Variation of Major Chemical Composition in Seed-Propagated Population of Wild Cocoa Tea Plant <i>Camellia ptilophylla</i> Chang
Excessive intake of high-caffeine tea will induce health-related risk. Therefore, breeding and cultivating tea cultivars with less caffeine is a feasible way to control daily caffeine intake. Cocoa tea (<i>Camellia ptilophylla</i> Chang) is a wild tea plant which grows leaves with little...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-12-01
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| Series: | Foods |
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| Online Access: | https://www.mdpi.com/2304-8158/12/1/123 |
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| author | Xin-Qiang Zheng Shu-Ling Dong Ze-Yu Li Jian-Liang Lu Jian-Hui Ye Shi-Ke Tao Yan-Ping Hu Yue-Rong Liang |
| author_facet | Xin-Qiang Zheng Shu-Ling Dong Ze-Yu Li Jian-Liang Lu Jian-Hui Ye Shi-Ke Tao Yan-Ping Hu Yue-Rong Liang |
| author_sort | Xin-Qiang Zheng |
| collection | DOAJ |
| description | Excessive intake of high-caffeine tea will induce health-related risk. Therefore, breeding and cultivating tea cultivars with less caffeine is a feasible way to control daily caffeine intake. Cocoa tea (<i>Camellia ptilophylla</i> Chang) is a wild tea plant which grows leaves with little or no caffeine. However, the vegetative propagation of cocoa tea plants is difficult due to challenges with rooting. Whether natural seeds collected from wild cocoa tea plants can be used to produce less-caffeinated tea remains unknown, because research on the separation of traits among the seed progeny population is lacking. The present study was set to investigate the variation of caffeine and other chemical compositions in seed-propagated plant individuals using colorimetric and HPLC methods. It shows that there were great differences in chemical composition among the seed-propagated population of wild cocoa tea plants, among which some individuals possessed caffeine contents as high as those of normal cultivated tea cultivars (<i>C. sinensis</i>), suggesting that the naturally seed-propagated cocoa tea seedlings are not suitable for directly cultivating leaf materials to produce low-caffeine tea. Therefore, the cocoa tea plants used for harvesting seeds for growing low-caffeine tea plants should be isolated in order to prevent their hybridization with normal cultivated <i>C. sinensis</i> plants. Interestingly, the leaves of cocoa tea seedlings contained high levels of gallocatechin gallate (GCG) and would be a good source of leaf materials for extracting more stable antioxidant, because GCG is a more stable antioxidant than epigallocatechin gallate (EGCG), the dominant component of catechins in normal cultivated tea cultivars. Some plant individuals which contained low levels of caffeine along with high levels of amino acids and medium levels of catechins, are considered to be promising for further screening of less-caffeinated green tea cultivars. |
| first_indexed | 2024-03-11T10:01:26Z |
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| id | doaj.art-e6ab002649aa41379fd99cbbfa626532 |
| institution | Directory Open Access Journal |
| issn | 2304-8158 |
| language | English |
| last_indexed | 2024-03-11T10:01:26Z |
| publishDate | 2022-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Foods |
| spelling | doaj.art-e6ab002649aa41379fd99cbbfa6265322023-11-16T15:22:43ZengMDPI AGFoods2304-81582022-12-0112112310.3390/foods12010123Variation of Major Chemical Composition in Seed-Propagated Population of Wild Cocoa Tea Plant <i>Camellia ptilophylla</i> ChangXin-Qiang Zheng0Shu-Ling Dong1Ze-Yu Li2Jian-Liang Lu3Jian-Hui Ye4Shi-Ke Tao5Yan-Ping Hu6Yue-Rong Liang7Tea Research Institute, Zhejiang University, Hangzhou 310058, ChinaTea Research Institute, Zhejiang University, Hangzhou 310058, ChinaTea Research Institute, Zhejiang University, Hangzhou 310058, ChinaTea Research Institute, Zhejiang University, Hangzhou 310058, ChinaTea Research Institute, Zhejiang University, Hangzhou 310058, ChinaTea Research Institute of Pu’er City, Pu’er 665000, ChinaTea Research Institute of Pu’er City, Pu’er 665000, ChinaTea Research Institute, Zhejiang University, Hangzhou 310058, ChinaExcessive intake of high-caffeine tea will induce health-related risk. Therefore, breeding and cultivating tea cultivars with less caffeine is a feasible way to control daily caffeine intake. Cocoa tea (<i>Camellia ptilophylla</i> Chang) is a wild tea plant which grows leaves with little or no caffeine. However, the vegetative propagation of cocoa tea plants is difficult due to challenges with rooting. Whether natural seeds collected from wild cocoa tea plants can be used to produce less-caffeinated tea remains unknown, because research on the separation of traits among the seed progeny population is lacking. The present study was set to investigate the variation of caffeine and other chemical compositions in seed-propagated plant individuals using colorimetric and HPLC methods. It shows that there were great differences in chemical composition among the seed-propagated population of wild cocoa tea plants, among which some individuals possessed caffeine contents as high as those of normal cultivated tea cultivars (<i>C. sinensis</i>), suggesting that the naturally seed-propagated cocoa tea seedlings are not suitable for directly cultivating leaf materials to produce low-caffeine tea. Therefore, the cocoa tea plants used for harvesting seeds for growing low-caffeine tea plants should be isolated in order to prevent their hybridization with normal cultivated <i>C. sinensis</i> plants. Interestingly, the leaves of cocoa tea seedlings contained high levels of gallocatechin gallate (GCG) and would be a good source of leaf materials for extracting more stable antioxidant, because GCG is a more stable antioxidant than epigallocatechin gallate (EGCG), the dominant component of catechins in normal cultivated tea cultivars. Some plant individuals which contained low levels of caffeine along with high levels of amino acids and medium levels of catechins, are considered to be promising for further screening of less-caffeinated green tea cultivars.https://www.mdpi.com/2304-8158/12/1/123tea plantseedlingcatechinscaffeineamino acids |
| spellingShingle | Xin-Qiang Zheng Shu-Ling Dong Ze-Yu Li Jian-Liang Lu Jian-Hui Ye Shi-Ke Tao Yan-Ping Hu Yue-Rong Liang Variation of Major Chemical Composition in Seed-Propagated Population of Wild Cocoa Tea Plant <i>Camellia ptilophylla</i> Chang Foods tea plant seedling catechins caffeine amino acids |
| title | Variation of Major Chemical Composition in Seed-Propagated Population of Wild Cocoa Tea Plant <i>Camellia ptilophylla</i> Chang |
| title_full | Variation of Major Chemical Composition in Seed-Propagated Population of Wild Cocoa Tea Plant <i>Camellia ptilophylla</i> Chang |
| title_fullStr | Variation of Major Chemical Composition in Seed-Propagated Population of Wild Cocoa Tea Plant <i>Camellia ptilophylla</i> Chang |
| title_full_unstemmed | Variation of Major Chemical Composition in Seed-Propagated Population of Wild Cocoa Tea Plant <i>Camellia ptilophylla</i> Chang |
| title_short | Variation of Major Chemical Composition in Seed-Propagated Population of Wild Cocoa Tea Plant <i>Camellia ptilophylla</i> Chang |
| title_sort | variation of major chemical composition in seed propagated population of wild cocoa tea plant i camellia ptilophylla i chang |
| topic | tea plant seedling catechins caffeine amino acids |
| url | https://www.mdpi.com/2304-8158/12/1/123 |
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