Malay apple (Syzygium malaccense) promotes changes in lipid metabolism and a hepatoprotective effect in rats fed a high-fat diet.

This study aimed to investigate the effects of Malay apple (MA) on the glycaemic response, lipid metabolism and liver health of rats fed a normal- or high-fat diet. Male Wistar rats were initially randomized into two groups: normal-fat diet (NF, n = 16) and high-fat diet (HF, n = 16) for three weeks. Then, they were subdivided into: normal-fat diet (NF, n = 8); normal-fat diet supplemented with MA (NFMA, n = 8); high-fat diet (HF, n = 8); high-fat diet supplemented with MA (HFMA, n = 8), continuing for another three weeks with their respective diets.

Chitosan-citric acid edible coating to control Colletotrichum gloeosporioides and maintain quality parameters of fresh-cut guava.

This study aimed to verify the action of edible chitosan-citric acid (CHI-CA) coating to control Colletotrichum gloeosporioides and maintain quality parameters of fresh-cut guava. Chitosan was obtained from Litopenaeus vannamei shells using high temperature and short exposure times. The minimum inhibitory concentration (MIC) and minimum fungicidal concentration (MFC) of CHI-CA against C.

Reutilization of residual glycerin for the produce β-carotene by Rhodotorula minuta.

This study aimed to evaluate the production of carotenoid pigments by Rhodotorula spp. in submerged fermentation, using residual glycerin from biodiesel production as a carbon source. Chromatographic analysis by HPLC showed that the residual glycerin used as substrate was 57.

Determining 1-kestose, nystose and raffinose oligosaccharides in grape juices and wines using HPLC: method validation and characterization of products from Northeast Brazil.

The objective of this work was to validate a method for direct determination in grape juice and wine of 1-kestose, nystose and raffinose oligosaccharides by reversed-phase high-performance liquid chromatography with refractive index detection using a new type of RP-C column (150 × 4.6 mm, 4 µm) with polar end-capping. The validated methodology was also used to characterize grape juice and fine wine products from Northeastern Brazil; and presented suitable linearity, precision, recovery, limits of detection and quantification.

Inhibition of Listeria monocytogenes by Melaleuca alternifolia (tea tree) essential oil in ground beef.

The food industry has been valuing the quest for natural substances for use in food preservation aiming to meet consumer demand for safer, more natural foods with preserved nutrients. This study aimed to assess the antimicrobial potential of essential oil of Melaleuca alternifolia (EOMA) in the inhibition of Listeria monocytogenes (ATCC 7644) (L. monocytogenes) in ground beef.

Production of ethanol fuel from enzyme-treated sugarcane bagasse hydrolysate using d-xylose-fermenting wild yeast isolated from Brazilian biomes.

In this study, we evaluated the potential of yeasts isolated from Amazon to produce second-generation ethanol from sugarcane bagasse delignified with alkaline hydrogen peroxide and hydrolysed with commercial enzyme preparation. The best efficiency savings in glucose and release of xylose were determined by considering the solids and enzyme loads. Furthermore, we selected UFMG-CM-Y473 strain with the best fermentative parameters.

Intake of cookies made with buriti oil (Mauritia flexuosa) improves vitamin A status and lipid profiles in young rats.

The oil extracted from Mauritia flexuosa (buriti) is rich in vitamin A, tocopherols and unsaturated fatty acids. This study evaluated the retinol status, blood glucose levels, lipid profiles, food efficiency rates (FERs), food conversion rates (FCRs) and murine anthropometric parameters of Wistar rats fed cookies made with buriti oil (BOC). The content of β-carotene and monounsaturated fatty acids in the cookies was enhanced (p < 0.

Physico-Chemical Characterization, Bioactive Compounds and Antioxidant Activity of Malay Apple [Syzygium malaccense (L.) Merr. & L.M. Perry].

The purpose of this study was to evaluate the physico-chemical characteristics, bioactive compounds and antioxidant activity of Malay apple fruit (Syzygium malaccense) grown in Brazil with regard to the geographical origin and its peel fractions and edible portion analyzed independently. Fruit diameter, weight, yield, and centesimal composition, ascorbic acid, reductive sugars, total soluble solids, pH and fiber content were determined. Total phenolics (1293 mg gallic acid equivalent/100 g) and total anthocyanins (1045 mg/100 g) contents were higher in the peel, with the major anthocyanin identified using HPLC-DAD-MS/MS as cyanidin 3-glucoside.

Effect of the consumption on buriti oil on the metabolism of rats induced by iron overload.

Objectives: To compare the effect of the consumption of buriti oil and soybean oil on the metabolism of rats under stress induced by iron overload.

Materials And Methods: A total of 28 rats were randomized into control groups who consumed diet added of soybean (CS) or buriti oil (CB) and gavage with saline and two experimental groups who consumed diet added of soybean (ES) or buriti oil (EB) and daily gavage with iron II sulfate as stress inducer. The fatty acid profile of diets was analyzed.

Effects of Dietary Brazilian Palm Oil (Mauritia flexuosa L.) on Cholesterol Profile and Vitamin A and E Status of Rats.

In vitro studies have been carried out to establish the nutritional differences between crude and refined vegetable oils; however, the impact of the consumption of these foods on metabolism, in particular the effect of buriti oil, needs to be further evaluated. The aim of this study was to evaluate the biochemical and murine parameters and the vitamin A and E status in young rats fed with diets supplemented with crude or refined buriti oil. The animals (n = 30) were randomized into three groups receiving diet added of soybean oil (control), crude buriti oil (CBO) and refined buriti oil (RBO) for 28 days.

Microbial biosurfactants as additives for food industries.

Microbial biosurfactants with high ability to reduce surface and interfacial surface tension and conferring important properties such as emulsification, detergency, solubilization, lubrication and phase dispersion have a wide range of potential applications in many industries. Significant interest in these compounds has been demonstrated by environmental, bioremediation, oil, petroleum, food, beverage, cosmetic and pharmaceutical industries attracted by their low toxicity, biodegradability and sustainable production technologies. Despite having significant potentials associated with emulsion formation, stabilization, antiadhesive and antimicrobial activities, significantly less output and applications have been reported in food industry.

Investigation of protocols to extraction and quantification of folates in vegetables matrices split into liquor and fiber fraction using factorial design.

The main protocols of extraction were investigated for the six folate forms in vegetable matrices, treated in two fractions, liquor and fiber. In a pilot study, it was used ammonium acetate added of 2-mercaptoetanol and ascorbic acid as extraction solution. The condition of use of protease and folate conjugase was evaluated, besides alternative treatments without enzyme use.

The cytotoxic effect of essential oils from Origanum vulgare L. and/or Rosmarinus officinalis L. on Aeromonas hydrophila.

This study aimed to evaluate the antibacterial activities of the essential oils from Origanum vulgare L. (OV) and Rosmarinus officinalis L. (RO), both singly and in combination at sub-inhibitory concentrations (¼ MIC + ¼ MIC), against Aeromonas hydrophila and to investigate the possible mechanisms underlying these activities.

[Coliforms in the water supply of fast-food chains in the Metropolitan Region of Recife, in the state of Pernambuco (Brazil)].

A guaranteed supply of clean drinking water in food outlets is a relevant subject for public health. The scope of this study was to assess the microbiological quality of 96 water samples of a network of fast-food stores in the city of Recife (state of Pernambuco, Brazil) and Metropolitan Area and to compare the results to the standards established by Brazilian Health Ministry decree nº 518/2004. Every month, a double sample from one of the faucets in the food preparation area of the eight stores investigated was analyzed, totaling 96 samples over one year.

[Salmonella sp and Listeria monocytogenes in fully cooked ham commercialized in supermarkets of Fortaleza (CE, Brazil): risk factor for public health].

The objective of this work was to evaluate the occurrence of Salmonella sp. and Listeria spp. in fully cooked ham without fat cover, stored under refrigeration, commercialized in supermarkets of Fortaleza (CE, Brazil).

Inhibition of Staphylococcus aureus in broth and meat broth using synergies of phenolics and organic acids.

This study assessed the occurrence of an enhancing inhibitory effect of the combined application of thymol and carvacrol with lactic and acetic acid against Staphylococcus aureus using the determination of Fractional Inhibitory Concentration (FIC) index and kill-time assay in meat broth and in a food model (meat). Minimum Inhibitory Concentration (MIC) of carvacrol and thymol were 1.25 and 0.

Interspecies variation of Kitasatospora recifensis endophytic from yam bean producing thermostable amylases in alternative media.

An endophytic actinomycete isolated from tubers of yam beam (Pachyrhizus erosus L. Urban) was classified as a novel species nominated Kitasatospora recifensis based in phenotypic and genotypic analysis (16S rDNA gene sequence). Monosporic culture using specific ISP2 media revealed three interspecies, which were identified by DNA southern hybridization (Wild strain 13817 W, Aerial Mycelium strain 13817 AM and Vegetative Mycelium strain 13817 VM).