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

页码：1633 / 1639

页数：7

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