Abstract This research aimed to evaluate the influence of adding cupuassu (Theobroma grandiflorum) and pitaya (Hylocereus polyrhizus) pulps on the physicochemical and sensory properties of milk bread. We prepared four formulations: control (no fruit added), and three formulations where milk was partially replaced for different proportions of pulps. The following percentages were used: cupuassu pulp (32.37 to 41.61%), pitaya pulp (4.62 to 13.87%), and milk (5.60 to 31.52%). The nutritional composition, instrumental color analysis, and acceptability of the bread were assessed. The addition of fruit pulp into the bread reduced up to 41.44% the lipid content, 40.20% of proteins, and 10.27% of caloric value. The colorimetric analysis showed that the increase in pitaya pulp and decrease in cupuassu pulp reduced the lightness (L*) and the coordinate b*, and increased the coordinate a*. The principal components analysis showed that the most accepted bread formulations were those with 18.14% and 20.74% cupuassu pulp, and 7.78% and 5.18% pitaya pulp. Thus, cupuassu and pitaya pulp can be added into bread formulations as alternative to add nutritional value and contribute to the innovation of bakery products.

Abstract In this review, we gathered information regarding the carotenoid composition of selected Amazonian fruits: peach palm (Bactris gasipaes), buriti (Mauritia flexuosa), tucumã (Astrocaryum vulgare), taperebá (Spondias mombin), and araçá-boi (Eugenia stipitata); and also discussed the stability of carotenoid extracts and their potential to be used as natural colorants in foods. Notwithstanding the claimed health benefits, information on technological approaches to the use of carotenoid extracts from Amazonian fruits as natural colorants or antioxidant are quite limited. These findings evidenced the need for more systematic studies assessing the stability of carotenoid extracts of Amazonian fruits and their application as natural food additives.

Abstract This research aimed to evaluate the influence of tropical fruit peel flours on the breading and quality of chicken nuggets. The treatments consisted of nuggets breaded with four different flour formulations: breadcrumbs, pineapple, bacuri, and peach palm peel. The nuggets were subjected to moisture analysis, fixed mineral residue, lipids, proteins, carbohydrates, caloric value, total carotenoids, instrumental color, and sensory analysis. The breaded nugget with peach palm flour had higher lipid, protein, and carotenoid content, which were 11.21%, 17.73%, and 7.60 mg/100g, respectively. The color of the products differed, as the lightness of the nuggets breaded with breadcrumbs and peach palm peel was higher with 58.46 and 54.89. Principal component analysis showed that the most accepted nuggets formulations were those with peach palm peel flour and breadcrumbs. Pineapple, bacuri, and peach palm fruit peel flours are rich sources of carotenoids. Therefore, its use as meat breading can increase the nutritional value of chicken nuggets. Fruit peel flours can be used to prepare healthier and more nutritious meat-based products, while reducing the generation of agro-industrial residues.