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https://www.readbyqxmd.com/read/28339105/influence-of-extrusion-cooking-on-in-vitro-digestibility-physical-and-sensory-properties-of-brazilian-pine-seeds-flour-araucaria-angustifolia
#1
Manoela Estefânea Boff Zortéa-Guidolin, Carlos Wanderlei Piler de Carvalho, Rossana Catie Bueno de Godoy, Ivo Mottin Demiate, Agnes Paula Scheer
Brazilian pine seeds (pinhão) are gluten-free products derived from Araucaria angustifolia. The commercialization of these seeds is essentially associated with a low level of industrialization. In this context, extrusion cooking is a potential alternative for preparing extrudates of pinhão as a food product, which can be easily digested and is ready for human consumption. Brazilian pine seeds flour was processed in a single-screw extruder following a central composite rotatable design. Three factors (independent parameters) were considered: moisture content (14 to 22 g/100 g), screw speed (100 to 250 rpm), and temperature in the 3rd heating zone (120 to 200 °C)...
March 24, 2017: Journal of Food Science
https://www.readbyqxmd.com/read/28334859/neurocognitive-function-of-school-aged-hiv-infected-children-in-enugu-nigeria
#2
Kenechukwu K Iloh, Ifeoma J Emodi, Ngozi S Ibeziako, Anthony N Ikefuna, Agozie C Ubesie, Ogochukwu N Iloh, Gideon C Ilechukwu, Adaeze C Ayuk
Background: Evidence has shown neurocognitive problems often exist among human immunodeficiency virus (HIV)-infected children. There are limited data for children in Nigeria. Methods: This was a cross-sectional study of 100 school-aged perinatally HIV-infected children seen in the paediatric HIV clinic and age/sex-matched controls from the general paediatric clinic. Neuro-cognitive functioning was assessed using the Raven's progressive matrices (RPM) that has been adapted for the Nigerian population...
February 20, 2017: Journal of Tropical Pediatrics
https://www.readbyqxmd.com/read/28330302/production-of-bioherbicide-by-phoma-sp-in-a-stirred-tank-bioreactor
#3
Thiarles Brun, Jéssica E Rabuske, Izelmar Todero, Thiago C Almeida, Jair J D Junior, Gustavo Ariotti, Tássia Confortin, Jonas A Arnemann, Raquel C Kuhn, Jerson V C Guedes, Marcio A Mazutti
The objective of this work was to produce an herbicide by submerged fermentation in a stirred-tank bioreactor and to assess the potential herbicidal in pre-emergence, post-emergence, and in a detached leaves of Cucumis sativus var species. wisconsin (cucumber) and Sorghum bicolor (sorghum) species. Fermentations were carried out in a stirred-tank bioreactor with useful volume of 3L. Stirring rate (40, 50, and 60 rpm) and aeration (1, 2 and 3 vvm) were the variables studied for bioherbicide production. Fermented broth was fractioned with different solvents to identify the molecules produced by the fungus in a multi-dimensional gas chromatograph system...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330298/biodegradation-of-used-engine-oil-by-novel-strains-of-ochrobactrum-anthropi-hm-1-and-citrobacter-freundii-hm-2-isolated-from-oil-contaminated-soil
#4
Haytham M M Ibrahim
Used engine oil (UEO) constitutes a serious environmental problem due to the difficulty of disposal off or reuse. Ten bacterial strains with biodegradation potential were isolated from UEO-contaminated soil sample using enrichment technique. Two strains which exhibited the highest degradation %, 51 ± 1.2 and 48 ± 1.5, respectively, were selected. Based on the morphological, biochemical characteristics and 16S rRNA sequence analysis, they were identified as Ochrobactrum anthropi HM-1 (accession no: KR360745) and Citrobacter freundii HM-2 (accession no: KR360746)...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330256/immobilized-lipase-catalyzing-glucose-stearate-synthesis-and-their-surfactant-properties-analysis
#5
A Maria Sebatini, Manisha Jain, P Radha, S Kiruthika, Krishnamurthi Tamilarasan
Sugar fatty acid esters are practical importance and have a variety of applications that include surfactants and as an emulsifying agent. In this study, we report glucose stearate synthesis using lipase-Fe3O4 nanoparticles catalyst. The influence of various reaction factors, such as silica gel concentration, molar ratio of sugar/acid, reaction temperature and speed of agitation on esterification by immobilized enzyme was analyzed. The glucose stearate esterification degree of 87.2 % was obtained under the optimized condition: 1:2 molar ratio of glucose/stearic acid, 2 % (w/v) of silica gel at 120 rpm and 40 °C...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330255/ascorbyl-palmitate-synthesis-in-an-organic-solvent-system-using-a-celite-immobilized-commercial-lipase-lipolase-100l
#6
Shivika Sharma, Kriti Kanwar, Shamsher S Kanwar
Ascorbyl palmitate was synthesized using a Celite-immobilized commercial lipase (Lipolase 100L) in dimethylsulfoxide (DMSO) as an organic solvent system. Lipase immobilized by surface adsorption onto Celite 545 matrix and subsequently exposed to 1 % glutaraldehyde showed 75 % binding of protein. The Celite-bound lipase was optimally active at 75 °C and pH 8.5 under shaking and showed maximum hydrolytic activity toward p-NPP as a substrate. The bound lipase was found to be stimulated only in the presence of Al(3+) and EDTA...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330223/multi-response-optimization-for-enhanced-xylitol-production-by-debaryomyces-nepalensis-in-bioreactor
#7
J Sharon Mano Pappu, Sathyanarayana N Gummadi
In this study, the optimization of different process variables-pH (4-6), aeration rate (200-550 rpm) and agitation rate (0.6-1.8 vvm) were investigated using rotating simplex method and uniform design method to enhance xylitol production from xylose by D. nepalensis in a batch stirred tank bioreactor. Maximum xylitol productivity (0.576 g L(-1) h(-1)) was obtained at pH 4.0, agitation 300 rpm and aeration 1.5 vvm by rotating simplex method. Individual optimum values of pH, agitation and aeration are 4...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330188/purification-and-characterization-of-a-surfactant-compatible-lipase-from-aspergillus-tamarii-jgif06-exhibiting-energy-efficient-removal-of-oil-stains-from-polycotton-fabric
#8
Arijit Das, Srividya Shivakumar, Sourav Bhattacharya, Sujina Shakya, S S Swathi
An extracellular lipase with 23,666.66 U/ml/min activity was produced by Aspergillus tamarii JGIF06 under submerged fermentation in mineral salt medium containing coconut oil (2.5 % v/v), tryptone (2 % w/v) and ammonium chloride (2 % w/v), with initial pH of 5 ± 0.2, incubated at 25 °C for 7 days on a rotary shaker at 120 rpm. A 7.9-fold increase in lipase-specific activity was recorded after purification by DEAE Sepharose ion exchange and Sephadex G200 column chromatography. The apparent molecular mass of this enzyme was revealed as 50 kDa by sodium dodecyl sulphate polyacrylamide gel electrophoresis...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330116/novel-pathway-of-cypermethrin-biodegradation-in-a-bacillus-sp-strain-sg2-isolated-from-cypermethrin-contaminated-agriculture-field
#9
Pankaj, Anita Sharma, Saurabh Gangola, Priyanka Khati, Govind Kumar, Anjana Srivastava
Pesticides belonging to pyrethroid group are widely used in agricultural fields to check pest infestation in different crops for enhanced food production. In spite of beneficial effects, non-judicious use of pesticides imposes harmful effect on human health as their residues reach different food materials and ground water via leaching, percolation and bioaccumulation. Looking into the potential of microbial degradation of toxic compounds under natural environment, a cypermethrin-degrading Bacillus sp. was isolated from pesticide-contaminated soil of a rice field of Distt...
June 2016: 3 Biotech
https://www.readbyqxmd.com/read/28323213/oral-delivery-of-bacillus-subtilis-spores-expressing-cysteine-protease-of-clonorchis-sinensis-to-grass-carp-ctenopharyngodon-idellus-induces-immune-responses-and-has-no-damage-on-liver-and-intestine-function
#10
Zeli Tang, Hengchang Sun, TingJin Chen, Zhipeng Lin, Hongye Jiang, Xinyi Zhou, Cunbin Shi, Houjun Pan, Ouqin Chang, Pengli Ren, Jinyun Yu, Xuerong Li, Jin Xu, Yan Huang, Xinbing Yu
Clonorchis sinensis (C. sinensis) is a fish-borne trematode. Human can be infected by ingestion of C. sinensis metacercariae parasitized in grass carp (Ctenopharyngodon idella). For induction of effective oral immune responses, spores of Bacillus subtilis (B. subtilis) WB600 were utilized as vehicle to delivery CsCP (cysteine protease of C. sinensis) cooperated with CotC (B.s-CotC-CP), one of coat proteins, to the gastrointestinal tract. After routine culture of 8-12 h in LB medium, B. subtilis containing CotC-CsCP was transferred into the sporulation culture medium...
March 18, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28316475/optimization-of-manufacturing-conditions-for-improving-storage-stability-of-coffee-supplemented-milk-beverage-using-response-surface-methodology
#11
Sung-Il Ahn, Jun-Hong Park, Jae-Hoon Kim, Duk-Geun Oh, Moojoong Kim, Donghwa Chung, Jin-Woo Jhoo, Gur-Yoo Kim
This study aimed at optimizing the manufacturing conditions of a milk beverage supplemented with coffee, and monitoring its physicochemical and sensory properties during storage. Raw milk, skim milk powder, coffee extract, and emulsifiers were used to manufacture the beverage. Two sucrose fatty acid esters, F110 and F160, were identified as suitable emulsifiers. The optimum conditions for the beverage manufacture, which can satisfy two conditions at the same time, determined by response surface methodology (RSM), were 5,000 rpm primary homogenization speed and 0...
2017: Korean Journal for Food Science of Animal Resources
https://www.readbyqxmd.com/read/28315056/degradation-of-n-alkanes-and-pahs-from-the-heavy-crude-oil-using-salt-tolerant-bacterial-consortia-and-analysis-of-their-catabolic-genes
#12
Ranjit Gurav, Honghong Lyu, Jianli Ma, Jingchun Tang, Qinglong Liu, Hairong Zhang
In the present study, salt-tolerant strains, Dietzia sp. HRJ2, Corynebacterium variabile HRJ4, Dietzia cinnamea HRJ5 and Bacillus tequilensis HRJ6 were isolated from the Dagang oil field, China. These strains degraded n-alkanes and polycyclic aromatic hydrocarbons (PAHs) aerobically from heavy crude oil (HCO) in an experiment at 37 °C and 140 rpm. The GC/MS investigation for degradation of different chain lengths of n-alkanes (C8-C40) by individual strains showed the highest degradation of C8-C19 (HRJ5), C20-C30 (HRJ4) and C31-C40 (HRJ5), respectively...
March 17, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28303046/antioxidant-activity-and-polyphenolic-compound-stability-of-lentil-orange-peel-powder-blend-in-an-extrusion-process
#13
Rahul P Rathod, Uday S Annapure
Lentil contains substantial amount of protein, carbohydrate, fibre and other nutrients and orange peels powder rich in carbohydrate and fiber content The present study was aimed to investigate the effects of extrusion processing parameter on the level of total phenolic content (TPC), total flavonoid content (TFC), total tannin content and antioxidant activity of lentil-orange peel powder blend, also to investigate the possibility of blend as a candidate for production of protein rich extruded product by using response surface methodology...
March 2017: Journal of Food Science and Technology
https://www.readbyqxmd.com/read/28297882/quantum-mechanical-model-for-the-anticarcinogenic-effect-of-extremely-low-frequency-electromagnetic-fields-on-early-chemical-hepatocarcinogenesis
#14
Juan José Godina-Nava, Gabino Torres-Vega, Germán Octavio López-Riquelme, Eduardo López-Sandoval, Arturo Rodolfo Samana, Fermín García Velasco, Claudia Hernández-Aguilar, Arturo Domínguez-Pacheco
Using the conventional Haberkorn approach, it is evaluated the recombination of the radical pair (RP) singlet spin state to study theoretically the cytoprotective effect of an extremely-low-frequency electromagnetic field (ELF-EMF) on early stages of hepatic cancer chemically induced in rats. The proposal is that ELF-EMF modulates the interconversion rate of singlet and triplet spin states of the RP populations modifying the products from the metabolization of carcinogens. Previously, we found that the daily treatment with ELF-EMF 120 Hz inhibited the number and area of preneoplastic lesions in chemical carcinogenesis...
February 2017: Physical Review. E
https://www.readbyqxmd.com/read/28291851/bone-healing-around-dental-implants-simplified-vs-conventional-drilling-protocols-at-speed-of-400-rpm
#15
Luiz Fernando Gil, Alvin Sarendranath, Rodrigo Neiva, Heloisa F Marão, Nick Tovar, Estevam A Bonfante, Malvin N Janal, Arthur Castellano, Paulo G Coelho
PURPOSE: This study evaluated whether simplified drilling protocols would provide comparable histologic and histomorphometric results to conventional drilling protocols at a low rotational speed. MATERIALS AND METHODS: A total of 48 alumina-blasted and acid-etched Ti-6Al-4V implants with two diameters (3.75 and 4.2 mm, n = 24 per group) were bilaterally placed in the tibiae of 12 dogs, under a low-speed protocol (400 rpm). Within the same diameter group, half of the implants were inserted after a simplified drilling procedure (pilot drill + final diameter drill), and the other half were placed using the conventional drilling procedure...
March 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/28278179/manufacture-of-low-benzo-a-pyrene-sesame-seed-sesamum-indicum-l-oil-using-a-self-designed-apparatus
#16
Ji Yoon Yi, Hui Ju Kim, Myong-Soo Chung
The aim of this study was to lower benzo(a)pyrene (BaP) contents in sesame seed oil (SSO) during manufacture by using a self-designed apparatus, to determine its optimal conditions, and to analyze antioxidants in SSO which might be related to BaP content reduction. Washing and spin-drying steps reduce exogenous BaP contamination, and the reduced moisture in seeds lowered BaP content in final SSO. A ventilation system in the roasting step inhibits BaP formation and reabsorption, followed by a controlled compression step...
2017: PloS One
https://www.readbyqxmd.com/read/28278101/biosorption-of-lead-using-bacillus-badius-ak-strain-isolated-from-compost-of-green-waste-water-hyacinth
#17
Isha Vishan, Senthilkumar Sivaprakasam, Ajay Kalamdhad
The bacterial strain Bacillus badius AK isolated from water hyacinth compost was investigated for biosorption characteristics in Pb(II) removal. Batch mode experiments depicted the optimum conditions for biosorption as pH at 4, the temperature of 30°C, 150 rpm of the rotational speed at biomass concentration of 20 mL with 1.7×10(16) CFU/mL value, at 100-150 mg/L concentration of Pb(II). The bacterial biomass was used in its native and non-pretreated state, unlike the dried, freeze-dried or chemically treated biomass...
February 22, 2017: Environmental Technology
https://www.readbyqxmd.com/read/28273809/proteome-analysis-of-human-follicular-thyroid-cancer-cells-exposed-to-the-random-positioning-machine
#18
Johann Bauer, Sascha Kopp, Elisabeth Maria Schlagberger, Jirka Grosse, Jayashree Sahana, Stefan Riwaldt, Markus Wehland, Ronald Luetzenberg, Manfred Infanger, Daniela Grimm
Several years ago, we detected the formation of multicellular spheroids in experiments with human thyroid cancer cells cultured on the Random Positioning Machine (RPM), a ground-based model to simulate microgravity by continuously changing the orientation of samples. Since then, we have studied cellular mechanisms triggering the cells to leave a monolayer and aggregate to spheroids. Our work focused on spheroid-related changes in gene expression patterns, in protein concentrations, and in factors secreted to the culture supernatant during the period when growth is altered...
March 3, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28273681/effect-of-two-polishing-systems-on-surface-roughness-topography-and-flexural-strength-of-a-monolithic-lithium-disilicate-ceramic
#19
Mahshid Mohammadibassir, Mohammad Bagher Rezvani, Hossein Golzari, Elham Moravej Salehi, Mohammad Amin Fahimi, Mohammad Javad Kharazi Fard
PURPOSE: To evaluate the effect of overglazing and two polishing procedures on flexural strength and quality and quantity of surface roughness of a monolithic lithium disilicate ceramic computer-aided design (CAD) after grinding. MATERIALS AND METHODS: This in vitro study was conducted on 52 partially crystalized bar-shaped specimens (16 × 4 × 1.6 mm) of monolithic lithium disilicate ceramic. The specimens were wet polished with 600-, 800-, and 1200-grit silicon carbide papers for 15 seconds using a grinding/polishing machine at a speed of 300 rpm...
March 8, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28272037/biosorption-of-pb-ii-by-bacillus-badius-ak-strain-originating-from-rotary-drum-compost-of-water-hyacinth
#20
Isha Vishan, Avishek Laha, Ajay Kalamdhad
The presence of heavy metals in the environment due to industrial activities is of serious concern because of their toxic behaviour towards humans and other forms of life. Biosorption of Pb(II) using dry bacterial biomass of Bacillus badius AK, previously isolated from water hyacinth compost, has been undertaken in batch system. The optimum conditions of biosorption were determined by investigating the initial pH, contact time, initial biomass dosage at constant temperature of 40 °C, initial metal concentration of 100 mg/L and rotational speed of 150 rpm...
March 2017: Water Science and Technology: a Journal of the International Association on Water Pollution Research
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