Results 141 to 150 of about 1,004 (178)

Studies on interaction of norbixin with DNA: Multispectroscopic and in silico analysis

Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy, 2015
The interaction of food colorant norbixin with calf thymus DNA (CTDNA) was investigated through UV-Visible spectroscopy, Fourier Transform Infrared (FTIR), Circular Dichroism (CD), Nuclear Magnetic Resonance (NMR), DNA melting studies, electrophoretic analysis, histological staining technique and molecular docking studies.
Hridya Hemachandran, Akella Sivaramakrishna, Subramanian Babu   +2 more
exaly   +3 more sources

Biodegradable sodium alginate films incorporated with norbixin salts

Journal of Food Process Engineering, 2020
AbstractPlastic packaging derived from petroleum may have a negative impact on the environment when it is not properly recycled. Some studies present the use of biodegradable packages developed from natural polymers as a sustainable alternative; thus, the present work aimed to develop biodegradable sodium alginate films with antioxidant properties by ...
Yuri B. de Farias, Anderson K. Coutinho, Renato Q. Assis, Alessandro de Oliveira Rios   +3 more
openaire   +1 more source

Mechanism behind the degradation of aqueous norbixin upon storage in light and dark environment

Food Chemistry, 2020
Buffered aqueous solutions of norbixin were stored in light and dark, and analyzed using mass spectrometry. Compounds with both higher and lower masses than norbixin were detected, suggesting the formation of oxidation products and oxidative cleavage products of norbixin. The norbixin oxidation products included compounds containing several oxidations.
Anders Hauer Møller, Amita Jahangiri, Marianne Danielsen   +2 more
exaly   +4 more sources

Raman spectroscopic determination of norbixin and tartrazine in sugar

Food Additives & Contaminants: Part A, 2012
In this paper, a method for the detection of norbixin and tartrazine in sugar by means of resonance Raman spectroscopy is presented. The extraction was done in four steps using methanol and the measurements were performed in aqueous solution. The excitation wavelength was 514 nm for norbixin and 488 nm for tartrazine samples.
Ute, Uhlemann, Katharina K, Strelau, Karina, Weber, Paulo Augusto, Da Costa Filho, Petra, Rösch, Jürgen, Popp   +5 more
openaire   +2 more sources

Biodegradable packaging of cellulose acetate incorporated with norbixin, lycopene or zeaxanthin

Industrial Crops and Products, 2020
Abstract There is a growing interest in the use of biopolymers for the development of biodegradable packaging with the addition of natural compounds. The objective of this work is to develop cellulose acetate films with the addition of norbixin, zeaxanthin or lycopene, and to evaluate the physicochemical and barrier properties.
Renato Queiroz Assis, Polliana D’Angelo Rios, Alessandro de Oliveira Rios, Florencia Cladera Olivera   +3 more
openaire   +1 more source

A synergistic effect of Cu2+ and norbixin on DNA damage

Food and Chemical Toxicology, 2008
Annatto and its derivatives are members of carotenoids with long-chain conjugated polyenes, which are widely used as food additives and antioxidant. However, carotenoids can also act as pro-oxidant under certain circumstances. To explore the biochemical behavior of annatto and its derivatives, the DNA damage effects by norbixin to the copper(II) ions ...
Di, Ouyang, Rong, Zhang, Long, Yi, Zhen, Xi   +3 more
openaire   +2 more sources

Improving norbixin dispersibility and stability by liposomal encapsulation using the pH‐driven method

Journal of the Science of Food and Agriculture, 2021
AbstractBACKGROUNDNorbixin, a carotenoid extracted from annatto seeds, is widely utilized as a natural pigment in foods, cosmetics and medicines. Its water solubility is relatively high under neutral or alkaline conditions but low under acidic conditions, which limits its application in some food products.RESULTSThis problem was overcome by utilizing ...
Hang Liu, Junbing Zhang, Yong Xiong, Shengfeng Peng, David Julian McClements, Liqiang Zou, Ruihong Liang, Wei Liu   +7 more
openaire   +2 more sources

Norbixin, a natural dye that improves serum lipid profile in rabbits and prevents LDL oxidation

Food Research International, 2022
We hypothesized that norbixin, which is a carotenoid used as an orange/red natural food coloring additive, has anti-atherogenic properties. An in vitro oxidation assay with human LDL and a rabbit model of atherosclerosis were used to test this hypothesis. Norbixin inhibited the oxidation of isolated human LDL in a concentration-dependent manner. In the
Sabrina, Somacal, Andréia, Quatrin, Amanda R, Ruviaro, Lisiane, Conte, Dariane T, da Silva, Miguel, Roehrs, Marcelo L, da Veiga, Marta M F, Duarte, Andreza F, de Bem, Paula R, Augusti, Tatiana, Emanuelli   +10 more
openaire   +2 more sources

Incorporation of bixin in aqueous media: Self-formulation with sorbitol ester of norbixin

Food Chemistry, 2019
We have previously reported how the natural food colorant, bixin, was enzymatically modified by appending sorbitol to the bixin scaffold. The resulted product, sorbitol ester of norbixin (SEN) was expected to be more hydrophilic. The present study aimed to investigate the physical behaviour of SEN in aqueous media.
Amita Jahangiri, Anders Hauer Møller, Bjoern Madsen, Bjarne Joernsgaard, Signe Vaerbak, Marianne Danielsen, Trine Kastrup Dalsgaard   +6 more
openaire   +3 more sources

Kinetics study of norbixin’s first stage thermal decomposition, using dynamic method

Journal of Thermal Analysis and Calorimetry, 2007
Cis-norbixin isomer obtained by hydrolysis of cis-bixin and isolated by solvent extraction from annatto seeds. The thermal decomposition data of the cis-norbixin samples were analyzed by thermogravimetric analysis at different heating rates in the 25–900°C temperature range.
Gerlania S. Silva, A. G. Souza, J. R. Botelho, M. C. D. Silva, T. M. S. Silva   +4 more
openaire   +1 more source