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https://www.readbyqxmd.com/read/28335441/dietary-intake-of-individual-free-and-intrinsic-sugars-and-food-sources-in-the-spanish-population-findings-from-the-anibes-study
#1
Emma Ruiz, Paula Rodriguez, Teresa Valero, José M Ávila, Javier Aranceta-Bartrina, Ángel Gil, Marcela González-Gross, Rosa M Ortega, Lluis Serra-Majem, Gregorio Varela-Moreiras
The consumption of total and individual sugars is controversial and little is known about consumption and dietary sources in Spain. The purpose was to examine free and intrinsic sugar intake and food and beverage sources. The ANIBES Study (Anthropometry, Intake and Energy Balance in Spain), a cross-sectional study of a representative sample of the Spanish population (9-75 years old; n = 2009) carried out in 2013, was used. Food and beverage records were obtained by a three-day dietary record by using a tablet device...
March 14, 2017: Nutrients
https://www.readbyqxmd.com/read/28333308/fluconazole-treatment-enhances-extracellular-release-of-red-pigments-in-the-fungus-monascus-purpureus
#2
Sunil H Koli, Rahul K Suryawanshi, Chandrashekar D Patil, Satish V Patil
Traditional methods for the production of food grade pigments from fungus Monascus spp. are mostly relying on submerged fermentation. However, cell bound nature and intracellular accumulation of pigments in Monascus spp is the major hurdle in pigment production by submerged fermentation. The present study focused on the investigation of the effect of the antifungal agent, fluconazole on red pigment production from Monascus purpureus (NMCC-PF01). At the optimized concentration of fluconazole (30 μg/ml), pigment production was found to be enhanced by 88% after 96 h and it remained constant even after further incubation up to 168 h...
March 15, 2017: FEMS Microbiology Letters
https://www.readbyqxmd.com/read/28333109/angiotensin-i-converting-enzyme-ace-inhibitory-peptides-from-plants
#3
REVIEW
Ceren Daskaya-Dikmen, Aysun Yucetepe, Funda Karbancioglu-Guler, Hayrettin Daskaya, Beraat Ozcelik
Hypertension is an important factor in cardiovascular diseases. Angiotensin-I-converting enzyme (ACE) inhibitors like synthetic drugs are widely used to control hypertension. ACE-inhibitory peptides from food origins could be a good alternative to synthetic drugs. A number of plant-based peptides have been investigated for their potential ACE inhibitor activities by using in vitro and in vivo assays. These plant-based peptides can be obtained by solvent extraction, enzymatic hydrolysis with or without novel food processing methods, and fermentation...
March 23, 2017: Nutrients
https://www.readbyqxmd.com/read/28333108/the-biology-of-pichia-membranifaciens-killer-toxins
#4
REVIEW
Ignacio Belda, Javier Ruiz, Alejandro Alonso, Domingo Marquina, Antonio Santos
The killer phenomenon is defined as the ability of some yeast to secrete toxins that are lethal to other sensitive yeasts and filamentous fungi. Since the discovery of strains of Saccharomyces cerevisiae capable of secreting killer toxins, much information has been gained regarding killer toxins and this fact has substantially contributed knowledge on fundamental aspects of cell biology and yeast genetics. The killer phenomenon has been studied in Pichia membranifaciens for several years, during which two toxins have been described...
March 23, 2017: Toxins
https://www.readbyqxmd.com/read/28333084/establishing-the-secondary-metabolite-profile-of-the-marine-fungus-tolypocladium-geodes-sp-mf458-and-subsequent-optimisation-of-bioactive-secondary-metabolite-production
#5
Bethlehem Kebede, Stephen K Wrigley, Anjali Prashar, Janina Rahlff, Markus Wolf, Jeanette Reinshagen, Philip Gribbon, Johannes F Imhoff, Johanna Silber, Antje Labes, Bernhard Ellinger
As part of an international research project, the marine fungal strain collection of the Helmholtz Centre for Ocean Research (GEOMAR) research centre was analysed for secondary metabolite profiles associated with anticancer activity. Strain MF458 was identified as Tolypocladium geodes, by internal transcribed spacer region (ITS) sequence similarity and its natural product production profile. By using five different media in two conditions and two time points, we were able to identify eight natural products produced by MF458...
March 23, 2017: Marine Drugs
https://www.readbyqxmd.com/read/28332326/fermentation-of-glycerol-by-a-newly-discovered-anaerobic-bacterium-adding-value-to-biodiesel-production
#6
María Hidalgo, Elena Puerta-Fernández
No abstract text is available yet for this article.
March 23, 2017: Microbial Biotechnology
https://www.readbyqxmd.com/read/28332163/fermentation-of-dietetic-fiber-from-green-bean-and-prickly-pear-shell-by-pure-and-mixture-culture-of-lactobacillus-acidophilus-la-5-and-bifidobacterium-bifidum-450b
#7
Y N Mora-Cura, N P Meléndez-Rentería, M Delgado-García, J C Contreras-Esquivel, J A Morlett-Chávez, C N Aguilar, R Rodríguez-Herrera
The aim of this study was to evaluate the fermentation of dietary fiber from green bean (Phaseolus vulgaris) and prickly pear shell (Opuntia ficus-indica) by Lactobacillus acidophilus LA-5 and Bifidobacterium bifidum 450B growing as mono-culture and co-culture, the fermentation products, and proteins expressed during this process. The analysis of the fermentation profile showed a major growth of bacteria in the culture media of each dietary fiber supplemented with glucose, and particularly B. bifidum 450B at 48 h showed the highest growth...
March 23, 2017: Current Microbiology
https://www.readbyqxmd.com/read/28332050/rapidly-directional-biotransformation-of-tauroursodeoxycholic-acid-through-engineered-escherichia-coli
#8
Jie Shi, Jie Wang, Lu Yu, Li Yang, Shujuan Zhao, Zhengtao Wang
Bear bile powder is a precious medicinal material. It is characterized by high content of tauroursodeoxycholic acid (TUDCA) at a ratio of 1.0-1.5 to taurochenodeoxycholic acid (TCDCA). Here, we reported the biotransformation of tauroursodeoxycholic acid (TUDCA) through Escherichia coli engineered with a two-step mimic biosynthetic pathway of TUDCA from taurochenodeoxycholic acid (TCDCA). Two 7α-hydroxysteroid dehydrogenase (7α-HSDH) and two 7β-hydroxysteroid dehydrogenase (7β-HSDH) genes (named as α1, α2, β1, and β2) were selected and synthesized to create four pathway variants using ePathBrick...
March 22, 2017: Journal of Industrial Microbiology & Biotechnology
https://www.readbyqxmd.com/read/28331544/vapor-fed-bio-hybrid-fuel-cell
#9
Marcus S Benyamin, Justin P Jahnke, David M Mackie
BACKGROUND: Concentration and purification of ethanol and other biofuels from fermentations are energy-intensive processes, with amplified costs at smaller scales. To circumvent the need for these processes, and to potentially reduce transportation costs as well, we have previously investigated bio-hybrid fuel cells (FCs), in which a fermentation and FC are closely coupled. However, long-term operation requires strictly preventing the fermentation and FC from harming each other. We introduce here the concept of the vapor-fed bio-hybrid FC as a means of continuously extracting power from ongoing fermentations at ambient conditions...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28331542/expression-of-a-heat-stable-nadph-dependent-alcohol-dehydrogenase-from-thermoanaerobacter-pseudethanolicus-39e-in-clostridium-thermocellum-1313-results-in-increased-hydroxymethylfurfural-resistance
#10
Sun-Ki Kim, Joseph Groom, Daehwan Chung, James Elkins, Janet Westpheling
BACKGROUND: Resistance to deconstruction is a major limitation to the use of lignocellulosic biomass as a substrate for the production of fuels and chemicals. Consolidated bioprocessing (CBP), the use of microbes for the simultaneous hydrolysis of lignocellulose into soluble sugars and fermentation of the resulting sugars to products of interest, is a potential solution to this obstacle. The pretreatment of plant biomass, however, releases compounds that are inhibitory to the growth of microbes used for CBP...
2017: Biotechnology for Biofuels
https://www.readbyqxmd.com/read/28330531/determination-of-ethanol-in-kombucha-products-single-laboratory-validation
#11
Blake Ebersole, Ying Liu, Rich Schmidt, Matt Eckert, Paula Brown
Kombucha is a fermented non-alcoholic beveragethat has drawn government attention due to thepossible presence of excess ethanol (>0.5%alcohol by volume; ABV). A validated methodthat provides better precision and accuracy formeasuring ethanol levels in kombucha is urgentlyneeded by the kombucha industry. The currentstudy validated a method for determining ethanolcontent in commercial kombucha products. Theethanol content in kombucha was measuredusing headspace gas chromatography with flameionization detection (GC-FID)...
February 21, 2017: Journal of AOAC International
https://www.readbyqxmd.com/read/28330332/response-surface-methodology-based-optimization-of-production-media-and-purification-of-%C3%AE-galactosidase-in-solid-state-fermentation-by-fusarium-moniliforme-ncim-1099
#12
Sanjivani B Gajdhane, Prashant K Bhagwat, Padma B Dandge
Response surface methodology was used to enhance the production of α-galactosidase from Fusarium moniliforme NCIM 1099 in solid-state fermentation. Plackett-Burman design was employed for selection of critical media constituents which were optimized by central composite rotatable design. Wheat bran, peptone and FeSO4·7H2O were identified as significant medium components using PB design. Further CCRD optimized medium components as wheat bran; 4.62 μg, peptone; 315.42 μg, FeSO4·7H2O; 9.04 μg. RSM methodological optimization increased the enzyme production from 13...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330328/optimization-of-phytase-production-from-potato-waste-using-aspergillus-ficuum
#13
Mengmeng Tian, Qiuyan Yuan
Solid-state fermentation (SSF) can divert food waste from landfills and produce high-value products. This study was aimed to investigate the feasibility of using SSF and optimize the conditions of production of phytase by Aspergillus ficuum from potato waste. Different parameters including pH of the potato waste, inoculum level, moisture content, incubation period, temperature, and supplementary nitrogen and carbon sources were evaluated. The results indicated that pH, inoculum level, and moisture content did not significantly vary phytase production...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330311/scaling-up-a-virginiamycin-production-by-a-high-yield-streptomyces-virginiae-vkm-ac-2738d-strain-using-adsorbing-resin-addition-and-fed-batch-fermentation-under-controlled-conditions
#14
Vakhtang Dzhavakhiya, Vyacheslav Savushkin, Alexander Ovchinnikov, Vladislav Glagolev, Veronika Savelyeva, Evgeniya Popova, Nikita Novak, Elena Glagoleva
Virginiamycin produced by Streptomyces virginiae as a natural mix of macrocyclic peptidolactones M and S is widely used in the industrial production of ethanol fuel and as an antibiotic feed additive for cattle and poultry. Its main antimicrobial components, M1 and S1 factors, act synergistically if the M1:S1 ratio in the final product is 70-75:25-30. This fact significantly complicates the development of stable high-yield strains suitable for industrial application. In the previous work, authors obtained a mutant S...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330308/construction-of-aspergillus-niger-integrated-with-cellulase-gene-from-ampullaria-gigas-spix-for-improved-enzyme-production-and-saccharification-of-alkaline-pretreated-rice-straw
#15
Peizhou Yang, Haifeng Zhang, Lili Cao, Zhi Zheng, Shaotong Jiang
Aspergillus niger is an important microorganism that has been used for decades to produce extracellular enzymes. In this study, a novel Aspergillus niger strain integrated with a eukaryotic expression vector harboring the gpd-Shi promoter of shiitake mushrooms and cellulase gene of Ampullaria gigas Spix was engineered to improve cellulase production for the achievement of highly efficient saccharification of agricultural residues. In one strain, designated ACShi27, which exhibited the highest total cellulase expression, total cellulase, endoglucanase, exoglucanase, and xylanase expression levels were 1...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330307/effect-of-particle-size-moisture-content-and-supplements-on-selective-pretreatment-of-cotton-stalks-by-daedalea-flavida-and-enzymatic-saccharification
#16
Harmanpreet Meehnian, Asim K Jana, Mithu Maiti Jana
A large amount of cotton stalk waste biomass with high cellulose content are incinerated by the farmers causing air pollution. The high cellulose content of cotton stalks can be converted to fermentable sugars by fungal delignification pretreatment of lignocellulosic biomass and enzymatic saccharification. The effect of particle size, moisture content, and media supplements was studied for delignification of cotton stalks by Daedalea flavida MTCC 145 (DF-2) in solid-state fermentation. The highest lignolytic enzyme activities, optimal lignin degradation 29...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330303/bio-prospecting-of-cuttle-fish-waste-and-cow-dung-for-the-production-of-fibrinolytic-enzyme-from-bacillus-cereus-ind5-in-solid-state-fermentation
#17
Gurupatham Devadhasan Biji, Arumugaperumal Arun, Eswaran Muthulakshmi, Ponnuswamy Vijayaraghavan, Mariadhas Valan Arasu, Naif Abdullah Al-Dhabi
The process parameters governing the production of fibrinolytic enzyme in solid state fermentation employing Bacillus cereus IND5 and using cuttle fish waste and cow dung substrate were optimized. The pH value of the medium, moisture content, sucrose, casein and magnesium sulfate were considered for two-level full factorial design and pH, casein and magnesium sulfate were identified as the important factors for fibrinolytic enzyme production. Central composite design was applied to investigate the interactive effect among variables (pH, casein and magnesium sulfate) and response surface plots were created to find the pinnacle of process response...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330302/production-of-bioherbicide-by-phoma-sp-in-a-stirred-tank-bioreactor
#18
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/28330295/biomass-derived-molecules-modulate-the-behavior-of-streptomyces-coelicolor-for-antibiotic-production
#19
Shashi Kant Bhatia, Bo-Rahm Lee, Ganesan Sathiyanarayanan, Hun Seok Song, Junyoung Kim, Jong-Min Jeon, Jeong-Jun Yoon, Jungoh Ahn, Kyungmoon Park, Yung-Hun Yang
Various chemicals, i.e., furfural, vanillin, 4-hydroxybenzaldehyde and acetate produced during the pretreatment of biomass affect microbial fermentation. In this study, effect of vanillin, 4-hydroxybenzaldehyde and acetate on antibiotic production in Streptomyces coelicolor is investigated. IC 50 value of vanillin, 4-hydroxybenzaldehyde and acetate was recorded as 5, 11.3 and 115 mM, respectively. Vanillin was found as a very effective molecule, and it completely abolished antibiotic (undecylprodigiosin and actinorhodin) production at 1 mM concentration, while 4-hydroxybenzaldehyde and acetate have little effect...
December 2016: 3 Biotech
https://www.readbyqxmd.com/read/28330286/effect-of-highly-branched-hyphal-morphology-on-the-enhanced-production-of-cellulase-in-trichoderma-reesei-des-15
#20
Ronglin He, Chen Li, Lijuan Ma, Dongyuan Zhang, Shulin Chen
The morphology of Trichoderma reesei is a vitally important factor for cellulase productivity. This study investigated the effect of hyphal morphology on cellulase production in the hyper-cellulolytic mutant, T. reesei DES-15. With a distinct morphology, T. reesei DES-15 was obtained through Diethyl sulfite (DES) mutagenesis. The hyphal morphology of DES-15 batch-cultured in a 5-L fermentor was significantly shorter and more branched than the parental strain RUT C30. The cellulase production of DES-15 during batch fermentation was 66 % greater than that of RUT C30 when cultured the same conditions...
December 2016: 3 Biotech
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