Results 31 to 40 of about 617,985 (339)

Carotenoides bixina e norbixina extraídos do urucum (Bixa orellana L.) como antioxidantes em produtos cárneos Carotenoids bixin and norbixin from annatto (Bixa orellana L.) as antioxidants in meat products

open access: yesCiência Rural, 2012
A oxidação lipídica é uma das principais alterações que acometem os derivados cárneos em razão da composição química rica em lipídios e íons ferro, utilização de processos térmicos e de moagem, além do frequente uso do cloreto de sódio, um reconhecido ...
Carlos Eduardo Rocha Garcia   +4 more
doaj   +1 more source

Optimal number of pigments in photosynthetic complexes

open access: yes, 2012
We study excitation energy transfer in a simple model of photosynthetic complex. The model, described by Lindblad equation, consists of pigments interacting via dipole-dipole interaction.
Marko Žnidarič   +9 more
core   +1 more source

Rational design of photofunctional dyes BODIPYs/aza-BODIPYs and applications for photocatalysis, photoelectric conversion and thermochromic materials

open access: yesResources Chemicals and Materials
4,4-Difluoro-4-bora-3a,4a-diaza-sindacene (BODIPY) is a sort of photofunctional dye which possesses advantages including strong light-capturing property, high photon-resistance, etc.
Dongxiang Zhang   +4 more
doaj   +1 more source

Identification of bacterial endophytes from champa rice cultivar and study of their effects on growth properties of host plant [PDF]

open access: yesمجله بیوتکنولوژی کشاورزی, 2017
Endophytes are symbiont microorganisms within apoplast or symplast of plants that promote growth, control phytopathogens, increase plant resistance to stress and improve plant growth conditions. The aim of this study was identification of endophytes from
Mansoor Seyedneghad   +2 more
doaj   +1 more source

Pigmented melanoma cell migration study on murine syngeneic B16F10 melanoma cells or tissue transplantation models [PDF]

open access: yes, 2019
Melanoma is a lethal form of skin cancer with poor prognosis, especially due to the early metastatic feature. Recent studies have shown that the melanin pigment influences the nanomechanical properties and, therefore, the metastatic behavior of the ...
Buteică, Sandra Alice   +5 more
core   +2 more sources

Síntese de pigmentos cerâmicos por precipitação química Synthesis of ceramic pigments by chemical precipitation

open access: yesCerâmica, 2007
Os pigmentos cerâmicos são substâncias capazes de desenvolver cor em sólido inorgânico (cerâmica ou vidro) quando nele dispersar mantendo-se insolúvel no mesmo, sem reação química com o mesmo, nas elevadas temperaturas de processamento.
R. N. de Almeida   +5 more
doaj   +1 more source

Retinal adaptation of Japanese common squid (Todarodes pacificus Steenstrup) to light changes [PDF]

open access: yes, 1985
The response of retinae of the Japanese common squid (Todarodes pacificus Steenstrup) was recorded in relation to various light intensities. In the light-adapted eye of common squid, the black pigment ascends to the external limiting membrance of the ...
Hiroshi, Inada   +2 more
core  

The nicotinamide hypothesis revisited—plant defense signaling integrating PARP, nicotinamide, nicotinic acid, epigenetics, and glutathione

open access: yesFEBS Letters, EarlyView.
Nicotinamide (NIC) and nicotinic acid (NIA) are proposed as stress signaling compounds in plants. Oxidative stress may lead to single strand breaks (SSB) in DNA, which activate poly(ADP‐ribose) polymerase (PARP). NIC and NIA are then formed from NAD. NIC and NIA can promote epigenetic changes leading to the expression of defense genes specific for the ...
Torkel Berglund, Anna B. Ohlsson
wiley   +1 more source

Changes in Structure of Head Feathers of Wild Plumage Type: Male Mallard Ducks (Anas platyrhynchos var. domesticus) Following Seasonal Plumage Changes

open access: yesThe Journal of Poultry Science, 2005
Seasonal changes occur in the plumage of male mallard ducks, and this phenomenon is referred to as seasonal dimorphism of the plumage. However, no information is available, especially morphological, about the mechanisms that control these changes.
Jun Watanabe, Machiko Imai, Shoei Sugita
doaj   +1 more source

Comparative Transcriptomic Analysis of Key Genes Involved in Citrinin Biosynthesis in Monascus purpureus

open access: yesJournal of Fungi, 2023
Monascus pigments (MPs) display many beneficial biological activities and have been widely utilized as natural food-grade colorants in the food processing industry.
Yingying Huang   +3 more
doaj   +1 more source

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