Page 29 - Technical Saw Palmetto Booklet

MTC Industries, Inc.
Herbsine Bioengineering Co., Ltd.

Conclusion

Based on the tests and data presented in this technical brochure, we can reach the
following conclusions. Though produced in different places with different CO2
extraction lines and 3 oils are different in appearance, saw palmetto oil of supercritical
CO2 extraction has a similar quality, and GC, HPTLC, IR test can confirm this.

For further analysis, saw palmetto oil from Europe complies with EP regulations, but
content of several fatty acids doesn’t comply with USP, and unsaponifiable matters
content is low, this should be caused by over-refining. Saw palmetto oil from US
complies with both EP and USP, but the oil produced in US is not refined and contains
more wax and pigment and fiber.

It is not complicated to distinguish the authenticity of saw palmetto oil, but we need a
variety of methods to compare. It is unscientific just to rely on one certain experiment to
identify the authenticity.

At the same time, due to the complex of natural products, the flaws of certain data
cannot represent the authenticity of the product.
We need lots of experimental analytical verification and comparison to reach conclusion
of high-quality and pure natural saw palmetto oil.

At present, there is difference between USP and EP. Manufacturers may continue to
refine saw palmetto oil after CO2 supercritical extraction, which leads to differences in
the appearance and some certain parameters of the oil. These will increase the difficulty
for determination. Since some buyers and even users cannot analyze and compare these
parameters fully, we propose the following identification methods:

Basic identification: Suitable for users lacking experimental conditions to perform
initial screening.
- Odor: Characteristic with slight irritant smell.
- Freezing point:Oil starting solidification at 10-15℃, freezing is particularly obvious
with less sample.

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