I have tried to find published data on the sale of commercially available exhausted (spent) material, i.e., the sale of an ingredient that has been depleted of a group of moleculeds of interest but was sold as genuine full spectrum material. From converdsations with industry members, I have been told that such practices occur, particularly with essential oil containing ingredients, e.g., cinnamon, clove, etc, or with materials containing pungent compounds such as ginger and paprika. let me know if you have data to support such practicese in the herbal medicine trade.
I know in patchouli after distillation the the spent materials (Powder ) are used for instant sticks due to its pungent smell.
Regards
Spent woodchips from Sandalwood distillation is sold to incense manufacturers too.
I appreciate the feedback, I find this very interesting. However, the examples refer to exhausted materials being used as incense sticks, and not as food or herbal medicine. So if there are examples of exhausted botanicals used for medicinal purpose, this would be my main topic of interest.
So you are talking about deceitful marketing of a spent product.Unlikely to find that happening in Australia. Manufacturers use a lot of testing.
Yes - there are reports that suggest that, e.g., the pungent compounts are extracted from ginger, and sold to the flavor industry, while the exhausted ginger is mixed with genuine ginger and sold to the food and dietary supplement industry. The same happens apparently with pepper and paprika. It's not that easily detected if the amount of exhausted material used to dilute is limited.
But it would show as lower levels of key ingredients therefore be regarded as a poor product.
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