Near-infrared microscopic methods for the detection and quantification of processed by-products of animal origin

O. Abbas; J. A. Fernández Pierna; P. Dardenne; V. Baeten

doi:10.1117/12.850100

20 April 2010 Near-infrared microscopic methods for the detection and quantification of processed by-products of animal origin

O. Abbas, J. A. Fernández Pierna, P. Dardenne, V. Baeten

Author Affiliations +

Proceedings Volume 7676, Sensing for Agriculture and Food Quality and Safety II; 76760O (2010) https://doi.org/10.1117/12.850100
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

Abstract

Since the BSE crisis, researches concern mainly the detection, identification, and quantification of meat and bone meal with an important focus on the development of new analytical methods. Microscopic based spectroscopy methods (NIR microscopy - NIRM or/and NIR hyperspectral imaging) have been proposed as complementary methods to the official method; the optical microscopy. NIR spectroscopy offers the advantage of being rapid, accurate and independent of human analyst skills. The combination of an NIR detector and a microscope or a camera allows the collection of high quality spectra for small feed particles having a size larger than 50 μm. Several studies undertaken have demonstrated the clear potential of NIR microscopic methods for the detection of animal particles in both raw and sediment fractions. Samples are sieved and only the gross fraction (superior than 250 μm) is investigated. Proposed methodologies have been developed to assure, with an acceptable level of confidence (95%), the detection of at least one animal particle when a feed sample is adulterated at a level of 0.1%. NIRM and NIR hyperspectral imaging are running under accreditation ISO 17025 since 2005 at CRA-W. A quantitative NIRM approach has been developed in order to fulfill the new requirements of the European commission policies. The capacities of NIRM method have been improved; only the raw fraction is analyzed, both the gross and the fine fractions of the samples are considered, and the acquisition parameters are optimized (the aperture, the gap, and the composition of the animal feed). A mapping method for a faster collection of spectra is also developed. The aim of this work is to show the new advances in the analytical methods developed in the frame of the feed ban applied in Europe.

Citation Download Citation

O. Abbas, J. A. Fernández Pierna, P. Dardenne, and V. Baeten "Near-infrared microscopic methods for the detection and quantification of processed by-products of animal origin", Proc. SPIE 7676, Sensing for Agriculture and Food Quality and Safety II, 76760O (20 April 2010); https://doi.org/10.1117/12.850100

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available