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Bastías-Montes JM, Monterrosa K, Muñoz-Fariña O, García O, Acuña-Nelson SM, Vidal-San Martín C, Quevedo-Leon R, Kubo I, Avila-Acevedo JG, Domiguez-Lopez M, Wei ZJ, Thakur K, Cespedes-Acuña CL. Chemoprotective and antiobesity effects of tocols from seed oil of Maqui-berry: Their antioxidative and digestive enzyme inhibition potential. Food Chem Toxicol 2019; 136:111036. [PMID: 31862287 DOI: 10.1016/j.fct.2019.111036] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 11/19/2019] [Accepted: 12/03/2019] [Indexed: 11/18/2022]
Abstract
Maqui-berry (Aristotelia chilensis) is the emerging Chilean superfruit with high nutraceutical value. Until now, the research on this commodity was focused on the formulations enriched with polyphenols from the pulp. Herein, contents of tocols were compared in the seed oil of Maqui-berry obtained through three different extraction methods followed by determining their antioxidative and enzyme inhibitions in-vitro. Firstly, oilseed was extracted with n-hexane (Soxhlet method), chloroform/methanol/water (Bligh and Dyer method) and pressing (industrial). These samples were used to access their effects against DPPH, HORAC, ORAC, FRAP, Lipid-peroxidation (TBARS), α-amylase, α-glucosidase, and pancreatic lipase. All the isomers of tocopherol and tocotrienol were identified, and β-sitosterol was the only sterol found in higher amounts than other vegetable oils. The Bligh and Dyer method could lead to the highest antioxidative capacity compared to Soxhlet and press methods likely because the latter have a higher amount of tocopherols. Further, seed oil from Maqui berry and their tocols (α, β, γ, δ-tocopherols, tocotrienols, and β-sitosterol) warrant clinical investigation for their antioxidative and antiobesity potential. Taken together, these findings provide relevant and suitable conditions for the industrial processing of Maqui-berry.
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Affiliation(s)
| | - Karen Monterrosa
- Departamento de Ingeniería en Alimentos, Universidad Del Bío-Bío, P.O. Box 447, Chillán, Chile
| | - Ociel Muñoz-Fariña
- Instituto de Ciencia y Tecnología en Alimentos, Universidad Austral de Chile, Valdivia, Chile
| | - Olga García
- Instituto de Ciencia y Tecnología en Alimentos, Universidad Austral de Chile, Valdivia, Chile
| | - Sergio M Acuña-Nelson
- Departamento de Ingeniería en Alimentos, Universidad Del Bío-Bío, P.O. Box 447, Chillán, Chile
| | - Carla Vidal-San Martín
- Departamento de Ingeniería en Alimentos, Universidad Del Bío-Bío, P.O. Box 447, Chillán, Chile
| | - Roberto Quevedo-Leon
- Departamento de Acuicultura y Recursos Agroalimentarios, Universidad de Los Lagos, Osorno, Chile
| | - Isao Kubo
- ESPM Department, UC-Berkeley, CA, 94720-3112, USA
| | | | - Mariana Domiguez-Lopez
- Departamento de Biología Celular y Desarrollo, Laboratorio 305-Sur, Instituto de Fisiología Celular. Universidad Nacional Autónoma de Mexico, Mexico D.F., Mexico
| | - Zhao-Jun Wei
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Kiran Thakur
- School of Food and Biological Engineering, Hefei University of Technology, Hefei, 230009, China
| | - Carlos L Cespedes-Acuña
- Department of Basic Sciences, Research Group in Chemistry and Biotechnology of Bioactive Natural Products, Faculty of Sciences, University of Bio-Bío, Andrés Bello Avenue, Chillan, Chile.
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Cespedes CL, Alarcon J, Aqueveque PM, Lobo T, Becerra J, Balbontin C, Avila JG, Kubo I, Seigler DS. New environmentally-friendly antimicrobials and biocides from Andean and Mexican biodiversity. ENVIRONMENTAL RESEARCH 2015; 142:549-562. [PMID: 26298556 DOI: 10.1016/j.envres.2015.08.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2015] [Revised: 08/06/2015] [Accepted: 08/06/2015] [Indexed: 06/04/2023]
Abstract
Persistent application of pesticides often leads to accumulation in the environment and to the development of resistance in various organisms. These chemicals frequently degrade slowly and have the potential to bio-accumulate across the food chain and in top predators. Cancer and neuronal damage at genomic and proteomic levels have been linked to exposure to pesticides in humans. These negative effects encourage search for new sources of biopesticides that are more "environmentally-friendly" to the environment and human health. Many plant or fungal compounds have significant biological activity associated with the presence of secondary metabolites. Plant biotechnology and new molecular methods offer ways to understand regulation and to improve production of secondary metabolites of interest. Naturally occurring crop protection chemicals offer new approaches for pest management by providing new sources of biologically active natural products with biodegradability, low mammalian toxicity and environmentally-friendly qualities. Latin America is one of the world's most biodiverse regions and provide a previously unsuspected reservoir of new and potentially useful molecules. Phytochemicals from a number of families of plants and fungi from the southern Andes and from Mexico have now been evaluated. Andean basidiomycetes are also a great source of scientifically new compounds that are interesting and potentially useful. Use of biopesticides is an important component of integrated pest management (IPM) and can improve the risks and benefits of production of many crops all over the world.
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Affiliation(s)
- Carlos L Cespedes
- Phytochemical-Ecology, Grupo de Investigación Quimica y Biotecnología de Productos Naturales Bioactivos, Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad del Bio Bio, Chillan, Chile.
| | - Julio Alarcon
- Synthesis/Biotransformation of Natural Products Labs, Grupo de Investigación Quimica y Biotecnología de Productos Naturales Bioactivos, Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad del Bio Bio, Chillan, Chile
| | - Pedro M Aqueveque
- Laboratorio de Microbiología y Micología Aplicada, Departamento de Agroindustrias, Facultad de Ingeniería Agrícola, Universidad de Concepción, Chillan, Chile
| | - Tatiana Lobo
- Escuela de Quimica, Facultad de Ciencias, Universidad Nacional de Colombia sede Medellin, Colombia
| | - Julio Becerra
- Synthesis/Biotransformation of Natural Products Labs, Grupo de Investigación Quimica y Biotecnología de Productos Naturales Bioactivos, Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad del Bio Bio, Chillan, Chile
| | - Cristian Balbontin
- Phytochemical-Ecology, Grupo de Investigación Quimica y Biotecnología de Productos Naturales Bioactivos, Departamento de Ciencias Básicas, Facultad de Ciencias, Universidad del Bio Bio, Chillan, Chile
| | - Jose G Avila
- Laboratorio de Fitoquimica, Unidad UBIPRO, Facultad de Estudios Superiores Iztacala, Universidad Nacional Autonoma de Mexico, Tlalnepantla, Mexico DF, Mexico
| | - Isao Kubo
- ESPM Departmenty, University of California at Berkeley, CA, USA
| | - David S Seigler
- Department of Plant Biology, Herbarium, University of Illinois at Urbana-Champaign, IL, USA
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Domínguez M, Avila JG, Nieto A, Céspedes CL. Anti-inflammatory activity of Penstemon gentianoides and Penstemon campanulatus. PHARMACEUTICAL BIOLOGY 2011; 49:118-124. [PMID: 20979542 DOI: 10.3109/13880209.2010.503708] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
CONTEXT Penstemon gentianoides (Kunth) Poir. and Penstemon campanulatus (Cav.) Willd. (Plantaginaceae) are important medicinal plants in Mexico used by indigenous people for their anti-inflammatory effects and to also reduce rheumatic pains. OBJECTIVE In addition to radical scavenging activity, the anti-inflammatory activity of the extracts, fractions and compounds of these plants were investigated and reported here for the first time. MATERIALS AND METHODS The anti-inflammatory activities of MeOH, CH(2)Cl(2), and ethyl acetate extracts and iridoid, flavonoids, and phenylpropanoids from Penstemon gentianoides and P. campanulatus were studied in the TPA-induced mouse ear edema model. In addition, antioxidant activity against DPPH, crocin and β-carotene were investigated. RESULTS All extracts were tested and a selection of known compounds significantly (p <0.05) inhibited mouse ear edema. The results showed that CH(2)Cl(2) extracts of roots and stems from P. gentianoides and ethyl acetate extracts of leaves from P. gentianoides and P. campanulatus, as well as luteolin, diosmetin, penstemide and verbascoside produced the most positive results. Of all substances tested, the CH(2)Cl(2) extract of P. gentianoides roots was the most powerful inhibitor (ED(50)=0.07 mg/ear), with activity comparable to that of indomethacin. These extracts, compounds purified, as well as known compounds, inhibited oxidation of β-carotene and crocin. DISCUSSION AND CONCLUSION These findings showed that the iridoid monoterpenes, flavonoids and phenylpropanoids present in these plants species may all contribute to the observed anti-inflammatory activity. Additionally, the observed antioxidant activity is correlated with the anti-inflammatory activity of these plants and the phytochemicals derived from them.
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Affiliation(s)
- Mariana Domínguez
- Phytochemical Laboratory, Unidad de Biotecnologia y Prototipos (UBIPRO), FES-Iztacala, UNAM, Mexico City, Mexico
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Duke SO, Blair AC, Dayan FE, Johnson RD, Meepagala KM, Cook D, Bajsa J. Is (-)-catechin a novel weapon of spotted knapweed (Centaurea stoebe)? J Chem Ecol 2009; 4:422-4. [PMID: 19153796 DOI: 10.1007/s10886-008-9587-z] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2008] [Revised: 12/05/2008] [Accepted: 12/23/2008] [Indexed: 01/10/2023]
Abstract
The novel weapons hypothesis states that some invasive weed species owe part of their success as invaders to allelopathy mediated by allelochemicals that are new to the native species. Presumably, no resistance has evolved among the native species to this new allelochemical (i.e., the novel weapon). In their native habitat, however, the plants that co-evolved with these invasive species have theoretically evolved defenses that obviate the allelochemical advantage. Previous studies have claimed that catechin is such a novel weapon of spotted knapweed (Centaurea stoebe = C. maculosa), an invasive species in the non-native habitat of North America. These studies indicated that (-)-catechin is more phytotoxic than (+)-catechin. Other studies have not found sufficient catechin in field soils to support this theory. We report that (-)-catechin and (+)-catechin are essentially equal, but poorly phytotoxic to a variety of plant species in bioassays without soil. In a dose/response experiment with Montana soils, we found the lowest dose for a growth reduction of two native Montana grasses (Koeleria macrantha and Festuca idahoensis) by a racemic mixture of (+/-)-catechin that ranged from about 25 to 50 mM, concentrations, orders of magnitude higher than expected in nature. Autoclaving the soil before adding the catechin did not affect the activity of catechin. We found (-)-catechin to be a potent antioxidant, in contrast to a previous claim that it acts as an allelochemical by causing oxidative stress. Our findings suggest that catechin is not a novel weapon of spotted knapweed and that other allelochemical(s) or alternative mechanisms must be found to explain the success of this species as an invader in North America.
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Céspedes CL, Avila JG, Martínez A, Serrato B, Calderón-Mugica JC, Salgado-Garciglia R. Antifungal and antibacterial activities of Mexican tarragon (Tagetes lucida). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2006; 54:3521-7. [PMID: 19127719 DOI: 10.1021/jf053071w] [Citation(s) in RCA: 66] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
Mexican tarragon (Tagetes lucida Cv. Asteraceae: Campanulatae) is an important, nutritious plant and an effective herbal medicine. Seven coumarins, 7,8-dihydroxycoumarin (4), umbelliferone (7-hydroxycoumarin) (5), scoparone (6,7-dimethoxycoumarin) (7), esculetin (6,7-dihydroxycoumarin) (11), 6-hydroxy-7-methoxycoumarin (12), herniarin (7-methoxycoumarin) (13), and scopoletin (6-methoxy-7-hydroxycoumarin) (14), and three flavonoids, patuletin (18), quercetin (19), and quercetagetin (20), were isolated from CH2Cl2 and MeOH extracts from aerial parts of T. lucida. In addition, 6,7-diacetoxy coumarin (15), 6-methoxy-7-acetylcoumarin (16), and 6-acetoxy-7-methoxycoumarin (17) derivatives were synthesized. 8-Methoxypsoralen (1), 8-acetyl-7-hydroxycoumarin (2), 7,8-dihydroxy-6-meth-oxycoumarin (3), 6,7-dimethoxy-4-methylcoumarin (6), 5,7-dihydroxy-4-methylcoumarin (8), 4-hydroxycoumarin (9), 4-hydroxy-6,7-dimethylcoumarin (10), naringenin (21), glycoside-7-rhamnonaringin (22), and rutin (23) were commercially obtained (Sigma-Aldrich). All of these compounds and extracts (M1 and M2) were assayed against bacteria and fungi. The antibacterial activity was determined on Bacillus subtilis, Escherichia coli, Proteus mirabilis, Klebsiella pneumoniae, Salmonella typhi, Salmonella sp., Shigella boydii, Shigella sp., Enterobacter aerogenes, Enterobacter agglomerans, Sarcina lutea, Staphylococcus epidermidis, Staphylococcus aureus, Yersinia enterolitica, Vibrio cholerae (three El Tor strains, CDC-V12, clinic case, and INDRE-206, were obtained from contaminated water), and V. cholerae (NO-O1). The evaluated fungi were Aspergillus niger, Penicillium notatum, Fusarium moniliforme, Fusarium sporotrichum, Rhizoctonia solani, and Trichophyton mentagrophytes. The most active compounds against Gram-positive and -negative bacteria were the dihydroxylated coumarins 3 and 4. In addition, 2-4, 6, 7, and 11 showed an interesting activity against V. cholerae, a key bacterium in the contaminated water; 2-4 were the most active. Coumarins were the most effective compounds against Gram-negative bacteria. The extract MeOH/CH2Cl2 (1: 4) M2 at 0.4 microg/disk inhibited the growth of E. coli and P. mirabilis (40%), K. pneumoniae (31.1%), Salmonella sp. (35.5%), and Shigella sp. (0%) at 72 h of culture. The dimethoxy compounds 6 and 7 showed a strong activity against fungal strains, especially T. mentagrophytes and R. solani (100% of inhibition at 125.0 and 250.0 microg/mL, respectively).
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Affiliation(s)
- Carlos L Céspedes
- Laboratorio de Fitoquímica, UBIPRO FES-Iztacala, Universidad Nacional Autónoma de Mexico, Avenida de los Barrios S/N, Los Reyes Iztacala, Tlalnepantla, Estado de Mexico, C. P. 5409, México.
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Plant growth inhibitory activities by secondary metabolites isolated from Latin American flora. ACTA ACUST UNITED AC 2006. [DOI: 10.1016/s1572-557x(05)02021-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register]
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Domínguez M, Nieto A, Marin JC, Keck AS, Jeffery E, Céspedes CL. Antioxidant activities of extracts from Barkleyanthus salicifolius (Asteraceae) and Penstemon gentianoides (Scrophulariaceae). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2005; 53:5889-95. [PMID: 16028970 DOI: 10.1021/jf0504972] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/03/2023]
Abstract
Various extracts of the aerial parts of Barkleyanthus salicifolius (Asteraceae) and Penstemon gentianoides (Scrophulariaceae) have been used in folk medicine to treat many ailments, particularly inflammation and migraine. Neither the bioactive components responsible nor the mechanisms involved have been evaluated. Here are reported antioxidant activities of their methanol, dichloromethane, and ethyl acetate extracts. Samples were evaluated for oxygen radical absorption capacity (ORAC), ferric reducing antioxidant power (FRAP), 2,2-diphenyl-1-picryl-hydrazyl (DPPH) radical scavenging, and inhibition of the formation of thiobarbituric acid reactive species (TBARS), a measure of lipid peroxidation. Antioxidant activities were strongly correlated with total polyphenol content. The most active extracts from P. gentianoides in scavenging DPPH radicals and inhibiting TBARS formation were the methanol extract (A) and a further ethyl acetate extract of this (E). Partition E was further divided into eight fractions, and both E and the fractions were compared for activity against butylated hydroxytoluene, quercetin, and tocopherol. Partition E and the most active fractions, 5 and 6, were found to have I(50) values of 14.1, 38.6, and 41.8 ppm, respectively, against DPPH and 18.5, 26.0, and 12.7 ppm, respectively, against TBARS formation. Consistent with this finding, partition E and fractions 4-6 had the greatest ORAC and FRAP values. These results show that these plants could be useful antioxidant sources.
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Affiliation(s)
- Mariana Domínguez
- Chemical Ecology Lab.2-C, Instituto de Quimica, Ciudad Universitaria, Coyoacán 04510, Mexico D.F., Mexico
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Céspedes CL, Lemus A, Salazar JR, Cabrera A, Sharma P. Herbicidal, plant growth inhibitory, and cytotoxic activities of bismuthines containing aromatic heterocycles. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2003; 51:2923-9. [PMID: 12720372 DOI: 10.1021/jf025927s] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
This work presents the herbicidal and plant growth regulatory activities of tertiary bismuthines containing heterocyclic aromatic rings of the general formula (2-C(4)H(3)X)(3)Bi, where X = S (3), O (1), or NMe (2). Toxicity against Artemia salina and herbicidal activity on Lactuca sativa, Trifolium pratense, and Lolium multiflorum were tested. In addition to the effects on mitochondrial respiration obtained from roots of Phaseolus vulgaris, these compounds also demonstrated partial radical scavenging properties against 2,2-diphenyl-1-picrylhydrazyl (DPPH). The furyl substituent is the most important structural requirement for the activity measurements observed in this study.
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Affiliation(s)
- Carlos L Céspedes
- Instituto de Química, Universidad Nacional Autónoma de México, Coyoacán 04510, Mexico D.F., Mexico.
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Céspedes CL, Uchoa A, Salazar JR, Perich F, Pardo F. Plant growth inhibitory activity of p-hydroxyacetophenones and tremetones from Chilean endemic Baccharis species and some analogous: a comparative study. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2002; 50:2283-2292. [PMID: 11929285 DOI: 10.1021/jf011108g] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Plant growth inhibitory effects of acetophenones 1-6, tremetones 7-12, and MeOH and CH(2)Cl(2) extracts from the aerial parts of Baccharis linnearis, Baccharis magellanica, and Baccharis umbelliformis collected in Chile were assayed as growth inhibitory activity in ranges of 10-500 microM and 0.1-150 ppm, respectively. The effects on seedling growth, germination, and respiration of ryegrass, lettuce, green tomato, and red clover weedy target species were measured. In addition to the inhibitory activity on bleaching of crocin induced by alkoxyl radicals, these compounds also demonstrated scavenging properties toward 2,2-diphenyl-1-picrylhydrazyl in thin-layer chromatography autographic and spectrophotometric assays. In addition, acetophenones and tremetones also showed inhibition of H(+) uptake and oxygen uptake respiration in isolated chloroplasts and mitochondria, respectively. Our results indicate that 1, 4, 7-12, and CH(2)Cl(2) extracts interfere with the dicot preemergence properties, mainly energy metabolism of the seeds at the level of respiration. These compounds appear to have selective effects on the radicle more than shoot growth of dicot seeds. Also, the levels of radicle inhibition obtained with some compounds on Physalis ixocarpa and Trifolium pratense are totally comparable to those of ovatifolin, a known natural growth inhibitor. This behavior might be responsible for its plant growth inhibitory properties and its possible role as an allelopathic agent.
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Affiliation(s)
- Carlos L Céspedes
- Instituto de Química, Universidad Nacional Autónoma de México, C.P. 04510 México D.F., México.
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