Cyanogenic Glycoside Analysis in American Elderberry

Area of Science:

• Food Science
• Plant Chemistry
• Analytical Chemistry

Background:

• Cyanogenic glycosides (CNGs) are plant compounds that can release toxic hydrogen cyanide.
• The presence and levels of CNGs in American elderberry (AE) fruit are not well-established.
• Ensuring the safety of food products derived from AE is crucial.

Purpose of the Study:

• To develop and validate sensitive methods for quantifying CNGs in AE.
• To determine the total cyanogenic potential (TCP) of various AE tissues.
• To assess the safety of AE products for consumption.

Main Methods:

• Developed and optimized a liquid chromatography-tandem mass spectrometry (LC-MS/MS) method for intact CNG quantification.
• Modified a picrate paper test for total cyanogenic potential (TCP) analysis.
• Utilized camera-phone imaging and UV-Vis spectrophotometry for TCP assessment.

Main Results:

• No quantifiable CNGs were found in commercial AE juice.
• CNG levels in AE fruit tissues ranged from 0.12 to 6.38 µg/g.
• TCP was highest in stems and green berries, with overall low concentrations in all tissues.

Conclusions:

• Developed robust analytical methods for CNG and TCP assessment in AE.
• AE tissues contain generally low levels of CNGs, indicating safety for consumers.
• This study clarifies the safety profile of American elderberry products.