What does it take in terms of process analysis and control to manufacture jams, purees, and fruit juice from fresh, sweet summer fruits? Historically, wet chemistry methods have been been used to analyze raw materials and fruit juice products in a manufacturing setting, but this is a slow tedious process and for labs requiring a high turnover of samples is not efficient or timely.
At the J.M. Smuckers Co. in Orville, Ohio, preserves and jellies have been produced since the early 1920s and until a few years ago, their Discovery Lab used traditional wet chemistry methods to analyze glucose, fructose, and sucrose using this very slow process that did not provide their R&D department with timely results. In 2013, they modified their lab to include a discrete analysis system (Thermo Scientific Arena 20 Photometric Analyzer) and automated their test methods. Where it used to take up to one week to analyze just the sugars in fruit juice and purees, they could now analyze 50 samples in one hour and test for acetic, ascorbic, and citric acids in addition to the sugars.
Our range of automated analyzers have test kits that can reliably measure the following sugars:
D-Glucose + D-Fructose
D-Glucose + D-Fructose + Sucrose
They are optimized for use with the analyzers and have been developed for cost-efficient analysis and quality control while offering flexibility, speed, measurement accuracy, and precision. Standards are available to ensure that results are accurate and repeatable. In homogeneous juice samples, 100 samples can be analyzed for both glucose and fructose in 90 minutes with first results available in less than 15 minutes. Further savings can be realized as a result of reduced reagent usage and waste production; and, the cost is less than 20 cents per test.
Now that we have the jam, the only other necessary ingredient is peanut butter for a traditional American snack of peanut butter and jam on toast!
More resources on this topic that may be of interest:
Our online Food Community pages, a dedicated resource for our Food and Beverage customers and featuring the latest on-demand webinars, videos, application notes, and much more.
Are you measuring sugars in your fruit juice and puree samples and is automated photometric determination of interest to your laboratory? If so, we would like to hear about your experiences.
Liisa Otama is an International Application Specialist for Discrete Analyzers providing application support for food and beverage testing and water analysis in the Chromatography and Mass Spectrometry Division at Thermo Fisher Scientific, Inc. Her expertise is highly customer-focused and includes evaluating industrial product feedback and addressing inquiries, supporting customer training, and identifying new customer needs. Since 2008, she has held several positions ranging from process engineering to R&D. Liisa earned a B.Sc. in analytical chemistry from University of Helsinki, Finland, and has six publications and a patent to her credit.