Table 3 shows the carotenoid content of F1 and F2 fibers. F2 fiber (orange peel) showed a higher content of total carotenoids including lutein, zeaxanthin and b-carotene.
F1 fiber showed a higher content of cryptoxanthin and a-carotene.
The total carotenoid content of the F2 fiber was 1.21 mg/100 g, approximately 30% more carotenoids than the F1 fiber (0.95 mg/100 g).
The lutein was the carotenoid with the highest content in both orange fibers analyzed the carotenoid profile in orange peels and also found lutein among the major compounds.
The results indicate that carotenoids are concentrated in the peel because F2 fiber obtained only from the peel showed higher carotenoid contents than F1 fiber that contained peel, bagasse and seed.
The effect of temperature and processing on the carotenoid content still generates controversy among researchers. evaluated the carotenoid degradation in orange juice at different time/temperature conditions and concluded that lutein and carotenoids with provitamin-A activity were stable at temperatures of 60e70 _C, but at 85 _C or above, 50% of the initial carotenoid was degraded. Industrial processing (extraction and pasteurization) resulted in a reduction of the total
carotenoid content in orange juice. Conversely, mechanical processing reduces the size of the particles, improving carotenoid bioaccessibility
Table 3 shows the carotenoid content of F1 and F2 fibers. F2 fiber (orange peel) showed a higher content of total carotenoids including lutein, zeaxanthin and b-carotene.
F1 fiber showed a higher content of cryptoxanthin and a-carotene.
The total carotenoid content of the F2 fiber was 1.21 mg/100 g, approximately 30% more carotenoids than the F1 fiber (0.95 mg/100 g).
The lutein was the carotenoid with the highest content in both orange fibers analyzed the carotenoid profile in orange peels and also found lutein among the major compounds.
The results indicate that carotenoids are concentrated in the peel because F2 fiber obtained only from the peel showed higher carotenoid contents than F1 fiber that contained peel, bagasse and seed.
The effect of temperature and processing on the carotenoid content still generates controversy among researchers. evaluated the carotenoid degradation in orange juice at different time/temperature conditions and concluded that lutein and carotenoids with provitamin-A activity were stable at temperatures of 60e70 _C, but at 85 _C or above, 50% of the initial carotenoid was degraded. Industrial processing (extraction and pasteurization) resulted in a reduction of the total
carotenoid content in orange juice. Conversely, mechanical processing reduces the size of the particles, improving carotenoid bioaccessibility
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