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https://www.readbyqxmd.com/read/28799026/obliquely-deposited-gold-nanohelices-on-lithography-free-prepared-nanoseeded-surfaces
#1
Yi-Jun Jen, Wei-Chih Liu, Chih-Yung Hsiao, Po-Cheng Lin, Chia-Liang Yu, Teh-Li Chan
A substrate surface on which gold particles are distributed is prepared by annealing an ultra-thin gold film to enable glancing angle deposition. By cooling the substrate and controlling its spin rate, two spiral-like and one screw-like gold nanohelix arrays are grown upon the seeded surfaces. The mean helix radius and pitch length are reduced to 17 and 55 nm, respectively. The g-factor of the three nanohelix arrays is measured here and associated circular dichroism peak blue shifts occur as the gold helices shrink...
August 10, 2017: Nanoscale Research Letters
https://www.readbyqxmd.com/read/28764759/effect-of-acetic-acid-on-ethanol-production-by-zymomonas-mobilis-mutant-strains-through-continuous-adaptation
#2
Yu-Fan Liu, Chia-Wen Hsieh, Yao-Sheng Chang, Being-Sun Wung
BACKGROUND: Acetic acid is a predominant by-product of lignocellulosic biofuel process, which inhibits microbial biocatalysts. Development of bacterial strains that are tolerant to acetic acid is challenging due to poor understanding of the underlying molecular mechanisms. RESULTS: In this study, we generated and characterized two acetic acid-tolerant strains of Zymomonas mobilis using N-methyl-N'-nitro-N-nitrosoguanidine (NTG)-acetate adaptive breeding. Two mutants, ZMA-142 and ZMA-167, were obtained, showing a significant growth rate at a concentration of 244 mM sodium acetate, while the growth of Z...
August 1, 2017: BMC Biotechnology
https://www.readbyqxmd.com/read/28755594/characteristics-and-applications-of-ecological-soil-substrate-for-rocky-slope-vegetation-in-cold-and-high-altitude-areas
#3
Hua Xu, Tian-Bin Li, Jian-Nan Chen, Chia-Nan Liu, Xiong-Hua Zhou, Lei Xia
Ecological restoration of steep rocky slopes generated by road cutting is usually difficult especially, in the cold and high-altitude environment, which is unfavorable for the growth of vegetation. With the focus on slope vegetation, an ecological soil substrate, synthesized with polyacrylamide (PAM), carboxymethyl cellulose (CMC), and Fly ash (FA) as the main components, was developed for spray seeding on the rocky slopes in cold and high-altitude regions, to provide a favorable environment for vegetation growth...
July 26, 2017: Science of the Total Environment
https://www.readbyqxmd.com/read/28720954/effect-of-partial-substitution-of-gluten-free-flour-mixtures-with-chia-salvia-hispanica-l-flour-on-quality-of-gluten-free-noodles
#4
Hacer Levent
In this study, chia seed flour (CSF) was used in gluten-free noodle formulation at different levels (0, 10, 20 and 30%, w/w) with and without diacetyl tartaric esters of mono (and di) glycerides (DATEM). Chemical, nutritional, sensory properties and cooking quality of gluten-free noodle samples were investigated. Protein, fat, antioxidant activity and total phenolic content of gluten-free noodles increased by 1.7, 5.5, 2.6 and 2.0 times at 30% usage level of CSF as compared to control sample. Phytic acid and phytate phosphorus content increased from 168...
June 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28651695/dietary-salba-salvia-hispanica-l-improves-the-altered-metabolic-fate-of-glucose-and-reduces-increased-collagen-deposition-in-the-heart-of-insulin-resistant-rats
#5
Agustina Creus, Adriana Benmelej, Noelia Villafañe, Yolanda B Lombardo
This study reports the effects of dietary Salba (chia) seeds on the mechanisms underlying impaired glucose metabolism in the heart of dyslipemic insulin-resistant rats fed a sucrose-rich diet (SRD). Wistar rats were fed a SRD for 3 months. Afterwards, half the animals continued with the SRD; in the other half's diet chia seeds replaced corn oil (CO) for three months (SRD+chia). In the control group, corn starch replaced sucrose. The replacement of CO by chia seeds in the SRD restored the activities of key enzymes involved in heart glucose metabolism decreasing fatty acid oxidation...
June 2017: Prostaglandins, Leukotrienes, and Essential Fatty Acids
https://www.readbyqxmd.com/read/28651384/agaricus-bisporus-production-on-substrates-pasteurized-by-self-heating
#6
Stephania Colmenares-Cruz, José E Sánchez, Javier Valle-Mora
The aim of this work was to determine if the self-heating pasteurization procedure is technically applicable to the cultivation of Agaricus bisporus. Firstly the substrates alone (corncob, Pangola grass and a mixture of both ingredients with wood shavings) were tested. Two supplementation trials were then undertaken using soybean, wheat bran, sheep manure, sesame seed, black bean and chia. Highest production values (BE = 176.3% and Y = 26.6 kg/m(2)) were obtained using a 9% supplement, with a formula consisting of 25% each of soybean, black bean, wheat bran and chia, added at spawning and at casing...
December 2017: AMB Express
https://www.readbyqxmd.com/read/28646829/chia-seeds-salvia-hispanica-health-promoting-properties-and-therapeutic-applications-%C3%A2-a-review
#7
Katarzyna Marcinek, Zbigniew Krejpcio
Chia has been known for over 5,500 years. Chia seeds were one of the most important components of the diet of Mayas and Aztecs. The chemical composition and technological properties of chia give the plant a high nutritional potential. Chia is a good source of polyunsaturated fatty acids: omega-3 and omega-6, soluble dietary fiber. It also contains appreciable amount of proteins and phytochemicals. Nutritional value of chia is the reason why it is used in prophylaxis of several non-infectious diseases such as obesity, hypertension, cardiovascular diseases (CVDs), cancer and diabetes...
2017: Roczniki Państwowego Zakładu Higieny
https://www.readbyqxmd.com/read/28601449/fatty-acid-profile-of-goat-milk-in-diets-supplemented-with-chia-seed-salvia-hispanica-l
#8
B Schettino, S Vega, R Gutiérrez, A Escobar, J Romero, E Domínguez, M González-Ronquillo
Chia seed (Salvia hispanica L.) is the greatest known plant source of n-3 α-linolenic acid. The present study evaluated the effects of 3 inclusion levels of chia seed [zero (control); low, 2.7% (CLow); and high, 5.5% (CHigh)] in diets of dairy goats on milk yield and fatty acid profile. Nine Saanen dairy goats in the last third of lactation period, live weight 38 ± 8.7 kg, housed in metabolic cages, were fed iso-proteic and iso-energetic (160 g of crude protein/d and 11 MJ of metabolizable energy/d) diets...
June 7, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28551210/nanoencapsulation-of-chia-seed-oil-with-chia-mucilage-salvia-hispanica-l-as-wall-material-characterization-and-stability-evaluation
#9
Camila de Campo, Priscilla Pereira Dos Santos, Tania Maria Haas Costa, Karina Paese, Silvia Stanisçuaski Guterres, Alessandro de Oliveira Rios, Simone Hickmann Flôres
In this study, chia seed oil was nanoencapsulated utilizing chia seed mucilage (CSM) as wall material. The viscosity, encapsulation efficiency, loading capacity, transmission electron microscopy, FT-IR spectroscopy and thermal properties of chia seed oil nanoparticles (CSO-NP) were performed after preparation. Particle size, zeta potential, span value, and pH of CSO-NP and oxidation stability of nanoencapsulated and unencapsulated oil were evaluated during 28days of storage at accelerated conditions (40°C)...
November 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28490078/characterization-of-phenolic-compounds-in-chia-salvia-hispanica-l-seeds-fiber-flour-and-oil
#10
Sheila Cristina Oliveira-Alves, Débora Barbosa Vendramini-Costa, Cinthia Baú Betim Cazarin, Mário Roberto Maróstica Júnior, João Pedro Borges Ferreira, Andreia Bento Silva, Marcelo Alexandre Prado, Maria Rosário Bronze
The consumption of chia seeds products has increased recently and it has been suggested that the inclusion of this functional food in a daily human diet could contribute to improve consumers' health. However, a better knowledge about the composition of these products is mandatory. In this work, the phenolic compounds from commercial samples of chia seed, fiber flour and oil were extracted using an ultrasound-assisted methodology and were separated and identified by high-performance liquid chromatography coupled to a mass spectrometer...
October 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28481437/effective-light-directed-assembly-of-building-blocks-with-microscale-control
#11
Ngoc-Duy Dinh, Rongcong Luo, Maria Tankeh Asuncion Christine, Weikang Nicholas Lin, Wei-Chuan Shih, James Cho-Hong Goh, Chia-Hung Chen
Light-directed forces have been widely used to pattern micro/nanoscale objects with precise control, forming functional assemblies. However, a substantial laser intensity is required to generate sufficient optical gradient forces to move a small object in a certain direction, causing limited throughput for applications. A high-throughput light-directed assembly is demonstrated as a printing technology by introducing gold nanorods to induce thermal convection flows that move microparticles (diameter = 40 µm to several hundreds of micrometers) to specific light-guided locations, forming desired patterns...
June 2017: Small
https://www.readbyqxmd.com/read/28460950/spray-dried-microparticles-of-chia-oil-using-emulsion-stabilized-by-whey-protein-concentrate-and-pectin-by-electrostatic-deposition
#12
C Noello, A G S Carvalho, V M Silva, M D Hubinger
Chia seed oil has a high content of α-linolenic acid (60%) and linoleic acid (20%). Use of this oil in different products is limited due to its liquid state, and the presence of insaturation is a trigger for oxidation. In this context, to facilitate the incorporation of chia oil in food products and increase its protection against oxidation, the aim of this work was to produce chia oil microparticles by spray drying using emulsions stabilized by whey protein concentrate (ζ-potential +13.4 at pH3.8) and pectin (ζ-potential -40...
November 2016: Food Research International
https://www.readbyqxmd.com/read/28444370/identification-of-hda15-pif1-as-a-key-repression-module-directing-the-transcriptional-network-of-seed-germination-in-the-dark
#13
Dachuan Gu, Chia-Yang Chen, Minglei Zhao, Linmao Zhao, Xuewu Duan, Jun Duan, Keqiang Wu, Xuncheng Liu
Light is a major external factor in regulating seed germination. Photoreceptor phytochrome B (PHYB) plays a predominant role in promoting seed germination in the initial phase after imbibition, partially by repressing phytochrome-interacting factor1 (PIF1). However, the mechanism underlying the PHYB-PIF1-mediated transcription regulation remains largely unclear. Here, we identified that histone deacetylase15 (HDA15) is a negative component of PHYB-dependent seed germination. Overexpression of HDA15 in Arabidopsis inhibits PHYB-dependent seed germination, whereas loss of function of HDA15 increases PHYB-dependent seed germination...
April 21, 2017: Nucleic Acids Research
https://www.readbyqxmd.com/read/28425219/resistance-modifying-activity-in-vinblastine-resistant-human-breast-cancer-cells-by-oligosaccharides-obtained-from-mucilage-of-chia-seeds-salvia-hispanica
#14
Daniel G Rosas-Ramírez, Mabel Fragoso-Serrano, Sonia Escandón-Rivera, Alba L Vargas-Ramírez, Juan P Reyes-Grajeda, Manuel Soriano-García
The multidrug resistance (MDR) phenotype is considered as a major cause of the failure in cancer chemotherapy. The acquisition of MDR is usually mediated by the overexpression of drug efflux pumps of a P-glycoprotein. The development of compounds that mitigate the MDR phenotype by modulating the activity of these transport proteins is an important yet elusive target. Here, we screened the saponification and enzymatic degradation products from Salvia hispanica seed's mucilage to discover modulating compounds of the acquired resistance to chemotherapeutic in breast cancer cells...
June 2017: Phytotherapy Research: PTR
https://www.readbyqxmd.com/read/28347301/does-social-distinction-contribute-to-socioeconomic-inequalities-in-diet-the-case-of-superfoods-consumption
#15
Joost Oude Groeniger, Frank J van Lenthe, Mariëlle A Beenackers, Carlijn B M Kamphuis
BACKGROUND: The key mechanisms underlying socioeconomic inequalities in dietary intake are still poorly understood, hampering the development of interventions. An important, but sparsely mentioned mechanism is that of 'social distinction', whereby those in a higher socioeconomic position adopt dietary patterns by which they can distinguish themselves from lower socioeconomic groups. We investigated the importance of distinction as a mechanism, by testing the socioeconomic gradient in the consumption of so-called 'superfoods' and the contribution of a well-established indicator of distinction, cultural participation...
March 27, 2017: International Journal of Behavioral Nutrition and Physical Activity
https://www.readbyqxmd.com/read/28318456/international-outbreak-of-multiple-salmonella-serotype-infections-linked-to-sprouted-chia-seed-powder-usa-and-canada-2013-2014
#16
R R Harvey, K E Heiman Marshall, L Burnworth, M Hamel, J Tataryn, J Cutler, K Meghnath, A Wellman, K Irvin, L Isaac, K Chau, A Locas, J Kohl, P A Huth, D Nicholas, E Traphagen, K Soto, L Mank, K Holmes-Talbot, M Needham, A Barnes, B Adcock, L Honish, L Chui, M Taylor, C Gaulin, S Bekal, B Warshawsky, L Hobbs, L R Tschetter, A Surin, S Lance, M E Wise, I Williams, L Gieraltowski
Salmonella is a leading cause of bacterial foodborne illness. We report the collaborative investigative efforts of US and Canadian public health officials during the 2013-2014 international outbreak of multiple Salmonella serotype infections linked to sprouted chia seed powder. The investigation included open-ended interviews of ill persons, traceback, product testing, facility inspections, and trace forward. Ninety-four persons infected with outbreak strains from 16 states and four provinces were identified; 21% were hospitalized and none died...
June 2017: Epidemiology and Infection
https://www.readbyqxmd.com/read/28317740/physicochemical-and-thermal-characteristics-of-australian-chia-seed-oil
#17
Yakindra Prasad Timilsena, Jitraporn Vongsvivut, Raju Adhikari, Benu Adhikari
Physicochemical and thermal characteristics of Australian chia seed oil (CSO) were studied. The specific gravity, viscosity and refractive index of CSO at ambient temperature were 0.93, 43.2mPa.s and 1.48, respectively. The acid, peroxide, saponification and iodine values and unsaponifiable matter content of CSO were 2.54gKOH/kg oil, 4.33meqO2/kg oil, 197gKOH/kg oil, 204gI2/kg oil and 1.12%, respectively. α-linolenic acid is the most abundant fatty acid comprising (64.39% of total oil) followed by linoleic acid (21...
August 1, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28274428/addition-of-chia-seed-mucilage-for-reduction-of-fat-content-in-bread-and-cakes
#18
Sibele Santos Fernandes, Myriam de Las Mercedes Salas-Mellado
In this study, breads and chocolate cakes were prepared with different levels of chia mucilage dried at 50°C or lyophilized as fat, resulting in healthier products. Results indicated that breads and chocolate cakes made with chia mucilage can replace up to 50% of fat without affecting the technological and physical characteristics. The replacement of 75% of fat, for both types of mucilage, had a significant reduction in fat content of 56.6% in breads and 51.6% in cakes, producing a slight decrease in the technological characteristics of the products...
July 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28267913/ultrasonic-removal-of-mucilage-for-pressurized-liquid-extraction-of-omega-3-rich-oil-from-chia-seeds-salvia-hispanica-l
#19
Natalia Castejón, Pilar Luna, Francisco J Señoráns
Chia (Salvia hispanica L.) seeds contain an important amount of edible oil rich in omega-3 fatty acids. Fast and alternative extraction techniques based on polar solvents, such as ethanol or water, have become relevant for oil extraction in recent years. However, chia seeds also contain a large amount of soluble fiber or mucilage, which makes difficult an oil extraction process with polar solvents. For that reason, the aim of this study was to develop a gentle extraction method for mucilage in order to extract chia oil with polar solvents using pressurized liquids and compare with organic solvent extraction...
March 29, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28218805/functional-nonredundancy-of-elephants-in-a-disturbed-tropical-forest
#20
Nitin Sekar, Chia-Lo Lee, Raman Sukumar
Conservation efforts are often motivated by the threat of global extinction. Yet if conservationists had more information suggesting that the local extirpation of individual species could lead to undesirable ecological effects, conservationists might more frequently attempt to protect or restore such species across their range even if they are not in danger of global extinction. Scientists have seldom measured or quantitatively predicted the functional consequences of species loss, even for large, extinction-prone species that theory suggests should be functionally unique...
February 20, 2017: Conservation Biology: the Journal of the Society for Conservation Biology
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