Publications by authors named "Yanqiang Yao"

Article Synopsis
  • Purple-fleshed sweetpotatoes (PFSPs) are a nutritious food high in anthocyanins, and their nutrient changes during steaming were examined in this study.
  • Steaming decreased starch content and increased soluble sugar in all PFSP varieties, with Guangshu20 showing the most significant changes.
  • The study also identified 54 volatile organic compounds (VOCs) in PFSPs, indicating that taste and sweetness are affected by anthocyanins and soluble sugars, providing insights for better processing of PFSPs.
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Sweetpotatoes are a great source of carotenoids, which are important for human health and have attracted increasing attention. This study examined the impact of the steaming method on the contents of carotenoids, starch, soluble sugar, volatile organic compounds, and pasting properties of nine table-stock sweetpotatoes with different carotenoids content (from 3.21 to 233.

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Sweet potato provides rich nutrients and bioactive substances for the human diet. In this study, the volatile organic compounds of five pigmented-fleshed sweet potato cultivars were determined, the characteristic aroma compounds were screened, and a correlation analysis was carried out with the aroma precursors. In total, 66 volatile organic compounds were identified.

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The effects of different cooking methods on purple-fleshed sweetpotato (PFSP) metabolites were systematically explored, containing the changes of starch, soluble sugar, volatile organic compounds and non-target metabolites after steaming, boiling and baking. Compared to raw samples, the steamed samples showed the greatest changes in starch (degraded from 53.01% to 39.

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