Quantitative Analysis of Various Citrus Oils by ATR/FT-IR and NIR-FT Raman Spectroscopy

Authors: Schulz, H.; Schrader, B.; Quilitzsch, R.; Steuer, B.

Source: Applied Spectroscopy, Volume 56, Issue 1, Pages 9A-36A and 1-138 (January 2002) , pp. 117-124(8)

Publisher: Society for Applied Spectroscopy

Buy & download fulltext article:

OR

Price: $29.00 plus tax (Refund Policy)

Abstract:

The essential oils of various commercial citrus species were studied by ATR/FT-IR as well as NIR-FT Raman spectroscopy. Some of the most relevant monoterpene components occurring in the oil, such as limonene and γ-terpinene, show characteristic key bands in the IR and Raman spectra, which are useful for making a quantitative distinction between different oil types. Applying principal component analysis (PCA) to the spectral data, the individual citrus products are located, in most cases, as separated clusters in a 3-dimensional factor space. Cross-validation statistics showed that a partial least-square (PLS) algorithm was able to produce high quality predictions of the relative oil composition as well as general quality parameters. Both complementary spectroscopic techniques described in this study have the potential to replace existing analytical procedures because they are capable of faster quality control measurements and they allow on-line analyses during distillation or extraction processes to be performed.

Keywords: ATR; CAROTENOIDS; CHEMOMETRICS; CITRUS OILS; FT-IR; MONOTERPENOIDS; NIR-FT RAMAN; QUANTITATIVE ANALYSIS

Document Type: Research Article

DOI: http://dx.doi.org/10.1366/0003702021954296

Publication date: January 1, 2002

More about this publication?
Related content

Tools

Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content

Text size:

A | A | A | A
Share this item with others: These icons link to social bookmarking sites where readers can share and discover new web pages. print icon Print this page