Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 207 Document Number: D13037
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6 pages, Kefirs are fermented beverages containing yeast and bacteria produced by the fermentation of water or milk with kefir grains. Because microorganism density may influence a product's health benefits, label accuracy regarding viable bacterial density and taxonomy of fermented foods is important. In this study, the microbiota of 5 commercial kefir products were measured quantitatively using standard plating techniques and characterized using high-resolution, long-read 16S rRNA gene amplicon sequencing. To enumerate viable lactic acid bacteria, 2 lots of each product were plated on de Man, Rogosa and Sharpe agar upon opening and following 14 d and incubated under anaerobic and aerobic conditions. Results revealed that 66% of products with a guaranteed count of colony-forming units per gram overstated microorganism density by at least 1 log, with only product E exceeding 1 × 109 cfu/g. Sequencing results demonstrated moderate product label accuracy in regard to taxonomy, yet several products contained bacterial species above the minimum detectable threshold (0.001% relative abundance) that were not included on the labels (e.g., Streptococcus salivarius, Lactobacillus paracasei). Our results demonstrate a moderate level of labeling accuracy for commercial kefir products intended for human consumption. Regulatory agencies and consumers must continue to scrutinize these products and demand a higher level of accuracy and quality.
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 30 Document Number: D10556
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3 pages., via website, DairyBusiness., Those within the food system wring their hands about the decreasing influence of science, often blaming consumers for our “post-truth” society. But, there is another reason for the decline of trust in science, according to The Center for Food Integrity (CFI) – one less comfortable to talk about, especially for those who conduct and sponsor research.
Agricultural Communications Documentation Center, Funk Library, University of Illinois Box: 133 Document Number: D11400
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4 pages., Online via website., Results of a national survey among U.S. adults indicated: "A majority of Americans are skeptical of the impact that industry funding has on scientific research and on the recommendations made by practitioners ... The public is somewhat more positive - though still ambivalent - about the effects of government funding on research and practitioner recommendations."
