期刊
FOODS
卷 11, 期 3, 页码 -出版社
MDPI
DOI: 10.3390/foods11030264
关键词
flat leaf kale; low temperature; phytochemicals; carotenoids; polyphenols; glucosinolates
资金
- Unity through Knowledge Fund [12/17]
- Grant for Scientific Research and Artistic Work from the University North [UNIN-BIOTEH-21-1-1]
Low temperatures have significant effects on the physiological status and phytochemical content of kale sprouts, increasing proline content, decreasing sprout yield, reducing carotenoid and flavonoid content, and increasing phenolic acid and total glucosinolates content.
Consumption of plants in the juvenile stage becomes popular because sprouts are easy to grow, and they can be a tasty source of micro- and macro-nutrients and various phytochemicals. However, some environmental factors during sprout growth can affect their characteristics. In this article, we investigated how low temperatures during cultivation (8 degrees C) and additional exposure to freezing temperatures (-8 degrees C) affect the physiological status and phytochemical content of kale (Brassica oleracea var. acephala) sprouts compared to the control grown at 21 degrees C. We conducted five independent laboratory experiments and found that low temperature significantly increased proline content and decreased sprouts yield. In addition, low temperature caused a significant decrease in carotenoid and flavonoid content, while phenolic acid content and total glucosinolates content increased, but individual glucosinolates were differentially affected. Our results indicate that low temperatures affect the physiological status of kale sprouts and affect the content of phytochemicals.
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