نتایج جستجو برای: selenium extraction

تعداد نتایج: 180097  

2014
A. V. Tugarova A. N. Kazakova A. A. Kamnev S. S. Zlotskii

Bacteria of the genus Azospirillum are among the most studied bacteria, stimulating the growth of plants and capable of associative interaction with many higher plants. They have a high adaptive potential to the negative external influences, like the lack of nutrients, salinity, lack of moisture. Compared with other rhizosphere microorganisms, Azospirillum have sufficiently high resistance to h...

2010
Saverio Stranges Sabina Sieri Marco Vinceti Sara Grioni Eliseo Guallar Martin Laclaustra Paola Muti Franco Berrino Vittorio Krogh

BACKGROUND Growing evidence raises concern about possible associations of high selenium exposure with diabetes in selenium-replete populations such as the US. In countries with lower selenium status, such as Italy, there is little epidemiological evidence on the association between selenium and diabetes. This study examined the prospective association between dietary selenium intake and risk of...

2016
Bo Yin

In recent years, the research on the relationship between selenium and exercise capacity has become a hot research topic. Selenium is a necessary trace element in human body. This paper aims to elaborate the chemical composition of selenium and biological effects, discuss the relationship between selenium supplement and exercise capacity, and then investigate the potential applications of selen...

Journal: :Applied and environmental microbiology 2011
Markus Lenz Boris Kolvenbach Benjamin Gygax Suzette Moes Philippe F X Corvini

Selenium-reducing microorganisms produce elemental selenium nanoparticles with particular physicochemical properties due to an associated organic fraction. This study identified high-affinity proteins associated with such bionanominerals and with nonbiogenic elemental selenium. Proteins with an anticipated functional role in selenium reduction, such as a metalloid reductase, were found to be as...

Journal: :Horticulturae 2023

Edible fungi are often used as an important selenium (Se) source to improve human daily Se intakes food or supplements because of their strong ability accumulate Se, in which Ganoderma lucidum was widely accepted China. However, the existing speciation analysis methods such protease K-based trypsin-protease XIV-based, have low extraction rate and enzymatic hydrolysis (<30%) on Se-enriched ed...

2004
Laura J Raymond

Measuring the amount of mercury present in the environment or food sources may provide an inadequate reflection of the potential for health risks if the protective effects of selenium are not also considered. Selenium's involvement is apparent throughout the mercury cycle, influencing its transport, biogeochemical exposure, bioavailability, toxicological consequences, and remediation. Likewise,...

2014
Irma M Puspitasari Rizky Abdulah Chiho Yamazaki Satomi Kameo Takashi Nakano Hiroshi Koyama

To establish guidelines for the selenium supplementation in radiotherapy we assessed the benefits and risks of selenium supplementation in radiotherapy. Clinical studies on the use of selenium in radiotherapy were searched in the PubMed electronic database in January 2013. Sixteen clinical studies were identified among the 167 articles selected in the initial search. Ten articles were observati...

Journal: :Folia biologica 2012
Monika Stepińska Emilia Mróz Jan Jankowski

The objective of this study was to determine the effect of dietary selenium source on the growth and development of turkey embryos, and egg hatchability. White broad-breasted BUT Big 6 turkeys (1800 females and 150 males) were placed under optimum management conditions. Turkey diets were supplemented with organic selenium, and in the other with inorganic selenium, in the amount of 0.3 ppm. Eggs...

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