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Phenolics Test

  • 271 per analysis
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  • 12 - 15 Business Days
    • |
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Technical data sheet

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Method description

Free polyphenols are extracted using an acidic methanol solution. Bound polyphenols are digested with a strong alkaline, neutralized, and extracted with acidic methanol. All sample extracts are reacted with a Folin-Ciocalteu’s reagent and sodium carbonate. The colored product can be read at 765 nm and compared to a Gallic Acid standard curve run concurrently.

Acceptable matrices

Fruits and vegetables, juices, fruit concentrates, and grains

Limit of quantitation

491 mg/Kg

Equipment

Spectrophotometer

Method reference

In-House, Miletic et al (2012) Phenolic Content of Plum AJCS 6(4) 681-687

Reportable unit

mg/Kg

Sample size requirements

50 grams

Additional information

Estimates or good sample descriptions are helpful.

*Prices and offerings are subject to change without notice.

Common Phenolics Test Testing Questions

While our sales and customer service team are happy to answer general testing questions, consultations typically start at a rate of $250 per 30 minutes regarding the interpretation of reported test results or questions about our test methods. We cannot consult on regulations, tolerance limits, or claims.

We make every effort to keep our methods and detection limits up to date according to the latest standards and qualifications. If you have any questions regarding the limit of detection/quantification or method references, please contact our Customer Service team at 1-800-245-5615.

Our standard turnaround time is 10 business days for most assays. There are some assays that require a longer turnaround time. We also offer a RUSH service that is half the time of the standard turnaround time of the assay at double the cost of the assay. A few assays that we provide cannot be rushed due to the nature of the test. Please check the specific assay you are interested in regarding the ability to RUSH the turnaround time.

Medallion Labs, a division of General Mills, offers multiple areas of expertise for analytical testing and product evaluation for the food and ingredient industry. Our areas of expertise include Chemical Analysis, Nutritional Analysis, Food Safety, Shelf Life Studies, Microbiology, Specialty Fibers, Physical Testing, Allergen Testing, as well as Product Evaluation (which includes Product Performance and Sensory Evaluation) and Technical Consulting/Method Development. Our methods are developed for the testing of food products and ingredients.

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