Are Purple Sweet Potato Extract And Asian Purple Yam The Same Thing?
May 23, 2025
What is Purple sweet potato extract?
Purple sweet potato extract is a concentrate of active ingredients extracted from purple sweet potato, mainly containing anthocyanins, selenium, dietary fiber, etc.
Key ingredients and mechanisms:
1. Anthocyanins: 5%-10% of dry weight (up to 30%).
2. Selenium: Every 100 grams contains 0.1-0.3 mg of selenium, and its main effects are anti-cancer and immunity enhancement.
3. Dietary fiber: 3%-5%, promotes intestinal peristalsis and inhibits fat absorption.
4. Trends: The global anthocyanin market is expected to reach US$630 million in 2027, with purple sweet potato as one of the main raw materials.
Benefits:
1. Antioxidant and anti-aging
Purple potato extract can remove free radicals and reduce skin wrinkles. Clinical studies have shown that it can inhibit elastase activity by 40%.
2. Cardiovascular protection
It can reduce the oxidation rate of low-density lipoprotein by 37% and reduce the risk of atherosclerosis.
3. Anti-cancer potential
In vitro experiments show that it has an inhibition rate of over 50% on HepG2 cells and inhibits the proliferation of liver cancer and gastric cancer cells.
4. Sugar control and weight loss
Purple potato powder is glycemic index (GI value) is only 35, lower than that of ordinary sweet potatoes.

Application:
1. Food industry
It can be used as a natural pigment to replace synthetic pigments, which is healthier. Purple potato powder is used in baking and beverages.
2. Health products
Sweet potato purple powder can be used to make anti-fatigue capsules and eye protection tablets to protect the eyes from blue light damage.
3. Cosmetics
It can be used as an ingredient in anti-aging essence.
Purple Sweet Potato Extract vs asian purple yam Extract:
Purple sweet potato extract and purple yam extract are not the same thing. Some merchants label purple yam as "purple sweet potato", which leads consumers to buy it by mistake.
The core of purple sweet potato extract is anthocyanin (antioxidant), while the main ingredient of purple yam extract is diosgenin. In addition, purple sweet potato contains allergenic protein (Sporamin), and 0.3% of people develop rashes after eating it.
| Contrast | Purple Sweet Potato Extract | Purple Yam Extract |
| Source | Dioscorea | Dioscoreaceae |
| Core ingredients | Anthocyanins, selenium, dietary fiber | Dioscin, mucin, polysaccharide |
| Benefits | Antioxidant, anti-cancer, eye protection | Strengthen the spleen and stomach, regulate hormones |
| market penetration | Global mainstream (accounting for 60% of anthocyanin raw materials) | Asian regional applications (mainly China, Japan and South Korea) |
Contact Us:
Fruiterco is an export company that mainly produces plant extracts, health product raw materials, and cosmetic raw materials. The company has a 20+ professional service after-sales team.
Our products are sold to North America, Europe, Australia, South America and Asia. Our products have passed quality inspection and also support customer re-inspection. If you want to buy purple sweet potato extract, you can contact us: Email: info@fruiterco.com.
References:
1. https://pmc.ncbi.nlm.nih.gov/articles/PMC6864833/
2. https://www.medicalnewstoday.com/articles/281438
3. https://growwithdrjoanette.com/purple-sweet-potatoes/
4. https://pmc.ncbi.nlm.nih.gov/articles/PMC6770014/
5. https://www.eatingwell.com/article/7960891/can-you-eat-sweet-potato-skin/
6. https://www.eatingwell.com/are-sweet-potatoes-healthy-8400304
7. https://au.sfihealth.com/health-insights/liver-health-detox/what-the-research-says-about-how-to-eat-your-way-to-a-healthy-liver-flordis/
8. https://mooies.co.uk/ube-extract-and-purple-sweet-potato-powder/
9. https://suncorefoods.com/products/purple-sweet-potato-powder#:~:text
10. https://pmc.ncbi.nlm.nih.gov/articles/PMC6360596/






