نتایج جستجو برای: pigments

تعداد نتایج: 13305  

2010
Katrin Steinbach

Cosmetic Science Technology 2010 1 Abstract Borosilicate pigments represent a new variety in the wellknown class of pearlescent pigments. Consisting of transparent borosilicate flakes coated with high refractive metal oxides, e.g. titanium dioxide or iron oxides, these innovative pigments allow the achievement of optimum interference effects in combination with outstanding transparency. Borosil...

2008
Summarv TeJ

Summarv TeJ pigments, the oxidative products of tea polyphenols. mainly contain [eJ theJt1a\'ins. thearubigins and other components. In short-renn screening studies. tea pigments \vas found to have significant inhibitory efffects in Gene mutation test. Micronuclei fonnation test. rvletabolic cooperation test. \ilice ear edema test. Viability and growth ability of Hela cells in soft agar and S-1...

Journal: :Vision Research 1995
Maureen Neitz Jay Neitz Gerald H. Jacobs

The spectral sensitivities of the X-encoded pigments in dichromats were studied using the electroretinogram. The action spectra measured for these subjects correspond to four distinctly different X-encoded visual pigments, two different middle-wave pigments spectrally separated by 7 nm and two different long-wave pigments separated by 5 nm. Amino acid sequences were deduced from examination of ...

2014
R. Moradpour S. B. Ahmadi T. Parhizkar M. Ghodsian E. Taheri - Nassaj

Superfine pigments that consist of natural and artificial pigments and are made of mineral soil with special characteristics are used in cementitious materials for various purposes. These pigments can decrease the amount of cement needed without loss of performance and strength and also change the monotonous and turbid colours of concrete into various attractive and light colours. In this study...

2006
Sanae Chiba Naoko Tsuyoshi Ryosuke Fudou Makoto Ojika Yoshimasa Murakami Yoshiro Ogoma Masakatu Oguchi Shigeru Yamanaka

Demand for natural instead of synthetic pigments for coloring fabrics, foods and cosmetics is increasing. Unlike pigments that are synthetic, those from natural sources allow subtle differences in tone because such pigments generally comprise various color components. Microbes have recently received focus as sources of natural pigments (Mapari et al., 2005). Many fungal species produce pigments...

Journal: :international journal of environmental research 0

monitoring and assessment of water has become environmental concern due to the contamination by man kind. one of the most important crises of the 21st century is the availability of drinking water, a resource basic to our survival and growth. most of the fresh water bodies all over the world are getting polluted thus decreasing the suitability of the fresh water. the area of the study, selected...

2005
KEVIN J. MCGRAW

Several classes of pigments impart flamboyant colours on animals, including the red, orange and yellow carotenoids. Carotenoid-based colours have served as ideal models for studying the honesty-reinforcing mechanisms underlying sexually selected traits, because the very pigments used to become colourful also have antioxidant and immunoregulatory properties that allow individuals to signal their...

Journal: :Food chemistry 2013
Umeo Takahama Ryo Yamauchi Sachiko Hirota

Adzuki bean is used to prepare many kinds of foods in east Asia, and the seed coat contains water-soluble anthocyanins, catechins, and flavonols. In the present study, ethyl acetate-soluble purplish pigments were isolated from adzuki bean. Pigments of soaked adzuki bean were extracted with 1% HCl in methanol. Ethyl acetate-soluble purple pigments were obtained from the methanol soluble componen...

Journal: :journal of cell and molecular research 0
seyed moosa moosavi-koohi jalil khara reza heidari

basil plants (ocimum basilicum l.) were sprayed with salicylic acid (1mm) and exposed to ultraviolet-c (uv-c) radiation (40 wm-2) after emergence of six developed leaves. plants were grown for 18 days and exposed to uv-c for 5 mind-1 alternatively. chlorophyll a, chlorophyll b and carotenoide were considered for analysis of photosynthetic pigments. the results showed that the photosynthetic pig...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2017
Keiichi Kojima Yuki Matsutani Takahiro Yamashita Masataka Yanagawa Yasushi Imamoto Yumiko Yamano Akimori Wada Osamu Hisatomi Kanto Nishikawa Keisuke Sakurai Yoshinori Shichida

Most vertebrate retinas contain a single type of rod for scotopic vision and multiple types of cones for photopic and color vision. The retinas of certain amphibian species uniquely contain two types of rods: red rods, which express rhodopsin, and green rods, which express a blue-sensitive cone pigment (M1/SWS2 group). Spontaneous activation of rhodopsin induced by thermal isomerization of the ...

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