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Identity & Botany
| Attribute | Value |
|---|---|
| Canonical name | Purple Sweet Potato |
| Scientific name | Ipomoea batatas |
| Family / Genus | Convolvulaceae / — |
| Produce category | Root Vegetable |
| FSMA 204 covered? | No |
| PLU — conventional | 3034 |
| PLU — organic | 93034 |
| AGROVOC URI | c_7480 |
Source: GDF v2.1.1 s01_identity. External: FAO AGROVOC.
Varieties
Estimated commercial varieties: 15.
| Variety | Market share | Notes |
|---|---|---|
| Stokes Purple® Sweet Potato | 40% | Deep purple flesh with a tan skin. Known for its drier, denser texture and less sweet, nutty flavor compared to orange varieties. Exceptionally high in anthocyanins, making it a popular choice for hea |
| Okinawan Sweet Potato | 30% | White or tan skin with a vibrant, deep purple flesh. Offers a moderately sweet, slightly drier, and starchier texture with an earthy, sometimes vanilla-like flavor. A staple in Hawaiian and Asian cuis |
| Charleston Purple | 10% | Features both purple skin and deep purple flesh. Characterized by a moist texture and moderate sweetness, making it a good all-purpose variety. Developed for good yield and disease resistance, suitabl |
| Yamato Purple | 8% | Has purple skin and purple flesh. Known for its rich, sweet flavor and moist texture, often described as creamy. Popular in Japanese cuisine, excellent for roasting, steaming, and desserts. |
| Kona Purple | 7% | Similar to the Okinawan variety, with white/tan skin and purple flesh. Tends to be slightly drier and starchier with an earthy flavor profile. Frequently used in traditional Hawaiian dishes and for it |
Source: GDF v2.1.1 s04_varieties.variety_summaries.
Post-Harvest Handling
Temperature
- Chilling injury threshold: 55°F.
- Freezing point: 29.5°F. Hard limit.
- Handling urgency: 2 / 5.
Ethylene
| Property | Value |
|---|---|
| Production class | very_low |
| Production rate (20°C) | 0.05 uL/kg/h typical (0.01–0.1) |
| Sensitivity class | low |
| Sensitivity threshold | 10 ppm |
| Climacteric? | No |
Agent note: Sweet potatoes are non-climacteric with very low ethylene production and low sensitivity. Ethylene exposure can promote sprouting over long storage periods.
Mixed-load compatibility
Compatible with most produce; avoid strong odor emitters if possible, though absorption is low.
Operational flags
- Can be top-iced? No
- Light-sensitive? No
Source: GDF v2.1.1 s07_harvest_post_harvest.
Market Intelligence
Demand
Increasing, driven by health and wellness trends, culinary interest in unique ingredients, and growing ethnic markets.
Elasticity
| Metric | Value |
|---|---|
| Price elasticity | -0.8 |
| Income elasticity | 0.7 |
| Organic premium elasticity | -1.2 |
Market share by variety
| Variety | Share |
|---|---|
| Purple Sweet Potato (various cultivars) | 3.5% |
| Beauregard | 65% |
| Covington | 18% |
| Murasaki | 7% |
| O’Henry | 2% |
Pack sizes
- 40lb carton
- 3lb bag
- 5lb bag
Source: GDF v2.1.1 s09_market_intelligence.
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