Antioxidant compounds and their antioxidant activity in 4 different colored (green, yellow, orange, red) sweet bell peppers (Capsicum annuum L.) were investigated. The total phenolics content of green, red determined by the Folin-Ciocalteau method 2.4, 3.3, 3.4, 4.2 micromol catechin equivalent/g fresh weight, respectively. pepper had significantly higher than green pepper. Among peppers, contained a level beta-carotene (5.4 microg/g), capsanthin (8.0 quercetin (34.0 luteolin (11.0...

The antimicrobial susceptibilities of 168 Vibrio parahaemolyticus and 151 vulnificus isolates recovered from 82 Louisiana Gulf retail oysters in 2005 2006 were determined. Overall, the two vibrios remained susceptible to majority antimicrobials tested; reduced susceptibility was detected only V. for ampicillin (81%; MIC > or = 16 microg/ml). Additionally, displayed significantly higher MICs cefotaxime, ciprofloxacin, tetracycline than vulnificus.

Summary An increasing demand of gluten‐free ( GF ) products is caused by a growing number diagnosed coeliacs and consumption trend to eliminate allergenic proteins from diet. Driven the rapidly market, comprehensive understanding necessary. The purpose this review was concisely present an overview various approaches improve physicochemical sensory qualities bread, cake/muffin pasta/noodle products. Some novel techniques used in were discussed review. These included use different alternative...

ABSTRACT: This study investigated the effect of nisin added to zein film coatings (Z) coated onto ready‐to‐eat chicken against L. monocytogenes. monocytogenes inoculated samples were dipped into Z dissolved in propylene glycol (ZP) or ethanol (ZE), with and without (N) (1000 IU/g) and/or 1% calcium propionate (CP) then stored at 4 °C 8 for 24 d. After 16 d growth (6.8 log CFU/g) was suppressed by 4.5 5 CFU/g 2.7 counts maintained a nondetectable level from day 0 ZEN, ZPNCP, ZENCP. Zein can...

ABSTRACT: The effects of hydrophobicity/hydrophilicity edible films against Listeria monocytogenes strain V7 by various nisin concentrations (4.0 ‐ 160 IU/film disk) and pH values ranging from 2.0 to 8.0 were determined the mechanical properties water vapor permeability prepared with or without compared. Surface hydrophobicities (446, 282, 232 142, respectively) whey protein isolates, soy egg albumen wheat gluten determined. As concentration increased, amount inhibition progressively...

We herein report the preparation and investigation of antibacterial activity biocidal ionic liquids (ILs) consisting cationic imidazolium or pyridinium an anionic β-lactam antibiotic. The properties were quantified by measuring minimum inhibitory concentration bactericidal against Escherichia coli O157:H7, Klebsiella pneumoniae, Staphylococcus aureus, Enterococcus faecium. In general, ILs had improved than their parent materials, whether individually in combination. 83% experiments,...

Pathogenic enteric viruses are responsible for a wide range of infections in humans, with diverse symptoms. Raw and partially treated wastewaters major sources environmental contamination viruses. We monitored municipal secondary wastewater treatment plant (New Orleans, LA) on monthly basis norovirus (NoV) GI GII enterovirus serotypes using multiplex reverse transcription-quantitative PCR (RT-qPCR) microbial indicators fecal standard plating methods. Densities indicator bacteria...

ABSTRACT: This study investigated the antimicrobial effect of oyster lysozyme with or without nisin added to calcium alginate (CaAlg) coated on surface smoked salmon against Listeria monocytogenes and Salmonella anatum . L. S. inoculated samples (1 g) were dipped into CaAlg either (OysL) hen egg white (HEWL), (N), then stored at 4 °C for 35 d. Our results indicated that effectiveness was enhanced when coatings. After d growth suppressed in range 2.2 2.8 log CFU/g CaAlgNOysL CaAlgNHEWL...

Abstract Objective: Obesity after menopause is a health concern for older females. Changes in the microbiota are likely to occur with this condition. Modifying prebiotic plausible strategy improving of menopausal Design and Methods: Resistant starch type 2 from high‐amylose maize (HAM‐RS2) was used as rats × factorial study two levels HAM‐RS2 (0 or 29.7% weight diet) referred energy control (EC) diets, respectively; surgery, ovariectomized (OVX) sham. Results: In 6‐week, postsurgery recovery...

A facile method was used to synthesize biocomposites containing differing ratios of hyaluronic acid (HA) and cellulose (CEL). Based on the properties individual polymers, resultant composite materials may have potentially great wound care properties. In outlined here, 1-butyl-3-methylimidazolium chloride ([Bmim][Cl]), a simple ionic liquid, as sole solvent without chemical modifiers dissolve biopolymers at 1:1 2:1 HA CEL. This completely recyclable since [Bmim][Cl], can be recovered. Results...

ABSTRACT: The mechanical and bacterial barrier properties of washed (tap water, sodium carbonate, Na 2 CO 3 , hypochlorite, NaOCl) noncoated eggs coated with soy protein isolate (SPI), whey (WPI), carboxylmethyl cellulose (CMC), or wheat gluten (WG) were evaluated. All eggshells showed greater puncture strength than those eggs. film‐coated reduced post‐wash penetration as measured by dye method. WPI coating completely inhibited blue on average. These results suggest that coatings can be used...

Abstract: Effects of mineral oil (MO) and 4 emulsions (prepared with different emulsifier types) MO chitosan solution (CH) at a fixed ratio MO:CH = 25:75 as coating materials in preserving the internal quality eggs were evaluated during 5 wk 25 °C 20 °C. Generally, storage time increased, Haugh unit yolk index values decreased whereas weight loss increased. However, and/or emulsion coatings minimized (<1.5%) preserved albumen (with final B grade) for least 3 longer than those observed...

Abstract Sensory acceptability, purchase intent (PI), consumer emotional profile, and fatty acid profile of rib‐eye steaks from four different biological types grass‐fed cattle (Angus, Brangus, Pineywoods, Holstein) were evaluated. The effects health benefit information (HBI) pertaining to beef on the overall liking (OL), PI also studied. Consumers rated two nontraditional (Pineywoods equally or higher than conventional (Angus Brangus) in several hedonic (9‐point scale) categories. Mean OL...

ABSTRACT: Vibrio vulnificus and parahaemolyticus are the most common species associated with seafood illness in United States. Our study was conducted to determine if strain‐to‐strain differences exist growth survival of 8 different V. strains at low temperatures. By day 10, strain 515‐4C2 had significantly higher counts ( P < 0.05) (1.97 log CFU/g) compared 3315, 1007, 29306 5 °C, which reached nondetectable levels. At (2.23 CFU/mL) 33815, 541(O) 49C, 10 only 33815 57C highest (5.28 by...

ABSTRACT Ozone is a USFDA and USDA approved food contact sanitizing agent has been used in the seafood industry both gaseous dissolved forms to destroy bacteria. The wild harvest shrimp most economically important fishery U.S. Gulf of Mexico region, Louisiana majority mechanically peeled frozen. Dissolved ozone was measured processing water at product application study optimization ozonated treatment for reducing microbial contamination meat. Shrimp samples were either sprayed or soaked with...

Nationally, nearly 1.5 million patients in the USA suffer from ailments requiring bone grafts and hip other joint replacements. Infections following internal fixation orthopaedic trauma can cause osteomyelitis 22–66% of cases and, if uncontrolled, mortality rate be as high 2%. We characterize a procedure for synthesis antimicrobial biocompatible poly-l-lactic acid (PLLA) poly-ethyleneglycol (PEG) bioscaffolds designed to degrade absorb at controlled rate. The bioscaffold architecture aims...

Abstract A novel biomass‐mediated method to synthesize cellulose‐stabilized silver nanoparticles (SNPs) and incorporate them into biocompatible/bioabsorbable poly‐ L ‐lactic acid (PLLA) for producing SNP–PLLA nanocomposite thin films was developed the antimicrobial efficacy biocompatibility of were studied. The formation coating morphology SNPs characterized with UV–visible spectrophotometry transmission electron microscopy (TEM), release rate ion from determined by inductively coupled...