Ultrasound-Enhanced Subcritical Fluid Extraction of Essential Oil from <i>Nymphaea alba var</i> and Its Antioxidant Activity

Zhao, Ying; Fan, Yangyang; Yu, Wengang; Jian, Wang; Lu, Wang-jin; Song, Xiqiang

doi:10.5740/jaoacint.18-0337

Cited by 12 publications

(6 citation statements)

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“…Besides its ornamental value, the waterlily also has edible and medicinal values [ 4 , 5 ]. The essential oil extracted from its petals has strong antioxidant activity [ 6 ] and significantly enriched flavonoids are present in the flower opening and closing process [ 7 ]. However, the short fresh-keeping period of cut flowers reduces their economic and ornamental value.…”

Section: Introductionmentioning

confidence: 99%

Transcriptome Analysis Revealing the Interaction of Abscisic Acid and Cell Wall Modifications during the Flower Opening and Closing Process of Nymphaea lotus

Zhou

et al. 2022

IJMS

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As a tropical flower, Nymphaea lotus is a typical night-blooming waterlily used in water gardening. Its petals are rich in aromatic substances that can be used to extract essential oils and as flower tea. However, the short life of the flower seriously affects the development of its cut flowers. At present, neither the mechanism behind the night-opening waterlily flower’s opening and closing nor the difference between day-opening and night-opening waterlily flowers’ opening and closing mechanisms are clear. In this study, endogenous hormone contents of closed (CP) and open (OP) petals were measured, and transcriptome analysis of CP and OP petals was carried out to determine the signal transduction pathway and metabolic pathway that affect flower opening and closing. ABA and cell wall modification were selected as the most significant factors regulating flowering. We used qRT-PCR to identify the genes involved in the regulation of flower opening in waterlilies. Finally, by comparing the related pathways with those of the diurnal type, the obvious difference between them was found to be their hormonal regulation pathways. In conclusion, the endogenous ABA hormone may interact with the cell wall modification pathway to induce the flowering of N. lotus. Our data provide a new direction for the discovery of key factors regulating the flower opening and closing of N. lotus and provide basic theoretical guidance for future horticultural applications.

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Section: Introductionmentioning

confidence: 99%

Transcriptome Analysis Revealing the Interaction of Abscisic Acid and Cell Wall Modifications during the Flower Opening and Closing Process of Nymphaea lotus

Zhou

et al. 2022

IJMS

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“…Water lilies are famous for their colorful flowers and strong fragrance [ 2 , 3 ]. The water lily flower is also widely used for essential oil extraction and its medicinal properties [ 4 , 5 ]. Most studies of the water lily mainly focus on genetic evolution, flowering rhythm, essential oil extraction, and seed biology.…”

Section: Introductionmentioning

confidence: 99%

“…Most studies of the water lily mainly focus on genetic evolution, flowering rhythm, essential oil extraction, and seed biology. However, very little information exists about the mechanism of water lily salt tolerance in saline waters [ 1 , 3 , 5 , 6 ]. Water lilies are generally cultivated in fresh water, which may explain why so few studies have investigated their responses to salt stress.…”

Section: Introductionmentioning

confidence: 99%

Insights into Adaptive Regulation of the Leaf-Petiole System: Strategies for Survival of Water Lily Plants under Salt Stress

Liu

Chen

et al. 2023

IJMS

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The water lily (Nymphaea tetragona) is an ancient angiosperm that belongs to the Nymphaeaceae family. As a rooted floating-leaf plant, water lilies are generally cultivated in fresh water, therefore, little is known about their survival strategies under salt stress. Long-term salt stress causes morphological changes, such as the rapid regeneration of floating leaves and a significant decrease in leaf number and surface area. We demonstrate that salt stress induces toxicity soon after treatment, but plants can adapt by regenerating floating leaves that are photosynthetically active. Transcriptome profiling revealed that ion binding was one of the most-enriched GO terms in leaf-petiole systems under salt stress. Sodium-transporter-related genes were downregulated, whereas K+ transporter genes were both up- and downregulated. These results suggest that restricting intracellular Na+ importing while maintaining balanced K+ homeostasis is an adaptive strategy for tolerating long-term salt stress. ICP-MS analysis identified the petioles and leaves as Na-hyperaccumulators, with a maximum content of over 80 g kg−1 DW under salt stress. Mapping of the Na-hyperaccumulation trait onto the phylogenetic relationships revealed that water lily plants might have a long evolutionary history from ancient marine plants, or may have undergone historical ecological events from salt to fresh water. Ammonium transporter genes involved in nitrogen metabolism were downregulated, whereas NO3−-related transporters were upregulated in both the leaves and petioles, suggesting a selective bias toward NO3− uptake under salt stress. The morphological changes we observed may be due to the reduced expression of genes related to auxin signal transduction. In conclusion, the floating leaves and submerged petioles of the water lily use a series of adaptive strategies to survive salt stress. These include the absorption and transport of ions and nutrients from the surrounding environments, and the ability to hyperaccumulate Na+. These adaptations may serve as the physiological basis for salt tolerance in water lily plants.

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“…Subcritical low temperature extraction has become a mature technology in China, and it has been used on a variety of materials, such as wheat germ, walnuts, grape seeds, pepper, marigold seeds, soybeans, cocoa cake, fungus spores, and roses (Ashraf-Khorassani & Taylor, 2004;Liu, Chen, et al, 2014;Zhang, Gu, Wang, Kong, & Qin, 2017;Zhao et al, 2019). Furthermore, subcritical low temperature extraction-based processes have been applied in a wide variety of contexts, including for the production of seed oils, essential oils, Chinese herbal medicine oils, natural spices, and forestry products, and for the removal of pesticide residues (Illés, Daood, Biacs, Gnayfeed, & Mészáros, 1999;Petrovic, Lepojevic, Sovilj, Adamovic, & Tesevic, 2007;Xu, Han, Zhou, Wu, & Ding, 2016).…”

Section: Introductionmentioning

confidence: 99%

Subcritical low temperature extraction technology and its application in extracting seed oils

Wang

Yan

Liu

et al. 2021

J Food Process Engineering

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Seed oils are of increasing interest to research and industry because they are a renewable, relatively inexpensive resource, they have valuable mechanical and chemical properties, and they have considerable nutritional benefits. Besides the traditional oil extraction methods, subcritical low temperature extraction as an innovative, clean, and environmentally friendly technology has attracted considerable attention recently. This new technique has many excellent properties, such as low temperature and pressure, short time, better selectivity, environmental compatibility, process simplicity, and the elimination of residual solvent. This review describes the technique of

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Ultrasound-Enhanced Subcritical Fluid Extraction of Essential Oil from Nymphaea alba var and Its Antioxidant Activity

Cited by 12 publications

References 0 publications

Transcriptome Analysis Revealing the Interaction of Abscisic Acid and Cell Wall Modifications during the Flower Opening and Closing Process of Nymphaea lotus

Transcriptome Analysis Revealing the Interaction of Abscisic Acid and Cell Wall Modifications during the Flower Opening and Closing Process of Nymphaea lotus

Insights into Adaptive Regulation of the Leaf-Petiole System: Strategies for Survival of Water Lily Plants under Salt Stress

Subcritical low temperature extraction technology and its application in extracting seed oils

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