The result shows that the extraction percentage of rose pigment is 7.3% with 95% alcohol immersion extraction.

结果表明，玫瑰花红色素用95%乙醇浸泡提取，提取率为7.3%。

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Beta carotene is a type of carotenoid, a plant pigment that is a provitamin for vitamin A. During its digestion and metabolism, a percentage is converted to vitamin A, a fat-soluble vitamin that is important for vision, growth and development, and healthy immune and reproductive function.

CNN: Should I take beta carotene as a supplement?