Enzyme activities, dietary fibre components and rheological properties of wholemeal flours from rye cultivars grown in Finland

2005 ◽  
Vol 85 (8) ◽  
pp. 1350-1356 ◽  
Author(s):  
Marjatta Salmenkallio-Marttila ◽  
Simo Hovinen
Keyword(s):  
Rheological Properties ◽  
Enzyme Activities ◽  
Dietary Fibre

scholarly journals Dietary fibre enzymatic treatment: a way to improve the rheological properties of high-fibre-enriched dough

2013 ◽  
Vol 49 (1) ◽  
pp. 305-307 ◽  
Author(s):  
Alessandra Marti ◽  
Gabriella Bottega ◽  
Maria C. Casiraghi ◽  
Franco Faoro ◽  
Stefania Iametti ◽  
...  
Keyword(s):  
Rheological Properties ◽  
Dietary Fibre ◽  
Enzymatic Treatment ◽  
High Fibre

Rheological properties of gluten and gluten-starch model doughs containing wheat bran dietary fibre

2018 ◽  
Vol 53 (12) ◽  
pp. 2650-2656 ◽  
Author(s):  
Wen Han ◽  
Sen Ma ◽  
Li Li ◽  
Xueling Zheng ◽  
Xiaoxi Wang
Keyword(s):  
Rheological Properties ◽  
Wheat Bran ◽  
Dietary Fibre

scholarly journals Effect of wholemeal oat flour storage on content of dietary fibre and rheological properties

2019 ◽  
Vol 118 (1) ◽  
pp. 67-78
Author(s):  
Piotr Zarzycki ◽  
Emilia Sykut-Domańska ◽  
Aldona Sobota ◽  
Anna Wirkijowska
Keyword(s):  
Rheological Properties ◽  
Dietary Fibre ◽  
Research Study ◽  
Storage Temperature ◽  
Storage Period ◽  
Technological Properties ◽  
Naked Oat ◽  
Water Based ◽  
Oat Flour ◽  
The Individual

The objective of the research study was to determine the effect of wholemeal oat flour storage on changes in a content of total (TDF), soluble (SDF), and insoluble (IDF) dietary fibre and in rheological properties of wholemeal oat flour. The analysis included the flours milled from naked oat grain in a laboratory. Those oat flours were stored for 3 months at temperatures of 20 ºC, 4 ºC and -20 ºC. The apparent viscosity (initial, maximal, final, setback) was determined in 5 % (w/w) water-based suspensions. Regardless of the storage temperature, an increase was reported in the content of IDF as was a decrease in the content of SDF during the 3-month period of storing flour. The widest range of changes in the individual dietary fibre fractions was reported during storage at 20 ºC. The changes in the rheological properties depended on the time and temperature of oat flour storage. The largest changes were reported in the case of the setback value during storage at 20 ºC and 4 ºC. The smallest range of changes in all the rheological properties was found in the flours stored at -20 ºC. During the 3-month period of storing flour the range of changes in the rheological properties was inconsiderable and it did not depend on the contents of individual dietary fibre fractions, therefore it should not have any significant effect on the changes in the technological properties of flours. No unequivocal dependences were reported between the changes in the content of dietary fibre fractions and the rheological properties. During the entire 3-month storage period, the smallest changes occurred in the dietary fibre composition and rheological properties of oat flour during storage at the -20 ºC temperature.

Effects of Dietary Fibre Concentrates on growth performance and digestive enzyme activities of jundiá (Rhamdia quelen)

2015 ◽  
Vol 23 (2) ◽  
pp. 358-366 ◽  
Author(s):  
F.R. Goulart ◽  
L.P. da Silva ◽  
B.B. Loureiro ◽  
T.J. Adorian ◽  
P.I. Mombach ◽  
...  
Keyword(s):  
Growth Performance ◽  
Enzyme Activities ◽  
Dietary Fibre ◽  
Digestive Enzyme ◽  
Rhamdia Quelen ◽  
Digestive Enzyme Activities

High time resolution enzyme cytochemistry of rod outer segment

1990 ◽  
Vol 48 (3) ◽  
pp. 878-879
Author(s):  
Takuma Saito ◽  
Toshihiro Takizawa
Keyword(s):  
Enzyme Activities ◽  
Outer Segment ◽  
Rapid Change ◽  
High Time Resolution ◽  
Visual Cell ◽  
Enzyme Cytochemistry ◽  
Activation Effect ◽  
Rod Outer Segment ◽  
Enzymatic Cascades ◽  
Rapid Drop

Cells and tissues live on a number of dynamic metabolic pathways, which are made up of sequential enzymatic cascades.Recent biochemical and physiological studies of vision research showed the importance of cGMP metabolism in the rod outer segment of visual cell, indicat ing that the photon activated rhodopsin exerts activation effect on the GTP binding protein, transducin, and this act ivated transducin further activates phosphodiesterase (PDEase) to result in a rapid drop in cGMP concentration in the cytoplasm of rod outer segment. This rapid drop of cGMP concentration exerts to close the ion channel on the plasma membrane and to stop of inward current brings hyperpolarization and evokes an action potential.These sequential change of enzyme activities, known as cGMP cascade, proceeds quite rapidly within msec order. Such a rapid change of enzyme activities, such as PDEase in rod outer segment, was not a matter of conventional histochemical invest igations.

Tryptophan-Niacin Metabolism in Rat with Puromycin Aminonucleoside-Induced Nephrosis

2006 ◽  
Vol 76 (1) ◽  
pp. 28-33 ◽  
Author(s):  
Yukari Egashira ◽  
Shin Nagaki ◽  
Hiroo Sanada
Keyword(s):  
Body Weight ◽  
Urinary Excretion ◽  
Enzyme Activities ◽  
Treated Group ◽  
Control Group ◽  
Puromycin Aminonucleoside ◽  
Low Level ◽  
Key Enzyme

We investigated the change of tryptophan-niacin metabolism in rats with puromycin aminonucleoside PAN-induced nephrosis, the mechanisms responsible for their change of urinary excretion of nicotinamide and its metabolites, and the role of the kidney in tryptophan-niacin conversion. PAN-treated rats were intraperitoneally injected once with a 1.0% (w/v) solution of PAN at a dose of 100 mg/kg body weight. The collection of 24-hour urine was conducted 8 days after PAN injection. Daily urinary excretion of nicotinamide and its metabolites, liver and blood NAD, and key enzyme activities of tryptophan-niacin metabolism were determined. In PAN-treated rats, the sum of urinary excretion of nicotinamide and its metabolites was significantly lower compared with controls. The kidneyα-amino-β-carboxymuconate-ε-semialdehyde decarboxylase (ACMSD) activity in the PAN-treated group was significantly decreased by 50%, compared with the control group. Although kidney ACMSD activity was reduced, the conversion of tryptophan to niacin tended to be lower in the PAN-treated rats. A decrease in urinary excretion of niacin and the conversion of tryptophan to niacin in nephrotic rats may contribute to a low level of blood tryptophan. The role of kidney ACMSD activity may be minimal concerning tryptophan-niacin conversion under this experimental condition.

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