American Chemical Society, Journal of Agricultural and Food Chemistry, 18(62), p. 3997-4006, 2013
DOI: 10.1021/jf404566p
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Our team is designing and fully characterizing black raspberries (BRB) food products suitable for long-term cancer prevention studies. The processing, scale up and storage effect on the consistency, quality, bioactive stability and sensory acceptability of two BRB delivery systems of varying matrices is presented. BRB dosage, pH, water activity and texture were consistent in the scale-up production. Confections retained > 90% of anthocyanins and ellagitannin after processing. Nectars had > 69% of anthocyanins and > 66% of ellagitannin retention which varied with BRB dosage due to the processing difference. Texture remained unchanged during storage. BRB products consumed in a prostate cancer clinical trial were well accepted in sensory tests. Thus, this study demonstrates that two different BRB foods can be formulated to meet quality standards with a consistent bioactive pattern and successfully scaled up for a large human clinical trial focusing on cancer risk and other health outcomes.