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WWW.AOAC.ORG
301.924.7077
WEDNESDAY, SEPTEMBER 27, 2017
8:15 AM – 9:45 AM
Committee on Statistics Symposium: Ideas for Target
Measurement Uncertainty, Intermediate Precision, and
Collaborative Studies — Review and Meta-Analysis
Members of the AOAC Committee on Statistics will present statistics
supporting target measurement uncertainty and the Analytical Target
Profile as described in recent USP articles as it relates to the upcoming
revision of the ISO 17025. Furthermore, there will be a presentation on
intermediate precision, its generalization and how to design a study for
its measurement. Additionally, a review of quantitative collaborative
studies for a chemical analyte published in
J. AOAC
from 2000 to
2016 were identified and the reported statistical results tabulated. A
meta-analysis of the results was performed and an evaluation made
of possible performance requirements based on tolerance limits of the
observed population of studies and compared to the HORRAT system will
also be presented.
CHAIR:
Sidney Sudberg,
Alchemist Labs
•
Jane Weitzel,
Consultant
Statistics to Support Target Measurement Uncertainty and the
Analytical Target Profile as Described in Recent USP Articles
•
Paul Wehling,
Medallion Labs/General Mills
Intermediate Precision: Its Generalization and How to Design a Study
for its Measurement
•
Sidney Sudberg,
Alchemist Labs
A Systematic Review and Meta-Analysis of Quantitative Chemical
Collaborative Studies Published in
J. AOAC
from 2000 to 2016 Based
on the Logarithmic metamer pC
Applications of Metagenomics for Food Safety
Genomic technologies are now frequently used for the characterization
of foodborne pathogens, and have been beneficial in the identification
of sources of foodborne outbreaks. While such investigations typically
rely on the genomic characterization of bacterial isolates, metagenomic
analysis of more complex communities is proving to be a valuable tool
supporting food production and food safety objectives. Applications
of metagenomics include: (1) study of complex enrichment culture
growth dynamics to gain a better understanding of factors influencing
growth of pathogens in food enrichment broths leading to improved
microbiological methods, (2) characterization of bacterial communities
in food commodities and food production environments to identify
signals of potential problems, enabling early interventions to avoid
pathogen contamination of food commodities and (3) Detection of
pathogens in foodborne outbreak investigations that could not be
cultured using traditional means, enabling characterization of the
etiological agents associated with the outbreak. This session will
present some of the emerging uses for metagenomics in food safety and
describe bioinformatics methods for metagenome analysis enabling
participants to gain a better understanding of how metagenomics
technologies can be applied to improve food safety outcomes.
CO-CHAIR:
Catherine Carrillo,
Canadian Food Inspection Agency (CFIA)
CO-CHAIR:
Irene Iugovaz,
Health Canada
•
Karen Jarvis,
U.S. Food and Drug Administration
Pathogen Detection and Food Microbiome Characterization Using a
Metagenomics Approach
•
Konstantinos Konstantinidis,
Georgia Institute of Technology
Metagenomic Investigation of Foodborne Outbreaks
•
Sam Minot,
One Codex
Validating Microbial Metagenomics using Standardized, Reproducible
Methods with One Codex
Worldwide Perspectives on Contaminants Testing in Food and
Environmental Samples Using Advanced Analytical Techniques
We have gathered scientist from around the world in one session to
get a fully worldwide perspective of food and environmental testing
using newer technologies. In this session you can see how scientists
from Europe, Asia, Australia and North America utilize powerful modern
technologies on residue testing and gain insight on how this can help
you with your scientific endeavors.
CO-CHAIR:
Ping Wan,
Office of Indiana State Chemist
CO-CHAIR:
Steven Moser,
Oklahoma Department of Agriculture,
Food & Forestry
•
Walter Hammack,
Florida Department of Agriculture and
Consumer Services
High Resolution Mass Spectrometry Strategies for Targeted
and Non-Targeted Analysis in Food Samples
•
Mingchih Fang,
Taiwan Food and Drug Administration
High-Resolution Mass Spectrometry in Food Analysis:
Real Case Experiences from Taiwan FDA
•
Robert Trengove,
Murdoch University
Food and Environmental Contamination Analysis: Nice to
Have and Necessary Today, an Australian Perspective
•
Amadeo Fernandez-Alba,
University of Almeria
High Resolution Mass Spectrometry Experiences from the European
Union Reference Laboratory for Pesticide Residues in Fruits and
Vegetables
10:15 AM – 11:45 AM
What’s New in Carbohydrates? Functional Carbohydrate
Ingredients and Dietary Fiber Regulation
Carbohydrates are the most abundant group of natural products. They
serve as energy storage molecules (starch, glycogen), and structural
components (cellulose, chitin) in plants and living organisms.
Carbohydrates are present in all types of cell walls and cell membranes,
playing important roles in physiological and pathological processes,
such as fertilization, immunity, cancer, etc. They are also critical to
many other biological processes, such as DNA/RNA formation and
protein glycosylation. Furthermore, carbohydrates are unambiguously
one of the major macronutrients for human diet. The dietary guidelines
recommend 45–65% of a healthful diet comes from carbohydrates.
Carbohydrates are not only an important energy source but also, as
dietary fiber, provide other health benefits by promoting health and well-
being or reducing the risk of disease.
In the carbohydrate session, we will cover topics around dietary
fiber and emerging functional carbohydrate aspects, including their
definition, benefits and functions, and analytical methods. We will
discuss the current analytical progress on sialic acid, chondroitin and
GAGs, dietary fiber and human milk oligosaccharides.
CO-CHAIR:
Xun Yan,
AMWAY
CO-CHAIR:
Jon Devries,
Medallion Laboratories/General Mills