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Pork longissimus muscle was oxidized at 4 °C by mixed 10 μM FeCl(3)/100 μM ascorbate with 1, 5, 10, 20, 30, 40, or 50 mM H(2)O(2) (pH 6.2). Oxidation with >1 mM H(2)O(2) for 40 min significantly (P < 0.05) enhanced hydration of muscle samples, whereas oxidation with 40 and 50 mM H(2)O(2) for 2 min or with 20 mM H(2)O(2) for 40 min caused pronounced declines in water-holding capacity and product yield. The changes coincided with marked increases in the protein carbonyl content, TBARS formation, and cross-linking of both myofibrillar and sarcoplasmic proteins. Dye-tracing tests showed that the enhanced hydration at >1 mM H(2)O(2) was due to facilitated water diffusion into muscle tissue. This result was strongly corroborated by microscopic images that illustrated enlargements of intercellular spacing, that is, gaps, in oxidized muscle tissue, which served as canals for water diffusion.
State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi 214122, China.
This article was published in the following journal.
Name: Journal of agricultural and food chemistry
The positions of water molecules have been analyzed in high quality protein X-ray crystal structures. About 70% of these water molecules are in contact with protein atoms at the protein surface and co...
The highly heterogeneous hydration dynamics of protein-water interfaces is considered important for protein stability and dynamics, protein folding, enzymatic activity and even drug design. The nuclea...
The Fox-1 RNA recognition motif (RRM) domain is an important member of the RRM protein family. We report a 1.8 Å X-ray structure of the free Fox-1 containing six distinct monomers. We use this and th...
Protein surface hydration is fundamental to its structure, flexibility, dynamics and function, but it has been challenging to disentangle their ultimate relationships. Here, we report our systematic c...
Protein surface hydration is critical to its structural properties and biological activities. However, it is still unknown whether the hydration shell is intrinsically connected and how its fluctuatio...
This study evaluates the effect of early oral hydration on bowel movement after CS, it includes 2 groups: study group participants receive 100 ml water after 1hr from the end of CS, while ...
This is a randomized controlled open-label trial. During the study, adolescents and young adults scheduled to receive at least one intra-muscular (IM) vaccine will receive either oral wat...
The "beverage hydration index" (BHI) assesses the hydration potential of any consumable fluid relative to water. The BHI is a relatively new metric. Our purpose was to assess the BHI of be...
A randomized, cross over study will assess the effects of ingestion of high and low volumes of water on REE over 90 minutes. The high volume of water 500ml and the low volume of water 250m...
The aim of this study is to determine the influence of changes in water intake on changes in cognitive function among preadolescent children. Further, the proposed work will determine the ...
An increased liquidity or decreased consistency of FECES, such as running stool. Fecal consistency is related to the ratio of water-holding capacity of insoluble solids to total water, rather than the amount of water present. Diarrhea is not hyperdefecation or increased fecal weight.
A PEROXISOME-specific enzyme that catalyzes the hydration step of the beta-oxidation pathway.
A surfactant that renders a surface wettable by water or enhances the spreading of water over the surface; used in foods and cosmetics; important in contrast media; also with contact lenses, dentures, and some prostheses. Synonyms: humectants; hydrating agents.
BREATH HOLDING; VASOCONSTRICTION; and a drop in HEART RATE in response to submersion of the face in cold water.
An enzyme that catalyzes reversibly the hydration of unsaturated fatty acyl-CoA to yield beta-hydroxyacyl-CoA. It plays a role in the oxidation of fatty acids and in mitochondrial fatty acid synthesis, has broad specificity, and is most active with crotonyl-CoA. EC 22.214.171.124.
Arthritis Fibromyalgia Gout Lupus Rheumatic Rheumatology is the medical specialty concerned with the diagnosis and management of disease involving joints, tendons, muscles, ligaments and associated structures (Oxford Medical Diction...
Within medicine, nutrition (the study of food and the effect of its components on the body) has many different roles. Appropriate nutrition can help prevent certain diseases, or treat others. In critically ill patients, artificial feeding by tubes need t...