In vitro binding of calcium, iron and zinc by non-starch polysaccharides

Debon, Stéphane J.J.; Tester, Richard F.

doi:10.1016/s0308-8146(00)00312-5

Cited by 128 publications

(101 citation statements)

References 28 publications

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“…The neutral detergent fiber (NDF) was determined as described by Van Soest et al (1991) and expressed on ash-free basis. The moisture and ash contents were determined based on methods reported by Debon and Tester (2001). Content of non-fiber carbohydrates (NFC) was determined using the formula: NFC = 100 -(CP ?…”

Section: Preparation Of Dried Lemon Pulp and Analysismentioning

confidence: 99%

Effect of dietary graded levels of dried lemon (citrus aurantifulia) pulp on performance, intestinal morphology, and humoral immunity in broiler chickens

Basir

Toghyani

2017

Int J Recycl Org Waste Agricult

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Purpose Dried lemon pulp (DLP) is a by-product of fruit processing industry and is containing active antioxidants such as flavonoids, isoflavones, and flavones. Thus, current experiment was carried out to evaluate the effect of dietary graded levels of DLP on performance, intestinal morphology, and humoral immunity in broiler chickens. Methods Accordingly, a total of 280-day-old broiler chickens (Ross 308) were assigned to 4 treatments and 5 replicates of 14 chicks each. Dietary treatments included control (CON) with no additive as well as DLP1: 2.5, 5, and 7.5%; DLP2: 5, 7.5, and 10%; and DLP3: 7.5, 10, and 12% in starter, growing, and finisher phases, respectively. Subsequently, performance, intestinal morphology, and humoral immunity were evaluated throughout the experiment. Results Body weight of chickens decreased when using graded levels of DLP during different periods of the experiment as compared with CON (P \ 0.05). Also, daily weight gain was lower in those supplemented by 7.5% DLP than CON across finishing period (P \ 0.05). Therefore, feed conversion ratio of broilers was impaired when using graded levels of DLP across the entire production phase compared to the birds in CON group (P \ 0.05). Antibody titer against influenza disease virus and sheep red blood cells decreased when using DLP3 and DLP2, respectively (P \ 0.05). Jejunal crypt depth decreased in chickens fed on DLP3 compared with control. Conclusion Dietary graded levels of DLP modified intestinal segments while deteriorated growth performance of chickens. Furthermore, DLP3 decreased jejunal crypt depth. Thereby, the use of DLP particularly at high levels is not recommended.

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Section: Preparation Of Dried Lemon Pulp and Analysismentioning

confidence: 99%

Effect of dietary graded levels of dried lemon (citrus aurantifulia) pulp on performance, intestinal morphology, and humoral immunity in broiler chickens

Basir

Toghyani

2017

Int J Recycl Org Waste Agricult

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“…This may occur either extracellularly prior to depolymerization, or intracellularly after hydrolysis of polymer chains and uptake by the bacterial cells. One reason for the Ca 2ϩ addition is that 0.87-30.3 mg Ca 2ϩ per g dry weight can be complexed by various polysaccharides at neutral pH (Debon and Tester 2001). This means that 0.2175-7.575 mmol Ca 2ϩ can be bound within 1 liter of hydrated polysaccharides (assuming a hydrated EPS matrix with 1 wt % polysaccharide molecules, which are, for simplification, composed of hexose monomers).…”

Section: Modeling Of Factors Driving Caco 3 Precipitation In Satonda mentioning

confidence: 99%

Microbialite Formation in Seawater of Increased Alkalinity, Satonda Crater Lake, Indonesia

Arp

Reimer

Reitner

2003

Journal of Sedimentary Research

198

183

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The crater lake of the small volcanic island Satonda, Indonesia, is unique for its red-algal microbial reefs thriving in marinederived water of increased alkalinity. The lake is a potential analogue for ancient oceans sustaining microbialites under open-marine conditions. Current reef surfaces are dominated by living red algae covered by non-calcified biofilms with scattered cyanobacteria and diatoms. Minor CaCO 3 precipitates are restricted to the seasonally flooded reef tops, which develop biofilms up to 500 m thick dominated by the cyanobacteria Pleurocapsa, Calothrix, Phormidium, and Hyella. Microcrystalline aragonite patches form within the biofilm mucilage, and fibrous aragonite cements grow in exopolymer-poor spaces such as the inside of dead, lysed green algal cells, and reef framework voids. Cementation of lysed hadromerid sponge resting bodies results in the formation of ''Wetheredella-like'' structures. Hydrochemistry data and model calculations indicate that CO 2 degassing after seasonal mixis can shift the carbonate equilibrium to cause CaCO 3 precipitation. Increased concentrations of dissolved inorganic carbon limit the ability of autotrophic biofilm microorganisms to shift the carbonate equilibrium. Therefore, photosynthesis-induced cyanobacterial calcification does not occur. Instead, passive, diffusioncontrolled EPS-mediated permineralization of biofilm mucus at contact with the considerably supersaturated open lake water takes place. In contrast to extreme soda lakes, the release of Ca 2؉ from aerobic degradation of extracellular polymeric substances does not support CaCO 3 precipitation in Satonda because the simultaneously released CO 2 is insufficiently buffered.Subfossil reef parts comprise green algal tufts encrusted by microstromatolites with layers of fibrous aragonite and an amorphous, unidentified Mg-Si phase. The microstromatolites probably formed when Lake Satonda evolved from seawater to Ca 2؉ -depleted raised-alkalinity conditions because of sulfate reduction in bottom sediments and pronounced seasonality with deep mixing events and strong CO 2 degassing. The latter effect caused rapid growth of fibrous aragonite, while Mg-Si layers replaced the initially Mg-calcite-impregnated biofilms. This could be explained by dissolution of siliceous diatoms and sponge spicules at high pH, followed by Mg-calcite dissolution and Mg-silica precipitation at low pH due to heterotrophic activity within the entombed biofilms.

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“…Consequently, also polysaccharides are capable as O-ligate metal ions [12][13][14][15][16][17][18][19][20][21][22][23][24][25][26][27]. Particular attention has been paid to starch as the ligand of metal ions.…”

Section: Introductionmentioning

confidence: 99%

Starch–metal complexes and their rheology

Ciesielski¹,

Krystyjan²

2009

E-Polymers

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Changes in conductivity of 5 w/w% starch gels was studied on their titration with 0.1 M aqueous solutions of selected metal salts. Starch gels usually trapped around 10 mg metal ions per 1 g starch [Co(II), Cu(II), Fe(III), Ni(II)] and that value was only slightly dependent on starch origin (amaranthus, corn, potato, tapioca, waxy corn). Among salts studied (acetates, chlorides, nitrates) FeCl 3 and NiCl 2 were likely to be used because they hydrolyzed increasing conductivity of the solutions and formed micelles of corresponding hydroxides adhering to starch micelles and increasing amount of trapped metal. Addition of metal salts to starch gels had a devastating effect on pseudoplasticity and viscosity of starch gels and only potato starch gel was to a certain extent, exceptional in that respect.

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In vitro binding of calcium, iron and zinc by non-starch polysaccharides

Cited by 128 publications

References 28 publications

Effect of dietary graded levels of dried lemon (citrus aurantifulia) pulp on performance, intestinal morphology, and humoral immunity in broiler chickens

Effect of dietary graded levels of dried lemon (citrus aurantifulia) pulp on performance, intestinal morphology, and humoral immunity in broiler chickens

Microbialite Formation in Seawater of Increased Alkalinity, Satonda Crater Lake, Indonesia

Starch–metal complexes and their rheology

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