Influence of growing location harvesting season and post-harvest storage time on carotenoid biosynthesis in orange sweet potato (Ipomoea batatas) tuber flesh


Citation

Jamal P., . and Kammona S., . and Farah Ayuni Mohd Hatta, . and Rashidi Othman, . and Irwandi Jaswir, . Influence of growing location harvesting season and post-harvest storage time on carotenoid biosynthesis in orange sweet potato (Ipomoea batatas) tuber flesh. S488-S495. ISSN 2231-7546

Abstract

Carotenoid content in plants differs due to several factors such as cultivar maturity climate locality and storage. Improving the nutritional values of sweet potato is an important breeding goal and understanding the regulation genetics and inheritance of carotenoid biosynthesis are vital to achieve this. Environmental conditions can have a marked influence on the accumulation of carotenoids in sweet potato tubers. Little is known about the effects of location post-harvest storage time and harvesting season particularly on carotenoid biosynthesis. Therefore this study aimed to investigate the effects of growing location harvesting season and storage time on carotenoid biosynthesis in orange sweet potato tuber flesh. The results showed that orange sweet potato tubers contained -carotene and -carotene in the first and second harvesting season (year 2011 and 2012) whereas lutein and zeaxanthin were detected only in the third harvesting season (year 2013). Analysis of carotenoid profiles of the orange sweet potato tubers grown in three different locations confirmed that the harvesting season had a major effect on the total carotenoid content and the individual carotenoid compounds. The post-harvest storage time of sweet potato tubers also appears to have distinct effects on carotenoid biosynthesis the magnitude of the effects being dependent on the storage time harvesting season and location. The results of this study will help to understand the effects of location year of harvesting season and storage time on carotenoid accumulation in orange sweet potato tubers.


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Abstract

Carotenoid content in plants differs due to several factors such as cultivar maturity climate locality and storage. Improving the nutritional values of sweet potato is an important breeding goal and understanding the regulation genetics and inheritance of carotenoid biosynthesis are vital to achieve this. Environmental conditions can have a marked influence on the accumulation of carotenoids in sweet potato tubers. Little is known about the effects of location post-harvest storage time and harvesting season particularly on carotenoid biosynthesis. Therefore this study aimed to investigate the effects of growing location harvesting season and storage time on carotenoid biosynthesis in orange sweet potato tuber flesh. The results showed that orange sweet potato tubers contained -carotene and -carotene in the first and second harvesting season (year 2011 and 2012) whereas lutein and zeaxanthin were detected only in the third harvesting season (year 2013). Analysis of carotenoid profiles of the orange sweet potato tubers grown in three different locations confirmed that the harvesting season had a major effect on the total carotenoid content and the individual carotenoid compounds. The post-harvest storage time of sweet potato tubers also appears to have distinct effects on carotenoid biosynthesis the magnitude of the effects being dependent on the storage time harvesting season and location. The results of this study will help to understand the effects of location year of harvesting season and storage time on carotenoid accumulation in orange sweet potato tubers.

Additional Metadata

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Item Type: Article
AGROVOC Term: Sweet potatoes
AGROVOC Term: Ipomoea batatas
AGROVOC Term: Biosynthesis
AGROVOC Term: Carotenoids
AGROVOC Term: Climate
AGROVOC Term: Cultivars
AGROVOC Term: Growth
AGROVOC Term: Harvesting
AGROVOC Term: Storage
AGROVOC Term: Time
Geographical Term: Malaysia
Depositing User: Ms. Suzila Mohamad Kasim
Last Modified: 28 Apr 2025 05:35
URI: http://webagris.upm.edu.my/id/eprint/23973

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