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Progress on the Extraction, Separation, Biological Activity, and Delivery of Natural Plant Pigments
Molecules, 2023 Natural plant pigments are safe and have low toxicity, with various nutrients and biological activities. However, the extraction, preservation, and application of pigments are limited due to the instability of natural pigments. Therefore, it is necessary to examine the extraction and application processes of natural plant pigments in detail.
Xianwen Lu +4 more
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Recent Advances in Characterization of Melanin Pigments in Biological Samples
International Journal of Molecular Sciences, 2023 The melanin pigments eumelanin (EM) and pheomelanin (PM), which are dark brown to black and yellow to reddish-brown, respectively, are widely found among vertebrates. They are produced in melanocytes in the epidermis, hair follicles, the choroid, the iris, the inner ear, and other tissues.
Kazumasa Wakamatsu, Shosuke Ito
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Anthocyanins: Plant-based flavonoid pigments with diverse biological activities
International Journal of Plant Based Pharmaceuticals, 2022 Anthocyanins are flavonoid containing polyphenolic phytochemicals. They are widely present in plants and accounts for different color shades displayed by the plant organs. A broad range of health-revitalizing effects is attributed to anthocyanins, constituting a vital part of the human diet.
Sandip Patra +4 more
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Biology, 2022 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.
Yahya H. Shahin +3 more
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The Biological Pigments in Plants Physiology [PDF]
Agricultural Sciences, 2015 The physiology of the plants has come to be a formidable challenge. Despite best efforts, the mysteries remain, most of the processes identified cannot be played in vitro, and to date it cannot be said that knowledge about the complex biochemical processes of the plant is understood properly.
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Human hair pigmentation – biological aspects [PDF]
International Journal of Cosmetic Science, 2008 SynopsisSkin and hair colour contribute significantly to our overall visual appearance and to social/sexual communication. Despite their shared origins in the embryologic neural crest, the hair follicle and epidermal pigmentary units occupy distinct, although open, cutaneous compartments. They can be distinguished principally on the basis of the former’
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Synthesis and biological evaluation of the ascidian blood-pigment halocyamine A
Organic & Biomolecular Chemistry, 2017 The first synthesis of the (Z)-indolic enamide-containing antibacterial marine natural product halocyamine A is reported.
Hugo K. H. Fong +5 more
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Influence of biologicals on photosynthetic pigments in wheat leaves
Abstract book of the 2nd International Scientific Conference "Plants and Microbes: the Future of Biotechnology" PLAMIC2020, 2020 Multifunctional biological products based on strains of microorganisms that are antagonists of pathogens and plant disease resistance activators - chitosan and its derivatives increase the content of chlorophyll α and b in flag leaves of wheat, the number and weight of grains in the ear, potential yield, and also reduce the development of yellow rust ...
I. I. Novikova +3 more
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Human Skin Pigmentation: From a Biological Feature to a Social Determinant
Healthcare, 2023 Skin pigmentation is the most variable human characteristic that can be observed and has been used throughout history to classify humans into distinct groups. Many factors influence skin colour, but the melanin pigment is considered the most important because its type and quantity can determine variations in pigmentation shades.
Sarah Mosca, Aldo Morrone
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Study of Biological Pigments by Single Specimen Derivative Spectrophotometry
Biophysical Journal, 1970 The single specimen derivative (SSD) method provides an absolute absorption spectrum of a substance in the absence of a suitable reference. Both a reference and a measuring monochromatic beam pass through a single sample, and the specimen itself acts as its own reference. The two monochromatic beams maintain a fixed wavelength difference upon scanning,
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