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Journal of the Science of Food and Agriculture

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https://www.readbyqxmd.com/read/28432679/potential-use-of-cowpea-vigna-unguiculata-l-walp-stover-treated-with-white-rot-fungi-as-rabbit-feed
#1
Ederson Andrade, Victor Pinheiro, Alexandre Gonçalves, John W Cone, Guilhermina Marques, Valéria Silva, Luis Ferreira, Miguel Rodrigues
BACKGROUND: Lignin inhibitory effects within the cell wall structure constitute a serious drawback in maximizing the utilization of fibrous feedstuffs in animal feeding. In this way, treatments that promote efficient delignification of these materials must be applied. This study evaluated the potential of white-rot fungi to upgrade the nutritive value of cowpea stover for rabbits feeding. RESULTS: There was an increase in the crude protein content of all substrates as a result of fungi treatments reaching a net gain of 13% for Pleurotus citrinopileatus incubation...
April 22, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28429501/formation-of-macromolecules-in-wheat-gluten-starch-mixtures-during-twin-screw-extrusion-effect-of-different-additives
#2
Kaiqiang Wang, Cheng Li, Bingzhi Wang, Wen Yang, Shuizhong Luo, Yanyan Zhao, Shaotong Jiang, Dongdong Mu, Zhi Zheng
BACKGROUND: Wheat gluten comprises a good quality and inexpensive vegetable protein with an ideal amino acid composition. To expand the potential application of wheat gluten in the food industry, the effect of different additives on the physicochemical and structural properties of wheat gluten/starch mixtures during twin-screw extrusion was investigated. RESULTS: Macromolecules were observed to form in wheat gluten/starch mixtures during twin-screw extrusion, which may be ascribed to the formation of new disulfide bonds and non-covalent interactions, as well as Maillard reaction products...
April 21, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28429474/the-influence-of-glu-1-and-glu-3-loci-on-dough-rheology-and-bread-making-properties-in-wheat-t-aestivum-l-doubled-haploid-lines
#3
Monika Langner, Karolina Krystkowiak, Bolesław P Salmanowicz, Tadeusz Adamski, Paweł Krajewski, Zygmunt Kaczmarek, Maria Surma
BACKGROUND: The major determinants of wheat quality are Glu-1 and Glu-3 glutenin loci and environmental factors. Additive effects of alleles at Glu-1 and Glu-3 loci, and their interactions were evaluated for dough rheology and baking properties in four groups of wheat doubled haploid lines differing in HMW-GS and LMW-GS composition. RESULTS: Flour quality, Reomixer, dough extension, Farinograph and baking parameters were determined. Groups of lines with the alleles Glu-A3b and Glu-B3d were characterized by higher values of dough and baking parameters than those with the Glu-A3e and Glu-B3a alleles...
April 21, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28429461/deodorization-of-arthrospira-platensis-biomass-for-further-scale-up-food-applications
#4
Sara P Cuellar-Bermúdez, Bertha Barba-Davila, Sergio O Serna-Saldivar, Roberto Parra-Saldivar, José Rodriguez-Rodriguez, Sandra Morales-Davila, Koen Goiris, Koenraad Muylaert, Cristina Chuck-Hernández
BACKGROUND: Given the importance of A. platensis as a potential food protein source, we achieve an affordable deodorization process that does not significantly affect the nutritional value of algae biomass. RESULTS: Ethanol, acetone or hexane were used to deodorize algae biomass and then to identify the profile of volatile compounds associated with its distinctive odor. Sensorial characteristics were improved in the biomass cake after the proposed solvent extraction...
April 21, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28425100/mass-spectrometry-analysis-and-in-silico-prediction-of-allergenicity-of-peptides-in-tryptic-hydrolysates-of-the-proteins-from-ruditapes-philippinarum
#5
Yue Yu, Hongwei Liu, Maolin Tu, Meiling Qiao, Zhenyu Wang, Ming Du
BACKGROUND: The Ruditapes philippinarum is nutrient-rich and widely-distributed, but little attentions had been paid on the identification and characterization of bioactive peptides in the bivalve. In this study, we evaluated the peptides of the Ruditapes philippinarum enzymolysised by trypsin using a combination of UPLC separation and a ESI-Q-TOF-MS/MS spectrometer, followed by data processing, sequence-similarity database searching. The potential allergenicity of the peptides was assessed in silico...
April 20, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28423187/characterization-of-the-binding-capacity-of-mercurial-species-in-lactobacillus-strains
#6
Cristina Alcántara, Carlos Jadán-Piedra, Dinoraz Vélez, Vicenta Devesa, Manuel Zúñiga, Vicente Monedero
BACKGROUND: Metal sequestration by bacteria has been proposed as a strategy to counteract metal contamination in foodstuffs. Lactobacilli can interact with metals, but studies with important foodborne metals such as inorganic [Hg(II)] or organic (CH3 Hg) mercury are lacking. Lactobacilli were evaluated for their potential to bind these contaminants and the nature of the interaction was assessed by the use of metal competitors, chemical and enzymatical treatments and mutants affected in the cell-wall structure...
April 19, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28422292/high-theabrownins-instant-dark-tea-product-by-aspergillus-niger-via-submerged-fermentation-alpha-glucosidase-and-pancreatic-lipase-inhibition-and-antioxidant-activity
#7
Yuwan Wang, Mingyue Zhang, Zhengzhu Zhang, Hengqian Lu, Xueling Gao, Pengxiang Yue
BACKGROUND: Theabrownins (TB) are bioactive components usually extracted from Chinese dark tea, where they are present in low concentrations. This study aimed to produce an instant dark tea high in theabrownins via submerged fermentation by the fungus Aspergillus niger. Three fermentation parameters that affect theabrownins content, namely inoculum size, liquid-solid ratio and rotation speed, were optimized using response surface methodology. RESULT: Optimum fermentation conditions were modeled to be an inoculum of 5...
April 19, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28418171/formation-of-oxysterols-during-thermal-processing-and-frozen-storage-of-cooked-minced-meat
#8
Monika Sabolová, Barbora Pohořelá, Jakub Fišnar, Lenka Kouřimská, Diana Chrpová, Jan Pánek
BACKGROUND: Cholesterol is susceptible to oxidation and formation of oxysterols, which could have a negative health effect. The formation and distribution of oxysterols was studied in meatloaves prepared under different baking regimes with increased temperature or prolonged time. The effect of frozen storage and marjoram addition on the level of oxysterols was studied as well. RESULTS: The effect of baking regime on the content and distribution of oxysterols was found...
April 18, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28417465/effects-of-rare-sugar-d-allulose-on-heat-induced-gelation-of-surimi-prepared-from-marine-fish
#9
Masahiro Ogawa, Masaki Inoue, Shigeru Hayakawa, Siwaporn O'Charoen, Makiko Ogawa
BACKGROUND: d-allulose (Alu), the C3-epimer of D-fructose, is noncalorie sweetener (0.39 kcal g(-1) ) with a suppressive effect on postprandial blood glucose elevation. The aim of this study was to investigate the effects of Alu used as sweetener and gel improver instead of sucrose on heat-induced gelation of surimi. RESULTS: The puncture test of a heat-induced surimi gel showed that the surimi gel with 50 g kg(-1) . Alu had 15 and 6 % higher gel strength than the counterpart gel with sucrose (Suc) and that with sorbitol (Sor), respectively...
April 18, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28417464/qualitative-and-quantitative-analysis-of-endophyte-alkaloids-in-perennial-ryegrass-using-near-infrared-spectroscopy
#10
Milton C Soto-Barajas, Iñigo Zabalgogeazcoa, Inmaculada González-Martin, Beatriz R Vázquez-de-Aldana
BACKGROUND: Near-infrared reflectance spectroscopy (NIRS) has been widely used in forage quality control because it is faster, cleaner, and less expensive than conventional chemical procedures. In Lolium perenne (perennial ryegrass), one of the most important forage grasses, the infection by asymptomatic Epichloë fungal endophytes alters the plant nutritional quality due to the production of alkaloids. In this research, we developed a rapid method based on NIRS to detect and quantify endophyte alkaloids (peramine, lolitrem B and ergovaline) using a heterogeneous set of L...
April 18, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28417460/effect-of-high-fat-diet-and-growth-stage-on-the-diversity-and-composition-of-intestinal-microbiota-in-healthy-bovine-livestock
#11
Shengyin Jiao, Hui Cao, Yue Dai, Junhui Wu, Jia Lv, Renjia Du, Bei Han
BACKGROUND: This study aimed to investigate the composition of bacteria in the bovine rectum and their functions during growth, in relation to different diets. Fecal samples were collected from 6-, 12-, 18- and 24-month cattle fed high-fat diet, and healthy female parents fed regular-diet. Total DNA was amplified (V3-V4 of 16S rRNA) and submitted to barcode-DNA-pyrosequencing. Then, intestinal microbiota profiles and functions were analysed. RESULTS: A total of 114,512 OTUs were detected from the 1,802,243 sequences obtained...
April 18, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28417455/an-efficient-process-for-obtaining-of-prebiotic-oligosaccharides-derived-from-lactulose-using-isomerised-and-purified-whey-permeate
#12
Carlos Sabater, Agustín Olano, Marin Prodanov, Antonia Montilla, Nieves Corzo
BACKGROUND: One of the most promising uses of whey permeate (WP) is the synthesis of prebiotic oligosaccharides. Herein, commercial WP was submitted to chemical isomerisation catalysed by sodium borate at an alkaline pH and subsequent purification using anion-exchange resins to remove boron. Afterwards, purified mixtures were used to synthesise prebiotic oligosaccharides using β-galactosidase from Bacillus circulans. RESULTS: Isomerisation of concentrated WP (200 g L(-1) lactose) gave rise to levels of lactulose up to 155...
April 18, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28417450/exploring-the-biological-activity-of-condensed-tannins-and-nutritional-value-of-tree-and-shrub-leaves-from-native-species-of-the-argentinean-dry-chaco
#13
E M García, N Cherry, B D Lambert, J P Muir, M A Nazareno, J I Arroquy
BACKGROUND: Tropical tree or shrub leaves are an important source of nutrients for ruminants and a potential source of biologically active compounds that may affect ruminal metabolism of nutrients. Therefore, eight woody species from the native flora of Argentinean Dry Chaco - rich in secondary compounds such as condensed tannins (CT), were assessed for their nutritional value, CT fractions, and in vitro true digestibility of dry matter as well as biological activity (BA). RESULTS: Differences among species were found in contents of total phenol, protein-precipitating phenols (PPP), bound proteins to PPP (BP) and BP/PPP (P<0...
April 18, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28419490/european-cowpea-landraces-for-a-more-sustainable-agriculture-system-and-novel-foods
#14
Márcia Carvalho, Penelope J Bebeli, Graça Pereira, Isaura Castro, Catalina Egea-Gilabert, Manuela Matos, Efstathia Lazaridi, Isabel Duarte, Teresa Lino-Neto, Georgia Ntatsi, Miguel Rodrigues, Dimitrios Savvas, Eduardo Rosa, Valdemar Carnide
BACKGROUND: Genetic diversity is fundamental for breeding programs and consequently has an important role to obtain new varieties. To properly use the genetic diversity present in germplasm collections, a good knowledge of the agro-morphological traits of each accession is needed. The aim of this study was to explore the production capacity of 24 cowpea landraces from Southern Europe, through phenotypic characterization and evaluation in three different locations of Greece and Portugal...
April 17, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28419463/profiling-of-anthocyanins-in-transgenic-purple-fleshed-sweet-potatoes-by-hplc-ms-ms
#15
Jingqiu Ge, Yijie Hu, Hongxia Wang, Yuanshe Huang, Peng Zhang, Zhihua Liao, Min Chen
BACKGROUND: Anthocyanins in Purple-fleshed Sweet Potato (PSP) are beneficial to human health. The leaf color (Lc) gene is a transcription factor involved in regulating anthocyanin biosynthesis. The anthocyanin profiles of wild-type PSP of Ayamurasaki and its three Lc-transgenic lines were investigated by HPLC-MS/MS. And in vitro antioxidant activities of wild-type and Lc-transgenic lines, including reducing power activity, DPPH radical scavenging activity, hydroxyl radical scavenging activity, linoleic acid autoxidation inhibition activity, ABTS free radical scavenging activity and oxygen radical absorbance capacity activity, were measured...
April 17, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28406526/changes-in-the-nutritional-quality-of-five-mangifera-species-harvested-in-two-maturity-stages
#16
Ignacio Barbosa Gámez, Karla P Caballero Montoya, Noris Ledesma, Sonia G Sáyago Ayerdi, María de Lourdes Gacía-Magaña, Eric J von Wettberg, Efigenia Montalvo-González
BACKGROUND: There are 69 species of edible Mangifera recognized in Southeast Asia. Most of these species have not been characterized for nutritional properties. Here we describe the nutritional quality of the pulp of several Mangifera species: Mangifera casturi, Mangifera lalijiwa, Mangifera odorata, Mangifera zeylanica and two cultivars of Mangifera indica 'Tommy-Kent' and 'Tommy Atkins' at two maturity stages. RESULTS: The results show that nutritional quality varied with the maturity stage and among the species...
April 13, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28403547/effects-of-dietary-supplementation-with-a-probiotic-enterococcus-faecium-dsm-7134-on-growth-performance-nutrient-digestibility-and-gut-health-status-in-weaning-pigs
#17
R X Lan, I H Kim
BACKGROUND: Probiotics have been suggested as desirable antibiotic alternatives to pigs by improving gut health and growth performance. However, limited studies of the effectiveness of E. faecium in weaning pigs, the objective of this study was to investigate the effects of E. faecium DSM 7134 supplementation on growth performance, nutrient digestibility, antioxidant parameters, volatile fatty acids concentration, intestinal histomorphology, and diarrhea score in weaning pig. RESULTS: E...
April 12, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28403529/new-hydrocolloid-based-emulsions-for-replacing-fat-in-panna-cottas-a-structural-and-sensory-study
#18
Jennifer Borreani, Isabel Hernando, Ana Salvador, Amparo Quiles
BACKGROUND: Dairy desserts are popular traditional products but because of their high calorie or fat content, they can be unsuitable for people who have certain dietary requirements. The aim of this study was to design panna cottas with similar organoleptic and textural properties to the traditional ones but with a lower fat content, by replacing part of the cream with new emulsions prepared with hydrocolloids (cellulose ethers), namely methylcellulose (MC) and hydroxypropyl methylcellulose (HPMC)...
April 12, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28402599/obtention-and-characterization-of-dried-gels-prepared-with-whey-proteins-honey-and-hydrocolloids-mixture
#19
Ana C Rodriguez, Martín R Torrez, Alba S Navarro, Diego K Yamul
BACKGROUND: Large amounts of honey and liquid whey derived from the dairy industry are produced in Argentina. Honey is exported in bulk and whey is transformed into whey protein concentrates and isolates. The objective of this work was to investigate the effect of pH, composition and storage time on the properties of dried gels with honey, whey proteins and hydrocolloids. RESULTS: Colour properties varied according to pH and composition. The fracture stress of the dried gels prepared with corn starch was higher than those prepared with guar gum in all conditions assayed...
April 12, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28402582/mechanical-and-structural-characterization-of-whey-protein-concentrate-montmorilonite-lycopene-films
#20
Rafaela C Pereira, João de Deus S Carneiro, Odílio B G Assis, Soraia V Borges
BACKGROUND: In the present study, the production and characterization of nanocomposites based on whey protein concentrate (WPC) and montmorilonite (MMT) incorporated of lycopene as functional substance is presented and discussed as an alternative biomaterial for potential use in foodstuff applications. A full factorial design with varying levels of MMT (0 and 20 g.Kg(-1) ) and lycopene (0, 60 and 120 g.Kg(-1) ) was used. Mechanical properties (tensile and puncture tests), thermal stability analysis, FT-IR vibrational spectroscopy and film morphology of the resulting materials were evaluated...
April 12, 2017: Journal of the Science of Food and Agriculture
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