Contents of starch and non-starch polysaccharides in barley varieties of different origin

Holtekjølen, Ann Katrin; Uhlen, Anne Kjersti; Bråthen, Erland; Sahlstrøm, Stefan; Knutsen, Svein Halvor

doi:10.1016/j.foodchem.2004.11.022

Cited by 154 publications

(121 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Mean AX content of the present barley genotypes (6.8%) was in the lower range of values for AX content reported by Holtekjølen et al (2006) for hulled and hulless barley (6.5% to 13.8%). According to Holtekjølen et al (2006), differences in AX content between the present genotypes and literature values can possibly be attributed to differences in growing conditions (e.g. different growing locations).…”

Section: Discussioncontrasting

confidence: 71%

“…As NSP values of the current genotypes were greater than in literature, the overall lower SID of AA in the present experiment compared to values reported by NRC (2012) may be due to the elevated NSP contents coupled with their negative effects on digestibility. Among the NSP fraction, the major components in barley are β-glucan and AX; β-glucan is confined to the aleurone layer and the endosperm, whereas AX is present in endosperm, aleurone but also in the hull layer (Holtekjølen et al, 2006). In the present study, mean β-glucan content was 1.1% units greater than reported values for hulled barley but still within the range of values for hulless barley (Jha et al, 2010).…”

Section: Discussioncontrasting

confidence: 55%

See 1 more Smart Citation

Standardized ileal digestibility of amino acids in eight genotypes of barley fed to growing pigs

Spindler

Mosenthin

Rosenfelder

et al. 2016

animal

View full text Add to dashboard Cite

To determine chemical composition, physical characteristics and standardized ileal digestibility (SID) of CP and amino acids (AA) in eight current hulled barley genotypes, an experiment with growing pigs has been conducted. These genotypes included Yool, Campanile, Lomerit, Travira, Anisette, Canberra, Metaxa and Fridericus. Growing barrows with an average initial BW of 30 ± 2 kg were surgically fitted with simple T-cannulas at the distal ileum, and allotted to an 8 × 9 Youden square design with eight periods of 6 days each and nine pigs. Barley was the sole dietary source of CP and AA. On average, the eight genotypes contained on as-fed basis 10.7% CP, 15.2% total non-starch polysaccharides (NSP), 17.1% NDF and 4.1% β-glucan, and had a mean test weight (TW) of 72.2 kg/hl. The SID of CP in the barley genotypes varied from 69% to 74%, and was greater ( P < 0.01) for genotypes Travira, Anisette and Metaxa compared to Yool and Campanile. Standardized ileal digestibility of Lys, Met and Trp ( P < 0.05) but not of Thr differed between genotypes. Moreover, barley genotypes differed in their standardized ileal digestible content (cSID) of CP and AA. Furthermore, SID and cSID of CP and most AA linearly decreased ( P < 0.05) with increasing NDF and total sugar content. Standardized ileal digestibility of CP and some AA and cSID of CP and most AA decreased linearly with increasing TW ( P < 0.05). Additionally, SID and cSID of CP and AA of most barley genotypes were lower when compared to tabulated values. In conclusion, a comprehensive database on chemical composition and SID of CP and AA in eight current barley genotypes has been made available. However, as present SID values are lower compared to feed tables, adjustments are required to minimize the risk of overestimating the actual protein value of barley for pigs.

show abstract

Section: Discussioncontrasting

confidence: 71%

Section: Discussioncontrasting

confidence: 55%

Standardized ileal digestibility of amino acids in eight genotypes of barley fed to growing pigs

Spindler

Mosenthin

Rosenfelder

et al. 2016

animal

View full text Add to dashboard Cite

show abstract

“…The outer layer of BlR is enriched with phytochemicals and these bioactive were broadly divided into polar (phenolic acids, flavonoids, anthocyanins) and non-polar components (tocopherols, tocotrienols, γ-oryzanol, and sterols) (Patel & Naik. 2004;Zhou et al, 2004;Holtekjølen, et al, 2006). Studies have proven that the active components of RB improve the human health because of the high content of antioxidants (Laokuldilok et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

The influence of extraction methods on composition and antioxidant properties of rice bran oil

et al. 2015

View full text Add to dashboard Cite

The current study was employed to assess the influence of the different extraction methods on total tocols, γ-oryzanol content, and antioxidant properties of Chiang Mai Black rice, Mali Red rice, and Suphanburi-1 Brown rice bran oil. Rice bran oil (RBD) was extracted by Hexane, Hot pressed, Cold pressed, and Supercritical Fluid Extraction (SFe) methods. High yield of RBD was extracted by hexane and SFe methods. Total and subgroups of tocols, and γ-oryzanol content were determined by HPLC. The hexane extracted sample accounts for high content of γ-oryzanol and tocols. Besides, all of RBD extracts contain a significantly high amount of γ-tocotrienol. In vitro antioxidant assay results indicated that superior quality of oil was recovered by hexane extraction. The temperature in the extraction process also affects the value of the oil. Superior quality of oil was recovered by hexane extraction, in terms of phytochemical contents and antioxidant properties compared to other tested extraction methods. Further, thorough study of factors compromising the quality and quantity of RBD recovery is required for the development of enhanced functional foods and other related products.Keywords: rice bran oil; tocols; γ-oryzanol; antioxidants.Practical Application: Influence of different extraction methods for the recovery of the principal compounds from RBD has been demonstrated.

show abstract

“…The major components in barley fibers are b-glucan and the arabinoxylans, located in the cell wall of the endosperm and the aleurone layer (Holtekjolen et al, 2006). The fermentation rate of these carbohydrates in the intestinal tract will thus depend on their composition, form and physical properties (Le Goff et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Barley and oat cultivars with diverse carbohydrate composition alter ileal and total tract nutrient digestibility and fermentation metabolites in weaned piglets

Jha

Rossnagel

Pieper

et al. 2010

Animal

View full text Add to dashboard Cite

An experiment was conducted to evaluate the effects of cereal carbohydrate form (isolated v. cereal matrix) and level, especially mixed-linked b-glucan (hereafter referred to as b-glucan) and starch amylase/amylopectin ratio on nutrient digestibility and fermentation parameters in the intestines of weaned pigs. Four hulless barley cultivars containing varying b-glucan levels (41 to 84 g/kg) were compared with hulled barley, supplemented or not with a b-glucan concentrate (BBG; 270 g/kg b-glucan) and two oat cultivars for digestibility and fermentation metabolites. Seventy-two weaned piglets (BW 5 12.8 6 1.9 kg) were assigned to one of nine diets composed of 815 g/kg cereal, 60 g/kg whey, 90 g/kg soy protein isolate and 35 g/kg minerals. After 15 days, the pigs were killed, and digesta collected from ileum and colon were analyzed for proximate nutrients, short-chain fatty acids (SCFAs), lactic acid (LA) and ammonia. Ileal and total tract digestibility of proximate nutrients and non-starch polysaccharides (NSPs) were determined using HCl-insoluble ash as a marker. Organic matter (OM) ileal digestibility was greater (P , 0.05) for diets based on hulless barley (77% 6 1.1% on average), as compared with hulled barley (64% 6 1.4%) and oat (58% 6 1.5%). Similar trends were found for total tract OM digestibility, varying from 90% 6 0.3% for hulless barley to 67% 6 0.4% for oat, on average. NSP digestibility differed (P , 0.05) within and between cereal types, ranging from 20% (hulled barley plus 163 g/kg BBG or , 40 g/kg b-glucan) to 51% (SB94893 hulless barley cultivar with high b-glucan and high amylose ratio) at the ileum and from 44% (hulled barley) to 84% (SB94893 cultivar) at the total tract level. No dietary effect (P . 0.05) was found for SCFA concentration in ileal contents, whereas in colonic contents, SCFA was lower in pigs fed oat (P , 0.001). LA concentration was greater (P , 0.001) in the colon of pigs fed hulless barley than in pigs fed hulled barley and oat. Expressed per kg carbohydrate (NSP 1 starch) fermented, the ammonia concentration at the colon was lowest for hulled barley diets (supplemented with b-glucan) and the highest for oat diets. In conclusion, the interaction of both form and level of b-glucan impacted nutrient digestibility and fermentation. Hulless barleys with high soluble NSP such as b-glucan and resistant starch yielded, in general higher SCFA and LA and lower ammonia. Hulless barleys may, therefore, have potential for use in feeding strategies designed to improve gut health in pigs.

show abstract

Contents of starch and non-starch polysaccharides in barley varieties of different origin

Cited by 154 publications

References 37 publications

Standardized ileal digestibility of amino acids in eight genotypes of barley fed to growing pigs

Standardized ileal digestibility of amino acids in eight genotypes of barley fed to growing pigs

The influence of extraction methods on composition and antioxidant properties of rice bran oil

Barley and oat cultivars with diverse carbohydrate composition alter ileal and total tract nutrient digestibility and fermentation metabolites in weaned piglets

Contact Info

Product

Resources

About