Description
OXFORD UNIVERSITY PRESS Physical Methods In Food Analysis 2014 Edition by Michael H. Tunick and Charles I. Onwulata
A symposium titled "Physical Methods in Food Analysis" was presented at the Fall National Meeting of the American Chemical Society (ACS) in Philadelphia in August 2012. The symposium was sponsored by the ACS Division of Agricultural and Food Chemistry, Inc. (AGFD), which is in the forefront in the dissemination of knowledge about food chemistry. This book includes ten chapters based on the talks given at that symposium. Chapter 1 describes how poppy, cotton seed,soybean, and canola seed oils can be examined with reverse phase high performance thin layer chromatography and viscosity measurements in an attempt to differentiate between them. Continuing with the theme of distinguishing between foods, Chapter 2 discusses the use of ultrahigh pressure liquidchromatography accurate mass quadrupole time-of-flight mass spectrometry with electrospray ionization for analyzing flavonoid-based compounds in onions, for the purpose of varietal identification. Chapter 3 detailsthe use of high performance liquid chromatography-mass spectrometry for quality control and product standardization of the East Asian botanical jiaogulan. In Chapter 4, lanthanide-sensitized luminescence spectrometry is applied to detection of tetracyclines and fluoroquinolones in food. Chapter 5 shows how glycemic index may be determined for extruded grains blended with whey protein or cashew pulp. Polymethoxyflavones and derivatives, which occur in citrus fruits, are described in Chapter 6along with chromatographic techniques for analyzing them. Chapter 7 discusses rheology as a method for looking at characteristics of bioplastics. The book wraps up with three chapters centering on color. Blue pigments, which are scarce in nature, are covered in Chapter 8 along with methods forseparating and identifying them. In Chapter 9, resonance Raman spectroscopy was used to identify blue and red forms of anthrocyanins in grapes at various pH levels. A description of color changes in polydiacetylene-based smart packaging, and Raman spectroscopic methods for measuring them, are found in Chapter 10. Preface .............................................................................................................................. ix1. High-Performance Thin Layer Chromatography and Raman Microscopyof Cotton and Other Seed Oils ................................................................................ 1Ivan C. Lee, Adam Gamson, and Jonathan Mitchell2. Nontargeted Unknown LC(ESI-)-Q/TOF MS Approaches for FoodVerification .............................................................................................................. 17Jihyun Lee, Jerry Zweigenbaum, and Alyson E. Mitchell3. HPLC/MS Fingerprinting Techniques for Quality Control of Gynostemmapentaphyllum (Thunb.) Makino Samples ............................................................. 31Zhuohong Xie, Haiming Shi, and Liangli (Lucy) Yu4. Lanthanide-Sensitized Luminescence Instrumentation and Methods forAnalysis of Tetracycline and Fluoroquinolone Residues in Foods .................... 49Guoying Chen, Qiongqiong Li, Guyu Liu, Feng Qin, and Yue Du5. Estimating the Glycemic Potential of Extruded Food Materials ....................... 65Charles I. Onwulata and Audrey E. Thomas-Gahring6. Progress in Analyses of Citrus Flavonoids ........................................................... 79Shiming Li, Chih-Yu Lo, and Chi-Tang Ho7. Using Temperature Sweeps To Investigate Rheology of Bioplastics ................. 89Michael H. Tunick, Charles I. Onwulata, and Peter H. Cooke8. Isolation and Characterization of Natural Blue Pigments fromUnderexplored Sources ........................................................................................ 105A. G. Newsome, B. T. Murphy, and R. B. van Breemen9. Resonance Raman Study on the pH Dependence on Grape Anthocyanins .... 127A. E. Burns, J-P. Mazauric, and V. Cheynier10. Polydiacetylene-Based Smart Packaging ........................................................... 137 Sarah C. Hill, Yamin Htet, Jennifer Kauffman, Inyee Y. Han, Paul L. Dawson,William T. Pennington, and Timothy W. HanksEditors' Biographies .................................................................................................... 155Author Index ................................................................................................................ 159Subject Index ................................................................................................................ 161