Changes in carotenoid pattern during development of Gardenia fruit
1993
Ichi, T. (Okayama Univ. (Japan). Faculty of Agriculture) | Katayama, T. | Tada, M.
Changes in the content and composition of carotenoid in gardenia (Gardenia jasminoides Ellis) fruit were examined during the development stage from anthesis to full maturity in order to elucidate the biosynthesis of crocin (digentiobiosyl 8,8'-diapocarotene-8,8'-dioate). The results obtained can be summarized as follows: 1) Gardenia fruits at the enlargement stage produced very small amounts of carotenoids, but after the beginning of mature process, biosynthesis of carotenoids started and carotenoid content in fruit increased sharply with process of maturation. The carotenoid content of fully matured fruit was approximately 45o mg%. 2) Gardenia fruits at all stages of the mature process contained only a small amount of C40-carotenoids such as beta-carotene, and the greater part of carotenoids accumulated in the fruit were glyco-ester derivatives of crocetin (8,8'-diapocarotene-8,8'-dioic acid) such as crocin. 3) Based on the changes in content of carotenoids at the various mature stage, several derivatives of crocetin appeared to be intermediates of crocin biosynthesis
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