Effects of dietary cellulose supplements on the body composition and cholesterol metabolism of albino rats

Sundaravalli, O. E.; Shurpalekar, K. S.; Rao, M Narayana

doi:10.1021/jf60173a053

Cited by 27 publications

(11 citation statements)

References 9 publications

(11 reference statements)

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“…Some dietary fibers such as pectin, lignin, and those contained in bran and alfalfa conjugate with bile acids, resulting in increased bile acid excretion and an associated malabsorption of cholesterol and other lipids (Eastwood and Hamilton, 1968;Eastwood et al, 1976;Kritchevsky and Story, 1974;Story and Kritchevsky, 1976). High concentrations of dietary cellulose have also been shown to reduce elevated blood lipids induced by cholesterol-feeding (Sundaravalli et al, 1971;Ranhotra et al, 1976), although in vitro studies indicate that cellulose does not bind bile acids (Balmer and Zilversmit, 1974;Kritchevsky and Story, 1974). Van Berestyn et al (1979) observed higher plasma triglycerides in rats fed diets containing cellulose than in rats fed stock diets containing added butterfat.…”

Section: Discussionmentioning

confidence: 99%

Dietary Cellulose, Wheat Bran, and Fish Meal in Relation to Hepatic Lipids, Serum Lipids, and Lipid Excretion in Laying Hens

Cherry

Jones

1982

Poultry Science

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Isonitrogenous diets supplemented with 10% cellulose, 10% wheat bran, or 10% fish meal were fed to White Leghorn hens from 245 to 322 days of age. Neither body weights nor egg production of the hens fed these diets differed significantly from those of controls fed a corn-soybean meal basal diet. Supplemental fish meal and wheat bran did not significantly affect liver weight or liver lipids, although serum lipids of the hens fed the diet containing fish meal were significantly lower than those of the hens fed the basal diet. The hens fed the cellulose-supplemented diet, however, exhibited significantly decreased liver weights, serum lipids, and liver lipids, which were accompanied by a significant increase in excreta lipid. It is speculated that lipid excretion may be involved in some dietary induced alterations in the hepatic lipid concentration of laying chickens.

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Section: Discussionmentioning

confidence: 99%

Dietary Cellulose, Wheat Bran, and Fish Meal in Relation to Hepatic Lipids, Serum Lipids, and Lipid Excretion in Laying Hens

Cherry

Jones

1982

Poultry Science

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“…This is clearly different from both the wellknown fact 16) that crude fiber in diet prevents carcass fat deposition and the report of PETERSON et al17) that addition of 12% and 24% cellu flour to semi-purified diet depressed carcass fat deposition in growing chicks. In rats, SUNDRAVALLI et al 18) have reported that addition of microcrystallin cellulose in a 26% casein diet at a level of 20% significantly reduced carcass fat content. However, they did not resolve whether the depressed carcass fat was due to cellulose in diet or decrease of energy intake.…”

Section: Discussionmentioning

confidence: 99%

Effects of Graded Levels of Dietary Cellulose on Carcass Lipid Deposition in Force-Fed Chicks

Akiba¹,

Satoh²,

Matsumoto³

1979

Nihon Chikusan Gakkaiho

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Effects of graded levels of dietary cellulose on liver lipid and carcass lipid accumulation are investigated in 14-day old Single-Comb White Leghorn male chicks given fiber-free diet by force-feeding. Cellulose was supplemented at the levels of 1%, 2% and 8% in the diet. Plasma lipid concentration had a tendency to decrease in inverse proportion to the increase of dietary cellulose. Feeding of cellulose at 1%, 2% and 8% levels extensively depressed liver lipid accumulation, although no significant difference was observed among the depressing effects of graded levels of dietary cellulose. Lipid deposition in carcass minus liver was slightly, but not significantly, elevated, and the ratio of liver to total carcass in lipid deposition was significantly lowered by the feeding of cellulose. These results suggest that dietary cellulose affects the distribution and mobilization of lipid in chicks. Jap. J. Zootech. Sci., 50 (8): [592][593][594][595][596][597] 1979 It has been established in chicks that liver is the main site of fatty acid synthesis1-3) and that it plays an important role in lipid metabolism. Adipose tissue, on the other hand, is the main site of lipid storage and its main function is that of accumulation, rather than synthesis, of lipid4). Several factors influencing liver lipid accumulation and fatty-liver in chicks have been reviewed by SUNDE5), NESHEIM and IVY6), and IVY and NESHEIM7). Recently, we reported that liver lipid accumulation was extensively increased by force-feeding of excess food8,9) and was significantly reduced by feeding of dietary fibers such as cellulose, pectin and konjac mannan9-11) at the level of 4% in diet. In those reports, however, it was not ascertained whether addition of cellulose below 4% could depress the liver and carcass lipid accumulation.The objective of this experiment is to investigate the effects of graded levels of dietary cellulose on liver lipid accumulation, carcass lipid accumulation and distribution of lipid in the carcass of force-fed chicks. Materials and MethodsFourteen-day old Single-Comb White Leghorn male chicks raised on a commercial chick starter were housed individully in wire cages under controlled light (14 hours

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“…DES, the most hydrophobic hormone (see Table 1, log K OW 5.07) adsorbed the least for both membranes studied, while the cellulose acetate membrane adsorbed less than the polyamide membrane. This can be explained by the fact that cellulose has practically no binding capacity for steroids [166,167]. In the presence of natural organic matter a clear trend between hydrophobicity and adsorption of trace contaminants (e.g.…”

Section: Micropollutant Sorption By Different Polymer Materialsmentioning

confidence: 99%

Micropollutant sorption to membrane polymers: A review of mechanisms for estrogens

Schäfer

Akanyeti

Semiao

2011

Advances in Colloid and Interface Science

247

140

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Organic micropollutants such as estrogens occur in water in increasing quantities from predominantly anthropogenic sources. In water such micropollutants partition not only to surfaces such as membrane polymers but also to any other natural or treatment related surfaces. Such interactions are often observed as sorption in treatment processes and this phenomenon is exploited in activated carbon filtration, for example. Sorption is important for polymeric materials and this is used for the concentration of such micropollutants for analytical purposes in solid phase extraction. In membrane filtration the mechanism of micropollutant sorption is a relatively new discovery that was facilitated through new analytical techniques. This sorption plays an important role in micropollutant retention by membranes although mechanisms of interaction are to date not understood. This review is focused on sorption of estrogens on polymeric surfaces, specifically membrane polymers. Such sorption has been observed to a large extent with values of up to 1.2 ng/cm(2) measured. Sorption is dependent on the type of polymer, micropollutant characteristics, solution chemistry, membrane operating conditions as well as membrane morphology. Likely contributors to sorption are the surface roughness as well as the microporosity of such polymers. While retention-and/or reflection coefficient as well as solute to effective pore size ratio-controls the access of such micropollutants to the inner surface, pore size, porosity and thickness as well as morphology or shape of inner voids determines the available area for sorption. The interaction mechanisms are governed, most likely, by hydrophobic as well as solvation effects and interplay of molecular and supramolecular interactions such as hydrogen bonding, π-cation/anion interactions, π-π stacking, ion-dipole and dipole-dipole interactions, the extent of which is naturally dependent on micropollutant and polymer characteristics. Systematic investigations are required to identify and quantify both relative contributions and strength of such interactions and develop suitable surface characterisation tools. This is a difficult endeavour given the complexity of systems, the possibility of several interactions taking place simultaneously and the generally weaker forces involved.

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Effects of dietary cellulose supplements on the body composition and cholesterol metabolism of albino rats

Cited by 27 publications

References 9 publications

Dietary Cellulose, Wheat Bran, and Fish Meal in Relation to Hepatic Lipids, Serum Lipids, and Lipid Excretion in Laying Hens

Dietary Cellulose, Wheat Bran, and Fish Meal in Relation to Hepatic Lipids, Serum Lipids, and Lipid Excretion in Laying Hens

Effects of Graded Levels of Dietary Cellulose on Carcass Lipid Deposition in Force-Fed Chicks

Micropollutant sorption to membrane polymers: A review of mechanisms for estrogens

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