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Journal of the Science of Food and Agriculture

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https://www.readbyqxmd.com/read/28106265/effects-of-self-carbon-dioxide-generation-material-for-active-packaging-on-ph-water-holding-capacity-meat-color-lipid-oxidation-and-microbial-growth-in-beef-during-cold-storage
#1
Seung Jae Lee, Seung Yun Lee, Gap Don Kim, Geun Bae Kim, Sang Keun Jin, Sun Jin Hur
BACKGROUND: Active packaging refers to the mixing of additive agents into packagingmaterials with the purpose of hold or extending food product quality and shelf life. The purpose of this study was to develop an easy and cheap active packaging in beef. Beef loin samples were divided into 3 packaging groups (C: ziplock bag-packaging, T1: vacuum-packaging, T2: active-packaging) and stored at 4 °C for 21 days. RESULTS: The water-holding capacity was significantly (p < 0...
January 20, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28106264/role-of-microbial-inoculation-and-industrial-by-product-phosphogypsum-on-growth-and-nutrients-uptake-of-maize-zea-mays-l-grown-in-calcareous-soil
#2
Abdul-Aziz R Al-Enazy, Saud S Al-Oud, Fahad N Al-Barakah, R A Adel, Usman
BACKGROUND: Alkaline soils with high calcium carbonate and low organic matter are deficient in plant nutrients availability. Use of organic and bio-fertilizers has been suggested to improve their properties. Therefore, a greenhouse experiment was conducted to evaluate the integrative role of phosphogypsum (PG; added at 0.0, 10, 30, and 50 g PG kg(-1) ), cow manure (CM; added at 50 g kg(-1) ) and mixed microbial inoculation (Incl; Azotobacter chroococcum, phosphate-solubilizing bacterium of Bacillus megaterium var...
January 20, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28106252/investigation-into-the-role-of-endogenous-abscisic-acid-during-ripening-of-imported-avocado-cv-hass
#3
Marjolaine D Meyer, Gemma A Chope, Leon A Terry
BACKGROUND: The importance of ethylene in avocado ripening has been extensively studied. In contrast, little is known about the possible role of abscisic acid (ABA). The present work studied the effect of 1-MCP (0.3 μL L(-1) ), e + (®) Ethylene Remover and the combination thereof on the quality of imported avocado cv. Hass fruit stored for 7 days at 12 °C. Ethylene production, respiration, firmness, colour, heptose (C7) sugars and ABA concentrations in mesocarp tissue were measured throughout storage...
January 20, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28106250/assessment-of-biochar-and-hydrochar-as-minor-to-major-constituents-of-growing-media-for-containerized-tomato-production
#4
Fernando Fornes, Rosa M Belda, Pascual Fernández de Córdova, Jaime Cebolla-Cornejo
BACKGROUND: Chars are emerging materials as constituents of growth media. However, chars of different origin differ in their characteristics and more studies are needed to ratify them for such role. The characteristics of coir mixed with 0, 10, 25, 50, 75, and 100 (% v:v) of two biochars, from forest waste (BCH-FW) and from olive mill waste (BCH-OMW), and one hydrochar, from forest waste (HYD-FW), and their effects on growth, yield and fruit quality of two tomato cultivars (Gransol RZ and Cuarenteno) were assessed...
January 20, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28106249/targeted-forcing-improves-quality-nutritional-and-health-value-of-sweet-cherry-fruit
#5
Verena Overbeck, Michaela Schmitz, Michael Blanke
BACKGROUND: Trade and consumers alike require premium quality cherries with high nutritional and health values preferably of local origin. While early fruit imports cannot supply such fruit, a new technology of forcing cherry emerged for an early local supply by covering the crop in spring. In the apparent scarcity of data on the resulting fruit quality, fruit characteristics of forced cherries were compared with those without cover RESULTS: Size and weight of forced cherry fruit were successfully increased by 6-14%...
January 20, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28106248/bacterial-impregnation-of-mineral-fertilizers-improves-yield-and-nutrient-use-efficiency-of-wheat
#6
Shakeel Ahmad, Muhammad Imran, Sabir Hussain, Sajid Mahmood, Azhar Hussain, Muhammad Hasnain
BACKGROUND: The fertilizer use efficiency (FUE) of agricultural crops is generally low which results in poor crop yields and low economic benefits to the farmers. Among the various approaches used to enhance FUE, impregnation of mineral fertilizers with plant growth promoting bacteria (PGPB) is attracting a worldwide attention. The present study was aimed to improve growth, yield and nutrient use efficiency of wheat by bacterially impregnated mineral fertilizers. RESULTS: Results of the pot study revealed that impregnation of diammonium phosphate (DAP) and urea with PGPB was helpful in enhancing the growth, yield, photosynthetic rate, nitrogen use efficiency (NUE) and phosphorus use efficiency (PUE) of wheat...
January 20, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28102029/biochemical-markers-to-predict-internal-browning-disorders-in-rocha-pear-during-storage-under-high-co2
#7
Teresa Deuchande, Christian Larrigaudière, Umbelina Guterres, Susana M P Carvalho, Marta W Vasconcelos
BACKGROUND: The aim of this study was to identify biochemical markers to predict internal browning disorders (IBD) in 'Rocha' pear. Fruit from five orchards were stored for 45 days under cold air followed by 100 days in browning inducing controlled atmosphere (CA) conditions (1 kPa O2 + 10 kPa CO2 ). RESULTS: Relationships between concentrations of ethanol (EtOH), acetaldehyde (AcDH), ascorbic acid (AA) and the activities of peroxidase (POX) and polyphenoloxidase (PPO) and IBD incidence were established...
January 19, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28102019/shrimp-tropomyosin-retains-antibody-reactivity-after-exposure-to-acidic-condition
#8
Adeseye Lasekan, Hanjuan Cao, Soheila Maleki, Balunkeswar Balu Nayak
BACKGROUND: Although shrimp can be found in certain high acid food matrix, the allergenic capacity of shrimp tropomyosin exposed to low pH condition has not been fully clarified. Thus, a model marinade comprising white vinegar adjusted to different pH was used to determine the effects of acid-induced denaturation on the immunoreactivity of tropomyosin. RESULTS: Whole shrimp experienced either swelling or shrinkage after marination depending on the vinegar pH and the final muscle pH...
January 19, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28102016/mechanical-and-barrier-properties-of-maize-starch-gelatin-composite-film-effects-of-amylose-content
#9
Kun Wang, Wenhang Wang, Ran Ye, Jingdong Xiao, Yaowei Liu, Junsheng Ding, Shaojing Zhang, Anjun Liu
BACKGROUND: In order to obtain new reinforcing bio-fillers to improve the physicochemical properties of gelatin based film, three types of maize starches: waxy maize starch (Ap), normal starch (Ns), and high amylose starch (Al), were incorporated into the gelatin films, and their properties were investigated, focusing on the impact of amylose content. RESULTS: The thickness, opacity and roughness of gelatin films increased depending upon amylose content along with the concentration of starch...
January 19, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28101943/stability-of-color-in-spanish-style-green-table-olives-pasteurized-and-stored-in-plastic-containers
#10
Antonio Higinio Sánchez, Antonio López-López, Víctor Manuel Beato, Antonio de Castro, Alfredo Montaño
BACKGROUND: There is an increasing interest in the use of pasteurizable plastic packaging by the olive industry. In order to investigate the change from traditional glass or varnished can containers to plastic packaging, the proper plastic material that is compatible with fermented olives while maintaining color quality during pasteurization treatment and storage must be selected. This work is focused on color stability in two distinct pasteurizable plastic containers with different oxygen permeability...
January 19, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28098357/partial-purification-characterization-and-thermal-inactivation-kinetics-of-peroxidase-and-polyphenol-oxidase-isolated-from-kalipatti-sapota-manilkara-zapota
#11
Vishwasrao Chandrahas, Chakraborty Snehasis, Ananthanarayan Laxmi
BACKGROUND: The extraction, purification, and characterization of peroxidase (POD) and polyphenol oxidase (PPO) were studied for Kalipatti sapota fruit. The crude enzyme extract was partially purified by ammonium sulfate precipitation followed by BioGel P100 size exclusion and Unosphere Q anion-exchange chromatography. RESULTS: Molecular weights of 20 kDa (POD) and 24 kDa (PPO) were indicated by SDS-PAGE. A single band was observed on SDS-PAGE with a fold purity of 10...
January 18, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28098355/a-comparative-study-on-composition-and-antioxidant-activities-of-supercritical-carbon-dioxide-hexane-and-ethanol-extracts-from-blackberry-rubus-fruticosus-growing-in-poland
#12
Anna Wajs-Bonikowska, Agnieszka Stobiecka, Radosław Bonikowski, Agnieszka Krajewska, Magdalena Sikora, Józef Kula
BACKGROUND: Large quantities of blackberry seeds are produced as a pomace during the processing of juice and jam production - this by-product is a very interesting raw material both for oil manufacturing and as a source of bioactive compounds. In this work the composition, yield and antioxidant activity of three types of Rubus fructicosus pomace extracts isolated by liquid-extraction using solvents of different polarity, as well with supercritical CO2 fluid extraction have been compared...
January 18, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28098345/effect-of-sequential-fermentations-and-grape-cultivars-on-volatile-compounds-and-sensory-profiles-of-danish-wines
#13
Jing Liu, Nils Arneborg, Torben B Toldam-Andersen, Mikael A Petersen, Wender L P Bredie
BACKGROUND: There has been increasing interest in the use of selected non-Saccharomyces yeasts in co-culture with Saccharomyces cerevisiae. In this work, three non-Saccharomyces yeast strains (Metschnikowia viticola, Metschnikowia fructicola and Hanseniaspora uvarum) indigenously isolated in Denmark, were used in sequential fermentations with S. cerevisiae on three cool-climate grape cultivars Bolero, Rondo and Regent. During the fermentations, the yeast growth was determined as well as key oenological parameters, volatile compounds and sensory properties of finished rosé wines...
January 18, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28098337/characterisation-of-the-enzymatic-properties-of-mpapr1-an-aspartic-protease-secreted-by-the-wine-yeast-metschnikowia-pulcherrima
#14
Louwrens Wiid Theron, Marina Bely, Benoit Divol
BACKGROUND: MpAPr1, encoding an acid protease from the wine yeast Metschnikowia pulcherrima IWBT Y1123, was previously isolated and shown to display potential activity against casein and grape proteins. However, its characterisation remained partial. RESULTS: MpAPr1 was cloned into the pGAPZαA vector and transformed into Komagataella pastoris X33 for heterologous expression. After verification of activity, the enzyme properties were characterised. Protease activity within the concentrated supernatant was retained over a pH range of 3...
January 18, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28093767/progress-in-modification-of-sunflower-oil-to-expand-its-industrial-value
#15
REVIEW
Saeed Rauf, Nazia Jamil, Sultan Ali Tariq, Maria Khan, Maria Kausar, YalcinKaya
Increasing the sunflower seed oil content as well as improving its quality makes it compatible for industrial demands. This is an important breeding objective of sunflower which increases its market value and ensures high returns for the producers. The present review focuses on determining the progress of improving sunflower seed oil content and modifying its quality by empirical and advanced molecular breeding methods. It is known that the oil content and quality of sunflower oil have been altered through empirical selection methods and mutation breeding programs in various parts of the world...
January 17, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28078724/application-of-multi-block-analysis-and-mixture-design-with-process-variable-for-development-of-chocolate-cake-containing-yacon-smallanthus-sonchifolius-and-maca-lepidium-meyenii
#16
Marcela Marta Lazaretti Tormena, Luana Tabalipa de Medeiros, Patrícia Casarin de Lima, Gabriela Possebon, Renata Hernandez Barros Fuchs, Evandro Bona
BACKGROUND: In this study, a chocolate cake formulation was developed with partial substitution of wheat flour by yacon and maca flour. A simplex-centroid design was applied to determine the proportions of the three flours and the amount of water was included as a process variable at three distinct levels. According to the overall acceptability of the cakes, the tasters were separated into two groups using the k-means. RESULTS: After segmentation, regression models were constructed for overall acceptability of each group, it is obtained R(2)ajusted values of 92...
January 12, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28078783/new-propolis-type-from-northeast-brazil-chemical-composition-antioxidant-activity-and-botanical-origin
#17
Joselena M Ferreira, Caroline C Fernandes-Silva, Antonio Salatino, Giuseppina Negri, Dejair Message
BACKGROUND: Propolis is a bee product with wide diversity of biological activity. It has complex composition, which is dependent on its botanical source. The present work aimed at determining the chemical profile, antioxidant activity and botanical origin of two samples of a propolis type from two locations of the state of Rio Grande do Norte (RN, northeast Brazil). RESULTS: The standard chemical characteristics of the RN propolis are similar or superior to the internationally marketed Brazilian green propolis...
January 11, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28078684/characterization-of-protease-and-effects-of-temperature-and-salinity-on-the-biochemical-changes-during-fermentation-of-antarctic-krill
#18
Yan Fan, Lili Tian, Yong Xue, Zhaojie Li, Hu Hou, Changhu Xue
BACKGROUND: Despite their abundance, the Antarctic krill are underutilized for numerous difficulties in commercial processing. Ideally, fermentation technology can be applied to transform them into a popular condiment. Besides the exploration on protease properties, this study aimed to evaluate proteinase activities, pH of the fermentation broth, amino nitrogen, and histamine formed during fermentation at different temperatures and salt treatments. RESULTS: Even though activity of the Antarctic krill protease reached a maximum at 40 °C and pH 7, it was stable at 30 °C and pH 7-9...
January 11, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28074603/supplementing-diet-with-manitoba-lingonberry-juice-reduces-kidney-ischemia-reperfusion-injury
#19
Cara K Isaak, Pengqi Wang, Suvira Prashar, Karmin O, Daniel C W Brown, Samir C Debnath, Yaw L Siow
BACKGROUND: Lingonberry (Vaccinium vitis-idaea L.) contains high levels of anthocyanins which are bioavailable in the kidney and may be protective against ischemia-reperfusion (IR)-induced acute kidney injury. This study investigated the effect of lingonberry juice on IR-induced stress-activated signaling pathway and inflammatory response in the kidney. RESULTS: Sprague-Dawley rats subjected to kidney IR had significantly impaired kidney function, with increased activation of the JNK signaling pathway and increased inflammatory response, measured using a multiplex panel containing an extensive array of inflammatory biomarkers...
January 11, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28071810/deer-leather-analysis-of-the-microstructure-affecting-pebble
#20
Hannah C Wells, Katie Sizeland, Sue M Cooper, Nigel Kirby, Adrian Hawley, Stephen Mudie, Richard G Haverkamp
BACKGROUND: Deer leather has a characteristic pattern, referred to as "pebble", that is accorded such importance that a lack of it renders a leather defective. Synchrotron-based small angle X-ray scattering (SAXS), ultrasonic imaging, scanning electron microscopy, and tear tests are used to investigate the structural characteristics of well pebbled and poorly pebbled cervine leathers. RESULTS: Poorly pebbled leather has a less open structure in the upper grain region than well pebbled leather...
January 10, 2017: Journal of the Science of Food and Agriculture
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