PNA to Present 4 Topics at the 2015 ACS North East Regional Meeting

John Edwards of Process NMR Associates will be presenting 4 papers at the 2015 ACS Northeast Regional Meeting that will be held in Ithaca, NY, June 10-13, 2015. ABSTRACT ID: 2283171 ABSTRACT TITLE: 1H qNMR of Alcoholic Cider - Analysis of Small Molecule and Residual Sugar Chemistry (final paper number: 43) SESSION: Food Chemistry SESSION TIME: 5:00 PM - 9:00 PM PRESENTATION FORMAT: Poster DAY & TIME OF PRESENTATION: Wednesday, June, 10, 2015, 5:00 PM - 9:00 PM ROOM & LOCATION: Emerson Suites - Campus Center ABSTRACT ID: 2283063 ABSTRACT TITLE: Nutritional Supplement and Diesel Fuel Application Development for Benchtop NMR Systems Operating at 42, 60, and 80 MHz – Equivalency with Supercon NMR (final paper number: 336) SESSION: Analytical Chemistry SESSION TIME: 9:00 AM - 11:30 AM PRESENTATION FORMAT: Oral DAY & TIME OF PRESENTATION: Friday, June, 12, 2015 from 9:45 AM - 10:05 AM ROOM & LOCATION: 222 - Williams Hall ABSTRACT ID: 2283105 ABSTRACT TITLE: Survey of Low Field NMR Spectrometer Platforms for Successful Screening of Sexual Enhancement and Weight Loss Supplements for Adulteration with Drugs and Drug Analogs (final paper number: 386) SESSION: Medicinal Chemistry SESSION TIME: 1:00 PM - 3:20 PM PRESENTATION FORMAT: Oral DAY…

Read More

Benchtop NMR – Screening Tool for Adulterated Herbal Supplements

Survey of Low Field NMR Spectrometer Platforms for Successful Screening of Sexual Enhancement and Weight Loss Supplements for Adulteration with Drugs and Drug Analogs John C Edwards1, Kristie M Adams2, and Anton Bzhelyansky2 1Process NMR Associates, Danbury, CT 2United States Pharmacopeial Convention, Rockville, MD The adulteration of dietary supplements (or natural health products) with synthetic pharmaceuticals is an area of increasing concern, which presents substantial risk to public health. Widely available in retail and via the Internet, these products are often marketed as sexual enhancement, weight loss and/or bodybuilding supplements. Unlike prescription drugs, supplements do not require premarket approval by FDA before they are made available for public consumption. In fact, the agency can only take investigational action after the adulterated product has caused harm and the adverse event has been reported via MedWatch (FDA’s online portal for voluntary reporting of adverse events associated with drugs, medical devices and dietary supplements). Development of analytical tools for screening and identification of adulterated products in the marketplace represents a significant step forward in the fight against adulterated dietary supplements. Several organizations, including AOAC and USP, have undertaken initiatives to evaluate and recommend analytical methodologies for screening supplements for adulteration. HPLC and mass…

Read More

Nutritional Supplement and Diesel Fuel Application Development for Benchtop NMR Systems Operating at 42, 60, and 80 MHz – Equivalency with Supercon NMR

Benchtop high-resolution NMR systems are available at a number of field strengths and probe configurations. However beyond the obvious academic instruction market for these instruments very few applications have been demonstrated across all available platforms and thus proving the general applicability of benchtop NMR technology to industrial quality control. We will present two chemometric-based applications that have been developed at 4 different field strengths utilizing Varian Mercury 300 MHz, Magritek Spinsolve 42 MHz, Aspect AI 60 MHz, and Thermo Picospin 80 MHz NMR systems. Partial-least-squares (PLS) regression correlations were obtained on all 4 platforms relating to: 1) Omega-3 fatty acid composition of samples taken from various points in a nutritional supplement manufacturing process. Excellent correlations were obtained on all 4 NMR instruments proving that NMR technology is applicable to in-lab, at-line. or on-line analysis of fish oil derived omega-3 fatty acid supplements. The 40 second NMR analysis effectively replaces a 60+ minute GC analysis. 2) Physical and chemical property determination of diesel fuels where excellent correlations were obtained between 1H NMR variability and parameters such as density, aromatic content by GC, hydrogen content by 1H TD-NMR (ASTM D7171 method), and sulfur content. Many more physical and chemical properties can be…

Read More

Presentations at SMASH 2014

"Beer Manufacturing and Analysis by NMR", John C. Edwards and Adam Dicaprio, Presented at the Mestrelab MNova Users, Meeting - SMASH, Atlanta, GA, September 7, 2014 Get PDF Here “Survey of Low Field NMR Spectrometer Platforms for Successful Screening of Sexual Enhancement and Weight Loss Supplements for Adulteration with Drugs and Drug Analogs", John C. Edwards, Kristie Adams, Anton Bzhelyansky , Presented at SMASH Conference, Atlanta, GA, September 7-10, 2014. Get PDF Here

Read More

Presentation and Posters – Magnetic Resonance in Food Conference 2014 – Cesena Italy

“Liquid and Solid-State 27Al qNMR of an Elemin Senonian Trace Minerals Supplement for Identification, Chemical Structure, Quantitation of Active Ingredient in the Product, and Product Stability”, Boris Nemzer, John C. Edwards, presented at XII International Conference on the Applications of Magnetic Resonance in Food Science: Defining Food by Magnetic Resonance, Cesena, Italy, May 20-23, 2014. Get PDF Here “Liquid and Solid-State Multinuclear 13C and 11B qNMR FruitexB Fructoborate Complex Nutritional Supplement. Identification, Chemical Structure, Quantitation of Active Ingredient in Product, and Product Stability”, Boris Nemzer, John C. Edwards, presented at XII International Conference on the Applications of Magnetic Resonance in Food Science: Defining Food by Magnetic Resonance, Cesena, Italy, May 20-23, 2014. Get PDF Here “1H qNMR of EPA and DHA Omega-3 Fatty Acid Esters - PLS Regression Models Obtained by 60 and 300 MHz NMR - At-Line and On-Line Monitoring of a Fish Oil Nutritional Supplement Manufacturing Process”, John C. Edwards, Paul J. Giammatteo, invited oral presentation at XII International Conference on the Applications of Magnetic Resonance in Food Science: Defining Food by Magnetic Resonance, Cesena, Italy, May 20-23, 2014. “Application of High Field and Cryogen-Free Bench-Top NMR Platforms to the Monitoring and Quantitation of PDE5 Inhibitor Adulteration of…

Read More

Presentation and Posters at PANIC 2014

“NMR Based Authentication of Nutraceuticals, Herbal Supplements, and Food Additives: Economic- and Efficacy-Driven Adulteration of Aloe Vera, Herbal Erectile Dysfunction Supplements, and Acacia Gum”, John C. Edwards, invited presentation at the 2nd PANIC, Charlotte, NC, February 3-5, 2014. Get PDF Here “Development of an Automated Complex Mixture Analysis qNMR Method within Mestrelab MNova - Application to Aloe Vera and the Beer Brewing Process", John C. Edwards, Adam J. Dicaprio, Michael A. Bernstein, presented at the 2nd PANIC, Charlotte, NC, February 3-5, 2014. Get PDF Here “Small Molecule Chemistry of Spontaneously Fermented Coolship Ales”, Adam J. Dicaprio, John C. Edwards, presented at the 2nd PANIC, Charlotte, NC, February 3-5, 2014. Get PDF Here “Liquid and Solid-State 1H, 13C, and 11B qNMR Analysis of Fruitex-B®– A Calcium Fructoborate Comple: Chemical Structure and identification, quantitative analysis and stability study”, Boris Nemzer, John C. Edwards, presented at the 2nd PANIC, Charlotte, NC, February 3-5, 2014. Get PDF Here

Read More

Herbal Supplement for Erectile Dysfunction Found to Contain Thio Structural Analog of Sildenafil (Viagra)

A herbal supplement marketed to alleviate erectile dysfunction was recently submitted for testing in our laboratory because it was surprisingly effective considering it should only contain the traditional herbals utilized for this problem such as Oyster, 2-Deoxy-D Glucose, Barberry, Snow Lotus, Bombyx Mori L., Ginger Root, Salfron Crocus. Above: 1H NMR of ED Herbal Supplement - this is an extract of the powder from  the capsules into 80:20 CD3CN:D2O - Observed suspicious specific small molecule peaks - herbals are usually broad featureless complex mixture spectra. This is something in different - a specific drug material appears to have been added.Comparison with the spectrum of Viagra (Sildenafil Citrate) below shows a strong similarity between the 2 active ingredients. We also obtained the COSY, 13C and DEPT NMR Spectra on the ED herbal supplement. These are shown below. The analysis of the NMR data led us to find that the extractable components of the sample contained predominantly Sulfoaildenafil (thioaildenafil) which is a strutural analog of Sildenafil (Viagra) and is not approved by any health regulation agency for use in erectile dysfunction medicines or supplements. Apparently these structural analogs to Viagra are found widely in herbal supplements sold for this malady. I guess…

Read More

Liquid and Solid-State 1H, 13C, and 11B qNMR Analysis of Fruitex-B®– A Calcium Fructoborate Comple: Chemical Structure and identification, quantitative analysis and stability study

A poster on the following abstract will be presented at the 2nd PANIC Conference, Charlotte NC, Feb 3-5, by Boris Nemzer, Futureceuticals Inc., Momence IL, John C. Edwards, Process NMR Associates, Danbury CT Fruitex-B® is a patented plant mineral complex that is marketed as a nutritional supplement with potential health benefits for conditions linked to inflammation such as bone, joint and cardiovascular conditions. The product is a calcium fructoborate complex formed by the reaction of boric acid with fructose and calcium carbonate. Liquid and solid-state 13C and 11B NMR was utilized to establish a baseline for product quality and to establish a robust testing method for both identification and quantification of the mono-complex and the di-complex present in the product, as well as free borate and free fructose that is present in the finished product. The effect of varying the molar ratio of the complex components was studied by 11B and 13C NMR to establish the relative amounts of free borate, free fructose, and mono-/di-complex present in the products formed by the manufacturing recipe changes. A quantitative 11B NMR method was developed to quantify the amount of Fruitex-B®present in products where it was tableted or capsuled with magnesium stearate or…

Read More

Register to Attend PANIC 2014 ! Deadline for Poster Submissions is December 20

The 2nd Annual Practical Applications of NMR in Industry Conference (PANIC) will be held February 3-5 in Charlotte, NC. An excellent scientific agenda has been put together (see here). The Brochure is available here. Take note of the early registration (January 10, 2014) and poster submission (December 20, 2013) deadlines. John Edwards of Process NMR Associates is on the organizing committee of PANIC and has been appointed as Treasurer of the Conference company. John will be presenting an oral presentation in the one of the Nutraceutical Session:                NMR-Based Authentication of Nutraceuticals, Herbal Supplements, and Food Additives: Economic- and Efficacy-Driven Adulteration of Aloe Vera, Herbal Erectile Dysfunction Supplements, and Acacia Gum                                                                                                 John Edwards, Ph.D., Process NMR Associates, LLC - Biography Multinuclear NMR spectroscopy offers an outstanding ability to perform targeted and non-targeted analysis of nutraceuticals, herbal supplements, and food additives. Economic adulteration of these materials with lower…

Read More

Beware of Adulteration of “Herbal Supplements” for Erectile Dysfuntion

We recently performed an analysis of a competitive product for a company working on developing "herbal supplements" for erectile dysfunction. They ended up not paying for the analysis so we thought we would just publish it generically as a "point of interest". It was described to us that the product worked incredibly well which immediately made it suspicious ... NB: we didn't actually try it out ourselves. The bottom line is that the product was not "herbal" at all .. it was thiosildenafil an analog of Viagra. "Herbal Supplement" Viagra Stacked comparison plot. COSY Beware out there. If you are on alpha-blockers for heart condition and buy an innocent looking "herbal" for ED issues .. it may actually be pharmaceutical grade viagra with all the use warnings that go with it.

Read More

MestreLab MNova Users Meeting – SMASH 2013 – PNA NMR Presentation

"Utilization of MNova in a Commercial NMR Testing Laboratory for: 1) Development of Automated Quantitative Analysis Methods by Direct Internal Standard NMR Measurements, and 2) Pre-Processing of Large NMR Datasets for Chemometric Regression Analyses to Derive Chemical and Physical Properties" - presented by John Edwards at the MNova Users Meeting - SMASH 2013 - Santiago de Compostela, Spain, September 22, 2013 PDF of Presentation Automated 1H qNMR analysis of complex mixtures - example of aloe vera powder 200x Final automated analysis output for aloe vera analysis - assignments and quantitative output. Chemometric analysis - spectrum processing and X-matrix preparation performed in MNova - ascii output imported into Eigenvector Research Solo for PLS regression or PCA analysis. Correlation of 1H NMR at 300 or 60 MHz with GC analysis of EPA and DHA content (wt%).  

Read More

Comparison of 60 and 300 MHz 1H NMR Data – Prediction Models for EPA and DHA Omega-3 Fatty Acid Content

At the recent ACS NERM 2013 meeting in New Haven CT, John Edwards gave a talk on the comparison of 60 and 300 MHz 1H NMR based predictive models for EPA and DHA omega-3 fatty acid content in a fish oil manufacturing process. The presentation can be found here..... PDF Presentation Note - spectra are read into the chemometrics software backwards ...

Read More

SMASH Posters Cover Aloe Vera NMR Test Method, Heavy Petroleum Average Molecule Characterization, and 60 MHz Permanent Magnet NMR Applications

Quantitative 1H qNMR Method for Complex Mixture Analysis: Determination of Acetylated Polysaccharides, Glucose, Maltodextrin, Isocitrate, Preservatives, Additives and Degradation Products in Aloe Vera Leaf Juice - Raw Material and Consumer Products Practical Applications of Compact, Cryogen-Free High-Resolution 60 MHz Permanent Magnet NMR Systems for Reaction Monitoring and Online/At-Line Process Control Calculation of Average Molecular Descriptions of Heavy Petroleum Hydrocarbons by Combined Analysis by Quantitative 13C and DEPT-45 NMR Experiments

Read More

Process NMR Associates to Contribute Invited Talk and 3 Posters at the 1st Practical Applications of NMR in Industry Conference (PANIC), October 15-17, Schaumburg IL

News - Dr. John Edwards of Process NMR Associates will be presenting the following 3 posters and invited talk at the 1st Practical Applications of NMR in Industry Conference (PANIC), Schaumburg, IL, October 15-17, 2012 Invited Talk On-line Applications of 60 MHz High-Resolution NMR Systems in Industry: Direct Measurements, Chemometric Correlations, and Multiple Spectroscopy Data Fusion John C. Edwards Process NMR Associates, LLC, Danbury, CT For the past two decades high resolution 1H NMR systems combined with chemometric analyses have been utilized in refineries and chemical plants to predict the chemical and physical properties of process streams and finished products. The ability to perform these analyses with on-line NMR instrumentation has allowed tighter control and optimization of the plant to obtain margin improvement, reduced reworking of off-specification materials, and higher yields of finished products. Examples of refinery and petrochemical applications will be given along with some examples of multinuclear NMR applications utilizing 31P and 19F NMR. The permanent magnet based 1.5 Tesla NMR instruments will be described along with a description of how these compact, cryogen-free NMR systems can be utilized on the bench-top or in the fume-hood as continuous or stop-flow chemistry sensors for reaction monitoring, mixing/dilution monitoring, or…

Read More

Process NMR Associates to Present 3 Posters at SMASH NMR Conference, September 9-12, 2012

News - John Edwards of Process NMR Associates will be presenting the following 3 posters at SMASH NMR Conference, Providence RI, September 9-12, 2012. Process NMR Associates will also have a vendor table where John will be available to discuss the exciting range of high and low resolution permanent magnet NMR products available through the company and it's partners Aspect AI and Cosa-Xentaur. Poster 1 Quantitative Proton Nuclear Magnetic Resonance Spectrometry (1H-NMR) for Determination of Acetylated Polysaccharides, Glucose, Maltodextrin, and Isocitrate in Aloe Vera Leaf Juice John C. Edwards, Process NMR Associates, Danbury, Connecticut Aloe Vera is a botanical component that is used widely in the cosmetic, natural product, herbal supplement, and pharmaceutical industries. The widespread use of Aloe Vera has lead to the need to adequately analyze the authenticity, quality, and quantity of the various components present in this material. The qNMR method described here was developed and validated by Process NMR Associates (Danbury, CT) and is similar to an independently validated method developed by Jiao et al [1]. The method described is to be included in an upcoming Monograph on Aloe Vera published by the American Herbal Pharmacopoeia. The method can be used for the detection and quantitation…

Read More

Whole Leaf Marker and Maltodextrin in Aloe Vera Raw Materials – Dry Weight Quantity – Extended 1H NMR Analysis Method

Process NMR Associates has developed an extension of its 1H NMR analysis of Aloe Vera raw materials and products analysis. Powder aloe vera raw materials (100x/200x) can be analyzed directly and juice samples (1x, 5x, 10x, commercial products) must be freeze dried for this analysis. The whole leaf markers utilized in this test to indicate the presence of whole leaf material are iso-citrate and iso-citrate lactone which are formed in the green leaf part of the aloe plant as part of the citric acid cycle. It is possible to assign and quantify the following components of an aloe vera juice or powder: * aloe vera components: acemannan, glucose, malic acid * whole leaf markers: isocitrate, iso-citrate lactone, citric acid * degradation products: lactic acid, acetic acid, fumaric acid, pyruvic acid, formic acid, succinic acid, and ethanol * adulterants: maltodextrin * preservatives: sorbate, benzoate * additives: sucrose, fructose, glycine, flavorants (contain ethanol and propylene glycol) For the components above it is possible to obtain a wt% of that component in a juice sample - the freeze drying process is then used to determine the wt% solids in the juice and the dry weight concentrations of the organic components in the solids.…

Read More

ASTM F2259-03 (2008) – Determining the Chemical Composition of Alginates by 1H NMR Spectroscopy

Alginate is a linear polysaccharide composed of mannuronate (M) and a-L-guluronate (G). The polysaccharide is characterized by the relative ratio of M/G, G-Content, and average length of blocks of G in the polymer. M and G are: ASTM F2259 recounts the standard sample preparation and 1H NMR analysis that allows the following parameters to be calculated: The 1H Spectra obtained on a typical alginate sample are show below: Finally the peaks representing the individual M and G components and sequences are deconvoluted from the spectrum. The intensities obtained from the deconvolution are input into the excel spreadsheet shown above and the various ratios, M and G content and a series of diads and triads are calculated along with some G block lkength information. It is the block length information that often reveals telling differences between samples. Process NMR Associates performs this analysis at a cost of $225 per sample. The samples, however, must be prepared by the customer using the methodology set forth in the test method.

Read More

The Role of NMR in FDA Mandated Identity Testing of Nutritional Supplements

Process NMR Associates Offers Testing, Consultation, and Support in Meeting Your Identity Testing, Laboratory Methodology, and Process Analytical Requirements for FDA DS CGMP Rule Compliance. In conjunction with 21 CFR 111, the FDA’s Office of Nutrition, Labeling and Dietary Supplements has instituted the Dietary Supplement Current Good Manufacturing Practice Rule (DS GCMP Rule) and the Interim Final Rule effective December 2010. Laboratory compliance, including identity testing and analytical method protocols are now required for any manufacturer, packager, labeler or holder of dietary supplements without the previous exemption based on number of full time employees within the company. Smaller companies, typically without in-house laboratory and testing facilities, now need to obtain such services to meet the new compliance rules. Process NMR Associates (PNA), the process analytical consulting company and analytical testing company with over 45 years of experience in the field of nuclear magnetic resonance spectroscopy ("NMR") and organic spectroscopy (FTIR, NIR, ESR) is now offering expanded services for DS GCMP Rule compliance. As an example, The International Aloe Science Council (IASC), a trade association representing the global aloe vera industry, has selected Process NMR Associates, LLC (PNA) as its primary provider for Nuclear Magnetic Resonance (NMR) spectroscopic measurement of aloe…

Read More

Press Release: IASC Chooses Process NMR Associates to Provide Analytical Services for Certification Program

The International Aloe Science Council (IASC), a trade association representing the global aloe vera industry, has selected Process NMR Associates, LLC (PNA) as its primary provider for Nuclear Magnetic Resonance (NMR) spectroscopic measurement of aloe vera in regards to the organizations seal-based certification program. PNA’s services include measurement of aloe vera concentration, sacharride distributions, formulation ingredients, and, contaminant/degradation products, in aloe vera powders, whole leaf extracts, whole leaf and inner leaf gel concentrates, drink concentrates, and, ready to drink formulations. The IASC certification program, which offers manufacturers the ability to place a seal on products demonstrating that it meets the established standards for quality and purity of aloe vera products available in the marketplace, has elected to use quantitative 1H NMR analysis as a means to determine compliance. “We are pleased to partner with Process-NMR Associates for providing analytical services related to the certification program,” said Devon Powell, Executive Director of the IASC. “PNA has demonstrated its capability to provide excellent analytical services in a timely manner to the organization and aloe vera industry at-large.” PNA performs the NMR methodology prescribed by IASC, quantifying constituents such as acemannan, and glucose, identifying breakdown products such as acetic acid, lactic acid, pyruvic…

Read More