Definition of provitamin in English:

provitamin

noun ˈprəʊvɪtəmɪnproʊˈvaɪdəmən

Biochemistry

A substance which is converted into a vitamin within an organism.
〔生化〕前维生素，维生素原
Example sentencesExamples
- Beta carotene, a provitamin found in plants and their pigments, is a benign source of vitamin A and is an antioxidant with possible anticarcinogenic properties.
- It is a fat-soluble substance that is divided into retinol and provitamin A. Retinol is the active form of vitamin A usually found in animal products, while provitamin A is found in fruits and vegetables.
- Sweet potatoes are also an excellent source of provitamin A, which the body converts into vitamin A.
- The study supports the recommendation of a safe limit to the amount of vitamin A intake for women and confirms that toxicity is not a concern with provitamins such as beta-carotene.
- However, the Inuit population infrequently consumes vegetables in general, including certain yellow and green ones that contain provitamin A carotene.

Definition of provitamin in US English:

provitamin

nounproʊˈvaɪdəmənprōˈvīdəmən

Biochemistry

A substance which is converted into a vitamin within an organism.
〔生化〕前维生素，维生素原
Example sentencesExamples
- However, the Inuit population infrequently consumes vegetables in general, including certain yellow and green ones that contain provitamin A carotene.
- The study supports the recommendation of a safe limit to the amount of vitamin A intake for women and confirms that toxicity is not a concern with provitamins such as beta-carotene.
- Beta carotene, a provitamin found in plants and their pigments, is a benign source of vitamin A and is an antioxidant with possible anticarcinogenic properties.
- Sweet potatoes are also an excellent source of provitamin A, which the body converts into vitamin A.
- It is a fat-soluble substance that is divided into retinol and provitamin A. Retinol is the active form of vitamin A usually found in animal products, while provitamin A is found in fruits and vegetables.

单词	provitamin
释义	Definition of provitamin in English: provitamin noun ˈprəʊvɪtəmɪnproʊˈvaɪdəmən Biochemistry A substance which is converted into a vitamin within an organism. 〔生化〕前维生素，维生素原 Example sentencesExamples Beta carotene, a provitamin found in plants and their pigments, is a benign source of vitamin A and is an antioxidant with possible anticarcinogenic properties. It is a fat-soluble substance that is divided into retinol and provitamin A. Retinol is the active form of vitamin A usually found in animal products, while provitamin A is found in fruits and vegetables. Sweet potatoes are also an excellent source of provitamin A, which the body converts into vitamin A. The study supports the recommendation of a safe limit to the amount of vitamin A intake for women and confirms that toxicity is not a concern with provitamins such as beta-carotene. However, the Inuit population infrequently consumes vegetables in general, including certain yellow and green ones that contain provitamin A carotene. Definition of provitamin in US English: provitamin nounproʊˈvaɪdəmənprōˈvīdəmən Biochemistry A substance which is converted into a vitamin within an organism. 〔生化〕前维生素，维生素原 Example sentencesExamples However, the Inuit population infrequently consumes vegetables in general, including certain yellow and green ones that contain provitamin A carotene. The study supports the recommendation of a safe limit to the amount of vitamin A intake for women and confirms that toxicity is not a concern with provitamins such as beta-carotene. Beta carotene, a provitamin found in plants and their pigments, is a benign source of vitamin A and is an antioxidant with possible anticarcinogenic properties. Sweet potatoes are also an excellent source of provitamin A, which the body converts into vitamin A. It is a fat-soluble substance that is divided into retinol and provitamin A. Retinol is the active form of vitamin A usually found in animal products, while provitamin A is found in fruits and vegetables.
随便看	construe construed construer construes construing consts consubstantial consubstantialism consubstantiality consubstantiality consubstantially consubstantiation consubstantiations consubstantiative consuetude consuetudinaries consuetudinary consuetudinary consul consular consular consularity consulate consulates consul general 陈世美陈兵陈列陈化粮陈套陈年陈情陈放陈旧陈皮 Verformungswiderstand Verformungszone verfrachten Verfrachter Verfremdung verfressen verfrühen verfrüht Verfuegungsgeschaeft verfuettern