a b s t r a c tBee pollen, a honeybee product, offers an alternative approach to preventing the oxidative deterioration in meat products. The aim of this study was to evaluate antioxidant properties of lyophilized bee pollen extract (LBP), to determine the phenolic profile by liquid chromatography, and to evaluate the effect of LBP on the oxidative stability of pork meat sausage. The sausages were evaluated for lipid oxidation on the day of their production and every five days during 30 days of storage at 4 C by thiobarbituric acid reactive substances (TBARS). High concentrations of total phenolic compounds with antioxidant activity were detected in LBP (19.69 mg GAE/g: Gallic Acid Equivalent, EC 50 : 0.97 mg/mL respectively). The kaempferol was the majority compound (0.68 mg/g). The TBARS values increased over time with an average of 1.29 at 4.22 mg malonaldehyde/kg meat at the beginning and end of the experiment, respectively. Treatment with LBP showed lower (P < 0.05) TBARS values during any day of storage than the control and sodium erythorbate (SE) treatments. The LBP extract exhibited strong anti-oxidative effects in pork sausage, probably due to high antioxidant activity and the presence of the phenolic compounds in bee pollen; which has potential to be used in pork sausage.

Rosemary (Rosmarinus officinalis) is known for their sensory characteristics and antioxidant properties, mainly due to the presence of several phenolic compounds. The aim of this work, was determine the antioxidant activity and apply the Rosemary lyophilized extract (RLE) in chicken burger, for assess their ability to reduce the lipid oxidation. Total antioxidant capacity and phenolic compounds profile were analyzed by colorimetric tests and liquid chromatography analysis, respectively. Thiobarbituric acid reactive substances assay was used to evaluate the ability of the RLE to prevent lipid peroxidation in chicken burger stored at 4 °C. Three treatments of chicken burgers were prepared (T1 -control, without addition of synthetic antioxidant BHT: butylated hydroxytoluene or RLE), T2 -with addition of BHT, and T3 -experimental, containing RLE). The high contents of total phenolic compounds (40.91 mg GAE g -1 : Gallic Acid Equivalent) and total flavonoids (24.26 mg QE g -1 : Quercetin Equivalents) were found in RLE. Rutin was the major phenolic compound identified in the RLE. The RLE showed strong antioxidant capacity and inhibited 48.29% of lipid oxidation (21 days of storage) in comparison to the control (T1), with low production of malonaldehyde, which has potential to be used in chicken burgers.Keywords: lipid oxidation; antioxidant assays; TBARS; HPLC; Rosmarinus officinalis.Practical Application: The replacing antioxidant synthetic for Rosemary extracts provide good alternatives to get healthy foods.

This study aimed to evaluate the antioxidant activities (AA) of lyophilized rosemary extract and lyophilized sage extract, and their effects on the oxidative stability of poultry pátê. For this purpose, four poultry pátê formulations with rosemary, sage, sodium erythorbate and a control (without antioxidants) were produced. The rosemary and sage were characterized according to total phenolic compounds (TPC) and AA by several methods. The poultry pátês stored at 4 °C were evaluated by the lipid oxidation. High concentrations of TPC were detected in the rosemary extract and sage extract (46.48 and 41.61 mg GAE/g (Gallic acid equivalent), respectively). The AA of the rosemary and sage extracts determined by free radical-scavenging were 4745.72 and 2462.82 µmol TE/g (Trolox equivalents), respectively. The high concentrations of catechin, rutin, myricetin and p-coumaric acids in these extracts may be responsible for the strong inhibitory action against food pathogens. Besides this, these compounds can be responsible for the best performance in inhibiting lipid oxidation in poultry pátês during storage. This study suggests that rosemary and sage extracts may be used as a natural antioxidant in meat products.

Este é um artigo publicado em acesso aberto (Open Access) sob a licença Creative Commons Attribution, que permite uso, distribuição e reprodução em qualquer meio, sem restrições desde que o trabalho original seja corretamente citado. Composição centesimal e conteúdo mineral de diferentes cultivares de feijão biorfortificado (Phaseolus vulgaris L.) Proximate composition and mineral content of different cultivars of biofortified beans (Phaseolus vulgaris L.)Resumo O feijão é uma das principais fontes de proteína e de ferro, além de outros nutrientes, e por ser, também, um alimento de fácil acesso e preparo, faz com que o Brasil seja um dos maiores consumidores e produtores de feijão comum (Phaseolus vulgaris, L.). Estudos apontam que a anemia é o problema nutricional mais grave no Brasil e a inserção de alimentos básicos biofortificados pode auxiliar na redução desse quadro. O objetivo deste trabalho foi analisar, bem como comparar, estatisticamente, a composição centesimal e os teores de minerais dos grãos crus e cozidos das cultivares de feijão comercializadas -tipo preto e carioca -e das cultivares biofortificadas -BRS esplendor e BRS pontal. Os grãos crus triturados e os grãos cozidos foram avaliados quanto aos teores de umidade, cinzas, proteína, lipídios e carboidratos, e os minerais ferro, potássio, magnésio e sódio. Os resultados obtidos foram submetidos à análise de variância e as médias foram comparadas pelo teste de Tukey (p<0,05). A utilização de feijão biofortificado é promissora para diminuir a incidência de anemias, pois os resultados obtidos mostram que a biofortificação aumentou os teores de ferro, potássio e magnésio. Palavras-chave:Anemia; Desnutrição; Proteína; Ferro. AbstractBrazil is one of the largest consumers and producers of the common bean (Phaseolus vulgaris, L.), one of the major sources of protein and iron and other nutrients, besides being easy to cultivate and cook. Studies have shown anaemia to be the most serious nutritional problem in Brazil and the inclusion of biofortified basic foods could help in reducing it. The objective of this paper was to analyse and statistically compare the proximate composition and mineral content of raw and cooked grains of two bean cultivars: black and pinto, and two biofortified cultivars: BRS esplendor and BRS pontal. The ground raw beans and the cooked beans were evaluated with respect to their moisture, ash, protein, lipids, carbohydrates, iron, potassium, magnesium and sodium contents. The results were submitted to an analysis of variance and the means compared by the Tukey test (p<0.05). The use of biofortified beans is of promise to reduce the incidence of anaemia, since the results showed that biofortification increased the iron, potassium and magnesium contents. Rodovia BR 277, km 573, Caixa Postal: 120, Cite as: Proximate composition and mineral content of different cultivars of biofortified beans (Phaseolus vulgaris L.). Braz. J. Food Technol., v. 21, e2017068, 2018. Received: May 12, 2017 Accepted: Aug. 24, 2017 1 Introdução A le...