PMID- 22446771
OWN - NLM
STAT- MEDLINE
DCOM- 20120808
LR  - 20120409
IS  - 1873-3557 (Electronic)
IS  - 1386-1425 (Linking)
VI  - 92
DP  - 2012 Jun 15
TI  - Relationship of carbohydrate molecular spectroscopic features in combined feeds 
      to carbohydrate utilization and availability in ruminants.
PG  - 225-33
LID - 10.1016/j.saa.2012.01.070 [doi]
AB  - To date, there is no study on the relationship between carbohydrate (CHO) 
      molecular structures and nutrient availability of combined feeds in ruminants. 
      The objective of this study was to use molecular spectroscopy to reveal the 
      relationship between CHO molecular spectral profiles (in terms of functional 
      groups (biomolecular, biopolymer) spectral peak area and height intensity) and 
      CHO chemical profiles, CHO subfractions, energy values, and CHO rumen degradation 
      kinetics of combined feeds of hulless barley with pure wheat dried distillers 
      grains with solubles (DDGS) at five different combination ratios (hulless barley 
      to pure wheat DDGS: 100:0, 75:25, 50:50, 25:75, 0:100). The molecular 
      spectroscopic parameters assessed included: lignin biopolymer molecular spectra 
      profile (peak area and height, region and baseline: ca. 1539-1504 cm(-1)); 
      structural carbohydrate (STCHO, peaks area region and baseline: ca. 1485-1186 
      cm(-1)) mainly associated with hemi- and cellulosic compounds; cellulosic 
      materials peak area (centered at ca. 1240 cm(-1) with region and baseline: ca. 
      1272-1186 cm(-1)); total carbohydrate (CHO, peaks area region and baseline: ca. 
      1186-946 cm(-1)). The results showed that the functional groups (biomolecular, 
      biopolymer) in the combined feeds are sensitive to the changes of carbohydrate 
      chemical and nutrient profiles. The changes of the CHO molecular spectroscopic 
      features in the combined feeds were highly correlated with CHO chemical profiles, 
      CHO subfractions, in situ CHO rumen degradation kinetics and fermentable organic 
      matter supply. Further study is needed to investigate possibility of using CHO 
      molecular spectral features as a predictor to estimate nutrient availability in 
      combined feeds for animals and quantify their relationship.
CI  - Copyright (c) 2012 Elsevier B.V. All rights reserved.
FAU - Zhang, Xuewei
AU  - Zhang X
AD  - College of Agriculture and Bioresources, University of Saskatchewan, Saskatoon, 
      Canada.
FAU - Yu, Peiqiang
AU  - Yu P
LA  - eng
PT  - Journal Article
PT  - Research Support, Non-U.S. Gov't
DEP - 20120224
PL  - England
TA  - Spectrochim Acta A Mol Biomol Spectrosc
JT  - Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy
JID - 9602533
RN  - 0 (Carbohydrates)
SB  - IM
MH  - Animal Feed/analysis
MH  - Animals
MH  - *Carbohydrate Metabolism
MH  - Carbohydrates/chemistry
MH  - Hordeum/chemistry/metabolism
MH  - Rumen/metabolism
MH  - Ruminants/*metabolism
MH  - Spectrum Analysis
EDAT- 2012/03/27 06:00
MHDA- 2012/08/09 06:00
CRDT- 2012/03/27 06:00
PHST- 2012/01/07 00:00 [received]
PHST- 2012/01/27 00:00 [accepted]
PHST- 2012/03/27 06:00 [entrez]
PHST- 2012/03/27 06:00 [pubmed]
PHST- 2012/08/09 06:00 [medline]
AID - S1386-1425(12)00083-2 [pii]
AID - 10.1016/j.saa.2012.01.070 [doi]
PST - ppublish
SO  - Spectrochim Acta A Mol Biomol Spectrosc. 2012 Jun 15;92:225-33. doi: 
      10.1016/j.saa.2012.01.070. Epub 2012 Feb 24.