Correlations of Phenolic Acids and Xylose Content of Cell Wall with In Vitro Dry Matter Digestibility of Three Maturing Grasses

Burritt, Elizabeth A; Bittner, Allan S.; Street, Joseph C.; Anderson, M.J.

doi:10.3168/jds.s0022-0302(84)81425-3

Cited by 75 publications

(44 citation statements)

References 15 publications

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“…Digestibility has been shown to decrease as xylose content increases in maturing cool-season grasses. 33 Arabinose concentrations, which were approximately one-tenth of xylose, tended to be higher in the blade, midrib and sheath for lax leaf inbreds compared with public inbreds (data not shown). Although xylose concentration was consistently lower and uronic acid concentration was consistently higher in lax leaf inbred tissues, multiple regression of digestibility on cell wall composition traits indicated that neither xylose nor uronic acid concentrations improved the model's ability to predict digestibility.…”

Section: Results and Discussion Experimentsmentioning

confidence: 99%

Lax leaf maize: cell wall composition and nutritional value

Falkner

Coors

Ostrander

et al. 2000

J. Sci. Food Agric.

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Section: Results and Discussion Experimentsmentioning

confidence: 99%

Lax leaf maize: cell wall composition and nutritional value

Falkner

Coors

Ostrander

et al. 2000

J. Sci. Food Agric.

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“…These 2 acids could therefore cross-link lignin and hemicellulose (Morrison, 1974;Burritt et al, 1984;Scalbert et al, 1985;Jung, 1989;liyama et al, 1990;Kondo et al, 1990). For instance, Helm and Ralph (1991) (1973) found that the bm1 stalks were poorer in AOAC lignin content (sulphuric acid lignin in dry matter).…”

Section: Introductionmentioning

confidence: 99%

Brown-midrib genes of maize: a review

1993

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Summary — The efficiency of forage for ruminant animals primarily depends on cell-wall constituent content, mostly cellulose and hemicellulose, and on their digestibility, mostly reduced by lignin incrustration. Four brown-midrib genes (bm1, bm2, bm3 and bm4) have been described in maize. Brown-midrib plants were described as having a lower lignin content than normal genotypes; the ratios of hydroxycinnamic acids released after alkaline hydrolysis, and the ratios between monomeric units released after alkaline nitrobenzene oxidation or thioacidolysis also differed in normal and brown-midrib plants. The bm3 gene, allowing an important decrease of lignin content, and a better improvement in plant digestibility, was also the most studied. When cattle were fed bm3 plants, intake and digestibility were higher compared to normal isogenic ones, and the rate of digestion was also higher. However, the agronomical value of the brown-midrib genotypes was distinctively lower than that of their normal isogenic counterparts and this was particularly notable on the bm3 gene. This observation also appeared to be genotype-specific, suggesting the possibility of producing brown-midrib

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“…The major non-core lignin phenolic acids are pcoumaric acid (CA) and ferulic acid (FA). According to Burritt et al (Burritt et al, 1984) and Jung (1989), the ratio of CA to FA present in non-core lignin has a strong negative impact on biomass digestibility. The difference in alkali concentration might be attributed to their pcoumaric to ferulic acids ratio apart from lignin content.…”

Section: Optimization and Validationmentioning

confidence: 99%