Isolation of Bioactive Compounds from Sunflower Leaves (<i>Helianthus annuus</i>L.) Extracted with Supercritical Carbon Dioxide

Marsni, Zouhir El; Torres, Ascensión; Varela, Rosa M.; Molinillo, José M. G.; Casas, Lourdes; Mantell, Casimiro; Ossa, E.J. Martı́nez de la; Macı́as, Francisco A.

doi:10.1021/acs.jafc.5b02261

Cited by 36 publications

(37 citation statements)

References 48 publications

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“…Furthermore, heliannuol M, heliannone A, helivypolides K and L, and helieudesmanolide B were also isolated for the first time with CO 2 in a supercritical fluid extraction. Heliannuol A was the most active against tomato, with activity similar to that of commercial herbicides …”

Section: Chemistrymentioning

confidence: 84%

“…Heliannuol A was the most active against tomato, with activity similar to that of commercial herbicides. 111,112 Despite sesquiterpenes showing promising application as herbicides, industrial-scale applications are still not possible, due to the cost of obtaining them in large quantities, either through plant extraction or organic synthesis.…”

Section: Sesquiterpenesmentioning

confidence: 99%

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Recent advances in allelopathy for weed control: from knowledge to applications

Macías

Mejías

Molinillo

2019

Pest Management Science

183

131

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Allelopathy is the biological phenomenon of chemical interactions between living organisms in the ecosystem, and must be taken into account in addressing pest and weed problems in future sustainable agriculture. Allelopathy is a multidisciplinary science, but in some cases, aspects of its chemistry are overlooked, despite the need for a deep knowledge of the chemical structural characteristics of allelochemicals to facilitate the design of new herbicides. This review is focused on the most important advances in allelopathy, paying particular attention to the design and development of phenolic compounds, terpenoids and alkaloids as herbicides. The isolation of allelochemicals is mainly addressed, but other aspects such as the analysis and activities of derivatives or analogs are also covered. Furthermore, the use of allelopathy in the fight against parasitic plants is included. The past 12 years have been a prolific period for publications on allelopathy. This critical review discusses future research areas in this field and the state of the art is analyzed from the chemist's perspective. © 2019 Society of Chemical Industry

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Section: Chemistrymentioning

confidence: 84%

Section: Sesquiterpenesmentioning

confidence: 99%

Recent advances in allelopathy for weed control: from knowledge to applications

Macías

Mejías

Molinillo

2019

Pest Management Science

183

131

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“…The results showed that sunflower residue incorporation improved soil health and suppressed weeds. This sustainable approach caused a significant reduction in weed density and dry weight of weed species in mung bean (Table 4) owing to presence of phenolic compounds (cholorogenic, caffiec, syringic, vanilic and ferulic acids) and terpinoids (sesquiterpene lactones) with a wide spectrum of biological activities including allelopathy (Anjum and Bajwa, 2005;Marsni et al, 2015). In the case of field crops, sunflower had the highest allelopathic potential (Alsaadawi et al, 2007).…”

Section: Yield Componentsmentioning

confidence: 99%

Sunflower Residue Incorporation Suppresses Weeds, Enhances Soil Properties and Seed Yield of Spring-Planted Mung Bean

et al. 2018

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Continuous and excessive use of herbicides to control various weed biotypes is posing severe threats to soil and human health. Nevertheless, the strategy of using allelopathic crop residues and water extracts for weed control seems to be a sustainable and friendly option to reduce dependence on synthetic herbicides. In addition to controlling weeds, residues of allelopathic crops positively affected soil health. A two-year field study was carried out to examine the impact of sunflower residues on soil properties, weed dynamics and productivity of mung bean. The study was comprised of five treatments viz., control, sunflower water extracts at 10 and 20 L ha-1, and sunflower residues incorporation at 4 and 6 ton ha-1. Results indicated that application of sunflower water extracts reduced weed density by 5-26% and weed dry weight by 9-31%, while sunflower residue incorporation caused 44-57% reduction in weed density and 58-70% reduction in weed dry weight compared with the control. At mung bean harvest, total nitrogen and organic matter in soil were increased by 86% and 74%, respectively, with the incorporation of sunflower residues at 6 ton ha-1 as compared with the control. In case of soil enzymes, alkaline phosphatase and dehydrogenase were recorded at 186 mg NP g-1 soil h-1 and 38 mg TPF g-1 soil h-1, respectively, when sunflower residue was incorporated at 6 ton ha-1. In conclusion, sunflower residue incorporation at 6 ton ha-1 improved soil health, suppressed weeds and resulted in better seed yield (36%) and profitability (339 $ ha-1) of spring-planted mung bean.

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“…The extract of sunflower leaves (Helianthus annuus) led to the isolation of 12 kauranes 137 -148 ( Figure 3). [34] The bioactivity of these compounds was assessed at different concentrations ranging from 0.01 to 1 mM using the wheat coleoptile bioassay. All compounds exhibited significantly inhibitory effects on the coleoptile elongation, except for 147 and 148.…”

Section: Kauranesmentioning

confidence: 99%

Phytotoxic Diterpenoids from Plants and Microorganisms

Wei

et al. 2019

Chemistry & Biodiversity

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Phytotoxic natural products with either unique or various structures are one of the most abundant sources for the discovery of potential allelochemicals, natural herbicides, and plant growth regulators. Phytotoxic diterpenoids, a relatively large class of natural products, play an important role in the plant‐plant or plant‐microorganism interactions. This article argues that the phytotoxic diterpenoids isolated from the plants and microorganisms can either inhibit the seed germination and the growth of plant seedlings or lead to some disease symptoms on the tested plant tissues and plant seedlings.

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Isolation of Bioactive Compounds from Sunflower Leaves (Helianthus annuusL.) Extracted with Supercritical Carbon Dioxide

Cited by 36 publications

References 48 publications

Recent advances in allelopathy for weed control: from knowledge to applications

Recent advances in allelopathy for weed control: from knowledge to applications

Sunflower Residue Incorporation Suppresses Weeds, Enhances Soil Properties and Seed Yield of Spring-Planted Mung Bean

Phytotoxic Diterpenoids from Plants and Microorganisms

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