provitamin

Questions have also been asked about the stability of the provitamin during storage and post-harvest processing, as well as its thermal stability during cooking.

也有人就维生素原在水稻的储存、收获后加工过程的稳定性，以及烹调过程中的热稳定性提出疑问。

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Marine extracts of wakame, sea lettuce and sea fennel, provide vitamins A, C, E and Provitamin B nourish and protect the skin.

海洋提取岩牙、海莴苣和海茴香、提供维生素A、C、E以及复合维他命B，滋养和保护皮肤。

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Main ingredients: fresh aloe juice extract, fresh milk, provitamin B 5, microelements, amino acid.

主要成份: 新鲜芦荟原汁精华 、 鲜牛奶 、 维他命原B5 、 微量元素 、 氨基酸等.

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Essential oil content of provitamin concentrate from pine needles ( Pinus massoniana Lamb.) was about 15%.

松针维生素原浓缩物中的精油（90℃～130℃馏份）其量约为维生素原浓缩物的15%。

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Preparation and application of provitamin concentrate from pine needles

松针维生素原浓缩物的研制和应用

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Effects of laser irradiation time and concentration of 7-DHC on photochemistry of provitamin D_3

激光辐照时间及7-DHC浓度对维生素D3的光化学影响

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Ingredients: olive leaves extract, cereus essence, provitamin B 5, protease, moisturizing factor etc.

成份: 橄榄叶萃取精华 、 仙人掌精华素 、 维他命原B5 、 蛋白酶 、 保湿剂等.

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