AHPA Provides Industry Tools to Ensure Authentic Hoodia gordonii

(September 20, 2007) — The American Herbal Products Association (AHPA) announced today the availability of analytical methods to help dietary supplement manufacturers and ingredient suppliers ensure the authenticity of ingredients labeled as Hoodia gordonii. The two methods now available employ both microscopic and high-performance thin layer chromatographic (HPTLC) techniques. A high-performance liquid chromatographic method is also under development and will be released in the future.

“Producing quality herbal products is a challenging task that is guided by good manufacturing practices set by federal regulators, knowledgeable analytical laboratories, and individual companies’ in-house standards,” said Steven Dentali, PhD, AHPA’s vice president of scientific and technical affairs. “To help with this challenge, AHPA is providing tools to ensure the identity and quality of this ingredient.”

Promulgating these methods for quality assurance is part of AHPA’s ongoing initiative to provide practical tools that enable the dietary supplements industry to self-regulate. AHPA has developed similar pro-active solutions for industry issues by drawing upon the expertise of its staff and member companies.

This work was commissioned by members of the AHPA Hoodia gordonii Committee and managed by AHPA staff. It was initiated through solicitation of proposals that were evaluated by an independent expert scientific review panel, and was supported by AHPA member companies, Alkemists Pharmaceuticals, Inc. and CAMAG Scientific, Inc.

When properly employed, microscopy may reveal a test material’s unique cell components as well as any structures present that should not occur in a test material. HPTLC provides a characteristic visual display of compounds present in test materials.

“These techniques are complementary tools,” Dentali said. “As such, they should be jointly deployed in order to help determine the identity and purity of tested material.”

The methods, along with color images of the results, are on the AHPA website: http://www.ahpa.org/Default.aspx?tabid=165.


The American Herbal Products Association (AHPA) is the only national trade association devoted to herbal issues. Representing the core of the botanical trade—comprised of the finest growers, processors, manufacturers and marketers of herbal products—our mission is to promote the responsible commerce of herbal products. AHPA committees generate self-regulations to ensure the highest level of quality with respect to the way herbal products are manufactured, labeled, and sold. Celebrating our 25th anniversary in 2007! Website: www.ahpa.org.

Karen Robin, Director of Communications
American Herbal Products Association
Telephone: (301) 588-1171, x-107
Email: [email protected]

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