期刊
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
卷 18, 期 6, 页码 -出版社
MDPI
DOI: 10.3390/ijms18061246
关键词
germination; sweet corn; phenolic biosynthesis; antioxidant activity
资金
- Science and Technology Planning Project of Guangdong Province-China [2016B020233004, 2014B070706012]
- Guangdong Agricultural Seeds Industrial Common Technology [2016LM2148]
Sweet corn is one of the most widely planted crops in China. Sprouting of grains is a new processes to increase the nutritional value of grain products. The present study explores the effects of light on the nutritional quality of sweet corn sprouts. Gene expression of phenolic biosynthesis, phytochemical profiles and antioxidant activity were studied. Two treatments (light and dark) were selected and the morphological structure of sweet corn sprouts, as well as their biochemical composition were investigated to determine the effects of light on the regulation of genes responsible for nutritional compounds. Transcription analyses for three key-encoding genes in the biosynthesis of the precursors of phenolic were studied. Results revealed a negative regulation in the expression of (Zm)PAL with total phenolic content (TPC) in the light group. TPC and total flavonoid content (TFC) increased during germination and this was correlated with an increase in antioxidant activity (gamma = 0.95 and 1.0). The findings illustrate that the nutritional value of sweet corn for the consumer can be improved through germination to the euphylla stage.
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