1989
DOI: 10.1016/0377-8401(89)90030-8
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Effect of sodium silicate on forage digestion with rumen fluid of goats or cellulase using culture solutions adjusted for pH

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Cited by 13 publications
(7 citation statements)
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“…Rice straw is a unique low-quality forage in that it contains much more silica (12% to 16%) compared to other straws, which typically have 3% to 5% silica (Jackson, 1977). Soluble silica in the rumen is known to inhibit cellulolytic digestion which leads to a depression in forage digestion; this is theorized to occur via a direct enzymatic depression by the silica and a reduction in the availability of minerals to the rumen microbes (Shimojo and Goto, 1989). Therefore, this study provides a better understanding of the rumen ecosystem comparing these two sub-species under a diet with low fermentation potential, which was previously lacking in the rumen microbial ecology literature.…”
Section: Discussionmentioning
confidence: 98%
“…Rice straw is a unique low-quality forage in that it contains much more silica (12% to 16%) compared to other straws, which typically have 3% to 5% silica (Jackson, 1977). Soluble silica in the rumen is known to inhibit cellulolytic digestion which leads to a depression in forage digestion; this is theorized to occur via a direct enzymatic depression by the silica and a reduction in the availability of minerals to the rumen microbes (Shimojo and Goto, 1989). Therefore, this study provides a better understanding of the rumen ecosystem comparing these two sub-species under a diet with low fermentation potential, which was previously lacking in the rumen microbial ecology literature.…”
Section: Discussionmentioning
confidence: 98%
“…Earlier studies showed a negative effect of silica on forage digestibility in ruminants (Carlisle et al 1977;Balasta et al 1989). This negative effect may be due to the physical barrier formed by the external silica layer, as proposed by Kawamura et al (1973) and Harbers et al (1981), or to an inhibiting action on hydrolysing enzymes ; some authors (Smith & Urquhart 1975;Shimojo & Goto 1989) have found the in vitro digestibility of forages to be negatively affected by increasing amounts of added soluble silica. In a previous study on European rice straws (Agbagla-Dohnani et al 2001), no relationship was found between microbial degradation and ash or silica contents.…”
Section: Introductionmentioning
confidence: 94%
“…The study on the saccharification of untreated and pretreated rice straw by RSC1 cellulase showed high amounts of reducing sugar production with 2.5% sodium hydroxide treatment. Sodium hydroxide treatment has been reported to remove lignin and hemicellulose and forms soluble silicates . The high amount of reducing sugars produced from sodium hydroxide‐pretreated substrate (Fig.…”
Section: Discussionmentioning
confidence: 99%
“…Effect of initial medium pH and temperature on cellulase production pH and temperature effects on cellulase production were determined using the aforementioned solid medium with casein hydrolyzate and urea as nitrogen source with different initial pH values (4, 5, 6, 7, and 8) and incubated at different temperatures (25,30,35, and 40°C), see Supporting Information Fig. S1.…”
Section: Raw Materialsmentioning
confidence: 99%