Results The average mass concentration of PM10 in Zhongyuan Supermarket,Commerce Building and Foodstuff Centre were 0.212 mg/m3, 0.108 mg/m3, 0.056 mg/m3 and that of PM2.5 were 0.179 mg/m3, 0.092 mg/m3, 0.043 mg/m3 respectively.
Correctitude across examination was adopted to choose the best digestion system. The detection limit was 0.10ng/cm3, RSD%0.52%～1.74%, CV% 97.00%～108.00%. The method has been used for the determination of Cadmium in foodstuff with asatisfactory result.
the method has also been applied to the determination of trace vanadium(V) in foodstuff samples with the relative standard deviation of 1.18%～4.00% and the recovery of 97.5%~102.5%, the results are in good agreement with those provided by AAS method.
[Methods]To analyze the test results of some foodstuff produced by small workshops in Bobai county from 1996 to 2003.[Results]1 471 samples were tested,1 291 were qualified,the eligible rate was 87.8%,with the lowest in 1996,the highest in 2003,and the difference of eligible rate between each year had statistic significance(χ~2=20.91,,P<0.01).
Modified procedures were developed for the detection of γ-hydroxybutyric acid and 1,4-butanediol (its metabolic precursor) in foods, food additives, and urine using gas chromatography and gas chromatography-mass spectrometry.
The content of caffeine in multicomponent natural objects (tea leaves, coffee beans, and instant coffee) and caffeine-containing beverage foods was determined by ion-exchange chromatography.
This study is designed to investigate the genotoxic effect of sodium metabisulphite (SMB), which is used as an antimicrobial substance in foods on bone marrow cells of rats.
circinelloides Δ6 desaturase gene into conventional oil crop to produce a large amount of GLA for functional foods and pharmaceutical products.
It is assumed that foods with a low nutrient value (grasses, mosses, lichens, plant debris, wood, and roots of various plants) prevent Macrolepidoptera species from spreading in the Subarctic region.
The material presented elucidates the role played by collagen and its fractions in the development of new, ecologically pure foodstuffs containing nutritive fibers.
As follows from the analysis of these data, collagen fractions with molecular weights in excess of 120 kDa offer the greatest promise for producing useful foodstuffs.
The detectors can be applied in the atomic industry, radiation biotechnology, medicine (for object radicidation), the food industry for radiation handling of foodstuffs, radiation processing of paper (for example, mail radiation processing), etc.
Working Chamber for Processing Foodstuffs by a Complex Action of Strong Pulsed Electric Fields
Requirements for working chambers intended for the sterilization of foodstuffs by high-voltage pulses are specified.