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The flow of non-starch polysaccharides along the gastrointestinal tract of broiler chickens fed either a wheat-or maize-based diet

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Animal Nutrition 2022年第2期9卷 138-142页

作者： Eunjoo Kim Natalie K.Morgan Amy FMoss Lily Li Peter Ader Mingan Choct School of Environmental and Rural Science University of New EnglandArmidaleNSW 2351Australia BASF South East Asia 038987Singapore BASF SE 68623LampertheimGermany

The present study characterised the types and amounts of non-starch polysaccharides(NSP)remaining undigested along the gastrointestinal tract(GIT)of broiler chickens offered a typical wheat-or maizebased diet.One-day old Cobb 500 mixed-sex chicks were assigned to 24 pens,with 10 birds/pen and 12 pens/treatment.Birds were offered the experimental diets in 3 phases(starter,day 0 to 10;grower,day 11 to 24 and finisher,day 25 to 35).Excreta and digesta samples from the crop,gizzard,duodenum,jejunum,ileum and caeca were collected at 12 and 35 days of age,and analysed for the NSP flow.The wheat-based diet contained higher levels of soluble NSP than the maize-based diet,whereas insoluble NSP levels were similar between the 2 diets.Detailed analysis of NSP constituents revealed that arabinoxylans were the primary NSP in the wheat-based diet,mostly in insoluble form.Pectins were the predominant NSP in the maize-based diet,followed by arabinoxylans.Overall,birds offered the wheatbased diet presented higher levels of soluble NSP remaining in all gut sections compared to birds offered the maize-based diet,at both 12 and 35 days of age(P<0.050).Accumulation of insoluble NSP in the gizzard was noted in birds fed both diets,but was more pronounced in birds offered the maize-based diet compared to the wheat-based diet,at both 12 and 35 days of age(P<0.001).The present study highlights marked differences in the amounts and types of NSP delivered to the different gut sections when feeding wheat-compared to maize-based diets,particularly in the gizzard and the lower GIT of birds.

关键词： Broiler chickens Soluble fibre Insoluble fibre non-starch polysaccharides

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Effects of non-starch polysaccharides from pure wheat malt beer on beer quality,in vitro antioxidant,prebiotics,hypoglycemic and hypolipidemic properties

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Food Bioscience 2022年第3期47卷 1202-1212页

作者： Zhaolin Song Miaomiao Li Jinhua Du Kaili Zhang College of Food Science and Engineering Shandong Agricultural UniversityTai'anShandong271018China Shandong Taishan Beer Co.Ltd. Tai'anShandong271000China College of Food Science and Engineering Shandong Agriculture and Engineering UniversityZiboShandong255300China

Pure wheat malt beer (PWMB) with potentially functional properties may attract consumer interest.To explore the functional properties of non-starch polysaccharides (NSPs) in PWMB,NSPs were extracted from PWMB and separated into PWMB non-starch polysaccharides-1 (PNSP-1) and PWMB non-starch polysaccharides-2 (PNSP-2) by Q-Sepharose Fast Flow column.PNSP-1 exhibited more effects on increasing the viscosity of beers,which had higher purity of 92.58% containing 88.53% arabinoxylan with arabinose/xylose (A/X) 0.60 and 2.78% β-glucan but no glucomannan and mannan;while PNSP-2 showed greater effects on promoting beer haze and foam retention,which had more diverse NSPs including 46.03% arabinoxylan with A/X 1.13,41.47% arabinogalactan,10.26% glucomannan,and 2.70% mannan but no β-glucan.Diversity of sugar composition resulted in a better antioxidant capacity of PNSP-2.NSPs proliferated Lactobacillus casei LC6117 and LC0331,but did not promote L.plantarum LP-28 and L.fermentium LF-2H.PNSP-2 was also utilized by L.rhamnosus SRG.PNSP-2 had better effects on prebiotics activities.PNSP,PNSP-1 and PNSP-2 all exhibited mild inhibitory effects on α-glucosidase and lipase but not on α-amylase,and showed a binding capacity to fat and cholesterol.This work is of great reference significance for improving the viscosity,haze,foam retention and health value of wheat beer.

关键词： non-starch polysaccharides Pure wheat malt beer Haze Antioxidant Prebiotics Enzyme inhibitory activity

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Pattern of non-starch polysaccharide digestion along the gut of the pig:Contribution to available energy

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Animal Nutrition 2015年第3期1卷 160-165页

作者： David J. Cadogan Mingan Choct Feedworks Pty Ltd School of Environmental and Rural Science University of New England

We investigated the pattern of non-starch polysaccharide(NSP) digestion along the gut of pigs fed two different wheats, which were offered with or without xylanase supplementation. The two wheats used were pre-characterised before the experiment on the basis of low and normal feed intake of young pigs.Wheat type significantly influenced feed intake and growth rate in the first 7 days, however, by day 14 the only significant effect of wheat type was on growth rate. Xylanase supplementation increased the growth performance of pigs fed the poor quality wheat to a level similar to those fed the normal wheat. It also increased the daily gain of pigs fed the normal wheat. Wheat type had no significant effect on the digestibility of dry matter(DM), energy, free sugars or the different fractions of NSP in the duodenum,ileum or in the faeces. The duodenal gross energy digestibility values for the low and high performance diets were -27.4 and -47.5%, respectively, and xylanase supplementation significantly increased the digestibility of energy back to positive levels. Dry matter digestibility values followed a similar pattern. In the duodenum, xylanase increased(P polysaccharides. This suggests that soluble NSP substantially increase endogenous losses. The absence of differences in the digestibility of the measured NSP between the two wheat samples suggests that the structures of the NSP, rather than just their amount and solubility, are important for the anti-nutritional properties of NSP in pig diets.

关键词： Wheat non-starch polysaccharides Xylanase Pigs

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