The total of nine carotenoids was analysed by HPLC using a C30 column and PDA detection. The total carotenoid content for all cultivars ranged from 1.44 to 40.13 μg/g DM. Yellow cultivars showed a much higher average total carotenoid content (26.22 μg/g DM) when compared to red/purple-fleshed potatoes (5.69 μg/g DM). 15 апр. 2016 г.
Do potatoes have carotenoids?
The carotenoids of potato are primarily oxygenated carotenoids, also known as xanthophylls (Brown et al. 1993). White-fleshed potatoes have 5–10 mg kg−1 FW of total carotenoids, while yellow-fleshed potatoes have 10–35 mg kg−1 FW.
How much carotenoids are in A sweet potato?
The carotenoid contents ranged from 1.131 to 3.908 mg/100 g dry weight in yellow-fleshed cultivars and from 14.791 to 46.187 mg/100 g dry weight in orange-fleshed cultivars (Table 8.1). Seventeen carotenoids were detected in yellow- and orange-fleshed sweet potatoes via HPLC analysis (Fig. 8.2).
How do you calculate carotenoids?
The total carotenoid content was calculated using the following formula: Carotenoids content μg / g = A × V mL × 1 0 4 A 1 cm 1 % × P g where A = Absorbance; V = Total extract volume; P = sample weight; A1% = 2592 (β-carotene Extinction Coefficient in petroleum ether).
What are the 3 carotenoids?
α-Carotene, β-carotene and β-cryptoxanthin are provitamin A carotenoids, meaning they can be converted by the body to retinol (Figure 1). Lutein, zeaxanthin, and lycopene are nonprovitamin A carotenoids because they cannot be converted to retinol (Figure 2).
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