Advances in research on the main nutritional quality of daylily, an important flower vegetable of Liliaceae

PeerJ. 2024 Aug 7:12:e17802. doi: 10.7717/peerj.17802. eCollection 2024.

Abstract

Daylily (Hemerocallis citrina) is a perennial herb of the genus Hemerocallis of Liliaceae. It is also an economically important crop and is widely cultivated. Daylily has nutritional, medicinal and ornamental values. The research literature shows that daylily is a high-quality food raw material rich in soluble sugars, ascorbic acid, flavonoids, dietary fiber, carotenoids, mineral elements, polyphenols and other nutrients, which are effective in clearing heat and diuresis, resolving bruises and stopping bleeding, strengthening the stomach and brain, and reducing serum cholesterol levels. This article reviews the main nutrients of daylily and summarizes the drying process of daylily. In addition, due to the existence of active ingredients, daylily also has a variety of biological activities that are beneficial to human health. This article also highlights the nutritional quality of daylily, the research progress of dried vegetable rehydration technology and dried daylily. In the end, the undeveloped molecular mechanism and functional research status of daylily worldwide are introduced in order to provide reference for the nutritional quality research and dried processing industry of daylily.

Keywords: Daylily; Flower vegetable; Hemerocallis; Liliaceae; Nutritional quality.

Publication types

  • Review

MeSH terms

  • Flowers / chemistry
  • Humans
  • Nutritive Value*
  • Vegetables / chemistry

Grants and funding

The research was supported by the Jiangsu Modern Agriculture (vegetable) Industrial Technology System Shuqian Promotion Demonstration Base Project (JATS2022-324) and the Priority Academic Program Development of Jiangsu Higher Education Institutions Project (PAPD). The Fruit and Vegetable Breeding and Germplasm Bank Construction of Suqian (SQ2022023) supported the APC of this article. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.