Journal of AOAC International
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Thermoluminescence Detection of Irradiated Shellfish: International Interlaboratory Trial
Journal of AOAC International - Tập 86 Số 5 - Trang 976-982 - 2003
Abstract An international interlaboratory trial was conducted using
thermoluminescence for the detection of irradiated shellfish, aimed at
validating the method for routine use. Nephrops norvegicus, mussels, brown
shrimps, black tiger prawns, and king scallops were presented as nonirradiated
and irradiated to 0.5 and 2.5 kGy. The protocol called for the use of 3
preparation methods: extraction of ...
Perspective on Advancing FDA Regulatory Monitoring for Mycotoxins in Foods using Liquid Chromatography and Mass Spectrometry (Review)
Journal of AOAC International - Tập 99 Số 4 - Trang 890-894 - 2016
Abstract The presence of mycotoxins (such as aflatoxins, deoxynivalenol,
fumonisins, and patulin) is routinely monitored by the U.S. Food and Drug
Administration (FDA) to ensure that their concentrations in food are below the
levels requiring regulatory action or advisories. To improve the efficiency of
mycotoxin analysis, the researchers at the FDA's Center for Food Safety and
Applied Nutrition h...
Advances in LC–MS/MS Methods for Allergen Testing, Meat Speciation, and Gelatin Speciation
Journal of AOAC International - Tập 102 Số 5 - Trang 1309-1315 - 2019
European Regulations for Labeling Requirements for Food Allergens and Substances Causing Intolerances: History and Future
Journal of AOAC International - Tập 101 Số 1 - Trang 60-69 - 2018
Abstract Food allergies are increasing globally, including numbers of allergens,
the sensitization rate, and the prevalence rate. To protect food-allergic
individuals in the community, food allergies need to be appropriately managed.
This paper describes current Australian food allergen management practices. In
Australia, the prevalence of food allergies, the anaphylaxis rate, and the fatal
anaphy...
Japanese Food Allergen Labeling Regulation: An Update
Journal of AOAC International - Tập 101 Số 1 - Trang 8-13 - 2018
Abstract The Japanese food allergen labeling regulation was designed to match
real Japanese food allergy circumstances and also to be enforced effectively;
thus, (1) regulated food allergens were selected by prevalence and seriousness
according to food allergy surveys in Japan; (2) the detection criterion for
ELISA monitoring, 10 μg food allergen protein/g (or mL) food, was set up as the
threshold...
Determination of Ethanol in Kombucha, Juices, and Alcohol-Free Beer by EnzytecTMLiquid Ethanol: Single-Laboratory Validation, First Action 2017.07
Journal of AOAC International - Tập 101 Số 4 - Trang 1101-1111 - 2018
Abstract EnzytecTMLiquid Ethanol is an enzymatic test for the determination of
ethanol in kombucha, juices, and alcohol-free beer. The kit contains two
components in a ready-to-use format. Quantification is based on the catalytic
activity of alcohol dehydrogenase, which oxidizes ethanol to acetaldehyde and
converts NAD+ to NADH. Measurement is performed in 3 mL cuvettes at 340 nm
within 20 min. Sa...
Methodology for Determining Degree of Hydrolysis of Proteins in Hydrolysates: A Review
Journal of AOAC International - Tập 93 Số 5 - Trang 1515-1522 - 2010
Abstract Degree of hydrolysis (DH) is defined as the proportion of cleaved
peptide bonds in a protein hydrolysate. Several methods exist for determining
DH; the most commonly used of these include the pH-stat, trinitrobenzenesulfonic
acid (TNBS), o-phthaldialdehyde (OPA), trichloroacetic acid soluble nitrogen
(SN-TCA), and formol titration methods. The pH-stat method is based on the
number of prot...
Composition of Pomegranate Juice
Journal of AOAC International - Tập 95 Số 1 - Trang 163-168 - 2012
Abstract A database of 793 commercial pomegranate juices was analyzed to produce
a profile for authentication of pure pomegranate juice. The database consisted
of data from a mix of authentic and adulterated samples. Statistical tools were
used to reduce the database to a stable sample set of 477 presumably authentic
samples. The profile obtained (mean, SD at 16 Brix) are as follows: fructose
(g/1...
Improved Extraction of Ginkgotoxin (4′-O-methylpyridoxine) from Ginkgo biloba Products
Journal of AOAC International - Tập 88 Số 1 - Trang 26-29 - 2005
Abstract A simple extraction procedure was applied to the analysis of
canned/packaged white nuts and Ginkgo biloba extracts. Extraction by shaking
with water at room temperature was more convenient to use than a previously
published Soxhlet procedure for analysis of packaged Ginkgo biloba seeds (white
nuts) for ginkgotoxin; recoveries from spiked dried seeds by the simple
extraction procedure aver...
Analysis of Ginkgo biloba for the Presence of Ginkgotoxin and Ginkgotoxin 5′-Glucoside
Journal of AOAC International - Tập 83 Số 6 - Trang 1313-1320 - 2000
Abstract Hot water extracts of Ginkgo biloba seeds were analyzed for the
presence of ginkgotoxin (4′-O-methylpyridoxine) by reversed-phase liquid
chromatography (LC) using methanol–0.05M KH2PO4 (1 + 9, v/v) adjusted to pH 3 as
mobile phase. Detection was by fluorescence (excitation 280 nm, emission 370
nm). A straight line calibration curve was obtained for the 10–100 ng injected.
After addition o...
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