Quantification of polymeric mannose in wine extracts by FT-IR spectroscopy and OSC-PLS1 regression

被引：29

作者：

Coimbra, MA ^{[1
]}

Barros, AS ^{[1
]}

Coelho, E ^{[1
]}

Gonçalves, F ^{[1
]}

Rocha, SM ^{[1
]}

Delgadillo, I ^{[1
]}

机构：

[1] Univ Aveiro, Dept Quim, P-3810193 Aveiro, Portugal

来源：

CARBOHYDRATE POLYMERS | 2005年 / 61卷 / 04期

关键词：

FT-IR spectroscopy; white wine; red wine; wine polysaccharides; mannose; mannoproteins; OSC-PLS1;

D O I：

10.1016/j.carbpol.2005.06.002

中图分类号：

O69 [应用化学];

学科分类号：

081704 [应用化学];

摘要：

FT-IR spectroscopy has being a widespread technique in the agro-industry for the quick assess of food components, including the wine. Using the region of wavenumbers 1200-800 cm(-1) of the FT-IR spectra wine polysaccharides, Partial Least Squares Regression (PLS1) independent calibration models were built for mannose quantification in complex matrices from white and in red wine extracts. With PLS1 it was not possible to build a calibration model that included both white and red wine extracts. However, a predictive ability of the model for quantification of mannose from mannoproteins based on this FT-IR spectral region was achieved by the application of orthogonal signal correction ((OSC)-PLS1. (C) 2005 Elsevier Ltd. All rights reserved.

引用

页码：434 / 440

页数：7

共 22 条

[1]

Barros A.S., 1999, THESIS I NATL AGRONO

[2]

A LINEAR ARABINAN FROM A RED WINE [J].