Relationship between Hunter Color Values and β-Carotene Contents in White-Fleshed African Sweetpotatoes (Ipomoea batatas Lam)
✍ Scribed by Ameny, Michael A; Wilson, Paul W
- Book ID
- 101223721
- Publisher
- John Wiley and Sons
- Year
- 1997
- Tongue
- English
- Weight
- 189 KB
- Volume
- 73
- Category
- Article
- ISSN
- 0022-5142
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✦ Synopsis
White-Ñeshed sweetpotatoes (Ipomoea batatas (L) Lam) are a major food crop in Uganda. This study was done to evaluate carotenoid content in sweetpotatoes and to relate the color of the sweetpotatoes to the b-carotene present. A Hunter Color Tristimulus Meter was used to determine the color and the b-carotene was determined by reverse-phase HPLC. Regression analysis was carried out on the color values L, a, b, b/a and tan~1 b/a to determine which color value could be used to express the content of b-carotene in white-Ñeshed sweetpotatoes. The "bÏ color value appeared to be the best estimation for correlation at 0É74 in this study for raw roots and 0É09 for pure e. The "aÏ value was 0É39 for raw roots and 0É16 for pure e, L was [0É74 for raw roots and [0É45 for pure e.