Nondestructive Raman investigation on wall paintings at Sala Vaccarini in Catania (Sicily) [PDF]
, 2016 In this work, the results of a Raman campaign for studying seventeenth-century Sicilian frescoes, by using two portable Raman systems, equipped with different excitation sources (785 and 1064 nm), are proposed.
Agostino, Giuseppe +10 more
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Recent advances of natural pigments from algae
Food Production, Processing and Nutrition, 2023 Pigment is an important food additive that plays a major role in the sensory impact of food. And natural sources, healthy and non-toxic edible pigments are receiving a lot of attention.
Zhengxin Chen +8 more
doaj +1 more source
Fungal Pigments: Carotenoids, Riboflavin, and Polyketides with Diverse Applications
Journal of Fungi, 2023 Natural pigments and colorants have seen a substantial increase in use over the last few decades due to their eco-friendly and safe properties. Currently, customer preferences for more natural products are driving the substitution of natural pigments for
Maria Afroz Toma +5 more
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Quality Comparison of Pepper Oleoresins from Different Geographical Origins by Multi-instrumental Analysis Combined with Chemometrics [PDF]
Shipin Kexue, 2023 Objective: To establish chemical fingerprints of pepper oleoresins from different geographical origins and comprehensively analyze and compare their quality characteristics.
LI Tong, WANG Yuhang, WANG Xianghong, ZHANG Yuhan, MI Si
doaj +1 more source
Storage stability of encapsulated barberry's anthocyanin and its application in jelly formulation [PDF]
, 2016 The barberry (Berberis vulgaris) extract which is a rich source of anthocyanin was used for encapsulation with three different wall materials i.e., combination of gum Arabic and maltodextrin (GA+MD), combination of maltodextrin and gelatin (MD+GE) and ...
Akhavan Mahdavi, S. +3 more
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Fungal Pigments and Their Prospects in Different Industries
Microorganisms, 2019 The public’s demand for natural, eco-friendly, and safe pigments is significantly increasing in the current era. Natural pigments, especially fungal pigments, are receiving more attention and seem to be in high demand worldwide.
Ajay C. Lagashetti +3 more
doaj +1 more source
Studies on Bile Pigments II. Seperation of Natural Direct Bilirubins [PDF]
, 1956 Separation of both forms of the direct bilirubin were carried out from the dog's gallbladder bile, and further isolations of them were also done. 1. The natural salt-form bilirubin was isolated after separation on the column of aluminium oxide with a n ...
Sakamoto, Takeshi
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Synthesis of Dioxo-Dioxane and Dioxo-Dioxepane Ethyl Oleate Derivatives as Bio-Lubricant Base Stocks
Indonesian Journal of Chemistry, 2020 In this study, two novel compounds, i.e., ethyl 8-(3-octyl-5,6-dioxo-1,4-dioxan-2-yl)octanoate and ethyl 8-(3-octyl-5,7-dioxo-1,4-dioxepan-2-yl)octanoate were prepared from oleic acid as the starting material.
Tutik Dwi Wahyuningsih +1 more
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Fungal Pigments: Their Diversity, Chemistry, Food and Non-Food Applications
Applied Microbiology, 2023 Colorants have many applications in food, cosmetics, pharmaceutics, textile, paints, plastics, paper, ink and photographic industries. Colorants are classified according to their solubility into dyes and pigments.
Waill Elkhateeb, Ghoson Daba
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Automatic classification system of Raman spectra applied to pigments analysis [PDF]
, 2016 Raman spectroscopy is one of the few non-destructive techniques capable of identifying pigments in art works. Raman spectra contain powerful information that can be used to identify unknown compounds and their chemical structures.
González Vidal, Juan José +2 more
core +2 more sources