The nectar of Lindl. contains sugar, amino acids and other nutritional components, suggesting that it could be developed for food and food additives. To understand the effects of the nectar on human health, we investigated its chemical constituents. Two new flavonoid glycosides, cameretiins A and B and , and two known flavonoid glycosides, kaempferol 3--(2''----coumaroyl)--D-glucopyranoside and tiliroside were obtained from the nectar of Lindl. Their structures were determined based on analysis of their spectroscopic data and by comparison with 1D NMR spectroscopic data of known compounds reported in the literature. Compounds were first isolated from the nectar of Lindl.
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http://dx.doi.org/10.1080/14786419.2020.1819269 | DOI Listing |
Plants (Basel)
April 2024
College of Forestry, Southwest Forestry University, Kunming 650224, China.
Research on var. (Lindl.) Hook.
View Article and Find Full Text PDFJ Agric Food Chem
May 2023
School of Biological Sciences, The University of Western Australia, Perth, Western Australia 6009, Australia.
Ma̅nuka honey is known for its strong bioactivity, which arises from the autocatalytic conversion of 1,3-dihydroxyacetone (dihydroxyacetone, DHA) in the floral nectar of (Myrtaceae) to the non-peroxide antibacterial compound methylglyoxal during honey maturation. DHA is also a minor constituent of the nectar of several other species. This study used high-performance liquid chromatography to test whether DHA was present in the floral nectar of five species in other genera of the family Myrtaceae: (Turcz.
View Article and Find Full Text PDFProtoplasma
November 2022
Department of Botany, University of Thessaloniki, 54124, Thessaloniki, Macedonia, Greece.
Chaenomeles japonica is an attractive ornamental shrub flowering in spring. It is also a valuable source of nectar and pollen for entomofauna. The study was carried out to investigate the structure of hypanthial nectaries present in the flowers of this species with the use of light and scanning electron microscopy.
View Article and Find Full Text PDFNat Prod Res
April 2022
Yunnan Provincial Engineering and Research Center for Sustainable Utilization of Honeybee Resources, Eastern Bee Research Institute, College of Animal Science and Technology, Yunnan Agricultural University, Kunming, China.
The nectar of Lindl. contains sugar, amino acids and other nutritional components, suggesting that it could be developed for food and food additives. To understand the effects of the nectar on human health, we investigated its chemical constituents.
View Article and Find Full Text PDFFood Chem
June 2019
College of Life and Environment Sciences, Huangshan University, Huangshan, China. Electronic address:
Honey, as a commercial product, is a target of adulteration through inappropriate production practices and deliberate mislabelling of botanical origin. Floral nectar protein could be a good marker for determining the source flowers of honey, especially monofloral honeys. Here, nectar and monofloral honey from Eriobotrya japonica Lindl.
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