EP3405032A1 - Extrait de plante agissant comme agent antifongique, et procede de preparation - Google Patents
Extrait de plante agissant comme agent antifongique, et procede de preparationInfo
- Publication number
- EP3405032A1 EP3405032A1 EP17705162.0A EP17705162A EP3405032A1 EP 3405032 A1 EP3405032 A1 EP 3405032A1 EP 17705162 A EP17705162 A EP 17705162A EP 3405032 A1 EP3405032 A1 EP 3405032A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- extract
- plant extract
- dittrichia
- esi
- diene
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 229940121375 antifungal agent Drugs 0.000 title claims abstract description 17
- 239000003429 antifungal agent Substances 0.000 title claims abstract description 12
- 239000000419 plant extract Substances 0.000 title claims description 20
- 238000002360 preparation method Methods 0.000 title description 6
- 239000000284 extract Substances 0.000 claims abstract description 82
- 241000196324 Embryophyta Species 0.000 claims abstract description 33
- 150000001875 compounds Chemical class 0.000 claims abstract description 23
- 239000000203 mixture Substances 0.000 claims abstract description 21
- -1 hydrocarbon alkanes Chemical class 0.000 claims abstract description 17
- 239000002904 solvent Substances 0.000 claims abstract description 17
- 238000002803 maceration Methods 0.000 claims abstract description 14
- 241000566716 Dittrichia Species 0.000 claims abstract description 9
- 238000001035 drying Methods 0.000 claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 claims abstract description 5
- 241000208838 Asteraceae Species 0.000 claims abstract description 4
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 4
- 150000001298 alcohols Chemical class 0.000 claims abstract description 4
- 150000002148 esters Chemical class 0.000 claims abstract description 4
- 150000002170 ethers Chemical class 0.000 claims abstract description 4
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 4
- 150000002576 ketones Chemical class 0.000 claims abstract description 4
- 239000006184 cosolvent Substances 0.000 claims abstract description 3
- 238000000194 supercritical-fluid extraction Methods 0.000 claims abstract description 3
- 241000566713 Dittrichia viscosa Species 0.000 claims description 50
- 235000007586 terpenes Nutrition 0.000 claims description 19
- 238000011282 treatment Methods 0.000 claims description 17
- 238000001228 spectrum Methods 0.000 claims description 14
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 12
- 238000001819 mass spectrum Methods 0.000 claims description 12
- 238000000119 electrospray ionisation mass spectrum Methods 0.000 claims description 9
- 230000003032 phytopathogenic effect Effects 0.000 claims description 4
- 230000008569 process Effects 0.000 claims description 4
- 241000235349 Ascomycota Species 0.000 claims description 3
- 241000221198 Basidiomycota Species 0.000 claims description 3
- 241000233654 Oomycetes Species 0.000 claims description 3
- 230000003105 anti-germinative effect Effects 0.000 claims description 3
- 239000000839 emulsion Substances 0.000 claims description 3
- 239000008187 granular material Substances 0.000 claims description 3
- 239000007788 liquid Substances 0.000 claims description 3
- 230000003449 preventive effect Effects 0.000 claims description 3
- 238000009362 arboriculture Methods 0.000 claims description 2
- 239000004495 emulsifiable concentrate Substances 0.000 claims description 2
- 238000010413 gardening Methods 0.000 claims description 2
- 238000003306 harvesting Methods 0.000 claims description 2
- 238000009369 viticulture Methods 0.000 claims description 2
- UTXMCYDEIZPGME-UHFFFAOYSA-N beta-Isocostic acid Natural products C1CC(C(=C)C(O)=O)CC2C(C)=CCCC21C UTXMCYDEIZPGME-UHFFFAOYSA-N 0.000 abstract description 21
- UTXMCYDEIZPGME-VNHYZAJKSA-N 2-[(2r,4ar,8ar)-4a,8-dimethyl-2,3,4,5,6,8a-hexahydro-1h-naphthalen-2-yl]prop-2-enoic acid Chemical compound C1C[C@@H](C(=C)C(O)=O)C[C@H]2C(C)=CCC[C@@]21C UTXMCYDEIZPGME-VNHYZAJKSA-N 0.000 abstract description 15
- 230000002879 macerating effect Effects 0.000 abstract 1
- 238000000605 extraction Methods 0.000 description 16
- 230000000843 anti-fungal effect Effects 0.000 description 15
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- UJQGVDNQDFTTLZ-VNHYZAJKSA-N 2-[(2r,4ar,8as)-4a-methyl-8-methylidene-1,2,3,4,5,6,7,8a-octahydronaphthalen-2-yl]prop-2-enoic acid Chemical compound C1CCC(=C)[C@@H]2C[C@H](C(=C)C(O)=O)CC[C@]21C UJQGVDNQDFTTLZ-VNHYZAJKSA-N 0.000 description 8
- 230000000694 effects Effects 0.000 description 8
- SGZOYHLQNUSAIL-UHFFFAOYSA-N Ioscostussaeure Natural products C1C(C(=C)C(O)=O)CCC2(C)CCCC(C)=C21 SGZOYHLQNUSAIL-UHFFFAOYSA-N 0.000 description 7
- 241001281803 Plasmopara viticola Species 0.000 description 7
- 206010039509 Scab Diseases 0.000 description 7
- 230000000855 fungicidal effect Effects 0.000 description 7
- 239000000047 product Substances 0.000 description 7
- 241000221785 Erysiphales Species 0.000 description 6
- 241000228452 Venturia inaequalis Species 0.000 description 5
- 239000002253 acid Substances 0.000 description 5
- 239000002671 adjuvant Substances 0.000 description 5
- 201000010099 disease Diseases 0.000 description 5
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 5
- 238000000338 in vitro Methods 0.000 description 5
- 150000003505 terpenes Chemical class 0.000 description 5
- QXRKIZKJLNNMNC-UHFFFAOYSA-N 11,13-Dihydrocostic acid Natural products CC(C1CCC2(C)CCCC(=C)C2C1)C(=O)O QXRKIZKJLNNMNC-UHFFFAOYSA-N 0.000 description 4
- SGZOYHLQNUSAIL-IUODEOHRSA-N 2-[(2r,4ar)-4a,8-dimethyl-2,3,4,5,6,7-hexahydro-1h-naphthalen-2-yl]prop-2-enoic acid Chemical compound C1[C@H](C(=C)C(O)=O)CC[C@@]2(C)CCCC(C)=C21 SGZOYHLQNUSAIL-IUODEOHRSA-N 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- 241001518836 Monilinia fructigena Species 0.000 description 4
- 235000006029 Prunus persica var nucipersica Nutrition 0.000 description 4
- 244000017714 Prunus persica var. nucipersica Species 0.000 description 4
- UJQGVDNQDFTTLZ-UHFFFAOYSA-N beta-costic acid Natural products C1CCC(=C)C2CC(C(=C)C(O)=O)CCC21C UJQGVDNQDFTTLZ-UHFFFAOYSA-N 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 238000003818 flash chromatography Methods 0.000 description 4
- 239000000417 fungicide Substances 0.000 description 4
- 238000001727 in vivo Methods 0.000 description 4
- 230000002401 inhibitory effect Effects 0.000 description 4
- SGZOYHLQNUSAIL-DOMZBBRYSA-N (+/-)-Isocostic acid Natural products O=C(O)C(=C)[C@H]1CC2=C(C)CCC[C@@]2(C)CC1 SGZOYHLQNUSAIL-DOMZBBRYSA-N 0.000 description 3
- 241001518729 Monilinia Species 0.000 description 3
- 240000006365 Vitis vinifera Species 0.000 description 3
- 235000014787 Vitis vinifera Nutrition 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 238000005194 fractionation Methods 0.000 description 3
- 230000005764 inhibitory process Effects 0.000 description 3
- 230000002829 reductive effect Effects 0.000 description 3
- 229930004725 sesquiterpene Natural products 0.000 description 3
- 150000004354 sesquiterpene derivatives Chemical class 0.000 description 3
- 229920001817 Agar Polymers 0.000 description 2
- 241000123650 Botrytis cinerea Species 0.000 description 2
- JJLJMEJHUUYSSY-UHFFFAOYSA-L Copper hydroxide Chemical compound [OH-].[OH-].[Cu+2] JJLJMEJHUUYSSY-UHFFFAOYSA-L 0.000 description 2
- 239000005750 Copper hydroxide Substances 0.000 description 2
- 241000510928 Erysiphe necator Species 0.000 description 2
- 241001569439 Monilinia sp. Species 0.000 description 2
- 241000233679 Peronosporaceae Species 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000008272 agar Substances 0.000 description 2
- 230000000845 anti-microbial effect Effects 0.000 description 2
- 229910001956 copper hydroxide Inorganic materials 0.000 description 2
- 239000012156 elution solvent Substances 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000011534 incubation Methods 0.000 description 2
- 229910052500 inorganic mineral Inorganic materials 0.000 description 2
- 238000005040 ion trap Methods 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 239000011707 mineral Substances 0.000 description 2
- 235000010755 mineral Nutrition 0.000 description 2
- 229930014626 natural product Natural products 0.000 description 2
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 2
- 239000000575 pesticide Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000028070 sporulation Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 2
- PXMNMQRDXWABCY-UHFFFAOYSA-N 1-(4-chlorophenyl)-4,4-dimethyl-3-(1H-1,2,4-triazol-1-ylmethyl)pentan-3-ol Chemical compound C1=NC=NN1CC(O)(C(C)(C)C)CCC1=CC=C(Cl)C=C1 PXMNMQRDXWABCY-UHFFFAOYSA-N 0.000 description 1
- XILIYVSXLSWUAI-UHFFFAOYSA-N 2-(diethylamino)ethyl n'-phenylcarbamimidothioate;dihydrobromide Chemical compound Br.Br.CCN(CC)CCSC(N)=NC1=CC=CC=C1 XILIYVSXLSWUAI-UHFFFAOYSA-N 0.000 description 1
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- UHPMCKVQTMMPCG-UHFFFAOYSA-N 5,8-dihydroxy-2-methoxy-6-methyl-7-(2-oxopropyl)naphthalene-1,4-dione Chemical compound CC1=C(CC(C)=O)C(O)=C2C(=O)C(OC)=CC(=O)C2=C1O UHPMCKVQTMMPCG-UHFFFAOYSA-N 0.000 description 1
- 241000919511 Albugo Species 0.000 description 1
- 235000007823 Artemisia sp Nutrition 0.000 description 1
- 244000298939 Artemisia sp Species 0.000 description 1
- 241001480043 Arthrodermataceae Species 0.000 description 1
- 241001480060 Blumeria Species 0.000 description 1
- 241001465180 Botrytis Species 0.000 description 1
- 241000499339 Botrytis allii Species 0.000 description 1
- 241000740945 Botrytis sp. Species 0.000 description 1
- 241000233684 Bremia Species 0.000 description 1
- 241000132529 Cheirolophus Species 0.000 description 1
- 241000574532 Cratystylis Species 0.000 description 1
- 241001557051 Cronartium sp. Species 0.000 description 1
- 241000221755 Cryphonectria Species 0.000 description 1
- 241001142049 Dittrichia graveolens Species 0.000 description 1
- 241000925440 Erysiphe sp. Species 0.000 description 1
- 241000223218 Fusarium Species 0.000 description 1
- 241001149959 Fusarium sp. Species 0.000 description 1
- 241000872598 Fusicladium sp. Species 0.000 description 1
- 230000005526 G1 to G0 transition Effects 0.000 description 1
- 241001334844 Gibberella sp. Species 0.000 description 1
- 241000804008 Gymnosporangium sp. Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical class [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241000132446 Inula Species 0.000 description 1
- 241000218195 Lauraceae Species 0.000 description 1
- 239000005802 Mancozeb Substances 0.000 description 1
- 241001409806 Melampsorella Species 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 241000862466 Monilinia laxa Species 0.000 description 1
- 208000031888 Mycoses Diseases 0.000 description 1
- 241001557906 Mycosphaerella sp. Species 0.000 description 1
- GXCLVBGFBYZDAG-UHFFFAOYSA-N N-[2-(1H-indol-3-yl)ethyl]-N-methylprop-2-en-1-amine Chemical compound CN(CCC1=CNC2=C1C=CC=C2)CC=C GXCLVBGFBYZDAG-UHFFFAOYSA-N 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 241000909578 Nectandra Species 0.000 description 1
- 241001335047 Neonectria sp. Species 0.000 description 1
- 241000979503 Ophryosporus Species 0.000 description 1
- 241000228143 Penicillium Species 0.000 description 1
- 241001123663 Penicillium expansum Species 0.000 description 1
- 241000169463 Peronospora sp. Species 0.000 description 1
- 241001503951 Phoma Species 0.000 description 1
- 241001207509 Phoma sp. Species 0.000 description 1
- 241000031556 Phytophthora sp. Species 0.000 description 1
- 241000233626 Plasmopara Species 0.000 description 1
- 241000116261 Podosphaera sp. Species 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 241000592823 Puccinia sp. Species 0.000 description 1
- 235000019484 Rapeseed oil Nutrition 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 241001533598 Septoria Species 0.000 description 1
- 241001207471 Septoria sp. Species 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 241000827176 Synchytrium Species 0.000 description 1
- 239000005839 Tebuconazole Substances 0.000 description 1
- 241001203501 Venturia sp. (in: Fungi) Species 0.000 description 1
- 235000009754 Vitis X bourquina Nutrition 0.000 description 1
- 235000012333 Vitis X labruscana Nutrition 0.000 description 1
- 241000607479 Yersinia pestis Species 0.000 description 1
- 239000013543 active substance Substances 0.000 description 1
- 230000001476 alcoholic effect Effects 0.000 description 1
- 150000001412 amines Chemical class 0.000 description 1
- 230000000507 anthelmentic effect Effects 0.000 description 1
- 230000000844 anti-bacterial effect Effects 0.000 description 1
- 239000012871 anti-fungal composition Substances 0.000 description 1
- 230000002514 anti-leishmanial effect Effects 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000000853 biopesticidal effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 150000001793 charged compounds Chemical class 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 150000001879 copper Chemical class 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- 238000009109 curative therapy Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000037304 dermatophytes Effects 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000469 ethanolic extract Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229930003935 flavonoid Natural products 0.000 description 1
- 150000002215 flavonoids Chemical class 0.000 description 1
- 235000017173 flavonoids Nutrition 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 230000002538 fungal effect Effects 0.000 description 1
- 244000053095 fungal pathogen Species 0.000 description 1
- 244000000004 fungal plant pathogen Species 0.000 description 1
- 230000001408 fungistatic effect Effects 0.000 description 1
- 230000009036 growth inhibition Effects 0.000 description 1
- 125000001475 halogen functional group Chemical group 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000003919 heteronuclear multiple bond coherence Methods 0.000 description 1
- 238000005570 heteronuclear single quantum coherence Methods 0.000 description 1
- 238000004128 high performance liquid chromatography Methods 0.000 description 1
- 238000004896 high resolution mass spectrometry Methods 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000002714 ichtyotoxic effect Effects 0.000 description 1
- 238000011081 inoculation Methods 0.000 description 1
- 239000002054 inoculum Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 238000004949 mass spectrometry Methods 0.000 description 1
- 239000002207 metabolite Substances 0.000 description 1
- 230000000813 microbial effect Effects 0.000 description 1
- 244000005700 microbiome Species 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 238000000238 one-dimensional nuclear magnetic resonance spectroscopy Methods 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000001717 pathogenic effect Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 230000002085 persistent effect Effects 0.000 description 1
- 231100000208 phytotoxic Toxicity 0.000 description 1
- 230000000885 phytotoxic effect Effects 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920005862 polyol Polymers 0.000 description 1
- 150000003077 polyols Chemical class 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000013641 positive control Substances 0.000 description 1
- 229910000028 potassium bicarbonate Inorganic materials 0.000 description 1
- 235000015497 potassium bicarbonate Nutrition 0.000 description 1
- 239000011736 potassium bicarbonate Substances 0.000 description 1
- TYJJADVDDVDEDZ-UHFFFAOYSA-M potassium hydrogencarbonate Chemical compound [K+].OC([O-])=O TYJJADVDDVDEDZ-UHFFFAOYSA-M 0.000 description 1
- 238000004237 preparative chromatography Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 125000005581 pyrene group Chemical group 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000003463 sulfur Chemical class 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 208000024891 symptom Diseases 0.000 description 1
- 230000008685 targeting Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 150000003626 triacylglycerols Chemical class 0.000 description 1
- 238000000825 ultraviolet detection Methods 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N65/00—Biocides, pest repellants or attractants, or plant growth regulators containing material from algae, lichens, bryophyta, multi-cellular fungi or plants, or extracts thereof
- A01N65/08—Magnoliopsida [dicotyledons]
- A01N65/12—Asteraceae or Compositae [Aster or Sunflower family], e.g. daisy, pyrethrum, artichoke, lettuce, sunflower, wormwood or tarragon
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01N—PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
- A01N37/00—Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
- A01N37/06—Unsaturated carboxylic acids or thio analogues thereof; Derivatives thereof
Definitions
- the invention relates to a plant extract acting as antifungal agent against any type of phytopathogens.
- the invention also relates to the process for producing such an extract, and a fungicidal composition for use in phytoprotection.
- the present invention relates to the technical field of antifungals for use in protecting crops.
- Fungicides are known from synthetic molecules such as mancozeb or tebuconazole, active against apple scab and mildew of the vine.
- fungicidal products of natural origin for example of mineral origin. These include copper derivatives (copper hydroxide, copper sulphate), sulfur derivatives (micronized sulfur) and potassium bicarbonate. But these products have a significant toxicity and also have a high remanence in the environment. This is particularly the case of copper that is not degraded.
- the invention thus provides a fungicide of natural origin with sufficient efficacy on crops to be either a substitute for fungicides currently used, or have sufficient efficacy against diseases currently lacking effective treatment.
- the invention relates essentially to a plant extract of the family Asteraceae, for example of the genus Dittrichia, which is essentially characterized in that it comprises at least the 12-carboxyeudesma-3 compound, 1 1 (13) -diene and / or one of its dehydrogenated derivatives acting as antifungal agent, and in that it is obtained according to a process comprising at least the steps of drying fresh plants, maceration of the dried plants in a solvent chosen from water, alcohols, ketones, esters, ethers, chlorinated solvents, hydrocarbon alkanes and any mixture of two or more of the solvents mentioned or by supercritical fluid extraction combined or not with a co-solvent and drying the mixture, for which steps the operating temperature is lower.
- a solvent chosen from water, alcohols, ketones, esters, ethers, chlorinated solvents, hydrocarbon alkanes and any mixture of two or more of the solvents mentioned or by supercritical fluid extraction combined or not with a co-solvent and drying
- the extract of the invention may also include the following optional characteristics considered in isolation or according to all possible technical combinations: the maceration step is carried out at a temperature below 40 ° C. and at a pH of between 5 and 8; the solvent used during the maceration step is ethanol,
- the extract furthermore comprises a terpene compound of mass 498 and of empirical formula C30H42O6 wherein the terpene compound of mass 498 and of empirical formula C30H42O6 has an ESI + mass spectrum according to FIG. 5, an ESI-mass spectrum according to FIG. 6, a spectrum of ms2 at ESI + according to FIG. 7 and a spectrum of ms2 at ESI- according to FIG. 8, the plant of the genus Dittrichia is Dittrichia viscosa.
- the invention also relates to the use of the plant extract previously defined as antifungal agent against phytopathogenic plant organisms.
- phytopathogenic organisms are those among Basidiomycetes, Oomycetes, Ascomycetes and Deuteromycetes.
- the plant extract is used as antifungal agent in pre or post-harvest treatment on agricultural areas, for example as a preventive treatment, anti-germinative or curative on seeds, in viticulture, arboriculture or market gardening, or in treatment on non-agricultural areas.
- the invention finally relates to a biofungicidal composition which is essentially characterized in that it comprises the plant extract as defined above.
- the biofungicidal composition is in the form of dispersible granules, liquids, aqueous emulsions or emulsifiable concentrates.
- FIG. 1 represents the ESI + mass spectrum of the major compound of a first active subfraction of a Dittrichia viscosa extract showing the predominant presence of 12-carboxyeudesma-3,11 (13) -diene,
- FIG. 2 represents the ESI mass spectrum of the major compound of the first active subfraction of a Dittrichia viscosa extract showing the predominant presence of 12-carboxyeudesma-3.1 1 (13) -diene;
- FIG. 3 represents the spectrum of ms2 corresponding to the ESI + mass spectrum of FIG. 1 of the major compound of the first active subfraction of a Dittrichia viscosa extract showing the predominant presence of 12-carboxyeudesma-3,11 (13) diene,
- FIG. 4 represents the spectrum of ms2 corresponding to the ESI mass spectrum of FIG. 2 of the major compound of the first active subfraction of a Dittrichia viscosa extract showing the predominant presence of 12-carboxy-3-methoxy-3-carbons. (13) -diene,
- FIG. 5 represents the ESI + mass spectrum of the major component of a second active fraction of a Dittrichia viscosa extract showing the predominant presence of a terpene compound of mass 498 and of empirical formula C30H42O6,
- FIG. 6 represents the ESI mass spectrum of the major component of the second active fraction of an extract of Dittrichia viscosa, showing the majority presence of terpene compound of mass 498 and of crude formula
- FIG. 7 represents the spectrum of ms2 corresponding to the mass spectrum ESI + of FIG. 5 of the major compound of the second active subfraction of a Dittrichia viscosa extract showing the predominant presence of the terpene compound of mass 498 and of formula gross C30H42O6,
- FIG. 8 represents the spectrum of ms2 corresponding to the ESI mass spectrum of FIG. 6 of the major compound of the second active subfraction of a Dittrichia viscosa extract showing the predominant presence of the terpene compound of mass 498 and of crude formula C3oH4206,
- FIG. 8a the ESI + mass spectrum of the major compound of a third active fraction of a Dittrichia viscosa extract showing the predominant presence of a dehydrogenated derivative of 12-carboxyeudesma-3,11 (13) -diene
- FIG. 8b represents the spectrum of ms2 corresponding to the ESI mass spectrum of FIG. 8a of the major compound of the third active subfraction of a Dittrichia viscosa extract showing the predominant presence of the dehydrogenated derivative 12-carboxyeudesma- 3,11 (13) -diene,
- FIG. 9 shows the effectiveness of a Dittrichia viscosa extract and a particularly active first and second fraction of this extract for concentrations of 25 and 50 ppm on the inhibition of mycelial growth
- FIG. 10 shows the distribution of the incidence of monilysis for control nectarines treated with Dittrichia viscosa extract enriched in 12-carboxyeudesma-3,11 (13) -diene, in the form of a didehydrogen derivative and in a terpene mass compound. 498 and of empirical formula C30H42O6,
- FIG. 11 shows the incidence and mean severity observed on untreated grape mildew (Plasmopara viticola), treated with copper, and treated with Dittrichia viscosa extract enriched in 12-carboxyeudesma-3.1 1 (13) -diene, as a dihydrogen derivative and terpene compound of mass 498 and of empirical formula C30H42O6,
- FIG. 12 shows the incidence and mean severity observed on powdery mildew (Erysiphe necator) without treatment, treated with copper, and treated with Dittrichia viscosa extract enriched in 12-carboxyeudesma-3,11 (13) -diene, the dihydrogenated derivative and terpene compound having a mass of 498 and a crude formula
- FIG. 13 shows the average incidence observed on apple scab without treatment and treated with Dittrichia viscosa extract enriched in 12-carboxyeudesma-3,11 (13) -diene, in didehydrogenated derivative and in terpene mass compound. 498 and of empirical formula C30H42O6,
- FIG. 14 shows the areas of the peaks corresponding respectively to 12-carboxyeudesma-3,11 (13) -diene and to the costic acid present in a Dittrichia viscosa extract obtained according to different operating conditions of temperature and pH, and
- FIG. 15 shows the antifungal index against Monilinia fructigena of an extract of Dittrichia viscosa obtained according to different operating conditions of temperature and pH.
- the extract of the invention and the biofungicidal composition of the invention comprise at least one sesquiterpene acid of the 12-carboxyeudesma-3,11 (13) -diene type, otherwise called eudesma-3,11 acid (13). -diene-12-oic acid or one of its dehydrogenated derivatives.
- the 12-carboxyeudesma 3.1 1 (13) -diene acting as antifungal agent in the extract and the composition of the invention may have a three-dimensional structure having a separate CAS number.
- the use of the term 12-carboxyeudesma 3,11 (13) -diene also includes this three-dimensional structure.
- the use of the term "isocostic acid” widely used in the literature does not refer exclusively to 12-carboxyeudesma 3,11 (13) -diene. Indeed, isocostic acid groups several molecules including 12-carboxyeudesma 3.1 1 (13) -diene.
- the 12-carboxyeudesma-3.1 1 (13) -diene is identified in some Lauraceae of the genus Nectandra sp. and in a number of genera of the family Asteraceae. It has in fact been isolated from organic extracts of plants of the genera Cheirolophus sp. , Cratystylis sp. , Ophryosporus sp. , Artemisia sp. or Dittrichia sp. More recent publications report the phytotoxic, antileishmanial, anthelmintic and ichthyotoxic activity of 12-carboxyeudesma-3,1 1 (13) -diene, isolated from extracts of Dittrichia viscosa or D. graveolens.
- the plant extract of the invention also advantageously comprises a second active compound which is a terpene compound of formula C3oH 206 and mass 498 which has not been known to the inventors, until now. identified or associated with any antimicrobial or antifungal activity in plant extracts.
- the present invention therefore relates in a first aspect, a plant extract, for example Dittrichia viscosa comprising these two molecules, 12-carboxyeudesma-3.1 1 (13) -diene and / or one of its dehydrogenated derivatives, and preferably also a terpene compound of formula C30H42O6 which may be pure or in mixtures, which act as antifungal agent, that is to say active against pathogenic fungi, used for crop protection.
- a plant extract for example Dittrichia viscosa comprising these two molecules, 12-carboxyeudesma-3.1 1 (13) -diene and / or one of its dehydrogenated derivatives, and preferably also a terpene compound of formula C30H42O6 which may be pure or in mixtures, which act as antifungal agent, that is to say active against pathogenic fungi, used for crop protection.
- an extract of the plant of the genus Dittrichia may be used for this purpose.
- the extract of the invention will be obtained according to a second aspect of the invention according to a maceration extraction process which will be described later, but which must necessarily be free of any operation carrying the plant at a higher temperature. at 60 ° C.
- pH conditions of the maceration step must be respected. Without following these operating conditions, the extract may contain 12-carboxyeudesma-3.1 1 (13) -diene and / or dehydrogenated derivatives, without having sufficient fungicidal character.
- the extract comprises 12-carboxyeudesma-3.1 1 (13) -diene and / or one of its dehydrogenated derivatives, but also that the process of extraction respects the operating conditions and in particular that all operations are performed at temperatures below 60 ° C.
- the plants used to make the extract may be whole or consist of parts of plants such as roots, stems, leaves, fruits, flowers or any mixture of at least two of these parts, .
- the parts of the extracted plants may be in fresh or dry form, whole or ground.
- the extracts used can in particular be obtained by extraction with a solvent chosen from water, alcohols, ketones, esters, ethers, polyols, chlorinated solvents or any mixture of two or more of these solvents.
- the parts of the selected plant are harvested and then crushed in fresh or dry form. They are left to macerate at a temperature below 60 ° C and at a pH strictly greater than 1 and strictly less than 10, preferably with stirring or ultrasound for 15 minutes to 1 month, preferably for a few hours.
- a mass ratio ground mill on solvent of between 1/1 and 1/10.
- At this extraction step may be added purification, fractionation, filtration, concentration and / or drying steps.
- the desired antifungal activity may be of a fungistatic or fungicidal nature.
- the preparation can be applied as an anti-germinative, preventive or curative treatment on all types of plant pathogenic fungi including in particular those of the family Ascomycetes, Basidiomycetes, Deuteromycetes and Oomycetes.
- rust agents Albugo sp., Puccinia sp., Melapsora sp., Melampsorella sp., Gymnosporangium sp., Cronartium sp.
- mildew Powdery mildews (Podosphaera sp., Erysiphe sp., Blumeria sp), cankers (Neonectria sp., Cryphonectria sp.), galls (Synchytrium) sp.) and scab (Venturia sp., Fusicladium sp.).
- the extracts comprising 12-carboxyeudesma-3.1 1 (13) -diene and / or one of its dehydrogenated derivatives, and the terpenic compound of formula C30H42O6, may be incorporated into a biofungicidal composition that may occur in the form of more or less concentrated liquids, dispersible granules, emulsion or any other type of preparation known to those skilled in the art.
- this composition may be added various adjuvants or formulants allowing for example better penetration and stabilization of the extract.
- paraffins and derivatives thereof hydrocarbon polymers, vegetable oils such as rapeseed oil, mineral oils, resins, triglyceride derivatives and oligomers may be mentioned as examples.
- the 12-carboxyeudesma-3.1 1 (13) -diene, one of its dehydrogenated derivatives, and the terpenic compound of formula C30H42O6 are derived from a plant extract of Dittrichia viscosa also referred to as viscous Inula. These two molecules may also be derived from a plant extract of another plant species of the genus Dittrichia. In the following example, these two active molecules have been identified in the Dittrichia viscosa extract by means of a bio-guided fractionation.
- Dittrichia viscosa The aerial parts of Dittrichia viscosa were harvested in June 2012 in various fallow and fallow areas of Perpignan, France, in the eastern Pyrenees. These aerial parts were dried at room temperature.
- the extraction is carried out by maceration of 100g of previously dried plants of Dittrichia viscosa in 3 x 1 L of ethanol (in a ratio of 1 g of plant per 10 ml of ethanol), optionally assisted with ultrasound to reduce the extraction time and thus increase the yield. After 3 hours of maceration, the mixture of plant and ethanol is filtered, and the filter permeate is dried by evaporation at a temperature between 35 and 40 ° C.
- the filtered residue is then lyophilized, frozen and then subjected to an evaporation operation in order to remove traces of water.
- An extract (dry residue of 13g) of Dittrichia viscosa is obtained which is in the form of a viscous green wax at room temperature.
- the HPLC analyzes are performed on an Agilent Technologies ® equipment equipped with a diode array detector and connected to a MAT LCQ mass spectrometer connected to an ion trap.
- a kinetex ® C18 grafted column is used. 10 ⁇ l of sample are injected into the column with UV detection between 200 and 600 nm, targeting particularly the wavelengths 210, 254 and 280 nm.
- the eluting solvent is a gradient of methanol in water containing 0.1% formic acid.
- the families of major compounds found in the extract are flavonoids aglycones and terpenes, including sesquiterpenes. An identification of the majority compounds is carried out.
- the extract is fractionated on chromatographic flash chromatography systems and reversed-phase semi-preparative chromatography using stationary phase of the grafted silica C18.
- the alcoholic macerate of the aerial parts of Dittrichia viscosa is fractionated by flash chromatography in reverse phase with an elution solvent consisting of a gradient of methanol in water. This sharing makes it possible to recover two fractions.
- the first fraction 1 and the second fraction 2 are tested in vitro on strains of Monilinia laxa for two concentrations of 25 and 50 ppm respectively and compared to extract 3. It can be seen that Inhibition of the strongest mycelial growth is obtained with the second fraction 2. Similar tests are also conducted in vivo on Plasmopara viticola and Venturia inaequalis and the results also show a greater activity of the second fraction 2.
- This second most active fraction 2 is subfractionated on flash chromatography with an elution solvent consisting of a gradient of methanol in water. This sharing allows to recover 8 sub fractions. A first sub-fraction more active F2.1 is then sub-fractionated on flash chromatography in 6 subfractions.
- FIGS. 1 and 3 respectively show the ESI + mass spectra and the corresponding ms2 spectrum of the active subfraction F.2.1.4.
- FIGS. 2 and 4 respectively show the ESI- mass spectra and the corresponding ms2 spectrum of this active fraction F.2.1.4.
- FIGS. 5 and 7 respectively show the ESI + mass spectra and the corresponding ms2 spectrum of the active fraction F.2.1.5.
- FIGS. 6 and 8 respectively show the ESI- mass spectra and the corresponding ms2 spectrum of this active fraction F.2.1 .5.
- FIGS. 8a and 8b respectively show the ESI (+) mass spectra and the corresponding ms2 spectrum of the active fraction F 2.1 .3.
- the major component of this fraction has a mass of 232 uma with a molecular ion in ESI (+) of 233 m / z.
- Its fractionation in ESI (+) causes the formation of two ions, at 215 and 187 m / z, explainable by the loss of an OH group and a COOH group. These two losses are characteristic of the carboxylic groups.
- the majority compound of the subfraction F 2.1.3.
- 12-carboxyeudesma-3.1 1 (13) -diene has been identified as a sesquiterpene acid of the di-dehydrocostic type (which may be otherwise referred to as the dehydrogenated derivative of 12-carboxyeudesma-3.1 1 (13) -diene) such as, for example, eudesma-2,4-acid (15) , 11 (13) -triene-12-oic. It has thus been identified that 12-carboxyeudesma-3.1 1 (13) -diene and its dehydrogenated derivatives, as well as the compound of formula C30H42O6 and mass 498, are active antifungal compounds of an extract. of Dittrichia viscosa.
- An extract of Dittrichia viscosa is prepared by maceration extraction as previously described.
- Botrytis cinerea Botrytis allii
- Monilinia taxa Monilinia fructigena
- the tests are carried out in 12-well microplates, with 3 repetitions per modality.
- a 6 mm diameter mycelial disc from a 10-day malt agar medium culture was deposited on 2 ml of agar medium containing 1% ethanolic extract. After incubation for 1 to 3 days at 23 ° C., the reading of the size of the mycelial halo makes it possible to determine the growth inhibition rate with respect to the control.
- Table 2 shows the median inhibitory concentrations (IC50) obtained on the different strains in the in vitro tests of Dittrichia viscosa extract on mycelial growth.
- the extract is active on all the strains tested, and more particularly on the strains of Botrytis sp. and Monilinia sp.
- Tests were conducted in vivo on mini-vine plants (Plasmopara viticola) and apple (Venturia inaequalis) according to standardized protocols. All experiments were conducted with six replicates per treatment using random assignment of treatments in each block. The plants were treated with Dittrichia viscosa extract on all leaves using an air compressor equipped with an automatic air assisted spray booster (approximately 20 ml per plant; the nozzle). The plants were then allowed to dry at room temperature before being inoculated with the spore suspensions.
- the inoculum was prepared from spores of P. viticola and V. inaequalis recovered from previously infected plants.
- the inoculated plants were then kept for 24 hours in the dark at 20-21 ° C and in the presence of a relative humidity of 80-99%, then 6 days at 18-25 ° C in the presence of a relative humidity of 60-80% and a photoperiod 16 hours day / 8 hours night.
- the plants were then incubated overnight in the dark at 20 ° C and 80-99% relative humidity to promote sporulation.
- Table 3 below includes the efficiencies of Dittrichia viscosa extract on the two strains tested.
- the extract has a very good activity in vivo on the two targets tested, with an inhibition comparable to that of the positive control for doses of 1000 and 2500 ppm.
- FIG. 13 shows the average incidence observed on apple scab treated with Dittrichia viscosa extract 12 in comparison with an untreated control. There is also a substantial reduction in the incidence when the treatment is carried out. is carried out with the substance of the invention 12.
- Antifungal activity tests were also conducted according to different operating conditions for obtaining the Dittrichia viscosa extract.
- the extraction is carried out as previously described by varying the temperature between 20 ° C (room temperature TA) and 80 ° C, and the extraction pH between 1 and 10.
- the various extracts are analyzed in LC -DAD-MS on a Thermo Scientific® system equipped with a diode array detector and connected to a Fleet LCQ mass spectrometer.
- the ionization mode used is electrospray (ESI) in positive and negative mode and the analyzer is of the ion trap type.
- FIG. 15 shows the antifungal index against Monilinia fructigena extracts obtained according to the different extraction operating conditions presented with reference to FIG. 14, except for the extract obtained by a 80 ° extraction. vs. While the extracts obtained at pH 10 have a content of 12-carboxyeudesma-3.1 1 (13) -diene only substantially lower than that obtained at pH 5 (FIG. 14), the antifungal activity of the extract obtained by extraction at room temperature and pH 5 is substantially superior to the antifungal activity of all other extracts. If it has been demonstrated that 12-carboxyeudesma-3,11 (13) -diene and its dehydrogenated derivatives have a strong antifungal activity (see Table 1 in particular), the results presented in FIGS.
- the maceration extraction temperature for obtaining the Dittrichia viscosa extract must be less than 60 ° C. and the pH is at 1 ⁇ pH ⁇ 10.
- the temperature is below 40 ° C. and the pH is between 5 and 8.
- the temperature conditions below 60 ° C. extend to all the operations of the process for preparing the extract, including the preliminary drying of fresh plants and the drying of the macerated mixture.
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Abstract
Description
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FR1600099A FR3046907B1 (fr) | 2016-01-21 | 2016-01-21 | Agent antifongique, procede et composition |
PCT/FR2017/000014 WO2017125656A1 (fr) | 2016-01-21 | 2017-01-20 | Extrait de plante agissant comme agent antifongique, et procede de preparation |
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WO2024144669A1 (fr) * | 2022-12-30 | 2024-07-04 | Dokuz Eylül Üni̇versi̇tesi̇ Rektörlüğü | Procédé d'élimination de champignons cryphonectria parasitica avec un extrait aqueux de la plante inula viscosa l. |
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US5853727A (en) * | 1996-07-26 | 1998-12-29 | Agrogne Ltd. | Preparation and use of inula extracts as a fungicide for the control of plant diseases |
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