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https://www.readbyqxmd.com/read/28208093/oxidative-transformation-of-artificial-sweetener-acesulfame-by-permanganate-reaction-kinetics-transformation-products-and-pathways-and-ecotoxicity
#1
Kai Yin, Fei Li, Ying Wang, Qunying He, Yongxiu Deng, Shuo Chen, Chengbin Liu
Acesulfame has attracted much attention due to its wide application, environmental persistence and potential safety risk of transformation products (TPs). Little information is known on acesulfame transformation in the presence of oxidants/disinfectants. The acesulfame oxidation by permanganate (Mn(VII)) in water under environmentally relevant conditions was systematically evaluated. The pH of water showed negligible influence in acesulfame oxidation. Inorganic ligand (pyrophosphate) exhibited insignificant effect whereas organic ligands (oxalate, ethylene diamine tetraacetic acid, and humic acid) exerted obvious suppression on acesulfame oxidation...
February 9, 2017: Journal of Hazardous Materials
https://www.readbyqxmd.com/read/28193409/a-new-natural-source-for-obtainment-of-inulin-and-fructo-oligosaccharides-from-industrial-waste-of-stevia-rebaudiana-bertoni
#2
Sheila Mara Sanches Lopes, Gabriela Krausová, José Walter Pedroza Carneiro, José Eduardo Gonçalves, Regina Aparecida Correia Gonçalves, Arildo José Braz de Oliveira
Fructan-type inulin and fructo-oligosaccharides (FOS) are reserve polysaccharides that offer an interesting combination of nutritional and technological properties for food industry. Stevia rebaudiana is used commercially in the sweetener industry due to the high content of steviol glycosides in its leaves. With the proposal of using industrial waste, the objective of the present study was to isolate, characterize and evaluate the prebiotic activity of inulin and FOS from S. rebaudiana stems. The chemical characterization of the samples by GC-MS, NMR and off-line ESI-MS showed that it was possible to obtain inulin molecules from the S...
June 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28192727/ecotoxicological-assessments-show-sucralose-and-fluoxetine-affect-the-aquatic-plant-lemna-minor
#3
Cherisse Amy-Sagers, Keith Reinhardt, Danelle M Larson
Pharmaceuticals and personal care products (PPCP) are prevalent in aquatic systems, yet the fate and impacts on aquatic plants needs quantification for many compounds. We measured and detected sucralose (an artificial sweetener), fluoxetine (an antidepressant), and other PPCP in the Portneuf River in Idaho, USA, where Lemna minor (an aquatic plant in the environment and used in ecotoxicology studies) naturally occurs. Sucralose was hypothesized to negatively affect photosynthesis and growth of L. minor because sucralose is a chlorinated molecule that may be toxic or unusable for plant metabolism...
January 19, 2017: Aquatic Toxicology
https://www.readbyqxmd.com/read/28183287/price-elasticity-of-the-demand-for-soft-drinks-other-sugar-sweetened-beverages-and-energy-dense-food-in-chile
#4
Carlos M Guerrero-López, Mishel Unar-Munguía, M Arantxa Colchero
BACKGROUND: Chile is the second world's largest per capita consumer of caloric beverages. Caloric beverages are associated with overweight, obesity and other chronic diseases. The objective of this study is to estimate the price elasticity of demand for soft drinks, other sugar-sweetened beverages and high-energy dense foods in urban areas in Chile in order to evaluate the potential response of households' consumption to changes in prices. METHODS: We used microdata from the VII Family Budget Survey 2012-2013, which collects information on expenditures made by Chilean urban households on items such as beverages and foods...
February 10, 2017: BMC Public Health
https://www.readbyqxmd.com/read/28146121/a-novel-diterpene-glycoside-with-nine-glucose-units-from-stevia-rebaudiana-bertoni
#5
Indra Prakash, Gil Ma, Cynthia Bunders, Romila D Charan, Catherine Ramirez, Krishna P Devkota, Tara M Snyder
Following our interest in new diterpene glycosides with better taste profiles than that of Rebaudioside M, we have recently isolated and characterized Rebaudioside IX-a novel steviol glycoside-from a commercially-supplied extract of Stevia rebaudiana Bertoni. This molecule contains a hexasaccharide group attached at C-13 of the central diterpene core, and contains three additional glucose units when compared with Rebaudioside M. Here we report the complete structure elucidation-based on extensive Nuclear Magnetic Resonance (NMR) analysis (1H, 13C, Correlation Spectroscopy (COSY), Heteronuclear Single Quantum Coherence-Distortionless Enhancement Polarization Transfer (HSQC-DEPT), Heteronuclear Multiple Bond Correlation (HMBC), 1D Total Correlation Spectroscopy (TOCSY), Nuclear Overhauser Effect Spectroscopy (NOESY)) and mass spectral data-of this novel diterpene glycoside with nine sugar moieties and containing a relatively rare 16 α-linked glycoside...
January 31, 2017: Biomolecules
https://www.readbyqxmd.com/read/28106207/natural-sweetener-agave-inhibits-gastric-emptying-in-rats-by-a-cholecystokinin-2-and-glucagon-like-peptide-1-receptor-dependent-mechanism
#6
E Bihter Gürler, Dilek Özbeyli, Hülya Buzcu, Sezin Bayraktar, İrem Carus, Beyza Dağ, Yasemin Geriş, Seda Jeral, Berrak Ç Yeğen
Low-calorie sweeteners are considered to be beneficial in calorie control, but the impact of these sweeteners on gastric emptying is not well described. The purpose of this study was to compare the gastric emptying rate of agave nectar with those of glucose and fructose, and to evaluate the interaction of cholecystokinin (CCK)-1, CCK-2 and glucagon-like peptide-1 (GLP-1) receptors in agave-induced alterations in gastric emptying. Female Sprague-Dawley rats were fitted with gastric cannulas. Following the recovery, the gastric emptying rates of glucose, fructose and agave at 12...
January 20, 2017: Food & Function
https://www.readbyqxmd.com/read/28092151/issues-in-nutrition-carbohydrates
#7
Margaret E Thompson, Mary Barth Noel
Carbohydrates include sugars, starches, and dietary fibers. Resistant starches resemble fiber in their behavior in the intestinal tract, and may have positive effects on blood glucose levels and the gut microbiome. Fibers are classified as soluble and insoluble, but most fiber-containing foods contain a mixture of soluble and insoluble fiber. Soluble fiber has been shown to lower low-density lipoprotein cholesterol levels. Many artificial sweeteners and other sugar substitutes are available. Most natural sources of sweeteners also are energy sources...
January 2017: FP Essentials
https://www.readbyqxmd.com/read/28051308/analytical-methods-used-in-the-quality-control-of-honey
#8
Consuelo Pita-Calvo, María Esther Guerra-Rodríguez, Manuel Vázquez
Honey is a natural sweet substance produced by bees (Apis mellifera). In this work, the main parameters used in routine quality control of honey and the most commonly used analytical methods for their determination are reviewed. Honey can be adulterated with cheaper sweeteners or, indirectly, by feeding the bees with sugars. Therefore, methods for detecting and quantifying adulteration are necessary. Chromatographic techniques are widely used in honey analysis. More recently, techniques such as Raman, near-infrared, mid-infrared, and nuclear magnetic resonance spectroscopy in combination with chemometric data processing have been proposed...
February 1, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28034739/behavioral-evidence-that-select-carbohydrate-stimuli-activate-t1r-independent-receptor-mechanisms
#9
Alan C Spector, Lindsey A Schier
Three decades ago Tony Sclafani proposed the existence of a polysaccharide taste quality that was distinguishable from the taste generated by common sweeteners and that it was mediated by a separate receptor mechanism. Since that time, evidence has accumulated, including psychophysical studies conducted in our laboratory, buttressing this hypothesis. The use of knockout (KO) mice that lack functional T1R2 + T1R3 heterodimers, the principal taste receptor for sugars and other sweeteners, have been especially informative in this regard...
December 26, 2016: Appetite
https://www.readbyqxmd.com/read/28027980/assessment-of-the-carcinogenic-potential-of-high-intense-sweeteners-through-the-test-for-detection-of-epithelial-tumor-clones-warts-in-drosophila-melanogaster
#10
Mirley Alves Vasconcelos, Priscila Capelari Orsolin, Rosiane Gomes Silva-Oliveira, Júlio César Nepomuceno, Mário Antônio Spanó
High intensity-sweeteners (HIS) are natural or synthetic substances, sweeter than sugar, providing sweetness without calories. Sweeteners are mainly used as an aid in losing weight, preventing obesity and controlling blood sugar levels for diabetics. The objective of this study was to evaluate the carcinogenic potential of the sweeteners aspartame, sucralose, sodium saccharin and steviol glycoside, using the test for detection of epithelial tumor clones in Drosophila melanogaster. Larvae of 72 ± 4h, obtained from wts/TM3 female mated with mwh/mwh males, were treated for approximately 48h with different concentrations of aspartame (0...
December 24, 2016: Food and Chemical Toxicology
https://www.readbyqxmd.com/read/28019698/novel-product-specificity-toward-erlose-and-panose-exhibited-by-multi-site-engineered-mutants-of-amylosucrase
#11
Alizée Vergès, Emmanuelle Cambon, Sophie Barbe, Claire Moulis, Magali Remaud-Siméon, Isabelle André
A computer-aided engineering approach recently enabled to deeply reshape the active site of N. polysaccharea amylosucrase for recognition of non-natural acceptor substrates. Libraries of variants were constructed and screened on sucrose allowing the identification of 17 mutants able to synthesize molecules from sole sucrose, which are not synthesized by the parental wild-type enzyme. Three of the isolated mutants as well as the new products synthesized were characterized in details. Mutants contain between 7 and 11 mutations in the active site and the new molecules were identified as being a sucrose derivative, named erlose (α-D-glucopyranosyl-(1→4)-α-D-glucopyranosyl-(1→2)-β-D-Fructose), and a new malto-oligosaccharide named panose (α-D-glucopyranosyl-(1→6)-α-D-glucopyranosyl-(1→4)-α-D-Glucose)...
December 26, 2016: Protein Science: a Publication of the Protein Society
https://www.readbyqxmd.com/read/27979110/sweetness-prediction-of-natural-compounds
#12
Jean-Baptiste Chéron, Iuri Casciuc, Jérôme Golebiowski, Serge Antonczak, Sébastien Fiorucci
Based on the most exhaustive database of sweeteners with known sweetness values, a new quantitative structure-activity relationship model for sweetness prediction has been set up. Analysis of the physico-chemical properties of sweeteners in the database indicates that the structure of most potent sweeteners combines a hydrophobic scaffold functionalized by a limited number of hydrogen bond sites (less than 4 hydrogen bond donors and 10 acceptors), with a moderate molecular weight ranging from 350 to 450g·mol(-1)...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27976186/liquorice-as-a-feed-additive-a-health-promoting-natural-sweetener
#13
T Kaschubek, E Mayer, G Schatzmayr, K Teichmann
No abstract text is available yet for this article.
December 2016: Planta Medica
https://www.readbyqxmd.com/read/27956737/effects-of-aspartame-monk-fruit-stevia-and-sucrose-sweetened-beverages-on-postprandial-glucose-insulin-and-energy-intake
#14
S L Tey, N B Salleh, J Henry, C G Forde
BackgroundSubstituting sweeteners with non-nutritive sweeteners (NNS) may aid in glycaemic control and body weight management. Limited studies have investigated energy compensation, glycaemic and insulinaemic responses to artificial and natural NNS.ObjectivesThis study compared the effects of consuming NNS (artificial vs. natural) and sucrose (65 g) on energy intake, blood glucose and insulin responses.MethodsThirty healthy males took part in this randomised, crossover study with four treatments: aspartame-, monk fruit-, Stevia-, and sucrose-sweetened beverages...
December 13, 2016: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/27925212/sucrose-replacement-in-high-ratio-white-layer-cakes
#15
Rebecca A Miller, Orelia E Dann, Amanda R Oakley, Megan E Angermayer, Katherine H Brackebusch
BACKGROUND: Several commercially available alternative sweeteners have potential in reducing the caloric content of baked products. Sugar alcohols and natural sweeteners have similar bulk as sucrose and can replace sucrose directly. High intensity sweeteners have high potency but light weight so bulking agents are often added. This study determined alternative sweeteners and combinations of alternative sweetener and a bulking agent that produced good quality white layer cakes. RESULTS: Cakes made with maltitol were acceptable but erythritol and fructose produced undesirable cakes...
December 7, 2016: Journal of the Science of Food and Agriculture
https://www.readbyqxmd.com/read/27916004/sugars-and-health-a-review-of-current-evidence-and-future-policy
#16
Charlotte Elizabeth Louise Evans
The automation of the process of extracting sugars in the 1900s reduced cost and increased availability of sugars leading to a dramatic rise in consumption, which reached a peak in the 1970s. There are different definitions for sugars not naturally available in foods, and free sugars is the term used by WHO. The epidemiological evidence of the associations between sugars and obesity and type 2 diabetes mellitus is fairly strong and consistent, particularly for sugar sweetened drinks in adults. The Department of Health in the UK and many other countries have recently updated their recommendations for free sugars as a result of this scientific evidence...
December 5, 2016: Proceedings of the Nutrition Society
https://www.readbyqxmd.com/read/27862504/assignment-of-sugar-arrangement-in-branched-steviol-glycosides-using-electrospray-ionization-quadrupole-time-of-flight-tandem-mass-spectrometry
#17
Wilmer H Perera, Bharathi Avula, Ikhlas A Khan, James D McChesney
RATIONALE: Steviol glycosides with an ent-kaurene core are being used in the Food Industry as non-caloric sweeteners. These compounds are chemically similar in terms of sugar types and sugar arrangements. In order to assign sugar positions, we describe herein the dissociation pattern for steviol glycosides under varying collision energies. METHODS: Steviol glycosides (1 mg/mL, 2 μL) were automatically injected into the mass spectrometer by direct infusion using a 100-well tray autosampler...
February 15, 2017: Rapid Communications in Mass Spectrometry: RCM
https://www.readbyqxmd.com/read/27848976/tea-induced-calmness-sugar-sweetened-tea-calms-consumers-exposed-to-acute-stressor
#18
Shilpa S Samant, Katherine Wilkes, Zephania Odek, Han-Seok Seo
The food and beverage industry has been increasingly replacing sugar with non-nutritive sweeteners in their sweetened products to control or reduce total calories. Research comparing the effect of nutritive and non-nutritive sweeteners on emotional state of participants exposed to acute stressors is still limited. This study aimed to determine the effect of drinking tea sweetened with either a nutritive sweetener (sugar) or a non-nutritive sweetener (sucralose or stevia) on emotional state, in terms of calmness and pleasantness, of participants exposed to an acute stressor...
November 16, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27821754/the-biosynthetic-pathway-of-the-nonsugar-high-intensity-sweetener-mogroside-v-from-siraitia-grosvenorii
#19
Maxim Itkin, Rachel Davidovich-Rikanati, Shahar Cohen, Vitaly Portnoy, Adi Doron-Faigenboim, Elad Oren, Shiri Freilich, Galil Tzuri, Nadine Baranes, Shmuel Shen, Marina Petreikov, Rotem Sertchook, Shifra Ben-Dor, Hugo Gottlieb, Alvaro Hernandez, David R Nelson, Harry S Paris, Yaakov Tadmor, Yosef Burger, Efraim Lewinsohn, Nurit Katzir, Arthur Schaffer
The consumption of sweeteners, natural as well as synthetic sugars, is implicated in an array of modern-day health problems. Therefore, natural nonsugar sweeteners are of increasing interest. We identify here the biosynthetic pathway of the sweet triterpenoid glycoside mogroside V, which has a sweetening strength of 250 times that of sucrose and is derived from mature fruit of luo-han-guo (Siraitia grosvenorii, monk fruit). A whole-genome sequencing of Siraitia, leading to a preliminary draft of the genome, was combined with an extensive transcriptomic analysis of developing fruit...
November 22, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27797642/sweetened-soft-drinks-consumption-is-associated-with-metabolic-syndrome-cross-sectional-analysis-from-the-brazilian-longitudinal-study-of-adult-health-elsa-brasil
#20
Gustavo Velasquez-Melendez, Maria Del Carmen B Molina, Isabela M Benseñor, Leticia O Cardoso, Maria de Jesus M Fonseca, Alexandra D Moreira, Taísa Sabrina S Pereira, Sandhi M Barreto
OBJECTIVE: To estimate the association between regular consumption of sweetened soft drinks, natural fruit juice, and coconut water with metabolic syndrome (MetS). METHODS: This was a cross-sectional study including men and women aged 35-74 years from the Brazilian Longitudinal Study of Adult Health (ELSA-Brasil) Study, excluding patients with type 2 diabetes. The main explanatory variables were beverage consumption and the outcome variable was metabolic syndrome (Adult Treatment Panel III)...
February 2017: Journal of the American College of Nutrition
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