The data show that the addition of PFPP into the yoghurt effects differently the parameters studied depending on the combination of bacteria and mainly on the milk type, being in general more favorable in the case of skim yoghurts. The authors wish to thank Danisco Brasil Ltda (Cotia, São Paulo, Brazil) and Globalfood (São Paulo, Brazil) for providing the cultures, De Marchi for donation of passion fruit by-product and FAPESP, CNPq and CAPES for financial support. “
“The presence of defective coffee beans depreciates the quality of the coffee beverage consumed worldwide. These beans represent about 20% of the total coffee produced in Brazil and similar amounts can be expected in other producing

areas around the world (Mendonça et al., 2008 and Ramalakshmi et al., 2007). Selleck SB203580 Although separated from the non-defective beans prior to commercialization in external markets, the majority of the defective beans are dumped in the Brazilian internal market and, overall, a low-grade roasted coffee is consumed in the country (Craig, Franca, & Oliveira, 2011). The negative effect that such beans have on coffee quality can be associated to specific problems that occur during harvesting and post-harvest processing operations. Black beans result from dead beans within the coffee cherries or from beans that fall naturally on the ground by action of rain

or over-ripening (Mazzafera, 1999). The presence of sour beans can be associated with ‘overfermentation’ during wet processing and with improper drying or picking of Methane monooxygenase overripe cherries, whereas immature CHIR-99021 mouse beans come from immature

fruits (Clarke and Macrae, 1987 and Mendonça et al., 2008). The chemical changes due to the extraneous factors acting upon the beans (e.g., microbial fermentation) and due to the maturity stage of the beans (e.g., immature vs. mature) exert a perceptive effect in the sensory quality of the coffee beverage when determined by a trained sensory panel, but can be subtle enough not to be detected by analytical instruments depending on the technique being employed for that purpose. Considering that the defective coffee is separated from the non-defective prior to commercialization, and is also cheaper than non-defective coffee, the amount of defective beans to be used for roasting is dependent exclusively on the types of blends defined by the roasters themselves. Thus, the ultimate quality of a brand of coffee will be dictated by the amount of defective beans used for roasting, with higher qualities being expected for blends with small amounts of these beans and lower qualities for blends with greater amounts. The presence of black beans in a roasted batch usually imparts a heavy flavor to the beverage; sour beans contribute to sour and oniony tastes, while immature beans impart astringency (Clarke & Macrae, 1987).