Residues and contaminants in medicinal herbs—A review. (December 2015)

• Record Type: Journal Article
• Authors: Tripathy, Vandana; Basak, B.B.; Varghese, Thania Sara; Saha, Ajoy
• Is Part Of: Phytochemistry letters. Volume 14(2015:Dec.)
• Page Start: 67
• Page End: 78
• Publication Date: 2015-12
• Subjects: Chemical contaminant -- Food safety -- Heavy metals -- Mycotoxins -- Pesticide residues -- PAH -- Medicinal herbs; Botanical chemistry -- Periodicals; Chimie végétale -- Périodiques; 572.205
• DOI: 10.1016/j.phytol.2015.09.003
• Languages: English
• ISSNs: 1874-3900

Abstract

Graphical abstract: Highlights: Occurrence of major contaminants/residues in medicinal herbs is discussed. Poor agricultural and processing practices are the cause for the contamination. Presence of contaminants adversely affects the consumers' health and trade. Stringent regulatory measures for these contaminants in medicinal herbs are needed. Abstract: With the increasing popularity and use of medicinal herbs, their global demand has gained momentum. Developing countries, including China, India and South East Asian (SEA) countries, are the centres of origin and major global suppliers for most of these traditionally used medicinal herbs. One of the factors affecting the quality of these herbs is the contamination of heavy metals, mycotoxins, pesticide residues, polycyclic aromatic hydrocarbons (PAHs) and fumigants. These contaminants can accumulate during the cultivation, storage and processing of herbs and may have adverse effects on consumer health. There have been various reports regarding the presence of these contaminants in medicinal herbs. This review discusses the important contaminants of medicinal herbs, the frequency and magnitude of their occurrences, the potential causes of contamination and their regulatory limits in medicinal herbs. The major challenge in the international trade of medicinal herbs is the lack of common guidelines, regulatory measures and monitoring body to strictly enforce their regulation.