| Autor: |
Zangaro CA; Department of Animal Science , South Dakota State University , Brookings , South Dakota 57006 , United States., Patterson R; Canadian Bio-Systems Inc. , Calgary , Alberta T2C 0J7 , Canada., Gibbons WR; Department of Biology & Microbiology , South Dakota State University , Brookings , South Dakota 57006 , United States., Woyengo TA; Department of Animal Science , South Dakota State University , Brookings , South Dakota 57006 , United States. |
| Jazyk: |
angličtina |
| Zdroj: |
Journal of agricultural and food chemistry [J Agric Food Chem] 2018 Sep 12; Vol. 66 (36), pp. 9409-9417. Date of Electronic Publication: 2018 Aug 29. |
| DOI: |
10.1021/acs.jafc.8b01943 |
| Abstrakt: |
Corn DDGS is poorly digested by pigs. Pretreatment or predigestion of whole stillage (WS; slurry material from which DDGS is derived) can potentially improve corn DDGS digestibility. Thus, a study was conducted to determine the effects of pretreating WS with heat (160 °C and 70 psi for 20 min) alone or in combination with citric acid (10 g/L; CA), sulfuric acid (90 mM; H 2 SO 4 ), or ammonia (1%), without or with subsequent multienzymatic hydrolysis for 24 h, on porcine digestibility. Dried untreated, heat-pretreated, CA-pretreated, H 2 SO 4 -pretreated, and ammonia-pretreated WS contained 23, 21, 12 19, and 18% total nonstarch polysaccharides, respectively. Pretreatment increased in vitro digestibility of dry matter of WS by ∼11 (CA) to ∼15% units (ammonia). Multienzyme hydrolysis increased in vitro digestibility of dry matter of WS by ∼6 (ammonia-treated WS) to ∼18% units (untreated WS). Thus, pretreatment or predigestion can improve the digestibility of WS and hence the resulting DDGS. |
| Databáze: |
MEDLINE |
| Externí odkaz: |
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