Results 21 to 30 of about 197,649 (307)

Studies on Bile Pigments II. Seperation of Natural Direct Bilirubins [PDF]

open access: yes, 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
core   +1 more source

Betalains in some species of the amaranthaceae family: A review [PDF]

open access: yes, 2018
Natural pigments are largely distributed in the plant kingdom. They belong to diverse groups, with distinct biochemical pathways. Betalains with colours that range from yellow to red-violet can de divided into two main subgroups: betaxanthins and ...
Ali   +31 more
core   +2 more sources

Fungal Pigments and Their Prospects in Different Industries

open access: yesMicroorganisms, 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

Synthesis of Dioxo-Dioxane and Dioxo-Dioxepane Ethyl Oleate Derivatives as Bio-Lubricant Base Stocks

open access: yesIndonesian 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
doaj   +1 more source

Fungal Pigments: Their Diversity, Chemistry, Food and Non-Food Applications

open access: yesApplied 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
doaj   +1 more source

Automatic classification system of Raman spectra applied to pigments analysis [PDF]

open access: yes, 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

Nondestructive Raman investigation on wall paintings at Sala Vaccarini in Catania (Sicily) [PDF]

open access: yes, 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
core   +4 more sources

Safety Evaluation of Fungal Pigments for Food Applications

open access: yesJournal of Fungi, 2021
Pigments play a major role in many industries. Natural colors are usually much safer when compared to synthetic colors and may even possess some medicinal benefits. Synthetic colors are economical and can easily be produced compared to natural colors. In
Rajendran Poorniammal   +3 more
doaj   +1 more source

Novel application of X-ray fluorescence microscopy (XFM) for the non-destructive micro-elemental analysis of natural mineral pigments on Aboriginal Australian objects [PDF]

open access: yes, 2016
Open Access Article. This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.This manuscript presents the first non-destructive synchrotron micro-X-ray fluorescence study of natural mineral pigments on Aboriginal Australian ...
de Jonge, Martin D   +8 more
core   +1 more source

Storage stability of encapsulated barberry's anthocyanin and its application in jelly formulation [PDF]

open access: yes, 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
core   +1 more source

Home - About - Disclaimer - Privacy