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Updated: Dec 18, 2025

High-throughput, Microscale Protocol for the Analysis of Processing Parameters and Nutritional Qualities in Maize Zea mays L.
Published on: June 16, 2018
Biosynthesis and accumulation of multi-vitamins in black sweet corn (Zea mays L.) during kernel development
Xiaodan Hu1, Jianhua Liu2, Wu Li2
1School of Food Science and Engineering, South China University of Technology, Ministry of Education Engineering Research Centre of Starch and Protein Processing, Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, Overseas Expertise Introduction Center for Discipline Innovation of Food Nutrition and Human Health (111 Center), Guangzhou, China.
Background:
Black sweet corn as an edible fruit has various nutritional qualities. This study discusses changes in the vitamin C and E, folate, and carotenoid content during black sweet corn maturation, and also the effects of preharvest weather conditions and of related genes in multi-vitamin biosynthesis pathways.
Results:
Most vitamin levels improved, especially vitamin C and carotenoid levels, while the folate content dropped rapidly. Transcript levels of most genes in folate biosynthesis showed trends that were similar to the content changes. VTC2 and GLDH, which are regulated by light, had high expression levels leading to an increase in ascorbate content during maturation. γ-Tocotrienol is the main vitamin E component, and HGGT, the key gene controlling the synthesis of tocotrienols, had a much higher expression level than other genes. Lutein and zeaxanthin were the dominant carotenoid components. A rapid reduction in the transcription level of LCYε could result in a lower lutein production rate .
Conclusion:
Black sweet corn has a high nutritional value and is rich in vitamins, including zeaxanthin, γ-tocotrienols, and ascorbic acid. The best harvest time is between 20-25 days after pollination (DAPs) when kernels had a good taste as well as relatively high vitamin levels. © 2020 Society of Chemical Industry.
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