نتایج جستجو برای: natural pigment

تعداد نتایج: 506006  

Journal: :applied food biotechnology 0
atieh seyedin department of life sciences engineering, faculty of new sciences and technologies, university of tehran, tehran, iran. fatemeh yazdian department of life sciences engineering, faculty of new sciences and technologies, university of tehran, tehran, iran. ashrafalsadat hatamian-zarmi department of life sciences engineering, faculty of new sciences and technologies, university of tehran, tehran, iran. behnam rasekh microbiology and biotechnology research group, research institute of petroleum industry, tehran, iran. mohammad mirderikvand department of life sciences engineering, faculty of new sciences and technologies, university of tehran, tehran, iran.

among the ways of pigment production, microbial synthesis has gained more interest for high growth rate, easy extraction and high yield. pigments are used in the food industry as natural colorants and preservatives; they also have pharmaceutical applications. in this study, fungus monascus purpureus ptcc 5303 was used to produce red, orange and yellow pigments. at first, significant variables w...

ژورنال: طب جنوب 2022
Amoozegar , Mohammad Ali, Shahbazi , Saghar, Zargar , Mohsen, Zolfaghari , Mohammad Reza,

Background: Halophilic microorganisms have the potential to produce new biomolecules, including anti-cancer compounds, for medical applications. The purpose of this study was to evaluate the anti-cancer properties of pigments extracted from native Iranian halophilic Archaeon. Materials and Methods: Pigment extract of Haloarcula sp. previously isolated and identified from Aran-Bidgol Lake was e...

Journal: Nanomedicine Journal 2020
Davoud Salarbashi, Elham Fahmideh Rad Javad Bazeli,

Natural food pigments are commonly utilized for the improvement of the qualitative properties of foods and/or inhibit the development of chronic and degenerative diseases. Several studies have documented the beneficial health effects of natural food pigments, such as anthocyanins, chlorophylls, and carotenoids. These effects mainly depend on the stability, bioactivity, and bioavailability of th...

2018
Ramendra Singh Parmar Charu Singh

Actinomycetes, a large group of filamentous bacteria account for 70-80% of secondary metabolites available commercially. The present investigation was undertaken with an aim to identify and characterize pigment from actinomycetes. Actinomycetes were isolated from rhizosphere soil samples collected from different regions of Madhya Pradesh state. Out of 85 actinomycetes, only 5 actinomycetes show...

2010
Louise K. Charkoudian Jay T. Fitzgerald Chaitan Khosla Andrea Champlin

Recent advances in the study of natural products made by bacteria have laid the foundation for engineering these molecules and for developing cost-effective ways to manufacture them. In our lab, we study a number of natural products that are synthesized by harmless soil bacteria of the Streptomyces genus. Whereas our primary interest in these molecules is due to their antibiotic properties, man...

2017
Malarvizhi

Natural products either synthesized or secreted by organisms represent one of the critical sources of potential medicinal use. Both natural pigments and synthetic dyes have been widely used in different fields in on a daily basis life such as foods or feeds, textiles, cosmetics, pharmaceuticals, paper printing inks, etc. Secondary metabolites of bacterial origin include various enzymes, pigment...

2016
Aaron H Fronk Elizabeth Vargis

The retinal pigment epithelium is an important part of the vertebrate eye, particularly in studying the causes and possible treatment of age-related macular degeneration. The retinal pigment epithelium is difficult to access in vivo due to its location at the back of the eye, making experimentation with age-related macular degeneration treatments problematic. An alternative to in vivo experimen...

2015
Jan-Erik Thrane Marcia Kyle Maren Striebel Sigrid Haande Merete Grung Thomas Rohrlack Tom Andersen Francois G. Schmitt

The Gauss-peak spectra (GPS) method represents individual pigment spectra as weighted sums of Gaussian functions, and uses these to model absorbance spectra of phytoplankton pigment mixtures. We here present several improvements for this type of methodology, including adaptation to plate reader technology and efficient model fitting by open source software. We use a one-step modeling of both pi...

ژورنال: انرژی ایران 2020

Three natural pigments including wild iris, black pomegranate bark and black grapes were used as sensitizer in dye sensitized solar cells (DSSCs) based on TiO2 nanoparticles. The results showed that the DSSC made of black pomegranate bark was more efficient than the other cells due to its strong bonding with TiO2 nanoparticles. Longer electron lifetime, lower electron recombination, and lower...

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