pigment treatment. The concentration of 2.5 mg/ml was the minimum inhibitory concentration of orange pigment against E. coli. Scanning electron microscopy revealed that orange pigment could damage bacterial cells, eventually resulting in cell death. The increase in the electric conductivity of bacterial cell suspensions

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Huang, Luwen, and Liping Zhu. "Research Progress of Natural Edible Blue Pigment." Academic Journal of Science and Technology 2, no. 3 (2022): 20–25. http://dx.doi.org/10.54097/ajst.v2i3.1438.

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Natural edible blue pigment is a scarce pigment among natural pigments, mainly derived from animal and plant tissues, microbial fermentation metabolites. Among the plant natural blue pigments, the ones that account for the widest market of edible natural blue pigments are algal blue pigment and gardenia blue pigment. The sources of microbial natural blue pigment include some fungi and bacteria in addition to microalgae, mainly focusing on the study of Streptomyces, Pseudomonas, Pseudoalteromonas, purple non-sulfur bacteria, Dourollerella, and sprouting short-stalked mold. The natural blue pigm

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Tjokro Atmodjo, Felix Adrian, Kestrilia Rega Prilianti, and Hendry Setiawan. "Rancang Bangun Aplikasi Berbasis Android untuk Perbaikan Kualitas Citra Tanaman Atas Perbedaan Spesifikasi Kamera Smartphone pada Prediksi Kandungan Pigmen Fotosintesis Secara Real-Time." Jurnal Teknologi Informasi dan Ilmu Komputer 9, no. 7 (2022): 1679. http://dx.doi.org/10.25126/jtiik.2022976771.

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<p><span lang="IN">Pigmen utama yang berperan penting pada fotosintesis, yaitu klorofil, karotenoid dan antosianin dapat dianalisis kandungannya untuk menentukan status kesehatan tanaman. Metode analisis kandungan pigmen yang dilakukan secara destruktif memerlukan penanganan khusus dan biaya yang tinggi. Fuzzy Piction adalah aplikasi Android yang telah dikembangkan sebelumnya untuk prediksi kandungan pigmen utama pada tanaman. Aplikasi tersebut mempunyai kemampuan untuk melakukan prediksi kandungan pigmen pada citra daun secara non-destruktif dengan menggunakan model Convolutional

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Hwang, Ga-hyun, Sun Myung Lee, and Hye Young Jeong. "Current Status and Raw Material Characteristics of Painted Pigment in used Traditional Dancheong: Focused on the National-designated Wooden Architectural Heritages in Korea." Journal of Conservation Science 38, no. 6 (2022): 703–19. http://dx.doi.org/10.12654/jcs.2022.38.6.12.

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In this study, the composition of traditional Korean Dancheong pigments existing in national-designated wooden architectural heritages was analyzed, and the current status of pigments according to the raw material characteristics used was statistically examined. As for the red pigment, Seokganju, Yeondan, Jusa had a high share, and natural and artificial inorganic pigments had a high usage rate. As for yellow pigments, organic pigments(estimated Deunghwang), Hhwangto, and gold showed a high share. In the case of organic pigments and gold, Yeonbaek was used as a based pigment to increase color

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Djunaedi, Ali, Chrisna Adi Suryono, and Sardjito Sardjito. "Kandungan Pigmen Polar Dan Biomassa Pada Mikroalga Dunaliella Salina Dengan Salinitas Berbeda." Jurnal Kelautan Tropis 20, no. 1 (2017): 1. http://dx.doi.org/10.14710/jkt.v20i1.1347.

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Polar pigments content and biomass of Dunaliella salina are affected by salinity related to osmotic pressure and density of media. This study was to determine the effect of salinity on pigment contents and dried biomass of microalgae D. salina. The cultivation used microalgae derived from Balai Besar Pengembangan Budidaya Air Payau (BBPBAP), Jepara. Research method was the Laboratory study with a Completely Randomized Design (CRD). Consisting of one treatment with five stages of salinity treatments: 20 ppt, 25 ppt, 30 ppt, 35 ppt, and 40 ppt and using three times of repetition. Analysis of pig

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Djunaedi, Ali, Sunaryo Sunaryo, Chrisna Adi Suryono, and Adi Santosa. "Kandungan Pigmen Fikobiliprotein dan Biomassa Mikroalga Chlorella vulgaris pada media dengan Salinitas Berbeda." Jurnal Kelautan Tropis 20, no. 2 (2017): 112. http://dx.doi.org/10.14710/jkt.v20i2.1736.

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Phyobilliprotein (phycocyanin and allophycocyanin) pigments content and biomass of Chlorella vulgarisare affected by salinity related to osmotic pressure and density of media. This study was to determine the effect of salinity on phycobiliproteins pigment contents and biomass of microalgae Chlorella vulgaris. The cultivation used microalgae derived from Balai Besar Pengembangan Budidaya Air Payau (BBPBAP), Jepara. Research method was the Laboratory study with a Completely Randomized Design (CRD). Consisting of one treatment with five stages of salinity treatments: 20, 25, 30, 35, and 40 ppt an

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Nasriani, Nasriani. "EKSTRAKSI PIGMEN KAROTENOID PADA CANGKANG KEPITING SEBAGAI PEWARNA ALAMI YANG SEHAT." Akademika : Jurnal Ilmiah Media Publikasi Ilmu Pengetahuan dan Teknologi 7, no. 1 (2018): 27. http://dx.doi.org/10.31314/akademika.v7i1.95.

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Extraction of carotenoid pigments from crab shells is a step to create healthy natural dyes through the utilization of industrial waste. Because, crab shells contain various types of carotenoid pigments that serve as provitamin A and antioxidants for the body.This research used maseration method by using silent solvent at room temperature. In the extraction process used 2: 1 solvent ratio with the shell then stored in a freezer temperature -20oC then applied to sausage and onde-onde food products. The resulting carotenoid pigment was analyzed using a spectrophotometer. The results showed that

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Chaves, Claudiane Aparecida Rocha, Diogo Alvarenga Miranda, Adriano Geraldo, Luiz Carlos Machado, Jean Kaique Valentim, and Rodrigo Garófallo Garcia. "Natural and synthetic pigments in sorghum-based diets for laying hens." Acta Scientiarum. Animal Sciences 44 (April 29, 2022): e53060. http://dx.doi.org/10.4025/actascianimsci.v44i1.53060.

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The objective of this work was to evaluate the supplementation of yellow natural pigment levels based on Marigold Flower extract (2%) and yellow synthetic pigment (Carophyll Yellow 10%) in sorghum-based rations for commercial laying hens and their influence on bird performance and egg quality. A completely randomized design was adopted with 5 treatments, 6 replicates, and 5 laying hens in each repetition. The treatments evaluated were: Sorghum based diet without supplementation with pigmentant - Negative Control; 150 g t-1 of Yellow Natural Pigment feed; 300 g t-1 of yellow natural pigment fee

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B. N., Narendrababu, and Shishupala S. "Bioprospecting of Talaromyces ruber pigments for antimicrobials." Biomedicine 43, no. 3 (2023): 963–71. http://dx.doi.org/10.51248/.v43i3.2667.

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Introduction and Aim: Metabolic flexibility of fungi is unique among organisms. Fungi can produce various pigments of industrial importance. Potential of Talaromyces ruber for beneficial pigments needs to be explored. Hence, the present study aims at the detection of pigments from T. ruber and determining their antimicrobial properties. Materials and Methods: A soil isolate of T. ruber was tested for pigment production. Cellular and secretory pigments were extracted. They were separated by thin-layer chromatography (TLC) and detected by UV-Visible spectrophotometry. The antibacterial activitie

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van de Streek, Jacco, Jürgen Brüning, Svetlana N. Ivashevskaya, et al. "Structures of six industrial benzimidazolone pigments from laboratory powder diffraction data." Acta Crystallographica Section B Structural Science 65, no. 2 (2009): 200–211. http://dx.doi.org/10.1107/s0108768108041529.

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The crystal structures of six industrially produced benzimidazolone pigments [Pigment Orange 36 (β phase), Pigment Orange 62, Pigment Yellow 151, Pigment Yellow 154 (α phase), Pigment Yellow 181 (β phase) and Pigment Yellow 194] were determined from laboratory X-ray powder diffraction data by means of real-space methods using the programs DASH and MRIA, respectively. Subsequent Rietveld refinements were carried out with TOPAS. The crystal phases correspond to those produced industrially. Additionally, the crystal structures of the non-commercial compound `BIRZIL' (a chloro derivative of Pigmen

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Puspita, Dhanang, Isnaini K. Putri, Fitri H. Al-Janati, and Milka M. Mulyanto. "Isolasi, Identifikasi Pigmen, dan Analisis Aktivitas Antioksidan Pigmen Monascus." JURNAL BIOLOGI PAPUA 12, no. 2 (2020): 102–8. http://dx.doi.org/10.31957/jbp.1148.

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Monascus is a type of organism that can produce natural pigments. Monascus pigments have been widely used in the food and pharmaceutical industries. Besides having natural pigments, Monascus also contains antioxidants as preventing of the free radicals. The purpose of this study is to isolate, identify the type of pigment, and analyze antioxidant activity. This research method is divided into 3 stages; Monascus isolation, pigment identification with UV-vis spectrophotometer and TLC, and calculation of antioxidant activity with DPPH. The isolated Monascus had 3 pigment fractions and contained a

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Пушкарьова, К. К., and Л. В. Терещенко. "ASSESSMENT OF THE INFLUENCE OF INORGANIC PIGMENTS ON THE TECHNOLOGICAL PROPERTIES OF DECORATIVE CEMENTS." Building production, no. 76 (September 18, 2024): 37. http://dx.doi.org/10.36750/2524-2555.76.37-42.

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The article presents the results of research on the influence of inorganic pigments on the technological properties of decorative cements. It has been established that regardless of the color of the pigment, with an increase in its quantity in the system, we get a more saturated and bright color of cement stone, but at the same time there is a negative effect of pigments and technological and physical and mechanical properties of artificial stone. The research was conducted on cement systems based on white Portland cement without additives and on cement systems based on white Portland cement m

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Fauziah, Anna, Dietriech G. Bengen, Mujizat Kawaroe, Hefni Effendi, and Majariana Krisanti. "HUBUNGAN ANTARA KETERSEDIAAN CAHAYA MATAHARI DAN KONSENTRASI PIGMEN FOTOSINTETIK DI PERAIRAN SELAT BALI." Jurnal Ilmu dan Teknologi Kelautan Tropis 11, no. 1 (2019): 37–48. http://dx.doi.org/10.29244/jitkt.v11i1.23108.

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ABSTRAKCahaya matahari merupakan salah satu faktor lingkungan terpenting baik secara langsung maupun tidak langsung bagi organisme fotosintetik perairan dalam menyediakan energi untuk diubah menjadi energi kimia dengan bantuan klorofil. Penelitian ini bertujuan untuk mengkaji hubungan antara ketersediaan cahaya matahari dan konsentrasi pigmen fotosintetik di Perairan Selat Bali. Penelitian dilaksanakan pada pagi, siang dan sore hari pada lima stasiun penelitian di Perairan Selat Bali. Analisis korelasi kanonik digunakan untuk mengetahui hubungan antara ketersediaan cahaya matahari dan pembentu

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Lebeau, Juliana, Thomas Petit, Mireille Fouillaud, Laurent Dufossé, and Yanis Caro. "Alternative Extraction and Characterization of Nitrogen-Containing Azaphilone Red Pigments and Ergosterol Derivatives from the Marine-Derived Fungal Talaromyces sp. 30570 Strain with Industrial Relevance." Microorganisms 8, no. 12 (2020): 1920. http://dx.doi.org/10.3390/microorganisms8121920.

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Many species of Talaromyces of marine origin could be considered as non-toxigenic fungal cell factory. Some strains could produce water-soluble active biopigments in submerged cultures. These fungal pigments are of interest due to their applications in the design of new pharmaceutical products. In this study, the azaphilone red pigments and ergosterol derivatives produced by a wild type of Talaromyces sp. 30570 (CBS 206.89 B) marine-derived fungal strain with industrial relevance were described. The strain was isolated from the coral reef of the Réunion island. An alternative extraction of the

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Tearle, Rick. "Tissue specific effects of ommochrome pathway mutations in Drosophila melanogaster." Genetical Research 57, no. 3 (1991): 257–66. http://dx.doi.org/10.1017/s0016672300029402.

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SummaryThe tissue-specific effects of 17 mutations affecting the synthesis of brown eye pigment (xanthommatin) have been investigated by combining them with chocolate and red cells, two mutations causing ectopic pigmentation of the Malpighian tubules and larval fat body (which normally only synthesize pigment precursors). The majority of mutations block the pigmentation of four organs: the normally pigmented eyes and ocelli, and ectopically pigmented tubules and fat body. They represent genes that would appear to be required for the normal operation of the pathway per se and are likely to enco

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Palomino Agurto, Mardonio E., Sarath M. Vega Gutierrez, R. C. Van Court, Hsiou-Lien Chen, and Seri C. Robinson. "Oil-Based Fungal Pigment from Scytalidium cuboideum as a Textile Dye." Journal of Fungi 6, no. 2 (2020): 53. http://dx.doi.org/10.3390/jof6020053.

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Identification of effective natural dyes with the potential for low environmental impact has been a recent focus of the textile industry. Pigments derived from spalting fungi have previously shown promise as textile dyes; however, their use has required numerous organic solvents with human health implications. This research explored the possibility of using linseed oil as a carrier for the pigment from Scytalidium cuboideum as a textile dye. Colored linseed oil effectively dyed a range of fabrics, with natural fibers showing better coloration. Scanning electron microscopy (SEM) revealed a pigm

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Zhang, Chan, Qing Sun, Le Yang, et al. "Mutation Breeding of Monascus to Produce a High Yield of Orange Pigment and Low Citrinin Content Using the ARTP Method." Journal of Fungi 10, no. 8 (2024): 553. http://dx.doi.org/10.3390/jof10080553.

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Monascus is a filamentous fungus with a long history of application in China, which can produce a variety of secondary metabolites, including Monascus red pigments, Monascus orange pigments, Monascus yellow pigments, and citrinin. There is widespread attention being paid to natural pigments because of their safety. Among the many natural pigments, orange pigment has a wide range of applications because of its unique color, but current production levels in the orange pigment industry are limited to a certain extent due to the insufficiently wide range of sources and low production. In this stud

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Tan, Cheng, Zhong-Sheng Min, Yanning Xue, and Wen-Yuan Zhu. "Spectrum of Dermoscopic Patterns in Lichen Planus: A Case Series from China." Journal of Cutaneous Medicine and Surgery 18, no. 1 (2014): 28–32. http://dx.doi.org/10.2310/7750.2013.13049.

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Background: Dermoscopy has been shown to be a promising method to facilitate the diagnosis of lichen planus (LP) outside of China. Objective: To investigate the spectrum of dermoscopic patterns in Chinese LP patients. Methods: The clinical data and dermoscopic patterns of nine LP cases with a total of 43 lesions were evaluated. Results: To the naked eye, 20.97% of the lesions exhibited graying Wickham striae (WS); however, 37.5% presented with white streaks of annular, reticular, or leaf venation patterns under dermoscopy. Blue-white veils were occasionally observed in the center. Pigment patt

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LYONS, ANTHONY V., and GREGG REED. "Pigmented aqueous barrier coatings." November 2020 19, no. 11 (2020): 551–58. http://dx.doi.org/10.32964/tj19.11.551.

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The desire for more sustainable packaging has led to the development of new packaging materials that are fiber based. Aqueous coatings are a pathway to improve the recyclability of these materials. Pigments used in these coatings can improve the performance of the coating and reduce cost while further improving the recyclability. Mineral pigments are also considered to be compost neutral. In this paper, we provide the reader a better fundamental understanding of the mechanisms by which pigments work in barrier coatings. A pigment’s mineralogy and physical characteristics are important to how i

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Shahin, Yahya H., Bassma H. Elwakil, Doaa A. Ghareeb, and Zakia A. Olama. "Micrococcus lylae MW407006 Pigment: Production, Optimization, Nano-Pigment Synthesis, and Biological Activities." Biology 11, no. 8 (2022): 1171. http://dx.doi.org/10.3390/biology11081171.

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Bacterial pigments (e.g., melanin and carotenoids) are considered to be among the most important secondary metabolites due to their various pharmacological activities against cancer and microbial resistance. Different pigmented bacterial strains were isolated from soil samples from El Mahmoudiyah governance and screened for their antimicrobial activity. The most promising pigment producer was identified as Micrococcus lylae MW407006; furthermore, the produced pigment was identified as echinenone (β-carotene pigment). The pigment production was optimized through a central composite statistical

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Gorgieva, Selestina, Natalija Virant, and Alenka Ojstršek. "Complementary Assessment of Commercial Photoluminescent Pigments Printed on Cotton Fabric." Polymers 11, no. 7 (2019): 1216. http://dx.doi.org/10.3390/polym11071216.

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The presented study focuses on photoluminescent pigments applied on cotton fabric by a screen-printed procedure using polydimethylsiloxane (PDMS) as a binder. Microscopic data depicts irregular shapes and relatively wide size distribution (3–80 µm) of pigments. Regarding composition, the Energy-Dispersive X-ray (EDX) and Fourier Transform Infrared (FTIR) spectroscopy data complement findings suggesting the presence of Eu-doped strontium aluminate in the yellow-green, calcium aluminate in the violet pigment, and metal oxides in the blue pigment. The optical properties of pigment-enriched PDMS-c

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Lbova, Liudmila. "Pigment compositions in Siberian early Upper Paleolithic complexes." Journal of the International Union of Prehistoric and Protohistoric Sciences 3, no. 2 (2021): 116–23. http://dx.doi.org/10.62526/lj9ubu.

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Cultural assemblages associated with archaic forms of Homo sapiens in Siberia appeared around 40 000 – 50 000 years BP, revealing the evidence of the modern behavioural complex and use of various pigments. Multi-element composition of pigment materials appearing on some Early Upper Palaeolithic objects, which was obtained using SEM-EDX analysis, showed differences in the use of various natural ingredients in the territories of Southern Siberia (as Kara-Bom, Denisova cave (11), Malaya Syya, Khotyk-3, and Kamenka). Microscopic examination and identification of traces using low- and high-power mi

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Chudiwal, Dr Anupriya. "Extraction of Bacterial Pigments and Evaluation of its Antioxidant Activity." International Journal for Research in Applied Science and Engineering Technology 12, no. 9 (2024): 1360–65. http://dx.doi.org/10.22214/ijraset.2024.64351.

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Carotenoid are pigment that exist in a wide variety of plant and microorganism they are characterized by red, yellow or orange coloration .These important pigment play significant role in animal and human health .In contrast to plant production, the advantages of microbial fermentation of carotenoids were lower media cost, fast growth rate of microorganism and the ease of culture control . When the microbial cells are used to produce the color the term refers to ‘microbial pigments’. Different types of pigments extracted from different microbes. In this study, soil and water samples were colle

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