Pressurized system and microwave-assisted extraction for rapid analysis of fiber in animal feedstuffs

被引：3
|
作者：
Souza, G. B. [1 ]
Menezes, E. A. [1 ,2 ]
Gonzalez, M. H. [1 ,2 ]
Carapelli, R. [1 ,2 ]
Chaves, F. S. [1 ,2 ]
Matos, W. O. [1 ,2 ]
Nogueira, A. R. A. [1 ]
机构：
[1] Embrapa Pecuaria Sudeste, Grp Anal Instrumental Aplicada, BR-13560970 Sao Carlos, SP, Brazil
[2] Univ Fed Sao Carlos, Dept Quim, BR-13560 Sao Carlos, SP, Brazil
来源：
ANALYTICAL LETTERS | 2008年 / 41卷 / 09期
关键词：
feed analysis; microwave-assisted extraction; neutral detergent fiber; pressurized system;
D O I：
10.1080/00032710802122362
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A pressurized system under microwave radiation and filter bags to contain the samples was proposed as an alternative to Neutral Detergent Fiber (NDF) determination in animal feed. After optimization by a 2 3 factorial design, the procedure was applied to nine forage and cereal bran with different amounts of starch (supplied by proficiency testing at various nutrition laboratories). Recoveries from 93 to 110% (0.7 to 7.4 RSD) were obtained. The proposed system allows the NDF simultaneous extraction from 18 samples, increasing the samples throughput from 6 or 40 day(-1) to approximately 280 day(-1), with low consumption of energy and reagents, producing low amounts of residue.
引用
收藏
页码：1633 / 1639
页数：7
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