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Journal of the Science of Food and Agriculture

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https://www.readbyqxmd.com/read/28233369/identification-of-the-compositional-changes-in-orthosiphon-stamineus-leaves-triggered-by-different-drying-techniques-using-1-h-nmr-metabolomics
#1
Raghunath Pariyani, Intan Safinar Ismail, Amalina Ahmad Azam, Faridah Abas, Khozirah Shaari
BACKGROUND: Java tea is a well-known herbal infusion prepared from the leaves of Orthosiphon stamineus (OS). The biological properties of tea are in direct correlation with the primary and secondary metabolite composition, which in turn largely depends on the choice of drying methods. Herein, the impact of three commonly used drying methods, i.e., shade, microwave and freeze drying on the metabolite composition and the antioxidant activity of OS leaves were investigated using (1) H NMR spectroscopy combined with multivariate classification and regression analysis tools...
February 23, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28233322/the-industrial-applications-of-cassava-current-status-opportunities-and-prospects
#2
REVIEW
Shubo Li, Yanyan Cui, Yuan Zhou, Zhiting Luo, Jidong Liu, Mouming Zhao
Cassava (Manihot esculenta Crantz) is a drought-tolerant, staple food crop that is grown in tropical and subtropical areas. As an important raw material, cassava is a valuable food source in developing countries, and extensively employed for producing starch, bioethanol and other bio-based products (e.g., feed, medicine, cosmetics, and biopolymers). In addition, these cassava-based industries also generate large quantities of wastes/residues, rich in organic matter and suspended solids, providing a great potential for bioconversion into value-added products via bio-refinery...
February 23, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28233321/assessment-of-calcium-and-zinc-accumulation-in-cultivated-and-wild-apples
#3
Liao Liao, Ting Fang, Baiquan Ma, Xianbao Deng, Li Zhao, Yuepeng Han
BACKGROUND: Apple is one of the staple fruits worldwide, which are a good source of mineral nutrients. However, little is known about genetic variation for mineral nutrition in apple germplasm. In this study, we report on the assessment of calcium and zinc contents in mature fruits of 378 apple cultivars and 39 wild relatives. Mineral concentrations were quantified using flame atomic absorption spectroscopy (FAAS). RESULTS: Both calcium and zinc accumulation showed great variation among accessions tested...
February 23, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28233313/effect-of-fortification-of-milk-with-omega-3-fatty-acids-phytosterols-and-soluble-fibre-on-the-sensory-physicochemical-and-microbiological-properties-of-milk
#4
N Veena, B Surendra Nath
BACKGROUND: Effect of addition of flaxseed oil (FO), phytosterols (PS) and polydextrose (PDX) on physicochemical and sensory properties of the milk was investigated as they are known to impart health benefits. RESULTS: For incorporating PS, a hydrophobic substance, FO and milk fat (MF) as an oil source, an emulsifier and PDX solution as an aqueous medium, were used for preparation of emulsion. Three emulsion formulations i.e. A (8 g PS, 8 g FO, 20 g PDX, 6 g MF), B (10 g PS, 10 g FO, 20 g PDX, 4 g MF) and C (12 g PS, 12 g FO, 20 g PDX, 2 g MF) were prepared and added individually to milk at a level of 50 g kg(-1) ...
February 23, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28230271/consumer-acceptance-and-aroma-characterization-of-navy-bean-phaseolus-vulgaris-powders-prepared-by-extrusion-and-conventional-processing-methods
#5
Edward Szczygiel, Janice B Harte, Gale M Strasburg, Sungeun Cho
BACKGROUND: Food products produced with bean ingredients are gaining in popularity among consumers due to the reported health benefits. Navy bean (Phaseolus vulgaris) powder produced through extrusion can be considered as a resource-efficient alternative to conventional methods, which often involve high water inputs. Therefore, navy bean powders produced with extrusion and conventional methods were assessed for the impact of processing on consumer liking in end-use products and odor-active compounds...
February 23, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28230263/recent-advances-in-%C3%AE-aminobutyric-acid-gaba-properties-in-pulses-an-overview
#6
REVIEW
Nooshin Nikmaram, B N Dar, Shahin Roohinejad, Mohamed Koubaa, Francisco J Barba, Greiner Ralf, Stuart K Johnson
Beans, peas, and lentils are all types of pulses that are extensively used as foods around the world due to their beneficial effects on human health including their low glycemic index, cholesterol lowering effects, ability to decrease the risk of heart diseases and their protective effects against some cancers. These health benefits are a result of their components such as bioactive proteins, dietary fibers, slowly digested starches, minerals and vitamins, and bioactive compounds. Among these bioactive compounds, γ-aminobutyric acid (GABA), a non-proteinogenic amino acid with numerous reported health benefits (e...
February 23, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28230255/changes-in-pectin-characteristics-during-the-ripening-of-jujube-fruit
#7
Shenghua Ding, Rongrong Wang, Yang Dan, Gaoyang Li, Shiyi Ou
BACKGROUND: Pectin is relative to fruit maturation and loss of flesh firmness. In this research, changes in pectin characteristics, including pectin content, neutral sugar compositions, molecular weight (Mw ) distribution, and degree of methyl esterification (DM), in six different growth stages (S1-S6) of jujube fruit were assessed. RESULTS: The growth of jujube fruit corresponded to an increase in water-soluble pectin (WSP), and a decrease in Na2 CO3 -soluble pectin (SSP)...
February 23, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28230238/integrating-straw-yield-and-quality-into-multi-dimensional-improvement-of-lentil-lens-culinaris
#8
Ashraf Alkhtib, J Wamatu, T Tolemariam Ejeta, B Rischkowsky
BACKGROUND: Lentil straw is an important source of fodder for livestock in Africa, South Asia and the Middle East. However, improvement programs of lentil do not pay attention to straw traits, neither are straw traits considered in release criteria of new varieties. This study aimed to determine whether straw traits can be integrated into multi-trait improvement of lentil. RESULTS: Wide genotypic variation (P<0.001) was found in grain yield, straw yield and nutritive value of straw...
February 23, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28220509/a-novel-symbiovar-aegeanense-of-the-genus-ensifer-nodulates-vigna-unguiculata
#9
Anastasia P Tampakaki, Christos T Fotiadis, Georgia Ntatsi, Dimitrios Savvas
BACKGROUND: Cowpea (Vigna unguiculata) forms nitrogen-fixing root nodules with diverse symbiotic bacteria, mainly slow-growing rhizobial species belonging to the genus Bradyrhizobium, although few studies have reported the isolation of fast-growing rhizobia under laboratory and field conditions. Despite that much research has been done on cowpea-nodulating bacteria in various countries around the world, very limited information is available on cowpea rhizobia in European soils. The aim of this study was to study the genetic and phenotypic diversity of indigenous cowpea-nodulating rhizobia in Greece...
February 21, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28220503/physicochemical-and-sensory-properties-of-marmalades-made-from-mixtures-of-fruits-and-under-exploited-andean-tubers
#10
Agustina M Lotufo Haddad, María Isabel Margalef, Margarita Armada, María Cristina Goldner
BACKGROUND: This work studies the added value to the Andean tuber crops through the production of jams. OBJECTIVES: 1. to study the sensory and instrumental characteristics of dietetic marmalades made with fruits and Andean tubers, 2. to research consumer's acceptability and emotional responses, 3. to assess the relationship between sensory and instrumental variables, and 4. to determine sensory, instrumental and emotional variables that influence the acceptability...
February 20, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28220491/prevalence-and-behavior-of-multidrug-resistant-salmonella-strains-on-raw-whole-and-cut-nopalitos-opuntia-ficus-indica-l-and-on-nopalitos-salads
#11
Carlos A Gómez-Aldapa, Eduardo J Gutiérrez-Alcántara, M Refugio Torres-Vitela, Esmeralda Rangel-Vargas, Angelica Villarruel-López, Javier Castro-Rosas
BACKGROUND: The presence of multidrug-resistant Salmonella in vegetables is a significant public health concern. Nopalito is a cactaceous that is commonly consumed either raw or cooked in Mexico and other countries. Presence of antibiotic-resistant Salmonella strains on raw whole nopalitos (RWN, without prickles), raw nopalitos cut into squares (RNCS) and in cooked nopalitos salads (CNS) samples was determined. In addition, the behavior of multidrug-resistant Salmonella isolates on RWN, RNCS and CNS at 25° ± 2 °C and 3° ± 2 °C was investigated...
February 20, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28218810/phytosterols-improve-immunity-and-exert-anti-inflammatory-activity-in-weaned-piglets
#12
Qiaoling Hu, Zhuo Zhao, Shenglin Fang, Yiwei Zhang, Jie Feng
BACKGROUND: Phytosterols (PS), plant-derived natural steroid compounds, are novel feed additives to regulate immune function and promote pig growth. This study was conducted to determine the effects of PS on the immune response of weaned piglets. RESULTS: One hundred and twenty crossbred (Duroc × Landrace × Yorkshire) piglets with an average initial weight of 9.58 ± 0.26 kg were randomly allotted to three treatments. Treatments consisted of a control, PS (0...
February 20, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28218804/detection-of-lunasin-in-quinoa-chenopodium-quinoa-willd-and-the-in-vitro-evaluation-of-its-antioxidant-and-anti-inflammatory-activities
#13
Guixing Ren, Yingying Zhu, Zhenxing Shi
BACKGROUND: Lunasin is a novel cancer preventive peptide that has been detected in various plants. However, the presence and bioactivity of lunasin in quinoa has not been demonstrated. RESULTS: Lunasin was detected in quinoa using UPLC-ESI-MS. The content in fifteen quinoa samples ranged from 1.01 × 10(-3) g kg(-1) dry seed to 4.89 × 10(-3) g kg(-1) dry seed. Significant differences (p<0.05) in lunasin content among different cultivars (yy22, xsg86, xsg59, yy30 and yy19) from the same area and the same cultivar from different areas (Hainan, Hebei and Shanxi provinces) were observed...
February 20, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28211621/changes-in-sugar-content-and-related-enzyme-activities-in-table-grape-vitis-vinifera-l-in-response-to-foliar-selenium-fertilizer
#14
Shuaimeng Zhu, Yinli Liang, Xiaojuan An, Fanchao Kong, Dekai Gao, Hongfei Yin
BACKGROUND: Spraying Se fertilizer is an effective way for Se-enriched fruit production. Sugar content in fruit is the major factor determining berry quality. However, changes in sugar metabolism in response to Se fertilizer are unclear. Hence, this study was conducted to identify the effects of Se fertilizer on sugar metabolism and related enzyme activities of grape berries. Additionally, production of leaves with and without Se fertilizer was also investigated. RESULTS: Acid invertase (AI) activity, total soluble sugar and Se content in berries, photosynthetic rate (Pn) in leaves produced under Se fertilizer treatments were higher than that of control...
February 17, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28205239/bioprocessing-of-common-beans-in-diets-for-tilapia-in-vivo-digestibility-and-antinutritional-factors
#15
Francisco Valdez-González, Roberto Gutiérrez-Dorado, Alfredo Hernández-Llamas, Manuel García-Ulloa, Luís Sánchez-Magaña, Breidy Cuevas-Rodríguez, Hervey Rodríguez-González
BACKGROUND: Bioprocessing of ingredients by solid-state fermentation is a low-cost technique for preparing diets. It is perfomed by adding microorganisms as Rhizopus oligosporus to the grains of bean, with minimal degradation of nutrients, and a significant improvement in digestibility. In particular, fermentation induces favorable changes in beans by reducing enzyme inhibitors, such as phytates and tannins. RESULTS: Fermentation significantly (P < 0.05) increased the protein content and digestibility of dry matter and protein compared with whole bean grains, and decreased the content of lipids, ash, and phytic acid...
February 16, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28205235/differences-in-the-nutrient-concentrations-in-vitro-methanogenic-potential-and-other-fermentative-traits-of-tropical-grasses-and-legumes-for-beef-production-systems-in-northern-australia
#16
Zoey Durmic, Carlos A Ramírez-Restrepo, Chris Gardiner, Christopher J O'Neill, Eman Hussein, Phillip E Vercoe
BACKGROUND: In northern Australia, beef cattle grazed extensively on tropical rangelands are responsible for 5 % of the nation's total greenhouse gas emissions. Methane (CH4 ) is a potent greenhouse gas and in grazing ruminants might be mitigated by selecting forages that, when consumed, produce less CH4 when fermented by rumen microbes. This study examined variability in the in vitro fermentation patterns including CH4 production of selected tropical grasses and legumes to identify candidates for CH4 mitigation in grazing livestock in northern Australia...
February 16, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28199023/analysis-of-%C3%AE-helix-unfolding-in-the-pine-nut-peptide-lys-cys-his-lys-pro-induced-by-pulsed-electric-field
#17
Jie Xing, Sitian Zhang, Mingdi Zhang, Songyi Lin
BACKGROUND: A variety of analytical techniques were applied to explore the effects of pulsed electric field (PEF) on the α-helix structural changes in the novel antioxidant peptide Lys-Cys-His-Lys-Pro (KCHKP, 611.76 Da). RESULTS: The relative α-helix content of the KCHKP peptide was significantly altered from 100% to 89.91 ± 0.97% when the electric pulse frequency was 1800 Hz and the field intensity was 10 kV cm(-1) . Moreover, the 1,1-diphenyl-2-pycryl-hydrazyl (DPPH) and 2,2-azinobis diammonium salt (ABTS) radical-scavenging activities of PEF-treated KCHKP were increased from 56...
February 15, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28199009/influence-of-different-yeast-lactic-acid-bacteria-combinations-on-the-aromatic-profile-of-red-bordeaux-wine
#18
Marine Gammacurta, Stéphanie Marchand, Virginie Moine, Gilles de Revel
BACKGROUND: The typical fruity aroma of red Bordeaux wines depends on the grape variety but also on microbiological processes, such as alcoholic and malolactic fermentations. These transformations involve respectively the yeast Saccharomyces cerevisiae and the lactic acid bacteria Oenococcus oeni. Both species play a central role in red winemaking but their quantitative and qualitative contribution to the revelation of the organoleptic qualities of wine has not yet been fully described...
February 15, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28194804/morphological-and-physiological-responses-of-different-wheat-genotypes-to-chilling-stress-a-cue-to-explain-yield-loss
#19
Pu-Fang Li, Bao-Luo Ma, You-Cai Xiong, Wen-Yuan Zhang
BACKGROUND: The eco-physiological mechanism of wheat yield loss resulting from chilling stress is a fundamental scientific issue. However, previous studies have focused on hexaploid wheats, and few studies on the morphological and physiological plasticity of wheat plants. Six different wheat genotypes were tested under chilling stress to investigate the physio-morphological parameters as well as the loss of grain yield in growth chambers. RESULTS: Chilling stress resulted in significant loss in grain yield in all genotypes...
February 14, 2017: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/28195339/effect-of-high-voltage-atmospheric-cold-plasma-on-white-grape-juice-quality
#20
S K Pankaj, Zifan Wan, William Colonna, Kevin M Keener
BACKGROUND: This study focusses on the effects of novel, non-thermal high voltage atmospheric cold plasma (HVACP) processing on the quality of grape juice. A quality based comparison of cold plasma treatment of white grape juice was done with thermal pasteurization treatment. RESULTS: HVACP treatment of grape juice at 80 kV for 4 min resulted in 7.4 log10 cfu/mL reduction of S. cerevisiae without any significant (p > 0.05) change in pH, acidity and electrical conductivity of the juice...
February 13, 2017: Journal of the Science of Food and Agriculture
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